From c35773d33780f6f19fdbca01efdfc018339bed29 Mon Sep 17 00:00:00 2001
From: SowinskiBraeden <braeden@sowinski.dev>
Date: Sun, 15 Mar 2026 14:23:17 -0700
Subject: [PATCH] initial commit

---
 .env.example                   |   3 +
 .gitignore                     |   4 +
 README.md                      |  86 +++++
 app.py                         | 207 +++++++++++
 requirements.txt               |   1 +
 static/css/style.css           | 609 +++++++++++++++++++++++++++++++++
 stats.py                       | 285 +++++++++++++++
 storage.py                     | 102 ++++++
 templates/admin_dashboard.html | 120 +++++++
 templates/admin_login.html     |  23 ++
 templates/base.html            |  49 +++
 templates/leaderboard.html     | 335 ++++++++++++++++++
 templates/player_detail.html   | 141 ++++++++
 templates/session_detail.html  |  82 +++++
 templates/sessions.html        |  48 +++
 15 files changed, 2095 insertions(+)
 create mode 100644 .env.example
 create mode 100644 .gitignore
 create mode 100644 README.md
 create mode 100644 app.py
 create mode 100644 requirements.txt
 create mode 100644 static/css/style.css
 create mode 100644 stats.py
 create mode 100644 storage.py
 create mode 100644 templates/admin_dashboard.html
 create mode 100644 templates/admin_login.html
 create mode 100644 templates/base.html
 create mode 100644 templates/leaderboard.html
 create mode 100644 templates/player_detail.html
 create mode 100644 templates/session_detail.html
 create mode 100644 templates/sessions.html

diff --git a/.env.example b/.env.example
new file mode 100644
index 0000000..d072de1
--- /dev/null
+++ b/.env.example
@@ -0,0 +1,3 @@
+SECRET_KEY=replace-this-with-a-long-random-string
+ADMIN_USERNAME=admin
+ADMIN_PASSWORD=replace-this-password
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..dc0553c
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+.env
+/__pycache__/*
+/.venv/*
+/data/*
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..a8b29e4
--- /dev/null
+++ b/README.md
@@ -0,0 +1,86 @@
+# Poker Portal
+
+A small server-rendered poker ledger app for low-stakes no-limit hold'em nights.
+
+## Stack
+
+- Python
+- Flask
+- Jinja templates
+- Chart.js
+- Custom CSS
+- Append-only CSV event ledger
+
+## What this MVP does
+
+- Public all-time leaderboard
+- Public session archive
+- Public per-player stat pages
+- Admin-only login for adding ledger events
+- Append-only `entries.csv` audit trail
+- Buy-ins, cash-outs, note-only events, and correction events using negative amounts
+- Cumulative profit chart and player charts
+
+## Ledger model
+
+The app treats the CSV as an append-only audit trail.
+
+Each row is one event:
+
+- `buyin`
+- `cashout`
+- `note`
+
+This means you do not edit old rows when something changes. Instead, you append:
+
+- another buy-in row for a rebuy
+- another cash-out row if they cash more later
+- a negative amount to correct a mistaken buy-in or cash-out
+- a `note` row for bookkeeping context
+
+## CSV format
+
+`data/entries.csv`
+
+```csv
+id,created_at,session_date,player_name,event_type,amount_cents,note,actor
+```
+
+## Run locally
+
+```bash
+python -m venv .venv
+source .venv/bin/activate
+pip install -r requirements.txt
+cp .env.example .env
+export $(grep -v '^#' .env | xargs)
+python app.py
+```
+
+Open:
+
+- public site: `http://127.0.0.1:5000/leaderboard`
+- admin login: `http://127.0.0.1:5000/admin/login`
+
+## Default environment values
+
+The app reads these environment variables:
+
+- `SECRET_KEY`
+- `ADMIN_USERNAME`
+- `ADMIN_PASSWORD`
+
+If you do not set them, the app falls back to insecure defaults for local development only.
+
+## Suggested next steps
+
+- Add session filters like last 5, 10, 20, all
+- Add player color editing
+- Add export/import tools
+- Add session status like open and closed
+- Replace CSV storage with SQLite later without changing the page layer
+- Add reverse proxy deployment with Caddy or Nginx
+
+## Deploy notes
+
+For a private home-hosted deployment, I would run this behind Caddy or Nginx and set real environment variables instead of using defaults.
diff --git a/app.py b/app.py
new file mode 100644
index 0000000..e0adcc4
--- /dev/null
+++ b/app.py
@@ -0,0 +1,207 @@
+from __future__ import annotations
+
+import os
+from pathlib import Path
+
+from flask import Flask, flash, redirect, render_template, request, session, url_for
+
+from stats import (
+    build_leaderboard,
+    build_session_summaries,
+    cents_to_dollars,
+    cumulative_profit_series,
+    player_session_series,
+    safe_date_label,
+    session_events,
+    unique_player_names,
+)
+from storage import append_event, ensure_data_file, load_events
+
+BASE_DIR = Path(__file__).resolve().parent
+DATA_PATH = BASE_DIR / "data" / "entries.csv"
+ENV_PATH = BASE_DIR / ".env"
+
+
+def load_local_env(env_path: Path) -> None:
+    if not env_path.exists():
+        return
+
+    for raw_line in env_path.read_text(encoding="utf-8").splitlines():
+        line = raw_line.strip()
+        if not line or line.startswith("#") or "=" not in line:
+            continue
+
+        key, value = line.split("=", 1)
+        key = key.strip()
+        value = value.strip().strip('"').strip("'")
+        os.environ.setdefault(key, value)
+
+
+load_local_env(ENV_PATH)
+
+app = Flask(__name__)
+app.config["SECRET_KEY"] = os.getenv("SECRET_KEY", "change-this-before-deploying")
+app.config["ADMIN_USERNAME"] = os.getenv("ADMIN_USERNAME", "admin")
+app.config["ADMIN_PASSWORD"] = os.getenv("ADMIN_PASSWORD", "change-me")
+app.config["SESSION_COOKIE_HTTPONLY"] = True
+app.config["SESSION_COOKIE_SAMESITE"] = "Lax"
+app.config["SESSION_COOKIE_NAME"] = "poker_portal_session"
+
+ensure_data_file(DATA_PATH)
+app.jinja_env.filters["money"] = cents_to_dollars
+app.jinja_env.filters["pretty_date"] = safe_date_label
+
+
+def is_admin() -> bool:
+    return bool(session.get("is_admin"))
+
+
+@app.context_processor
+def inject_globals() -> dict[str, object]:
+    return {"is_admin": is_admin()}
+
+
+@app.get("/")
+def home() -> str:
+    return redirect(url_for("leaderboard"))
+
+
+@app.get("/leaderboard")
+def leaderboard() -> str:
+    events = load_events(DATA_PATH)
+    sessions = build_session_summaries(events)
+    board = build_leaderboard(sessions)
+    chart_data = cumulative_profit_series(sessions)
+    return render_template(
+        "leaderboard.html",
+        leaderboard=board,
+        session_count=len(sessions),
+        chart_data=chart_data,
+    )
+
+
+@app.get("/sessions")
+def sessions() -> str:
+    events = load_events(DATA_PATH)
+    session_summaries = build_session_summaries(events)
+    return render_template("sessions.html", sessions=session_summaries)
+
+
+@app.get("/sessions/<session_date>")
+def session_detail(session_date: str) -> str:
+    events = load_events(DATA_PATH)
+    sessions = build_session_summaries(events)
+    target_session = next(
+        (
+            session_summary
+            for session_summary in sessions
+            if session_summary.session_date == session_date
+        ),
+        None,
+    )
+    if target_session is None:
+        flash("That session was not found.", "error")
+        return redirect(url_for("sessions"))
+
+    return render_template(
+        "session_detail.html",
+        session=target_session,
+        raw_events=session_events(events, session_date),
+    )
+
+
+@app.get("/players/<player_name>")
+def player_detail(player_name: str) -> str:
+    events = load_events(DATA_PATH)
+    sessions = build_session_summaries(events)
+    board = build_leaderboard(sessions)
+    player_stats = next(
+        (player for player in board if player.player_name == player_name), None
+    )
+    if player_stats is None:
+        flash("That player was not found.", "error")
+        return redirect(url_for("leaderboard"))
+
+    chart_data = player_session_series(sessions, player_name)
+    return render_template(
+        "player_detail.html",
+        player=player_stats,
+        chart_data=chart_data,
+    )
+
+
+@app.route("/admin/login", methods=["GET", "POST"])
+def admin_login() -> str:
+    if request.method == "POST":
+        username = request.form.get("username", "").strip()
+        password = request.form.get("password", "")
+
+        if (
+            username == app.config["ADMIN_USERNAME"]
+            and password == app.config["ADMIN_PASSWORD"]
+        ):
+            session["is_admin"] = True
+            flash("Admin login successful.", "success")
