/* ── Google Fonts loaded in base.html ────────────────────────────────────── */
/* Cinzel Decorative · Noto Serif SC · Share Tech Mono                        */

:root {
  --bg-0:          #050505;
  --bg-1:          #0a0a0a;
  --bg-2:          #141414;
  --bg-card:       rgba(20, 20, 20, 0.4);
  --bg-card-hover: rgba(30, 30, 30, 0.6);

  --crimson:       #8a2be2;  /* Purple Primary */
  --crimson-mid:   #9b51e0;
  --crimson-hi:    #b175ff;
  --gold:          #c4a1ff;  /* Soft Purple/Lavender */
  --gold-hi:       #e0d1ff;

  --text-primary:  #e0e0e0;
  --text-secondary:#a0a0a0;
  --text-muted:    #606060;
  --text-inv:      #050505;

  --border-dim:    #222222;
  --border-mid:    #333333;
  --border-accent: #8a2be2;

  --font-display:  'Inter', sans-serif;
  --font-body:     'Inter', sans-serif;
  --font-mono:     'Share Tech Mono', monospace;

  --radius:        0px;
  --transition:    0.2s ease-in-out;
}

/* ── Reset & Base ─────────────────────────────────────────────────────────── */

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

html { font-size: 16px; scroll-behavior: smooth; }

body {
  background-color: var(--bg-0);
  background-image: linear-gradient(to bottom, rgba(5, 5, 5, 0.88), rgba(10, 10, 10, 0.98)), url('bg.jpeg');
  background-size:  cover;
  background-attachment: fixed;
  background-position: center;
  color:            var(--text-primary);
  font-family:      var(--font-body);
  font-weight:      400;
  line-height:      1.7;
  min-height:       100vh;
  display:          flex;
  flex-direction:   column;
}

a { color: var(--gold); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--gold-hi); }

img { max-width: 100%; height: auto; display: block; }

pre, code { font-family: var(--font-mono); }

/* ── WAF Status Banner ────────────────────────────────────────────────────── */

.waf-banner {
  background-color: var(--crimson);
  border-bottom:    1px solid var(--crimson-hi);
  display:          flex;
  align-items:      center;
  justify-content:  center;
  gap:              2rem;
  padding:          5px 1rem;
  font-family:      var(--font-mono);
  font-size:        0.68rem;
  letter-spacing:   0.12em;
  color:            #e8c0b0;
}

.waf-banner .waf-zh {
  color: #f0d0c0;
  font-family: var(--font-body);
}

/* ── Navbar ───────────────────────────────────────────────────────────────── */

.navbar {
  background-color: var(--bg-1);
  border-bottom:    2px solid var(--border-accent);
  padding:          0 2rem;
  display:          flex;
  align-items:      center;
  justify-content:  space-between;
  height:           60px;
}

.nav-logo {
  font-family:  var(--font-display);
  font-size:    1.35rem;
  color:        var(--gold);
  letter-spacing: 0.08em;
  transition:   color var(--transition);
}
.nav-logo:hover { color: var(--gold-hi); }

.nav-links { display: flex; gap: 0; }

.nav-links a {
  color:         var(--text-secondary);
  font-size:     0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding:       0 1.2rem;
  height:        60px;
  display:       flex;
  align-items:   center;
  border-left:   1px solid var(--border-dim);
  transition:    color var(--transition), background-color var(--transition);
}
.nav-links a:hover {
  color:            var(--gold);
  background-color: var(--bg-card);
}

/* ── Main Content ─────────────────────────────────────────────────────────── */

.main-content { flex: 1; }

/* ── Hero Split Layout (Index) ─────────────────────────────────────────────────────────── */

.hero-split {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 4rem 2rem;
  border-bottom: 1px solid var(--border-dim);
  max-width: 1200px;
  margin: 0 auto;
}

.hero-content {
  flex: 1;
}

.hero-image-wrapper {
  flex: 1;
  max-width: 450px;
  border-left: 2px solid var(--crimson);
  padding-left: 2rem;
}

.hero-image-right {
  width: 100%;
  height: auto;
  filter: brightness(0.6) grayscale(0.5);
  display: block;
}

.hero-title {
  font-family:   var(--font-display);
  font-size:     clamp(2rem, 5vw, 4rem);
  color:         var(--text-primary);
  letter-spacing: 0.1em;
  line-height:   1.1;
  margin-bottom: 1rem;
}

