/* ==========================================================================
   College in Florence — sophisticated modern theme
   Palette: cool ink + ripe-fruit layer colors (seaborn-inspired):
   blueberry, kiwi, tangerine, grape, with a raspberry accent
   ========================================================================== */

:root {
  --ink: #1d2433;
  --ink-soft: #46506a;
  --stone: #f4f6fa;
  --stone-deep: #e8ecf3;
  --paper: #ffffff;
  --line: #dfe5ee;

  --c-colleges: #4c72b0;      /* blueberry */
  --c-colleges-soft: #e7edf8;
  --c-studyspots: #2f9e60;    /* kiwi */
  --c-studyspots-soft: #e2f4e9;
  --c-eateries: #e8630c;      /* tangerine */
  --c-eateries-soft: #fdeadd;
  --c-nightlife: #8a4fd0;     /* grape */
  --c-nightlife-soft: #f0e8fb;

  --accent: #d63384;          /* raspberry */
  --radius: 14px;
  --shadow: 0 10px 40px rgba(28, 35, 51, 0.14);
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Inter", -apple-system, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body { height: 100%; }

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--stone);
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Top bar ---------- */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 1.4rem;
  background: var(--ink);
  color: var(--stone);
  z-index: 1200;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: inherit;
}

.brand-mark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  background: var(--accent);
  color: #fff;
  border-radius: 8px;
  padding: 0.3rem 0.5rem;
  letter-spacing: 0.02em;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}
.brand-name em { color: var(--accent); font-style: italic; }

.topnav { display: flex; align-items: center; gap: 1.4rem; }

.topnav a {
  color: rgba(246, 243, 238, 0.85);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  padding: 0.35rem 0;
  border-bottom: 2px solid transparent;
  transition: color 0.15s;
}
.topnav a:hover { color: #fff; }
.topnav a.active { color: #fff; border-bottom-color: var(--accent); }

.topnav a.nav-cta {
  background: var(--accent);
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  border-bottom: none;
  font-weight: 600;
}
.topnav a.nav-cta:hover { background: #e2499a; color: #fff; }

.hamburger { display: none; background: none; border: none; color: var(--stone); font-size: 1.5rem; cursor: pointer; }

/* ---------- Layer bar ---------- */

.layer-bar {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.65rem 1.4rem;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  z-index: 1100;
  flex-wrap: wrap;
}

.layer-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--ink-soft);
  background: var(--stone);
  border: 1.5px solid var(--line);
  border-radius: 999px;
  padding: 0.45rem 1rem;
  cursor: pointer;
  transition: all 0.15s;
}
.layer-chip:hover { border-color: var(--ink-soft); }
.layer-chip.active { background: var(--ink); color: #fff; border-color: var(--ink); }
.layer-chip .count { opacity: 0.6; font-weight: 500; font-size: 0.8rem; }

.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.dot-colleges { background: var(--c-colleges); }
.dot-studyspots { background: var(--c-studyspots); }
.dot-eateries { background: var(--c-eateries); }
.dot-nightlife { background: var(--c-nightlife); }
.layer-chip.active .dot { outline: 2px solid rgba(255,255,255,0.5); }

.filter-chip { border-style: dashed; }
.filter-chip.active { background: var(--accent); border-color: var(--accent); border-style: solid; color: #fff; }
.filter-divider { width: 1px; align-self: stretch; background: var(--line); margin: 0 0.3rem; }

.layer-bar-right { margin-left: auto; }

#searchBox {
  font-family: var(--font-body);
  font-size: 0.9rem;
  padding: 0.5rem 1rem;
  border: 1.5px solid var(--line);
  border-radius: 999px;
  background: var(--stone);
  width: 220px;
  outline: none;
  transition: border-color 0.15s, width 0.2s;
}
#searchBox:focus { border-color: var(--c-colleges); background: #fff; width: 260px; }