+            return redirect(url_for("admin_dashboard"))
+
+        flash("Invalid admin credentials.", "error")
+
+    return render_template("admin_login.html")
+
+
+@app.post("/admin/logout")
+def admin_logout() -> str:
+    session.clear()
+    flash("Logged out.", "success")
+    return redirect(url_for("leaderboard"))
+
+
+@app.route("/admin", methods=["GET", "POST"])
+def admin_dashboard() -> str:
+    if not is_admin():
+        flash("Admin login required.", "error")
+        return redirect(url_for("admin_login"))
+
+    if request.method == "POST":
+        session_date = request.form.get("session_date", "").strip()
+        player_name = request.form.get("player_name", "").strip()
+        event_type = request.form.get("event_type", "").strip()
+        amount_raw = request.form.get("amount", "0").strip()
+        note = request.form.get("note", "").strip()
+
+        if not session_date or not player_name or not event_type:
+            flash("Session date, player name, and event type are required.", "error")
+            return redirect(url_for("admin_dashboard"))
+
+        try:
+            amount_cents = 0 if event_type == "note" else round(float(amount_raw) * 100)
+        except ValueError:
+            flash("Amount must be a valid number.", "error")
+            return redirect(url_for("admin_dashboard"))
+
+        append_event(
+            DATA_PATH,
+            session_date=session_date,
+            player_name=player_name,
+            event_type=event_type,
+            amount_cents=amount_cents,
+            note=note,
+            actor=app.config["ADMIN_USERNAME"],
+        )
+        flash("Event added to the ledger.", "success")
+        return redirect(url_for("admin_dashboard"))
+
+    events = load_events(DATA_PATH)
+    sessions = build_session_summaries(events)
+    recent_sessions = sessions[:6]
+    recent_events = list(reversed(events[-20:]))
+    return render_template(
+        "admin_dashboard.html",
+        recent_sessions=recent_sessions,
+        recent_events=recent_events,
+        player_names=unique_player_names(events),
+    )
+
+
+if __name__ == "__main__":
+    app.run(debug=True)
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..22ac75b
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1 @@
+Flask==3.1.0
diff --git a/static/css/style.css b/static/css/style.css
new file mode 100644
index 0000000..8455a19
--- /dev/null
+++ b/static/css/style.css
@@ -0,0 +1,609 @@
+:root {
+    --bg: #07111f;
+    --bg-accent: #0b1830;
+    --panel: rgba(11, 24, 48, 0.82);
+    --panel-strong: rgba(13, 28, 55, 0.95);
+    --line: rgba(157, 176, 199, 0.14);
+    --text: #e5eefb;
+    --text-muted: #9db0c7;
+    --green: #22c55e;
+    --red: #ef4444;
+    --amber: #f59e0b;
+    --gold: #f5c76a;
+    --shadow: 0 22px 60px rgba(0, 0, 0, 0.35);
+    --radius: 24px;
+}
+
+* {
+    box-sizing: border-box;
+}
+
+body {
+    margin: 0;
+    font-family: "Inter", sans-serif;
+    color: var(--text);
+    background:
+        radial-gradient(circle at top left, rgba(124, 156, 255, 0.16), transparent 22%),
+        radial-gradient(circle at top right, rgba(94, 234, 212, 0.11), transparent 18%),
+        linear-gradient(180deg, #06101d 0%, #091426 100%);
+    min-height: 100vh;
+}
+
+body::before {
+    content: "";
+    position: fixed;
+    inset: 0;
+    background-image: linear-gradient(rgba(255,255,255,0.018) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.018) 1px, transparent 1px);
+    background-size: 34px 34px;
+    pointer-events: none;
+    opacity: 0.4;
+}
+
+ a {
+    color: var(--text);
+    text-decoration: none;
+}
+
+.site-shell {
+    width: min(1260px, calc(100% - 32px));
+    margin: 0 auto;
+    padding: 28px 0 52px;
+}
+
+.topbar {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    gap: 24px;
+    margin-bottom: 28px;
+    padding: 18px 22px;
+    border: 1px solid var(--line);
+    border-radius: 999px;
+    background: rgba(6, 16, 29, 0.74);
+    backdrop-filter: blur(16px);
+    box-shadow: var(--shadow);
+}
+
+.brand {
+    font-size: 1.3rem;
+    font-weight: 800;
+    letter-spacing: -0.03em;
+}
+
+.brand-subtitle {
+    margin: 4px 0 0;
+    color: var(--text-muted);
+    font-size: 0.93rem;
+}
+
+.nav-links {
+    display: flex;
+    align-items: center;
+    gap: 16px;
+    flex-wrap: wrap;
+}
+
+.nav-links a,
+.ghost-button {
+    color: var(--text);
+    background: transparent;
+    border: none;
+    font: inherit;
+    cursor: pointer;
+    padding: 10px 14px;
+    border-radius: 999px;
+}
+
+.nav-links a:hover,
+.ghost-button:hover {
+    background: rgba(124, 156, 255, 0.12);
+}
+
+.flash-stack {
+    display: grid;
+    gap: 10px;
+    margin-bottom: 20px;
+}
+
+.flash {
+    border-radius: 18px;
+    padding: 14px 16px;
+    border: 1px solid var(--line);
+    backdrop-filter: blur(14px);
+}
+
+.flash.success {
+    background: rgba(34, 197, 94, 0.12);
+}
+
+.flash.error {
+    background: rgba(244, 63, 94, 0.12);
+}
+
+.page-content {
+    display: grid;
+    gap: 24px;
+}
+
+.hero-card,
+.panel {
+    border-radius: var(--radius);
+    border: 1px solid var(--line);
+    background: var(--panel);
+    box-shadow: var(--shadow);
+    backdrop-filter: blur(18px);
+}
+
+.hero-card {
+    padding: 28px;
+    background:
+        linear-gradient(135deg, rgba(124, 156, 255, 0.13), transparent 40%),
+        linear-gradient(180deg, rgba(11, 24, 48, 0.96), rgba(9, 20, 38, 0.92));
+}
+
+.hero-card.compact {
+    padding: 24px 28px;
+}
+
+.panel {
+    padding: 24px;
+}
+
+.panel-header {
+    display: flex;
+    justify-content: space-between;
+    align-items: flex-start;
+    gap: 12px;
+    margin-bottom: 18px;
+}
+
+.eyebrow {
+    margin: 0 0 6px;
+    text-transform: uppercase;
+    letter-spacing: 0.14em;
+    font-size: 0.74rem;
+    color: var(--gold);
+    font-weight: 700;
+}
+
+h1,
+h2 {
+    margin: 0;
+    letter-spacing: -0.04em;
+}
+
+h1 {
+    font-size: clamp(2rem, 4vw, 3.2rem);
+}
+
+h2 {
+    font-size: 1.38rem;
+}
+
+.muted-text {
+    color: var(--text-muted);
+    line-height: 1.6;
+}
+
+.muted-text.small,
+.tiny-text {
+    font-size: 0.88rem;
+}
+
+.tiny-text {
+    color: #8092ab;
+}
+
+.grid {
+    display: grid;
+    gap: 24px;
+}
+
+.two-col {
+    grid-template-columns: 1.7fr 1fr;
+}
+
+.three-col {
+    grid-template-columns: repeat(3, 1fr);
+}
+
+.chart-panel {
+    min-height: 420px;
+}
+
+.chart-panel-large {
+    min-height: 500px;
+}
+
+.chart-frame {
+    position: relative;
+    min-height: 360px;
+}
+
+.chart-panel-large .chart-frame {
+    min-height: 430px;
+}
+
+.chart-frame-interactive {
+    cursor: zoom-in;
+}
+
+.chart-frame-interactive:focus-visible {
+    outline: 2px solid rgba(245, 199, 106, 0.7);
+    outline-offset: 6px;
+}
+
+.chart-panel canvas,
+.chart-frame canvas,
+.chart-modal-frame canvas {
+    width: 100% !important;
+    height: 100% !important;
+}
+
+.stat-panel,
+.stat-card {
+    display: grid;
+    align-content: start;
+}
+
+.stat-list {
+    display: grid;
+    gap: 14px;
+}
+
+.stat-row {
+    display: flex;
+    justify-content: space-between;
+    gap: 14px;
+    padding: 12px 0;
+    border-bottom: 1px solid var(--line);
+}
+
+.stat-card {
+    gap: 8px;
+}
+
+.stat-card span {
+    color: var(--text-muted);
+}
+
+.stat-card strong {
+    font-size: 1.75rem;
+    letter-spacing: -0.04em;
+}
+
+.table-wrap {
+    overflow-x: auto;
+}
+
+table {
+    width: 100%;
+    border-collapse: collapse;
+}
+
+th,
+td {
+    text-align: left;
+    padding: 14px 14px;
+    border-bottom: 1px solid var(--line);
+    white-space: nowrap;
+}
+
+th {
+    color: var(--text-muted);
+    font-size: 0.83rem;
+    text-transform: uppercase;
+    letter-spacing: 0.08em;
+}
+
+tbody tr:hover {
+    background: rgba(124, 156, 255, 0.06);
+}
+
+.positive {
+    color: var(--green);
+    font-weight: 700;
+}
+
+.negative {
+    color: var(--red);
+    font-weight: 700;
+}
+
+.neutral {
+    color: var(--amber);
+    font-weight: 700;
+}
+
+.form-shell {
+    display: flex;
+    justify-content: center;
+}
+
+.form-shell.narrow {
+    min-height: 55vh;
+    align-items: center;
+}
+
+.form-card {
+    display: grid;
+    gap: 16px;
+}
+
+.form-card label {
+    display: grid;
+    gap: 8px;
+}
+
+.form-card span {
+    font-size: 0.94rem;
+    color: var(--text-muted);
+}
+
+input,
+select,
+textarea,
+button {
+    font: inherit;
+}
+
+input,
+select,
+textarea {
+    width: 100%;
+    padding: 13px 14px;
+    border-radius: 16px;