.hero-sub-zh {
  font-size:     1.1rem;
  color:         var(--text-secondary);
  margin-bottom: 0.25rem;
  font-weight:   300;
}

.hero-tagline {
  font-family:   var(--font-mono);
  font-size:     0.85rem;
  color:         var(--crimson);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-top:    1.5rem;
}

/* ── Section Container ────────────────────────────────────────────────────── */

.container {
  max-width:  1000px;
  margin:     0 auto;
  padding:    3rem 2rem;
}

.section-header {
  border-left:    3px solid var(--crimson);
  padding-left:   1rem;
  margin-bottom:  2rem;
}

.section-title {
  font-family:    var(--font-display);
  font-size:      1.1rem;
  color:          var(--gold);
  letter-spacing: 0.1em;
}

.section-title-zh {
  font-size:   0.85rem;
  color:       var(--text-muted);
  margin-top:  0.15rem;
}

/* ── Cards ────────────────────────────────────────────────────────────────── */

.card {
  background-color: var(--bg-card);
  border:           1px solid var(--border-dim);
  border-radius:    var(--radius);
  padding:          1.75rem;
  margin-bottom:    1.5rem;
  backdrop-filter:  blur(4px);
}

.card-title {
  font-family:    var(--font-display);
  font-size:      0.85rem;
  color:          var(--text-primary);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom:  1rem;
  border-bottom:  1px solid var(--border-dim);
  padding-bottom: 0.5rem;
}

/* ── Upload Form ──────────────────────────────────────────────────────────── */

.upload-zone {
  border:           2px dashed var(--border-accent);
  border-radius:    var(--radius);
  padding:          3rem 2rem;
  text-align:       center;
  cursor:           pointer;
  transition:       border-color var(--transition), background-color var(--transition);
  margin-bottom:    1.5rem;
  background-color: var(--bg-1);
}

.upload-zone:hover,
.upload-zone.dragover {
  border-color:     var(--crimson);
  background-color: var(--bg-card);
}

.upload-zone input[type="file"] {
  display: none;
}

.upload-label {
  cursor: pointer;
  display: block;
}

.upload-icon-img {
  width:         80px;
  height:        80px;
  object-fit:    cover;
  margin:        0 auto 1.2rem;
  border:        1px solid var(--border-accent);
  border-radius: var(--radius);
  filter:        brightness(0.7) saturate(0.5);
}

.upload-primary-text {
  font-family:    var(--font-display);
  font-size:      1rem;
  color:          var(--gold);
  letter-spacing: 0.08em;
  margin-bottom:  0.5rem;
}

.upload-secondary-text {
  font-size:  0.8rem;
  color:      var(--text-muted);
  font-family: var(--font-mono);
}

.upload-filename {
  margin-top:  1rem;
  font-family: var(--font-mono);
  font-size:   0.85rem;
  color:       var(--text-secondary);
}

.btn {
  display:          inline-block;
  padding:          0.7rem 2rem;
  font-family:      var(--font-display);
  font-size:        0.85rem;
  letter-spacing:   0.12em;
  text-transform:   uppercase;
  border:           1px solid;
  border-radius:    var(--radius);
  cursor:           pointer;
  transition:       background-color var(--transition), color var(--transition), border-color var(--transition);
}

.btn-primary {
  background-color: var(--crimson);
  color:            #f0c8b8;
  border-color:     var(--crimson-hi);
}
.btn-primary:hover {
  background-color: var(--crimson-hi);
  color:            #fff0e8;
}
.btn-primary:disabled {
  background-color: var(--bg-2);
  color:            var(--text-muted);
  border-color:     var(--border-dim);
  cursor:           not-allowed;
}

.btn-outline {
  background-color: transparent;
  color:            var(--gold);
  border-color:     var(--gold);
}
.btn-outline:hover {
  background-color: var(--gold);
  color:            var(--text-inv);
}

/* ── Progress / Status ────────────────────────────────────────────────────── */

.status-bar {
  display:          flex;
  align-items:      center;
  gap:              1rem;
  padding:          1rem 1.2rem;
  background-color: var(--bg-1);
  border:           1px solid var(--border-mid);
  border-radius:    var(--radius);
  margin-top:       1rem;
  font-family:      var(--font-mono);
  font-size:        0.82rem;
  color:            var(--text-secondary);
}