/* ---------- Map shell ---------- */

.map-shell { position: relative; flex: 1; min-height: 420px; }

#map { position: absolute; inset: 0; background: var(--stone-deep); }

/* markers */
.cif-marker {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  border-radius: 50% 50% 50% 4px;
  transform: rotate(0deg);
  color: #fff;
  font-size: 13px;
  border: 2.5px solid #fff;
  box-shadow: 0 2px 8px rgba(28,35,51,0.35);
}
.cif-marker.m-colleges { background: var(--c-colleges); }
.cif-marker.m-studyspots { background: var(--c-studyspots); }
.cif-marker.m-eateries { background: var(--c-eateries); }
.cif-marker.m-nightlife { background: var(--c-nightlife); }

.cif-cluster {
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: #fff;
  font-weight: 700;
  font-size: 12px;
  border: 3px solid rgba(255,255,255,0.85);
  box-shadow: 0 2px 10px rgba(28,35,51,0.3);
  width: 100% !important;
  height: 100% !important;
}
.cif-cluster.m-colleges { background: var(--c-colleges); }
.cif-cluster.m-studyspots { background: var(--c-studyspots); }
.cif-cluster.m-eateries { background: var(--c-eateries); }
.cif-cluster.m-nightlife { background: var(--c-nightlife); }

.leaflet-popup-content-wrapper {
  border-radius: 12px;
  font-family: var(--font-body);
  box-shadow: var(--shadow);
}
.popup-mini { min-width: 180px; }
.popup-mini h4 { font-family: var(--font-display); font-size: 1.02rem; margin-bottom: 2px; }
.popup-mini .popup-cat { font-size: 0.75rem; color: var(--ink-soft); text-transform: uppercase; letter-spacing: 0.06em; }
.popup-mini .popup-more { display: inline-block; margin-top: 6px; font-size: 0.82rem; font-weight: 600; color: var(--c-colleges); cursor: pointer; text-decoration: underline; }

/* ---------- Detail panel ---------- */

.detail-panel {
  position: absolute;
  top: 16px;
  right: 16px;
  bottom: 16px;
  width: min(400px, calc(100vw - 32px));
  background: var(--paper);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  z-index: 1000;
  transform: translateX(calc(100% + 32px));
  transition: transform 0.28s cubic-bezier(0.2, 0.8, 0.2, 1);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.detail-panel.open { transform: translateX(0); }

.panel-close {
  position: absolute;
  top: 10px; right: 12px;
  background: var(--stone);
  border: none;
  width: 32px; height: 32px;
  border-radius: 50%;
  font-size: 1.2rem;
  cursor: pointer;
  color: var(--ink);
  z-index: 2;
}
.panel-close:hover { background: var(--stone-deep); }

.panel-content { overflow-y: auto; padding: 1.5rem 1.5rem 2rem; }

.panel-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  margin-bottom: 0.8rem;
}
.panel-kicker.k-colleges { background: var(--c-colleges-soft); color: var(--c-colleges); }
.panel-kicker.k-studyspots { background: var(--c-studyspots-soft); color: var(--c-studyspots); }
.panel-kicker.k-eateries { background: var(--c-eateries-soft); color: var(--c-eateries); }
.panel-kicker.k-nightlife { background: var(--c-nightlife-soft); color: var(--c-nightlife); }

.panel-content h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
  line-height: 1.15;
  margin-bottom: 0.35rem;
  padding-right: 1.5rem;
}

.panel-address { font-size: 0.85rem; color: var(--ink-soft); margin-bottom: 1rem; }

.rec-score {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  background: var(--stone);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.8rem 1rem;
  margin-bottom: 1.1rem;
}
.rec-score .score-num {
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-weight: 700;
  line-height: 1;
}
.rec-score .score-meta { font-size: 0.8rem; color: var(--ink-soft); line-height: 1.35; }
.rec-score .score-label { font-weight: 700; color: var(--ink); text-transform: uppercase; font-size: 0.68rem; letter-spacing: 0.08em; }

.panel-desc { font-size: 0.92rem; line-height: 1.55; margin-bottom: 1.1rem; }

.panel-caution {
  background: #fff6e5;
  border: 1px solid #f3ddae;
  border-left: 4px solid #e8a20c;
  border-radius: 10px;
  padding: 0.7rem 0.9rem;
  font-size: 0.85rem;
  line-height: 1.5;
  color: #7a5410;
  margin-bottom: 1.1rem;
}