+    border: 1px solid rgba(157, 176, 199, 0.18);
+    background: rgba(7, 17, 31, 0.78);
+    color: var(--text);
+    outline: none;
+}
+
+input:focus,
+select:focus,
+textarea:focus {
+    border-color: rgba(124, 156, 255, 0.7);
+    box-shadow: 0 0 0 4px rgba(124, 156, 255, 0.14);
+}
+
+.primary-button {
+    padding: 14px 18px;
+    border: none;
+    border-radius: 16px;
+    background: linear-gradient(135deg, #f4a261 0%, #2a9d8f 100%);
+    color: #07111f;
+    font-weight: 800;
+    cursor: pointer;
+}
+
+.secondary-button {
+    padding: 11px 14px;
+    border: 1px solid var(--line);
+    border-radius: 14px;
+    background: rgba(255, 255, 255, 0.04);
+    color: var(--text);
+    font-weight: 600;
+    cursor: pointer;
+}
+
+.secondary-button:hover {
+    background: rgba(255, 255, 255, 0.08);
+}
+
+.helper-box {
+    display: flex;
+    gap: 10px;
+    align-items: flex-start;
+    border-radius: 18px;
+    border: 1px solid var(--line);
+    padding: 14px 16px;
+    color: var(--text-muted);
+    background: rgba(244, 162, 97, 0.06);
+}
+
+.note-list {
+    margin: 0;
+    padding-left: 18px;
+    color: var(--text-muted);
+    white-space: normal;
+}
+
+.event-feed {
+    display: grid;
+    gap: 12px;
+    max-height: 580px;
+    overflow-y: auto;
+    padding-right: 2px;
+}
+
+.event-feed.condensed {
+    max-height: 420px;
+}
+
+.event-card {
+    padding: 16px;
+    border-radius: 20px;
+    border: 1px solid var(--line);
+    background: rgba(7, 17, 31, 0.72);
+}
+
+.event-card-top {
+    display: flex;
+    justify-content: space-between;
+    gap: 12px;
+    align-items: center;
+}
+
+.event-amount {
+    margin: 10px 0 6px;
+    font-size: 1.2rem;
+    font-weight: 700;
+    letter-spacing: -0.04em;
+}
+
+.pill {
+    border-radius: 999px;
+    padding: 6px 10px;
+    background: rgba(244, 162, 97, 0.12);
+    color: #ffd3ab;
+    font-size: 0.77rem;
+    text-transform: uppercase;
+    letter-spacing: 0.08em;
+}
+
+.stack-gap {
+    display: grid;
+    gap: 24px;
+}
+
+.narrow {
+    max-width: 520px;
+    width: 100%;
+}
+
+.small-table table th,
+.small-table table td {
+    padding: 12px;
+}
+
+@media (max-width: 980px) {
+    .two-col,
+    .three-col,
+    .session-layout,
+    .admin-layout {
+        grid-template-columns: 1fr;
+    }
+
+    .topbar {
+        border-radius: 28px;
+        padding: 20px;
+        align-items: flex-start;
+        flex-direction: column;
+    }
+}
+
+@media (max-width: 640px) {
+    .site-shell {
+        width: min(100% - 18px, 100%);
+        padding-top: 18px;
+    }
+
+    .panel,
+    .hero-card {
+        padding: 18px;
+        border-radius: 22px;
+    }
+
+    h1 {
+        font-size: 2rem;
+    }
+
+    .nav-links {
+        width: 100%;
+    }
+}
+
+
+.panel-header-with-actions {
+    align-items: center;
+}
+
+.panel-actions {
+    display: flex;
+    gap: 10px;
+    align-items: center;
+    flex-wrap: wrap;
+}
+
+.sortable-table th {
+    padding-top: 10px;
+    padding-bottom: 10px;
+}
+
+.sort-button {
+    display: inline-flex;
+    align-items: center;
+    gap: 8px;
+    width: 100%;
+    padding: 0;
+    border: none;
+    background: transparent;
+    color: inherit;
+    text-transform: inherit;
+    letter-spacing: inherit;
+    font: inherit;
+    cursor: pointer;
+}
+
+.sort-button:hover,
+.sort-button.is-active {
+    color: var(--text);
+}
+
+.sort-indicator {
+    color: var(--text-soft, #8092ab);
+    font-size: 0.9em;
+}
+
+.chart-modal {
+    position: fixed;
+    inset: 0;
+    display: none;
+    align-items: stretch;
+    justify-content: center;
+    padding: 24px;
+    z-index: 200;
+}
+
+.chart-modal.is-open {
+    display: flex;
+}
+
+.chart-modal-backdrop {
+    position: absolute;
+    inset: 0;
+    background: rgba(3, 6, 12, 0.76);
+    backdrop-filter: blur(10px);
+}
+
+.chart-modal-card {
+    position: relative;
+    z-index: 1;
+    width: min(1280px, 100%);
+    min-height: calc(100vh - 48px);
+    border-radius: 28px;
+    border: 1px solid var(--line);
+    background: rgba(11, 17, 24, 0.96);
+    box-shadow: var(--shadow);
+    padding: 24px;
+    display: grid;
+    grid-template-rows: auto 1fr;
+    gap: 18px;
+}
+
+.chart-modal-frame {
+    min-height: 70vh;
+}
+
+body.modal-open {
+    overflow: hidden;
+}
+
+@media (max-width: 980px) {
+    .leaderboard-layout {
+        grid-template-columns: 1fr;
+    }
+
+    .chart-modal {
+        padding: 12px;
+    }
+
+    .chart-modal-card {
+        min-height: calc(100vh - 24px);
+        padding: 18px;
+    }
+
+    .chart-modal-frame {
+        min-height: 62vh;
+    }
+}
diff --git a/stats.py b/stats.py
new file mode 100644
index 0000000..8235c04
--- /dev/null
+++ b/stats.py
@@ -0,0 +1,285 @@
+from __future__ import annotations
+
+from collections import defaultdict
+from dataclasses import dataclass, field
+from datetime import datetime
+from typing import Any
+
+from storage import EventRow
+
+PLAYER_PALETTE = [
+    "#f4a261",
+    "#2a9d8f",
+    "#8d99ae",
+    "#e76f51",
+    "#7c6cf2",
+    "#84cc16",
+    "#f59e0b",
+    "#10b981",
+    "#ef4444",
+    "#06b6d4",
+    "#a855f7",
+    "#eab308",
+]
+
+
+@dataclass
+class SessionEntry:
+    session_date: str
+    player_name: str
+    buy_in_cents: int = 0
+    cash_out_cents: int = 0
+    notes: list[str] = field(default_factory=list)
+
+    @property
+    def net_cents(self) -> int:
+        return self.cash_out_cents - self.buy_in_cents
+
+
+@dataclass
+class SessionSummary:
+    session_date: str
+    entries: list[SessionEntry]
+
+    @property
+    def total_buy_in_cents(self) -> int:
+        return sum(entry.buy_in_cents for entry in self.entries)
+
+    @property
+    def total_cash_out_cents(self) -> int:
+        return sum(entry.cash_out_cents for entry in self.entries)
+
+    @property
+    def total_net_cents(self) -> int:
+        return sum(entry.net_cents for entry in self.entries)
+
+
+@dataclass
+class PlayerStats:
+    player_name: str
+    sessions_played: int
+    winning_sessions: int
+    losing_sessions: int
+    break_even_sessions: int
+    win_pct: float
+    avg_win_cents: int
+    avg_loss_cents: int
+    biggest_win_cents: int
+    biggest_loss_cents: int
+    total_buy_in_cents: int
+    total_cash_out_cents: int
+    total_net_cents: int
+    roi_pct: float
+
+
+
+def cents_to_dollars(cents: int) -> str:
+    value = cents / 100
+    return f"${value:,.2f}"
+
+
+
+def safe_date_label(session_date: str) -> str:
+    try:
+        return datetime.strptime(session_date, "%Y-%m-%d").strftime("%b %d, %Y")
+    except ValueError:
+        return session_date
+
+
+
+def color_for_name(name: str, names: list[str]) -> str:
+    try:
+        index = sorted(names, key=str.casefold).index(name)
+    except ValueError:
+        index = abs(hash(name))
+    return PLAYER_PALETTE[index % len(PLAYER_PALETTE)]
+
+
+
+def net_tone(value_cents: int) -> str:
+    if value_cents > 0:
+        return "#22c55e"
+    if value_cents < 0:
+        return "#ef4444"
+    return "#f59e0b"
+
+
+
+def build_session_summaries(events: list[EventRow]) -> list[SessionSummary]:
+    grouped: dict[tuple[str, str], SessionEntry] = {}
+
+    for event in events:
+        key = (event["session_date"], event["player_name"])
+        if key not in grouped:
+            grouped[key] = SessionEntry(
+                session_date=event["session_date"],
+                player_name=event["player_name"],
+            )
+
+        entry = grouped[key]
+        if event["event_type"] == "buyin":
+            entry.buy_in_cents += event["amount_cents"]
+        elif event["event_type"] == "cashout":
+            entry.cash_out_cents += event["amount_cents"]
+
+        if event["note"]:
+            entry.notes.append(event["note"])
+
+    by_session: dict[str, list[SessionEntry]] = defaultdict(list)
+    for entry in grouped.values():
+        by_session[entry.session_date].append(entry)
+
+    sessions = [
+        SessionSummary(
+            session_date=session_date,
+            entries=sorted(entries, key=lambda entry: entry.player_name.casefold()),
+        )
+        for session_date, entries in by_session.items()
+    ]
+    sessions.sort(key=lambda session: session.session_date, reverse=True)
+    return sessions
+
+
+
+def build_leaderboard(sessions: list[SessionSummary]) -> list[PlayerStats]:
+    player_entries: dict[str, list[SessionEntry]] = defaultdict(list)
+    for session in sessions:
+        for entry in session.entries:
+            player_entries[entry.player_name].append(entry)