.status-dot {
  width:  8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--gold);
  flex-shrink: 0;
}
.status-dot.active { background-color: var(--crimson-hi); }
.status-dot.success { background-color: #3a6a3a; }

/* ── Tables ───────────────────────────────────────────────────────────────── */

.data-table {
  width:           100%;
  border-collapse: collapse;
  font-size:       0.85rem;
  font-family:     var(--font-mono);
}

.data-table th {
  text-align:       left;
  padding:          0.5rem 0.75rem;
  background-color: var(--bg-1);
  color:            var(--gold);
  font-size:        0.75rem;
  letter-spacing:   0.1em;
  text-transform:   uppercase;
  border-bottom:    2px solid var(--border-accent);
  font-family:      var(--font-display);
  font-weight:      400;
}

.data-table td {
  padding:      0.5rem 0.75rem;
  border-bottom: 1px solid var(--border-dim);
  color:        var(--text-primary);
  word-break:   break-all;
}

.data-table tr:hover td { background-color: var(--bg-card-hover); }

.data-table .key-col {
  color:       var(--text-secondary);
  width:       160px;
  white-space: nowrap;
}

.data-table .val-highlight { color: var(--crimson-hi); }

/* ── Object Detection Grid ────────────────────────────────────────────────── */

.detection-grid {
  display:               grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap:                   1rem;
  margin-top:            1rem;
}

.detection-item {
  background-color: var(--bg-1);
  border:           1px solid var(--border-mid);
  border-left:      3px solid var(--crimson);
  padding:          0.8rem;
  border-radius:    var(--radius);
}

.det-label-zh {
  font-size:    1.1rem;
  color:        var(--gold);
  font-weight:  700;
  display:      block;
}

.det-label-en {
  font-size:    0.75rem;
  color:        var(--text-muted);
  font-family:  var(--font-mono);
  display:      block;
  margin-top:   0.15rem;
}

.det-confidence {
  font-family:   var(--font-mono);
  font-size:     0.8rem;
  color:         var(--text-secondary);
  margin-top:    0.4rem;
  display:       block;
}

.confidence-bar {
  height:           4px;
  background-color: var(--border-dim);
  border-radius:    2px;
  margin-top:       0.3rem;
  overflow:         hidden;
}

.confidence-fill {
  height:           100%;
  background-color: var(--crimson);
  border-radius:    2px;
  transition:       width 0.5s ease;
}

/* ── Source Code Display ──────────────────────────────────────────────────── */

.source-tabs {
  display:   flex;
  border-bottom: 2px solid var(--border-accent);
  margin-bottom: 0;
}

.tab-btn {
  background:    none;
  border:        none;
  border-bottom: 3px solid transparent;
  padding:       0.6rem 1.2rem;
  cursor:        pointer;
  font-family:   var(--font-mono);
  font-size:     0.8rem;
  color:         var(--text-muted);
  letter-spacing: 0.05em;
  transition:    color var(--transition), border-color var(--transition);
  margin-bottom: -2px;
}
.tab-btn.active {
  color:         var(--gold);
  border-color:  var(--gold);
}
.tab-btn:hover { color: var(--text-primary); }

.source-panel {
  display:       none;
  background:    #0a0808;
  border:        1px solid var(--border-mid);
  border-top:    none;
  overflow:      auto;
  max-height:    70vh;
}
.source-panel.active { display: block; }

.source-panel pre {
  margin:  0;
  padding: 1.5rem;
  font-size: 0.82rem;
  line-height: 1.55;
}

/* ── Vault Page ───────────────────────────────────────────────────────────── */

.vault-header-img {
  width:         100%;
  height:        200px;
  object-fit:    cover;
  object-position: center;
  filter:        brightness(0.25) saturate(0.4);
  display:       block;
}

.vault-empty {
  text-align:  center;
  padding:     4rem 2rem;
  color:       var(--text-muted);
  font-family: var(--font-mono);
  font-size:   0.85rem;
}

.vault-list { list-style: none; }
.vault-list li {
  display:          flex;
  align-items:      center;
  justify-content:  space-between;
  padding:          0.7rem 1rem;
  border-bottom:    1px solid var(--border-dim);
  transition:       background-color var(--transition);
}
.vault-list li:hover { background-color: var(--bg-card-hover); }