.panel-section-title {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--ink-soft);
  margin: 1.1rem 0 0.5rem;
}

.tag-row { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.tag {
  font-size: 0.78rem;
  background: var(--stone);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.25rem 0.7rem;
  color: var(--ink-soft);
}

.fact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem 1rem; font-size: 0.85rem; }
.fact-grid .fact b { display: block; font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-soft); margin-bottom: 1px; }

blockquote.review-quote {
  border-left: 3px solid var(--accent);
  padding: 0.4rem 0 0.4rem 0.9rem;
  margin-bottom: 0.7rem;
  font-size: 0.88rem;
  line-height: 1.5;
  font-style: italic;
  color: var(--ink-soft);
}
blockquote.review-quote cite {
  display: block;
  font-style: normal;
  font-size: 0.75rem;
  margin-top: 0.25rem;
  color: var(--ink-soft);
}
blockquote.review-quote cite a { color: var(--c-colleges); }

.panel-links { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.6rem; }
.panel-links a {
  font-size: 0.84rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--c-colleges);
  border: 1.5px solid var(--c-colleges);
  border-radius: 999px;
  padding: 0.4rem 0.9rem;
  transition: all 0.15s;
}
.panel-links a:hover { background: var(--c-colleges); color: #fff; }

.chat-cta-inline {
  display: block;
  margin-top: 1.2rem;
  background: var(--ink);
  color: #fff !important;
  text-align: center;
  text-decoration: none;
  border-radius: 10px;
  padding: 0.7rem;
  font-weight: 600;
  font-size: 0.9rem;
}
.chat-cta-inline:hover { background: #2b3550; }

/* ---------- Search results dropdown ---------- */

.search-results {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: min(380px, 90vw);
  background: var(--paper);
  border-radius: 12px;
  box-shadow: var(--shadow);
  z-index: 1050;
  max-height: 320px;
  overflow-y: auto;
  display: none;
}
.search-results.open { display: block; }
.search-result-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.65rem 1rem;
  cursor: pointer;
  border-bottom: 1px solid var(--line);
  font-size: 0.9rem;
}
.search-result-item:hover { background: var(--stone); }
.search-result-item .sr-cat { margin-left: auto; font-size: 0.72rem; color: var(--ink-soft); }

/* ---------- Footer ---------- */

.site-footer {
  background: var(--ink);
  color: rgba(246,243,238,0.75);
  font-size: 0.8rem;
  padding: 0.8rem 1.4rem;
  line-height: 1.5;
}
.site-footer strong { color: var(--stone); }

/* ---------- Auth & chat pages ---------- */

.page-wrap {
  flex: 1;
  width: 100%;
  max-width: 640px;
  margin: 0 auto;
  padding: 3rem 1.4rem 4rem;
}

.page-wrap h1 {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
}
.page-wrap .lede { font-size: 1.02rem; color: var(--ink-soft); line-height: 1.6; margin-bottom: 2rem; }

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 4px 20px rgba(28,35,51,0.06);
  padding: 1.8rem;
  margin-bottom: 1.2rem;
}

.field { margin-bottom: 1.1rem; }
.field label { display: block; font-size: 0.82rem; font-weight: 600; margin-bottom: 0.35rem; }
.field input, .field select {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 0.7rem 0.9rem;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  background: #fff;
  outline: none;
}
.field input:focus, .field select:focus { border-color: var(--c-colleges); }
.field .hint { font-size: 0.78rem; color: var(--ink-soft); margin-top: 0.3rem; }

.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  background: var(--ink);
  color: #fff;
  border: none;
  border-radius: 999px;
  padding: 0.75rem 1.6rem;
  cursor: pointer;
  transition: background 0.15s;
  text-decoration: none;
}
.btn:hover { background: #2b3550; }
.btn.btn-accent { background: var(--accent); color: #fff; }
.btn.btn-accent:hover { background: #e2499a; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.notice { border-radius: 10px; padding: 0.9rem 1.1rem; font-size: 0.88rem; line-height: 1.5; margin-bottom: 1rem; }
.notice.ok { background: #e5f4e8; color: #1e6b34; border: 1px solid #bfe3c8; }
.notice.err { background: #fbe7e5; color: #a2372c; border: 1px solid #f0c6c1; }
.notice.info { background: var(--c-colleges-soft); color: var(--c-colleges); border: 1px solid #c8d6f5; }