+
+    leaderboard: list[PlayerStats] = []
+    for player_name, entries in player_entries.items():
+        nets = [entry.net_cents for entry in entries]
+        wins = [value for value in nets if value > 0]
+        losses = [value for value in nets if value < 0]
+        total_buy_in = sum(entry.buy_in_cents for entry in entries)
+        total_cash_out = sum(entry.cash_out_cents for entry in entries)
+        total_net = total_cash_out - total_buy_in
+        sessions_played = len(entries)
+        winning_sessions = len(wins)
+        losing_sessions = len(losses)
+        break_even_sessions = sessions_played - winning_sessions - losing_sessions
+        win_pct = (winning_sessions / sessions_played * 100) if sessions_played else 0.0
+        avg_win = round(sum(wins) / len(wins)) if wins else 0
+        avg_loss = round(sum(abs(value) for value in losses) / len(losses)) if losses else 0
+        biggest_win = max(wins) if wins else 0
+        biggest_loss = min(losses) if losses else 0
+        roi_pct = (total_net / total_buy_in * 100) if total_buy_in else 0.0
+
+        leaderboard.append(
+            PlayerStats(
+                player_name=player_name,
+                sessions_played=sessions_played,
+                winning_sessions=winning_sessions,
+                losing_sessions=losing_sessions,
+                break_even_sessions=break_even_sessions,
+                win_pct=win_pct,
+                avg_win_cents=avg_win,
+                avg_loss_cents=avg_loss,
+                biggest_win_cents=biggest_win,
+                biggest_loss_cents=biggest_loss,
+                total_buy_in_cents=total_buy_in,
+                total_cash_out_cents=total_cash_out,
+                total_net_cents=total_net,
+                roi_pct=roi_pct,
+            )
+        )
+
+    leaderboard.sort(
+        key=lambda player: (player.total_net_cents, player.total_cash_out_cents),
+        reverse=True,
+    )
+    return leaderboard
+
+
+
+def cumulative_profit_series(sessions: list[SessionSummary]) -> dict[str, Any]:
+    ordered_sessions = sorted(sessions, key=lambda session: session.session_date)
+    player_names = sorted(
+        {entry.player_name for session in ordered_sessions for entry in session.entries},
+        key=str.casefold,
+    )
+
+    labels = [safe_date_label(session.session_date) for session in ordered_sessions]
+    datasets = []
+
+    for player_name in player_names:
+        series: list[float | None] = []
+        running_total = 0
+        has_started = False
+
+        for session in ordered_sessions:
+            matching_entry = next(
+                (entry for entry in session.entries if entry.player_name == player_name),
+                None,
+            )
+            if matching_entry is not None:
+                has_started = True
+                running_total += matching_entry.net_cents
+                series.append(round(running_total / 100, 2))
+            elif has_started:
+                series.append(round(running_total / 100, 2))
+            else:
+                series.append(None)
+
+        datasets.append(
+            {
+                "label": player_name,
+                "data": series,
+                "borderColor": color_for_name(player_name, player_names),
+                "backgroundColor": color_for_name(player_name, player_names),
+                "pointRadius": 3,
+                "pointHoverRadius": 5,
+                "pointHitRadius": 10,
+                "borderWidth": 2.5,
+                "tension": 0.22,
+                "spanGaps": False,
+            }
+        )
+
+    return {"labels": labels, "datasets": datasets}
+
+
+
+def player_session_series(sessions: list[SessionSummary], player_name: str) -> dict[str, Any]:
+    ordered_sessions = sorted(sessions, key=lambda session: session.session_date)
+    labels: list[str] = []
+    net_values: list[float] = []
+    cumulative_values: list[float] = []
+    running_total = 0
+
+    all_player_names = sorted(
+        {entry.player_name for session in ordered_sessions for entry in session.entries},
+        key=str.casefold,
+    )
+
+    for session in ordered_sessions:
+        matching_entry = next(
+            (entry for entry in session.entries if entry.player_name == player_name),
+            None,
+        )
+        if matching_entry is None:
+            continue
+
+        labels.append(safe_date_label(session.session_date))
+        net_values.append(round(matching_entry.net_cents / 100, 2))
+        running_total += matching_entry.net_cents
+        cumulative_values.append(round(running_total / 100, 2))
+
+    return {
+        "labels": labels,
+        "color": color_for_name(player_name, all_player_names),
+        "net_values": net_values,
+        "net_colors": [net_tone(round(value * 100)) for value in net_values],
+        "cumulative_values": cumulative_values,
+    }
+
+
+
+def session_events(events: list[EventRow], session_date: str) -> list[EventRow]:
+    return [event for event in events if event["session_date"] == session_date]
+
+
+
+def unique_player_names(events: list[EventRow]) -> list[str]:
+    return sorted({event["player_name"] for event in events}, key=str.casefold)
diff --git a/storage.py b/storage.py
new file mode 100644
index 0000000..478fe21
--- /dev/null
+++ b/storage.py
@@ -0,0 +1,102 @@
+from __future__ import annotations
+
+import csv
+import uuid
+from datetime import datetime, timezone
+from pathlib import Path
+from typing import TypedDict
+
+CSV_HEADERS = [
+    "id",
+    "created_at",
+    "session_date",
+    "player_name",
+    "event_type",
+    "amount_cents",
+    "note",
+    "actor",
+]
+
+
+class EventRow(TypedDict):
+    id: str
+    created_at: str
+    session_date: str
+    player_name: str
+    event_type: str
+    amount_cents: int
+    note: str
+    actor: str
+
+
+VALID_EVENT_TYPES = {"buyin", "cashout", "note"}
+
+
+def ensure_data_file(csv_path: Path) -> None:
+    csv_path.parent.mkdir(parents=True, exist_ok=True)
+    if csv_path.exists():
+        return
+
+    with csv_path.open("w", newline="", encoding="utf-8") as file:
+        writer = csv.DictWriter(file, fieldnames=CSV_HEADERS)
+        writer.writeheader()
+
+
+def load_events(csv_path: Path) -> list[EventRow]:
+    ensure_data_file(csv_path)
+
+    events: list[EventRow] = []
+    with csv_path.open("r", newline="", encoding="utf-8") as file:
+        reader = csv.DictReader(file)
+        for row in reader:
+            events.append(
+                EventRow(
+                    id=row["id"],
+                    created_at=row["created_at"],
+                    session_date=row["session_date"],
+                    player_name=row["player_name"],
+                    event_type=row["event_type"],
+                    amount_cents=int(row["amount_cents"] or 0),
+                    note=row.get("note", ""),
+                    actor=row.get("actor", ""),
+                )
+            )
+
+    events.sort(key=lambda event: (event["session_date"], event["created_at"], event["id"]))
+    return events
+
+
+def append_event(
+    csv_path: Path,
+    session_date: str,
+    player_name: str,
+    event_type: str,
+    amount_cents: int,
+    note: str,
+    actor: str,
+) -> EventRow:
+    ensure_data_file(csv_path)
+
+    normalized_type = event_type.strip().lower()
+    if normalized_type not in VALID_EVENT_TYPES:
+        raise ValueError(f"Unsupported event type: {event_type}")
+
+    if normalized_type == "note":
+        amount_cents = 0
+
+    event = EventRow(
+        id=str(uuid.uuid4()),
+        created_at=datetime.now(timezone.utc).isoformat(),
+        session_date=session_date.strip(),
+        player_name=player_name.strip(),
+        event_type=normalized_type,
+        amount_cents=amount_cents,
+        note=note.strip(),
+        actor=actor.strip(),
+    )
+
+    with csv_path.open("a", newline="", encoding="utf-8") as file:
+        writer = csv.DictWriter(file, fieldnames=CSV_HEADERS)
+        writer.writerow(event)
+
+    return event
diff --git a/templates/admin_dashboard.html b/templates/admin_dashboard.html
new file mode 100644
index 0000000..dc3fda4
--- /dev/null
+++ b/templates/admin_dashboard.html
@@ -0,0 +1,120 @@
+{% extends "base.html" %}
+{% block title %}Admin · Poker Portal{% endblock %}
+{% block content %}
+<section class="hero-card compact">
+    <div>
+        <p class="eyebrow">Admin</p>
+        <h1>Ledger controls</h1>