.vault-filename {
  font-family: var(--font-mono);
  font-size:   0.88rem;
  color:       var(--gold);
}
.vault-size {
  font-family: var(--font-mono);
  font-size:   0.75rem;
  color:       var(--text-muted);
}

/* ── About Page ───────────────────────────────────────────────────────────── */

.about-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border-dim);
}

.about-img-full {
  width:         100%;
  max-height:    380px;
  object-fit:    cover;
  object-position: center;
  filter:        brightness(0.35) grayscale(0.5);
  display:       block;
}

.about-hero-overlay {
  position:      absolute;
  inset:         0;
  display:       flex;
  flex-direction: column;
  align-items:   center;
  justify-content: center;
  text-align:    center;
  padding:       2rem;
  background:    linear-gradient(to bottom, rgba(5,5,5,0.3) 0%, rgba(5,5,5,0.7) 100%);
}

.about-hero-title {
  font-family:   var(--font-display);
  font-size:     clamp(1.5rem, 4vw, 2.5rem);
  color:         var(--text-primary);
  letter-spacing: 0.15em;
  margin-bottom: 0.5rem;
}

.about-hero-zh {
  font-size:     1rem;
  color:         var(--text-secondary);
  font-weight:   300;
}

.lore-block {
  border-left:    3px solid var(--gold);
  padding:        1rem 1.5rem;
  margin:         1.5rem 0;
  background:     var(--bg-card);
  font-style:     italic;
  color:          var(--text-secondary);
  font-size:      0.93rem;
}

.lore-block cite {
  display:     block;
  margin-top:  0.5rem;
  font-style:  normal;
  font-family: var(--font-mono);
  font-size:   0.75rem;
  color:       var(--text-muted);
}

/* ── Alert / Notice Blocks ────────────────────────────────────────────────── */

.notice {
  padding:       0.8rem 1rem;
  border-radius: var(--radius);
  font-family:   var(--font-mono);
  font-size:     0.82rem;
  margin:        1rem 0;
  border-left:   3px solid;
}
.notice-info   { background: #0d1020; border-color: #2050a0; color: #8ab0e0; }
.notice-warn   { background: #1a1000; border-color: var(--gold); color: var(--gold-hi); }
.notice-danger { background: #1a0000; border-color: var(--crimson-hi); color: #f09080; }

/* ── Response JSON Display ────────────────────────────────────────────────── */

.json-output {
  background:  #080606;
  border:      1px solid var(--border-mid);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius);
  padding:     1.2rem;
  font-family: var(--font-mono);
  font-size:   0.82rem;
  line-height: 1.5;
  color:       var(--text-primary);
  overflow-x:  auto;
  white-space: pre-wrap;
  word-break:  break-all;
}

.json-key   { color: var(--gold); }
.json-str   { color: #a0d8a0; }
.json-num   { color: #80c0f8; }
.json-bool  { color: var(--crimson-hi); }
.json-null  { color: var(--text-muted); }

/* ── Footer ───────────────────────────────────────────────────────────────── */

.footer {
  background-color: var(--bg-1);
  border-top:       2px solid var(--border-accent);
  text-align:       center;
  padding:          1.5rem 2rem;
}

.footer-zh {
  font-size:    0.9rem;
  color:        var(--text-muted);
  margin-bottom: 0.2rem;
}

.footer-en {
  font-family: var(--font-mono);
  font-size:   0.72rem;
  color:       var(--text-muted);
  letter-spacing: 0.08em;
}

/* ── 404 Page ─────────────────────────────────────────────────────────────── */

.error-page {
  display:         flex;
  flex-direction:  column;
  align-items:     center;
  justify-content: center;
  padding:         6rem 2rem;
  text-align:      center;
}

.error-code {
  font-family:   var(--font-display);
  font-size:     5rem;
  color:         var(--border-mid);
  line-height:   1;
}

.error-msg {
  font-family:  var(--font-mono);
  color:        var(--text-muted);
  margin-top:   1rem;
  font-size:    0.9rem;
}

/* ── Responsive ───────────────────────────────────────────────────────────── */

@media (max-width: 640px) {
  .navbar { padding: 0 1rem; }
  .nav-links a { padding: 0 0.7rem; font-size: 0.7rem; }
  .container { padding: 2rem 1rem; }
  .hero-image { height: 280px; }
  .detection-grid { grid-template-columns: 1fr 1fr; }
}