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

:root {
  --bg:      #090e12;
  --surface: #0e1620;
  --border:  #1e3040;
  --accent:  #2e9e8a;
  --accent2: #e8a030;
  --gold:    #d4af5a;
  --text:    #d8eaf0;
  --muted:   #5a7a88;
  --danger:  #e05252;
  --radius:  14px;
  --glow:    0 0 24px rgba(46,158,138,.2);
}

html { font-size: 16px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Lato', sans-serif;
  font-weight: 300;
  min-height: 100vh;
  display: flex; flex-direction: column; align-items: center;
  padding: 0 1rem 4rem;
  overflow-x: hidden;
}

.bg-layer {
  position: fixed; inset: 0;
  background:
    radial-gradient(ellipse at 20% 30%, rgba(20,80,100,.15) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 70%, rgba(30,60,90,.12) 0%, transparent 60%);
  pointer-events: none; z-index: 0;
}
body > * { position: relative; z-index: 1; }

header { text-align: center; padding: 3rem 1rem 1.5rem; max-width: 700px; width: 100%; }

.map-line { color: var(--accent); font-size: .8rem; letter-spacing: .15rem; opacity: .4; margin: .6rem 0; }

header h1 {
  font-family: 'Cinzel', serif;
  font-size: clamp(1.8rem, 5vw, 2.8rem); font-weight: 700;
  background: linear-gradient(135deg, var(--gold) 0%, var(--accent) 55%, #40c8b0 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  line-height: 1.2; margin: .4rem 0;
}

.subtitle { color: var(--muted); font-size: .95rem; line-height: 1.5; }

main { width: 100%; max-width: 700px; margin-top: 2rem; }

.tabs { display: flex; gap: .5rem; margin-bottom: 1.5rem; }
.tab {
  flex: 1; padding: .75rem 1rem;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--muted);
  font-family: 'Cinzel', serif; font-size: .85rem; cursor: pointer; transition: all .2s;
}
.tab:hover { border-color: var(--accent); color: var(--text); }
.tab.active { border-color: var(--accent); color: var(--accent); background: rgba(46,158,138,.1); box-shadow: var(--glow); }

.tab-content { display: none; }
.tab-content.active { display: block; }

.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 2rem;
  box-shadow: 0 4px 32px rgba(0,0,0,.4);
}
.card h2 { font-family: 'Cinzel', serif; font-size: 1.25rem; font-weight: 600; color: var(--gold); margin-bottom: .35rem; }
.card-desc { color: var(--muted); font-size: .9rem; margin-bottom: 1.75rem; line-height: 1.5; }

.form-row { display: flex; flex-wrap: wrap; gap: 1.5rem; margin-bottom: 1.75rem; }
.form-group { display: flex; flex-direction: column; gap: .6rem; flex: 1; min-width: 160px; margin-bottom: 1.4rem; }

label { font-size: .8rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1rem; color: var(--muted); }
.optional { font-weight: 300; text-transform: none; letter-spacing: 0; font-size: .75rem; opacity: .7; }

.cat-buttons, .count-row { display: flex; flex-wrap: wrap; gap: .45rem; }

.cat-btn, .gen-cat-btn, .count-btn {
  padding: .45rem .9rem;
  background: transparent; border: 1px solid var(--border);
  border-radius: 20px; color: var(--muted);
  font-family: 'Lato', sans-serif; font-size: .85rem; cursor: pointer; transition: all .2s;
  white-space: nowrap;
}
.cat-btn:hover, .gen-cat-btn:hover, .count-btn:hover { border-color: var(--accent); color: var(--text); }
.cat-btn.active, .gen-cat-btn.active, .count-btn.active { border-color: var(--accent); color: var(--accent); background: rgba(46,158,138,.12); }

textarea {
  background: rgba(255,255,255,.03); border: 1px solid var(--border);
  border-radius: 10px; color: var(--text);
  font-family: 'Lato', sans-serif; font-size: .95rem; line-height: 1.6;
  padding: .85rem 1rem; resize: vertical; transition: border-color .2s; width: 100%;
}
textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(46,158,138,.15); }
textarea::placeholder { color: var(--muted); opacity: .6; }