+        <p class="muted-text">Append new buy-ins, cash-outs, corrections, and note-only events to the audit trail.</p>
+    </div>
+</section>
+
+<section class="grid two-col admin-layout">
+    <form class="panel form-card" method="post">
+        <p class="eyebrow">New event</p>
+        <h2>Add to the ledger</h2>
+
+        <label>
+            <span>Session date</span>
+            <input type="date" name="session_date" required>
+        </label>
+
+        <label>
+            <span>Player name</span>
+            <input list="player_names" type="text" name="player_name" placeholder="Braeden" required>
+            <datalist id="player_names">
+                {% for player_name in player_names %}
+                    <option value="{{ player_name }}"></option>
+                {% endfor %}
+            </datalist>
+        </label>
+
+        <label>
+            <span>Event type</span>
+            <select name="event_type" required>
+                <option value="buyin">Buy-in</option>
+                <option value="cashout">Cash-out</option>
+                <option value="note">Note only</option>
+            </select>
+        </label>
+
+        <label>
+            <span>Amount</span>
+            <input type="number" step="0.01" name="amount" placeholder="50.00">
+        </label>
+
+        <label>
+            <span>Note</span>
+            <textarea name="note" rows="4" placeholder="Rebuy, correction, settled chips later, etc."></textarea>
+        </label>
+
+        <div class="helper-box">
+            <strong>Tip:</strong>
+            <span>Use positive amounts for normal buy-ins and cash-outs. Use negative amounts to correct a previous entry without editing history.</span>
+        </div>
+
+        <button class="primary-button" type="submit">Add event</button>
+    </form>
+
+    <div class="stack-gap">
+        <section class="panel">
+            <div class="panel-header">
+                <div>
+                    <p class="eyebrow">Recent sessions</p>
+                    <h2>Current totals</h2>
+                </div>
+            </div>
+            <div class="table-wrap small-table">
+                <table>
+                    <thead>
+                        <tr>
+                            <th>Date</th>
+                            <th>Players</th>
+                            <th>Buy-ins</th>
+                            <th>Cash-outs</th>
+                        </tr>
+                    </thead>
+                    <tbody>
+                        {% for session in recent_sessions %}
+                        <tr>
+                            <td><a href="{{ url_for('session_detail', session_date=session.session_date) }}">{{ session.session_date | pretty_date }}</a></td>
+                            <td>{{ session.entries|length }}</td>
+                            <td>{{ session.total_buy_in_cents | money }}</td>
+                            <td>{{ session.total_cash_out_cents | money }}</td>
+                        </tr>
+                        {% else %}
+                        <tr>
+                            <td colspan="4">No sessions yet.</td>
+                        </tr>
+                        {% endfor %}
+                    </tbody>
+                </table>
+            </div>
+        </section>
+
+        <section class="panel">
+            <div class="panel-header">
+                <div>
+                    <p class="eyebrow">Recent raw events</p>
+                    <h2>Ledger feed</h2>
+                </div>
+            </div>
+            <div class="event-feed condensed">
+                {% for event in recent_events %}
+                <article class="event-card">
+                    <div class="event-card-top">
+                        <strong>{{ event.player_name }}</strong>
+                        <span class="pill">{{ event.event_type }}</span>
+                    </div>
+                    <p class="event-amount">{{ event.amount_cents | money }}</p>
+                    <p class="muted-text small">{{ event.session_date | pretty_date }}</p>
+                    {% if event.note %}<p class="muted-text small">{{ event.note }}</p>{% endif %}
+                </article>
+                {% else %}
+                <p class="muted-text">No recent events.</p>
+                {% endfor %}
+            </div>
+        </section>
+    </div>
+</section>
+{% endblock %}
diff --git a/templates/admin_login.html b/templates/admin_login.html
new file mode 100644
index 0000000..4479d22
--- /dev/null
+++ b/templates/admin_login.html
@@ -0,0 +1,23 @@
+{% extends "base.html" %}
+{% block title %}Admin Login · Poker Portal{% endblock %}
+{% block content %}
+<section class="form-shell narrow">
+    <form class="panel form-card" method="post">
+        <p class="eyebrow">Restricted access</p>
+        <h1>Admin login</h1>
+        <p class="muted-text">Only the ledger manager needs credentials. All stats pages stay public.</p>
+
+        <label>
+            <span>Username</span>
+            <input type="text" name="username" required>
+        </label>
+
+        <label>
+            <span>Password</span>
+            <input type="password" name="password" required>
+        </label>
+
+        <button class="primary-button" type="submit">Login</button>
+    </form>
+</section>
+{% endblock %}
diff --git a/templates/base.html b/templates/base.html
new file mode 100644
index 0000000..fc38395
--- /dev/null
+++ b/templates/base.html
@@ -0,0 +1,49 @@
+<!doctype html>
+<html lang="en">
+<head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <title>{% block title %}Poker Portal{% endblock %}</title>
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+    <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap" rel="stylesheet">
+    <link rel="stylesheet" href="{{ url_for('static', filename='css/style.css') }}">
+    <script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
+</head>
+<body>
+    <div class="site-shell">
+        <header class="topbar">
+            <div>
+                <a class="brand" href="{{ url_for('leaderboard') }}">Poker Portal</a>
+                <p class="brand-subtitle">Low-stakes hold'em ledger and session tracker</p>
+            </div>
+            <nav class="nav-links">
+                <a href="{{ url_for('leaderboard') }}">Leaderboard</a>
+                <a href="{{ url_for('sessions') }}">Sessions</a>
+                {% if is_admin %}
+                    <a href="{{ url_for('admin_dashboard') }}">Admin</a>
+                    <form method="post" action="{{ url_for('admin_logout') }}">
+                        <button class="ghost-button" type="submit">Logout</button>
+                    </form>
+                {% else %}
+                    <a href="{{ url_for('admin_login') }}">Admin Login</a>
+                {% endif %}
+            </nav>
+        </header>
+
+        {% with messages = get_flashed_messages(with_categories=true) %}
+            {% if messages %}
+                <section class="flash-stack">
+                    {% for category, message in messages %}
+                        <div class="flash {{ category }}">{{ message }}</div>
+                    {% endfor %}
+                </section>
+            {% endif %}
+        {% endwith %}
+
+        <main class="page-content">
+            {% block content %}{% endblock %}
+        </main>
+    </div>
+</body>
+</html>
diff --git a/templates/leaderboard.html b/templates/leaderboard.html
new file mode 100644
index 0000000..85b9980
--- /dev/null
+++ b/templates/leaderboard.html
@@ -0,0 +1,335 @@
+{% extends "base.html" %}
+{% block title %}Leaderboard · Poker Portal{% endblock %}
+{% block content %}
+<section class="hero-card">
+    <div>
+        <p class="eyebrow">All-time results</p>
+        <h1>Leaderboard</h1>
+        <p class="muted-text">Track who is up, who is chasing, and how everyone has moved across {{ session_count }} recorded sessions.</p>
+    </div>
+</section>
+
+<section class="grid two-col leaderboard-layout">
+    <div class="panel chart-panel chart-panel-large">
+        <div class="panel-header panel-header-with-actions">
+            <div>
+                <p class="eyebrow">Trend</p>
+                <h2>Cumulative profit over time</h2>
+            </div>
+            <div class="panel-actions">
+                <button class="secondary-button" type="button" id="expandLeaderboardChart">Expand chart</button>
+            </div>
+        </div>