/* chat layout */
.chat-shell {
  flex: 1;
  display: grid;
  grid-template-columns: 250px 1fr;
  min-height: 0;
  background: var(--paper);
}
.chat-rooms {
  border-right: 1px solid var(--line);
  overflow-y: auto;
  background: var(--stone);
  padding: 1rem 0;
}
.chat-rooms h3 {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--ink-soft);
  padding: 0.6rem 1.1rem 0.3rem;
}
.room-item {
  display: block;
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  font-family: var(--font-body);
  font-size: 0.88rem;
  padding: 0.55rem 1.1rem;
  cursor: pointer;
  color: var(--ink-soft);
  border-left: 3px solid transparent;
}
.room-item:hover { background: var(--stone-deep); }
.room-item.active { background: var(--paper); color: var(--ink); font-weight: 600; border-left-color: var(--accent); }

.chat-main { display: flex; flex-direction: column; min-height: 0; }
.chat-header {
  padding: 0.9rem 1.4rem;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.chat-header h2 { font-family: var(--font-display); font-size: 1.2rem; font-weight: 600; }
.chat-header .whoami { font-size: 0.8rem; color: var(--ink-soft); }
.chat-header .whoami button { background:none; border:none; color: var(--c-colleges); cursor:pointer; font-size:0.8rem; text-decoration:underline; }

.chat-messages { flex: 1; overflow-y: auto; padding: 1.2rem 1.4rem; display: flex; flex-direction: column; gap: 0.7rem; }
.msg { max-width: 78%; }
.msg .msg-meta { font-size: 0.72rem; color: var(--ink-soft); margin-bottom: 2px; }
.msg .msg-bubble {
  background: var(--stone);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.55rem 0.9rem;
  font-size: 0.9rem;
  line-height: 1.45;
  word-wrap: break-word;
}
.msg.mine { align-self: flex-end; }
.msg.mine .msg-bubble { background: var(--c-colleges); color: #fff; border-color: var(--c-colleges); }
.msg.mine .msg-meta { text-align: right; }

.chat-input-row { display: flex; gap: 0.6rem; padding: 0.9rem 1.4rem; border-top: 1px solid var(--line); }
.chat-input-row input {
  flex: 1;
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 0.7rem 1rem;
  border: 1.5px solid var(--line);
  border-radius: 999px;
  outline: none;
}
.chat-input-row input:focus { border-color: var(--c-colleges); }

.gate { text-align: center; padding: 3rem 1.4rem; }
.gate .gate-icon { font-size: 2.6rem; margin-bottom: 0.8rem; }

/* ---------- Responsive ---------- */

@media (max-width: 760px) {
  .topnav { display: none; }
  .topnav.open {
    display: flex;
    position: absolute;
    top: 56px; left: 0; right: 0;
    flex-direction: column;
    background: var(--ink);
    padding: 1rem 1.4rem;
    gap: 1rem;
    z-index: 1300;
  }
  .hamburger { display: block; }
  .brand-name { font-size: 1.05rem; }
  .layer-bar { padding: 0.55rem 0.8rem; }
  .layer-bar-right { margin-left: 0; width: 100%; }
  #searchBox, #searchBox:focus { width: 100%; }
  .detail-panel { top: auto; left: 8px; right: 8px; bottom: 8px; width: auto; max-height: 62%; transform: translateY(calc(100% + 16px)); }
  .detail-panel.open { transform: translateY(0); }
  .chat-shell { grid-template-columns: 1fr; grid-template-rows: auto 1fr; }
  .chat-rooms { display: flex; overflow-x: auto; padding: 0.4rem; border-right: none; border-bottom: 1px solid var(--line); }
  .chat-rooms h3 { display: none; }
  .room-item { white-space: nowrap; border-left: none; border-bottom: 3px solid transparent; }
  .room-item.active { border-bottom-color: var(--accent); }
}