.btn-primary {
  display: block; width: 100%; padding: .9rem 1.5rem;
  background: linear-gradient(135deg, var(--accent), #1a7060);
  border: none; border-radius: 10px; color: #fff;
  font-family: 'Cinzel', serif; font-size: 1rem; font-weight: 600; letter-spacing: .05rem;
  cursor: pointer; transition: all .25s;
  box-shadow: 0 4px 20px rgba(46,158,138,.3);
  margin-top: .5rem;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 28px rgba(46,158,138,.5); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled { opacity: .5; cursor: not-allowed; transform: none; }

.results { margin-top: 1.75rem; }

.name-list { display: flex; flex-direction: column; gap: .6rem; }

.name-card {
  display: flex; align-items: center; gap: 1rem;
  background: rgba(255,255,255,.03); border: 1px solid var(--border);
  border-radius: 10px; padding: .9rem 1.2rem;
  animation: fadeSlide .3s ease both; cursor: pointer;
  transition: border-color .2s, background .2s;
}
.name-card:hover { border-color: var(--accent2); background: rgba(232,160,48,.05); }

@keyframes fadeSlide {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.name-card .name-text { font-family: 'Cinzel', serif; font-size: 1.2rem; font-weight: 600; color: var(--text); flex: 1; }
.name-card .copy-hint { font-size: .75rem; color: var(--muted); opacity: 0; transition: opacity .2s; }
.name-card:hover .copy-hint { opacity: 1; }
.name-card .icon { font-size: 1.1rem; }

.reasoning-box {
  margin-top: 1rem;
  background: rgba(46,158,138,.07); border: 1px solid rgba(46,158,138,.2);
  border-radius: 10px; padding: .9rem 1.1rem;
  font-size: .88rem; color: var(--muted); line-height: 1.6;
  animation: fadeSlide .4s ease .1s both;
}
.reasoning-box > strong { color: var(--accent); font-weight: 700; display: block; margin-bottom: .5rem; }
.reasoning-box p { margin-bottom: .75rem; }
.reasoning-box p:last-child { margin-bottom: 0; }

.spinner {
  display: flex; align-items: center; justify-content: center;
  gap: .75rem; padding: 1.5rem; color: var(--muted); font-size: .9rem;
}
.spinner::before {
  content: ''; width: 20px; height: 20px;
  border: 2px solid var(--border); border-top-color: var(--accent);
  border-radius: 50%; animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.error-msg {
  background: rgba(224,82,82,.1); border: 1px solid rgba(224,82,82,.3);
  border-radius: 10px; padding: .9rem 1.1rem; color: var(--danger); font-size: .9rem;
}

footer { margin-top: 3rem; }

@media (max-width: 500px) {
  .card { padding: 1.25rem; }
  .form-row { flex-direction: column; gap: 0; }
  .tabs { flex-direction: column; }
}

/* Decorative h1 accent diamond */
header h1::before {
  content: '◆';
  display: inline-block;
  margin-right: .5rem;
  background: linear-gradient(135deg, var(--gold), var(--accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  font-size: 70%;
  vertical-align: middle;
}

/* About / GEO section */
.about-section {
  margin-top: 2rem;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.75rem 2rem;
  font-size: .9rem; line-height: 1.75; color: var(--muted);
}
.about-section h2 {
  font-family: 'Cinzel', serif; font-size: 1rem; font-weight: 600;
  color: var(--gold); margin-bottom: .75rem;
}
.about-section p { margin-bottom: .75rem; }
.about-section p:last-of-type { margin-bottom: 1rem; }
.about-section strong { color: var(--text); }
.about-section em { color: var(--accent); font-style: normal; }
.about-section details { margin-top: .5rem; }
.about-section summary {
  cursor: pointer; color: var(--accent); font-size: .85rem;
  font-weight: 700; letter-spacing: .05rem; text-transform: uppercase;
  padding: .5rem 0; list-style: none; outline: none;
}
.about-section summary::-webkit-details-marker { display: none; }
.about-section summary::before { content: '+ '; }
details[open] summary::before { content: '- '; }
.about-section dl { margin-top: .75rem; }
.about-section dt { color: var(--text); font-weight: 700; margin-top: .75rem; }
.about-section dd { margin: .2rem 0 0 1rem; }