+        <div class="chart-frame chart-frame-interactive" id="leaderboardChartFrame" role="button" tabindex="0" aria-label="Expand cumulative profit chart">
+            <canvas id="leaderboardChart"></canvas>
+        </div>
+    </div>
+
+    <div class="panel stat-panel">
+        <p class="eyebrow">Quick read</p>
+        <h2>Table snapshot</h2>
+        <div class="stat-list">
+            <div class="stat-row"><span>Players tracked</span><strong>{{ leaderboard|length }}</strong></div>
+            <div class="stat-row"><span>Sessions tracked</span><strong>{{ session_count }}</strong></div>
+            <div class="stat-row"><span>Best player</span><strong>{% if leaderboard %}{{ leaderboard[0].player_name }}{% else %}—{% endif %}</strong></div>
+            <div class="stat-row"><span>Worst player</span><strong>{% if leaderboard %}{{ leaderboard[-1].player_name }}{% else %}—{% endif %}</strong></div>
+        </div>
+    </div>
+</section>
+
+<section class="panel">
+    <div class="panel-header">
+        <div>
+            <p class="eyebrow">Standings</p>
+            <h2>All-time leaderboard</h2>
+        </div>
+        <p class="muted-text small">Click any column to sort.</p>
+    </div>
+
+    <div class="table-wrap">
+        <table id="leaderboardTable" class="sortable-table" data-sort-key="net" data-sort-direction="desc">
+            <thead>
+                <tr>
+                    <th><button type="button" class="sort-button" data-sort-key="rank" data-sort-type="number" data-initial-direction="asc">Rank <span class="sort-indicator">↕</span></button></th>
+                    <th><button type="button" class="sort-button" data-sort-key="player" data-sort-type="string" data-initial-direction="asc">Player <span class="sort-indicator">↕</span></button></th>
+                    <th><button type="button" class="sort-button" data-sort-key="buyins" data-sort-type="number" data-initial-direction="desc">Buy-ins <span class="sort-indicator">↕</span></button></th>
+                    <th><button type="button" class="sort-button" data-sort-key="cashouts" data-sort-type="number" data-initial-direction="desc">Cash-outs <span class="sort-indicator">↕</span></button></th>
+                    <th><button type="button" class="sort-button is-active" data-sort-key="net" data-sort-type="number" data-initial-direction="desc">Net <span class="sort-indicator">↓</span></button></th>
+                    <th><button type="button" class="sort-button" data-sort-key="winpct" data-sort-type="number" data-initial-direction="desc">Win % <span class="sort-indicator">↕</span></button></th>
+                    <th><button type="button" class="sort-button" data-sort-key="roi" data-sort-type="number" data-initial-direction="desc">ROI <span class="sort-indicator">↕</span></button></th>
+                    <th><button type="button" class="sort-button" data-sort-key="avgwin" data-sort-type="number" data-initial-direction="desc">Avg Win <span class="sort-indicator">↕</span></button></th>
+                    <th><button type="button" class="sort-button" data-sort-key="avgloss" data-sort-type="number" data-initial-direction="desc">Avg Loss <span class="sort-indicator">↕</span></button></th>
+                    <th><button type="button" class="sort-button" data-sort-key="sessions" data-sort-type="number" data-initial-direction="desc">Sessions <span class="sort-indicator">↕</span></button></th>
+                </tr>
+            </thead>
+            <tbody>
+                {% for player in leaderboard %}
+                <tr data-player-row="true" data-original-rank="{{ loop.index }}">
+                    <td data-sort-value="{{ loop.index }}" data-rank-cell>#{{ loop.index }}</td>
+                    <td data-sort-value="{{ player.player_name|lower }}"><a href="{{ url_for('player_detail', player_name=player.player_name) }}">{{ player.player_name }}</a></td>
+                    <td data-sort-value="{{ player.total_buy_in_cents }}">{{ player.total_buy_in_cents | money }}</td>
+                    <td data-sort-value="{{ player.total_cash_out_cents }}">{{ player.total_cash_out_cents | money }}</td>
+                    <td data-sort-value="{{ player.total_net_cents }}" class="{{ 'positive' if player.total_net_cents > 0 else 'negative' if player.total_net_cents < 0 else 'neutral' }}">{{ player.total_net_cents | money }}</td>
+                    <td data-sort-value="{{ '%.4f'|format(player.win_pct) }}">{{ "%.1f"|format(player.win_pct) }}%</td>
+                    <td data-sort-value="{{ '%.4f'|format(player.roi_pct) }}">{{ "%.1f"|format(player.roi_pct) }}%</td>
+                    <td data-sort-value="{{ player.avg_win_cents }}">{{ player.avg_win_cents | money }}</td>
+                    <td data-sort-value="{{ player.avg_loss_cents }}">{{ player.avg_loss_cents | money }}</td>
+                    <td data-sort-value="{{ player.sessions_played }}">{{ player.sessions_played }}</td>
+                </tr>
+                {% else %}
+                <tr>
+                    <td colspan="10">No data yet. Add the first event from the admin page.</td>
+                </tr>
+                {% endfor %}
+            </tbody>
+        </table>
+    </div>
+</section>
+
+<div class="chart-modal" id="chartModal" aria-hidden="true">
+    <div class="chart-modal-backdrop" data-close-chart-modal></div>
+    <div class="chart-modal-card">
+        <div class="panel-header panel-header-with-actions">
+            <div>
+                <p class="eyebrow">Expanded view</p>
+                <h2>Cumulative profit over time</h2>
+            </div>
+            <div class="panel-actions">
+                <button class="secondary-button" type="button" id="fullscreenLeaderboardChart">Fullscreen</button>
+                <button class="ghost-button" type="button" data-close-chart-modal>Close</button>
+            </div>
+        </div>
+        <div class="chart-modal-frame" id="chartModalFrame">
+            <canvas id="leaderboardChartExpanded"></canvas>
+        </div>
+    </div>
+</div>
+
+<script>
+    const leaderboardChartData = {{ chart_data | tojson }};
+    const rootStyles = getComputedStyle(document.documentElement);
+    const textMuted = rootStyles.getPropertyValue('--text-muted').trim();
+    const lineColor = rootStyles.getPropertyValue('--line').trim();
+
+    function buildLeaderboardChartConfig(chartData) {
+        return {
+            type: 'line',
+            data: chartData,
+            options: {
+                responsive: true,
+                maintainAspectRatio: false,
+                interaction: { mode: 'nearest', intersect: false },
+                plugins: {
+                    legend: {
+                        position: 'bottom',
+                        labels: {
+                            color: textMuted,
+                            usePointStyle: true,
+                            boxWidth: 10,
+                            boxHeight: 10,
+                            padding: 18,
+                        },
+                    },
+                    tooltip: {
+                        callbacks: {
+                            label(context) {
+                                const value = context.parsed.y;
+                                if (value === null || value === undefined) {
+                                    return `${context.dataset.label}: —`;
+                                }
+                                return `${context.dataset.label}: $${Number(value).toFixed(2)}`;
+                            },
+                        },
+                    },
+                },
+                scales: {
+                    x: {
+                        ticks: { color: textMuted, maxRotation: 0 },
+                        grid: { color: lineColor },
+                    },
+                    y: {
+                        ticks: {
+                            color: textMuted,
+                            callback(value) {
+                                return `$${value}`;
+                            },
+                        },
+                        grid: { color: lineColor },
+                    },
+                },
+            },
+        };
+    }
+
+    const leaderboardCtx = document.getElementById('leaderboardChart');
+    let leaderboardChart = null;
+    if (leaderboardCtx && leaderboardChartData.labels.length > 0) {
+        leaderboardChart = new Chart(leaderboardCtx, buildLeaderboardChartConfig(leaderboardChartData));
