require search first in explore

static/css/style.css

@@ -5367,12 +5367,28 @@ select.control { cursor: pointer; }
 }
 .settings-profile__meta { display: flex; flex-direction: column; }
 
+.sr-only {
+  position: absolute;
+  width: 1px;
+  height: 1px;
+  padding: 0;
+  margin: -1px;
+  overflow: hidden;
+  clip: rect(0, 0, 0, 0);
+  white-space: nowrap;
+  border: 0;
+}
+
 /* ================================================================
    EXPLORE PAGE REDESIGN
    ================================================================ */
-.explore-header {
+.explore-hero {
+  max-width: 720px;
   margin-bottom: 28px;
 }
+.explore-header {
+  margin-bottom: 18px;
+}
 .explore-header__eyebrow {
   font: 600 11px var(--font-mono);
   letter-spacing: .1em;
@@ -5381,30 +5397,38 @@ select.control { cursor: pointer; }
   margin: 0 0 10px;
 }
 .explore-header__title {
-  font-size: clamp(22px, 3vw, 30px);
+  font-size: clamp(26px, 4vw, 42px);
   font-weight: 800;
   color: var(--text-strong);
-  letter-spacing: -.025em;
-  margin: 0 0 6px;
+  margin: 0 0 8px;
 }
 .explore-header__sub {
-  font-size: .875rem;
+  max-width: 620px;
+  font-size: .9375rem;
+  line-height: 1.6;
   color: var(--text-muted);
   margin: 0;
 }
 
 .explore-search-row {
   display: flex;
-  gap: 8px;
-  margin-bottom: 28px;
-  max-width: 560px;
+  align-items: center;
+  gap: 10px;
+  max-width: 640px;
+  padding: 8px;
+  background: var(--surface);
+  border: 1px solid var(--border-strong);
+  border-radius: var(--r-lg);
+  box-shadow: var(--shadow-sm);
 }
 .explore-search-row .field-input {
   flex: 1;
-  background: var(--surface);
-  border: 1px solid var(--border-strong);
-  border-radius: var(--r-md);
-  padding: 10px 14px;
+  min-width: 0;
+  height: 42px;
+  background: var(--surface-sunk);
+  border: 1px solid var(--border);
+  border-radius: var(--r-sm);
+  padding: 0 14px;
   font-size: .9375rem;
   color: var(--text);
   transition: border-color .15s, box-shadow .15s;
@@ -5415,6 +5439,30 @@ select.control { cursor: pointer; }
   box-shadow: 0 0 0 3px var(--accent-a22);
 }
 .explore-search-row .field-input::placeholder { color: var(--text-muted); }
+.explore-privacy-note {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  margin-top: 12px;
+  color: var(--muted);
+  font-size: .8125rem;
+}
+.explore-privacy-note__dot {
+  width: 6px;
+  height: 6px;
+  border-radius: 1px;
+  background: var(--accent);
+  opacity: .82;
+  transform: rotate(45deg);
+}
+.explore-results-head {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  margin: 0 0 14px;
+  color: var(--text-muted);
+  font-size: .8125rem;
+}
 
 .explore-cards {
   display: grid;
@@ -5486,6 +5534,41 @@ select.control { cursor: pointer; }
   color: var(--accent);
   transition: gap .15s;
 }
+.explore-empty {
+  max-width: 620px;
+  display: grid;
+  gap: 8px;
+  padding: 22px;
+  border: 1px dashed var(--border-strong);
+  border-radius: var(--r-lg);
+  background: var(--surface-sunk);
+}
+.explore-empty h2 {
+  margin: 0;
+  color: var(--text-strong);
+  font-size: 1rem;
+}
+.explore-empty p {
+  margin: 0;
+  color: var(--muted);
+  line-height: 1.55;
+  font-size: .875rem;
+}
+.explore-empty .btn {
+  justify-self: start;
+  margin-top: 6px;
+}
+
+@media (max-width: 580px) {
+  .explore-search-row {
+    align-items: stretch;
+    flex-direction: column;
+  }
+  .explore-search-row .field-input,
+  .explore-search-row .btn {
+    width: 100%;
+  }
+}
 
 /* ================================================================
    LANDING — stats bar