+    }
+
+    const chartModal = document.getElementById('chartModal');
+    const expandButton = document.getElementById('expandLeaderboardChart');
+    const chartFrame = document.getElementById('leaderboardChartFrame');
+    const fullscreenButton = document.getElementById('fullscreenLeaderboardChart');
+    const modalFrame = document.getElementById('chartModalFrame');
+    const expandedCtx = document.getElementById('leaderboardChartExpanded');
+    let expandedChart = null;
+
+    function openChartModal() {
+        if (!chartModal || !expandedCtx || leaderboardChartData.labels.length === 0) {
+            return;
+        }
+
+        chartModal.classList.add('is-open');
+        chartModal.setAttribute('aria-hidden', 'false');
+        document.body.classList.add('modal-open');
+
+        if (expandedChart) {
+            expandedChart.destroy();
+        }
+        expandedChart = new Chart(expandedCtx, buildLeaderboardChartConfig(leaderboardChartData));
+    }
+
+    function closeChartModal() {
+        if (!chartModal) {
+            return;
+        }
+        chartModal.classList.remove('is-open');
+        chartModal.setAttribute('aria-hidden', 'true');
+        document.body.classList.remove('modal-open');
+        if (expandedChart) {
+            expandedChart.destroy();
+            expandedChart = null;
+        }
+    }
+
+    expandButton?.addEventListener('click', openChartModal);
+    chartFrame?.addEventListener('click', openChartModal);
+    chartFrame?.addEventListener('keydown', (event) => {
+        if (event.key === 'Enter' || event.key === ' ') {
+            event.preventDefault();
+            openChartModal();
+        }
+    });
+
+    chartModal?.querySelectorAll('[data-close-chart-modal]').forEach((element) => {
+        element.addEventListener('click', closeChartModal);
+    });
+
+    document.addEventListener('keydown', (event) => {
+        if (event.key === 'Escape' && chartModal?.classList.contains('is-open')) {
+            closeChartModal();
+        }
+    });
+
+    fullscreenButton?.addEventListener('click', async () => {
+        if (!modalFrame) {
+            return;
+        }
+        if (document.fullscreenElement) {
+            await document.exitFullscreen();
+            return;
+        }
+        if (modalFrame.requestFullscreen) {
+            await modalFrame.requestFullscreen();
+        }
+    });
+
+    const leaderboardTable = document.getElementById('leaderboardTable');
+    const sortButtons = Array.from(document.querySelectorAll('.sort-button'));
+    const columnIndexMap = {
+        rank: 0,
+        player: 1,
+        buyins: 2,
+        cashouts: 3,
+        net: 4,
+        winpct: 5,
+        roi: 6,
+        avgwin: 7,
+        avgloss: 8,
+        sessions: 9,
+    };
+
+    function updateRankCells() {
+        if (!leaderboardTable) {
+            return;
+        }
+        Array.from(leaderboardTable.tBodies[0].querySelectorAll('tr[data-player-row="true"]')).forEach((row, index) => {
+            const rankCell = row.querySelector('[data-rank-cell]');
+            if (rankCell) {
+                rankCell.textContent = `#${index + 1}`;
+            }
+        });
+    }
+
+    function setActiveSortButton(sortKey, direction) {
+        sortButtons.forEach((button) => {
+            const isActive = button.dataset.sortKey === sortKey;
+            button.classList.toggle('is-active', isActive);
+            const indicator = button.querySelector('.sort-indicator');
+            if (indicator) {
+                indicator.textContent = isActive ? (direction === 'asc' ? '↑' : '↓') : '↕';
+            }
+        });
+    }
+
+    function sortLeaderboard(sortKey, sortType, forcedDirection) {
+        if (!leaderboardTable) {
+            return;
+        }
+
+        const tbody = leaderboardTable.tBodies[0];
+        const rows = Array.from(tbody.querySelectorAll('tr[data-player-row="true"]'));
+        const currentKey = leaderboardTable.dataset.sortKey;
+        const currentDirection = leaderboardTable.dataset.sortDirection || 'desc';
+        let direction = forcedDirection;
+
+        if (!direction) {
+            if (currentKey === sortKey) {
+                direction = currentDirection === 'desc' ? 'asc' : 'desc';
+            } else {
+                const trigger = sortButtons.find((button) => button.dataset.sortKey === sortKey);
+                direction = trigger?.dataset.initialDirection || 'desc';
+            }
+        }
+
+        const multiplier = direction === 'asc' ? 1 : -1;
+        const columnIndex = columnIndexMap[sortKey] ?? 0;
+
+        rows.sort((leftRow, rightRow) => {
+            const leftCell = leftRow.children[columnIndex];
+            const rightCell = rightRow.children[columnIndex];
+            const leftValue = leftCell?.dataset.sortValue ?? '';
+            const rightValue = rightCell?.dataset.sortValue ?? '';
+
+            if (sortType === 'number') {
+                const numericResult = (Number(leftValue) - Number(rightValue)) * multiplier;
+                if (numericResult !== 0) {
+                    return numericResult;
+                }
+            } else {
+                const stringResult = leftValue.localeCompare(rightValue) * multiplier;
+                if (stringResult !== 0) {
+                    return stringResult;
+                }
+            }
+
+            return Number(leftRow.dataset.originalRank) - Number(rightRow.dataset.originalRank);
+        });
+
+        rows.forEach((row) => tbody.appendChild(row));
+        leaderboardTable.dataset.sortKey = sortKey;
+        leaderboardTable.dataset.sortDirection = direction;
+        updateRankCells();
+        setActiveSortButton(sortKey, direction);
+    }
+
+    sortButtons.forEach((button) => {
+        button.addEventListener('click', () => {
+            sortLeaderboard(button.dataset.sortKey, button.dataset.sortType);
+        });
+    });
+
+    setActiveSortButton('net', 'desc');
+</script>
+{% endblock %}
diff --git a/templates/player_detail.html b/templates/player_detail.html
new file mode 100644
index 0000000..2dc144e
--- /dev/null
+++ b/templates/player_detail.html
@@ -0,0 +1,141 @@
+{% extends "base.html" %}
+{% block title %}{{ player.player_name }} · Poker Portal{% endblock %}
+{% block content %}
+<section class="hero-card compact">
+    <div>
+        <p class="eyebrow">Player profile</p>
+        <h1>{{ player.player_name }}</h1>
+        <p class="muted-text">A quick read on lifetime performance, hit rate, and session-by-session movement.</p>
+    </div>
+</section>
+
+<section class="grid three-col">
+    <article class="panel stat-card"><span>Total Net</span><strong class="{{ 'positive' if player.total_net_cents > 0 else 'negative' if player.total_net_cents < 0 else 'neutral' }}">{{ player.total_net_cents | money }}</strong></article>
+    <article class="panel stat-card"><span>Win %</span><strong>{{ "%.1f"|format(player.win_pct) }}%</strong></article>
+    <article class="panel stat-card"><span>ROI</span><strong>{{ "%.1f"|format(player.roi_pct) }}%</strong></article>
+    <article class="panel stat-card"><span>Buy-ins</span><strong>{{ player.total_buy_in_cents | money }}</strong></article>
+    <article class="panel stat-card"><span>Cash-outs</span><strong>{{ player.total_cash_out_cents | money }}</strong></article>
+    <article class="panel stat-card"><span>Sessions</span><strong>{{ player.sessions_played }}</strong></article>
+</section>
+
+<section class="grid two-col">
+    <div class="panel chart-panel">
+        <div class="panel-header">
+            <div>
+                <p class="eyebrow">Trend</p>
+                <h2>Cumulative profit</h2>
+            </div>
+        </div>
+        <div class="chart-frame">
+            <canvas id="playerCumulativeChart"></canvas>
+        </div>
+    </div>
+    <div class="panel chart-panel">
+        <div class="panel-header">
+            <div>
+                <p class="eyebrow">Volatility</p>
+                <h2>Session results</h2>
+            </div>
+        </div>
+        <div class="chart-frame">
+            <canvas id="playerSessionChart"></canvas>
+        </div>
+    </div>
+</section>
+
+<section class="panel">
+    <div class="panel-header">
+        <div>
+            <p class="eyebrow">Breakdown</p>
+            <h2>Detailed stats</h2>
+        </div>
+    </div>
+    <div class="table-wrap">
+        <table>
+            <tbody>
+                <tr><th>Winning Sessions</th><td>{{ player.winning_sessions }}</td></tr>
+                <tr><th>Losing Sessions</th><td>{{ player.losing_sessions }}</td></tr>
+                <tr><th>Break-even Sessions</th><td>{{ player.break_even_sessions }}</td></tr>
+                <tr><th>Average Win</th><td>{{ player.avg_win_cents | money }}</td></tr>
+                <tr><th>Average Loss</th><td>{{ player.avg_loss_cents | money }}</td></tr>
+                <tr><th>Biggest Win</th><td>{{ player.biggest_win_cents | money }}</td></tr>
+                <tr><th>Biggest Loss</th><td>{{ player.biggest_loss_cents | money }}</td></tr>
+            </tbody>
+        </table>
+    </div>
+</section>
+
+<script>
+    const playerChartData = {{ chart_data | tojson }};
+    const rootStyles = getComputedStyle(document.documentElement);
+    const textMuted = rootStyles.getPropertyValue('--text-muted').trim();
+    const lineColor = rootStyles.getPropertyValue('--line').trim();
+
+    const sharedScaleOptions = {
+        responsive: true,
+        maintainAspectRatio: false,
+        plugins: {
+            legend: {
+                position: 'bottom',
+                labels: {
+                    color: textMuted,
+                    usePointStyle: true,
+                    boxWidth: 10,
+                    boxHeight: 10,
+                    padding: 18,
+                },
+            },
+        },
+        scales: {
+            x: {
+                ticks: { color: textMuted, maxRotation: 0 },
+                grid: { color: lineColor },
+            },
+            y: {
+                ticks: { color: textMuted },
+                grid: { color: lineColor },
+            },
+        },
+    };
+
+    const cumulativeCtx = document.getElementById('playerCumulativeChart');
+    if (cumulativeCtx) {
+        new Chart(cumulativeCtx, {
+            type: 'line',
+            data: {
+                labels: playerChartData.labels,
+                datasets: [{
+                    label: 'Cumulative Profit',
+                    data: playerChartData.cumulative_values,
+                    borderColor: playerChartData.color,
+                    backgroundColor: playerChartData.color,
+                    borderWidth: 2.5,
+                    pointRadius: 3,
+                    pointHoverRadius: 5,
+                    tension: 0.22,
+                }]
+            },
+            options: sharedScaleOptions,
+        });
+    }
+
+    const sessionCtx = document.getElementById('playerSessionChart');
+    if (sessionCtx) {
+        new Chart(sessionCtx, {
+            type: 'bar',
+            data: {
+                labels: playerChartData.labels,
+                datasets: [{
+                    label: 'Session Net',
+                    data: playerChartData.net_values,
+                    backgroundColor: playerChartData.net_colors,
+                    borderColor: playerChartData.net_colors,
+                    borderRadius: 8,
+                    borderSkipped: false,
+                }]
+            },
+            options: sharedScaleOptions,
+        });
+    }
+</script>
+{% endblock %}
diff --git a/templates/session_detail.html b/templates/session_detail.html
new file mode 100644
index 0000000..a8fbb32
--- /dev/null
+++ b/templates/session_detail.html
@@ -0,0 +1,82 @@
+{% extends "base.html" %}
+{% block title %}{{ session.session_date }} · Poker Portal{% endblock %}
+{% block content %}
+<section class="hero-card compact">
+    <div>
+        <p class="eyebrow">Session detail</p>
+        <h1>{{ session.session_date | pretty_date }}</h1>
+        <p class="muted-text">Current totals are derived from the append-only event log for this date.</p>
+    </div>
+</section>
+
+<section class="grid two-col session-layout">
+    <div class="panel">
+        <div class="panel-header">
+            <div>
+                <p class="eyebrow">Results</p>
+                <h2>Player totals</h2>
+            </div>
+        </div>
+        <div class="table-wrap">
+            <table>
+                <thead>
+                    <tr>
+                        <th>Player</th>
+                        <th>Buy-in</th>
+                        <th>Cash-out</th>
+                        <th>Net</th>
+                        <th>Notes</th>
+                    </tr>
+                </thead>
+                <tbody>
+                    {% for entry in session.entries %}
+                    <tr>
+                        <td><a href="{{ url_for('player_detail', player_name=entry.player_name) }}">{{ entry.player_name }}</a></td>
+                        <td>{{ entry.buy_in_cents | money }}</td>
+                        <td>{{ entry.cash_out_cents | money }}</td>
+                        <td class="{{ 'positive' if entry.net_cents > 0 else 'negative' if entry.net_cents < 0 else '' }}">{{ entry.net_cents | money }}</td>
+                        <td>
+                            {% if entry.notes %}
+                                <ul class="note-list">
+                                    {% for note in entry.notes %}
+                                        <li>{{ note }}</li>
+                                    {% endfor %}
+                                </ul>
+                            {% else %}
+                                —
+                            {% endif %}
+                        </td>
+                    </tr>
+                    {% endfor %}
+                </tbody>
+            </table>
+        </div>
+    </div>
+
+    <div class="panel">
+        <div class="panel-header">
+            <div>
+                <p class="eyebrow">Audit trail</p>
+                <h2>Raw ledger events</h2>
+            </div>
+        </div>
+        <div class="event-feed">
+            {% for event in raw_events | reverse %}
+            <article class="event-card">
+                <div class="event-card-top">
+                    <strong>{{ event.player_name }}</strong>
+                    <span class="pill">{{ event.event_type }}</span>
+                </div>
+                <p class="event-amount">{{ event.amount_cents | money }}</p>
+                {% if event.note %}
+                    <p class="muted-text small">{{ event.note }}</p>
+                {% endif %}
+                <p class="tiny-text">{{ event.created_at }} · by {{ event.actor }}</p>
+            </article>
+            {% else %}
+            <p class="muted-text">No raw events recorded.</p>
+            {% endfor %}
+        </div>
+    </div>
+</section>
+{% endblock %}
diff --git a/templates/sessions.html b/templates/sessions.html
new file mode 100644
index 0000000..e4437bb
--- /dev/null
+++ b/templates/sessions.html
@@ -0,0 +1,48 @@
+{% extends "base.html" %}
+{% block title %}Sessions · Poker Portal{% endblock %}
+{% block content %}
+<section class="hero-card compact">
+    <div>
+        <p class="eyebrow">Session history</p>
+        <h1>Sessions</h1>
+        <p class="muted-text">Browse every recorded game night, inspect the table totals, and drill into each player result.</p>
+    </div>
+</section>
+
+<section class="panel">
+    <div class="panel-header">
+        <div>
+            <p class="eyebrow">Archive</p>
+            <h2>All sessions by date</h2>
+        </div>
+    </div>
+    <div class="table-wrap">
+        <table>
+            <thead>
+                <tr>
+                    <th>Date</th>
+                    <th>Players</th>
+                    <th>Total Buy-ins</th>
+                    <th>Total Cash-outs</th>
+                    <th>Table Net</th>
+                </tr>
+            </thead>
+            <tbody>
+                {% for session in sessions %}
+                <tr>
+                    <td><a href="{{ url_for('session_detail', session_date=session.session_date) }}">{{ session.session_date | pretty_date }}</a></td>
+                    <td>{{ session.entries|length }}</td>
+                    <td>{{ session.total_buy_in_cents | money }}</td>
+                    <td>{{ session.total_cash_out_cents | money }}</td>
+                    <td class="{{ 'positive' if session.total_net_cents > 0 else 'negative' if session.total_net_cents < 0 else '' }}">{{ session.total_net_cents | money }}</td>
+                </tr>
+                {% else %}
+                <tr>
+                    <td colspan="5">No sessions yet.</td>
+                </tr>
+                {% endfor %}
+            </tbody>
+        </table>
+    </div>
+</section>
+{% endblock %}