@import url("https://fonts.googleapis.com/css2?family=SF+Pro+Display:wght@400;500;600;700&family=Inter:wght@400;500;600;700&display=swap");

/* Default Theme: White (Light Mode) */
:root, [data-theme="light"] {
  --bg-main: #edf1f6;
  --bg-card: rgba(255, 255, 255, 0.68);
  --bg-card-solid: #ffffff;
  --bg-panel: rgba(255, 255, 255, 0.75);
  --bg-input: rgba(255, 255, 255, 0.55);

  --border-glass: rgba(255, 255, 255, 0.75);
  --border-glass-subtle: rgba(0, 0, 0, 0.08);
  --specular-glow: inset 0 1.5px 2px rgba(255, 255, 255, 0.95), inset 0 -1px 2px rgba(0, 0, 0, 0.04);
  --glass-shadow: 0 20px 50px rgba(15, 23, 42, 0.08);

  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-sub: #334155;

  --btn-primary-bg: #0f172a;
  --btn-primary-text: #ffffff;
  --btn-primary-hover: #1e293b;
  --btn-primary-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.35), 0 8px 24px rgba(15, 23, 42, 0.22);

  --btn-secondary-bg: rgba(255, 255, 255, 0.65);
  --btn-secondary-text: #0f172a;
  --btn-secondary-border: rgba(255, 255, 255, 0.85);
  --btn-secondary-shadow: inset 0 1px 1.5px rgba(255, 255, 255, 0.9), 0 4px 12px rgba(0, 0, 0, 0.04);

  --accent-emerald: #059669;
  --accent-rose: #e11d48;
  --accent-blue: #2563eb;
  --accent-cyan: #0891b2;

  --mac-red: #ff5f56;
  --mac-yellow: #ffbd2e;
  --mac-green: #27c93f;

  --radius-xl: 22px;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 8px;
}

[data-theme="dark"] {
  --bg-main: #080b13;
  --bg-card: rgba(255, 255, 255, 0.05);
  --bg-card-solid: #121826;
  --bg-panel: rgba(18, 26, 43, 0.6);
  --bg-input: rgba(0, 0, 0, 0.35);

  --border-glass: rgba(255, 255, 255, 0.16);
  --border-glass-subtle: rgba(255, 255, 255, 0.1);
  --specular-glow: inset 0 1px 1px rgba(255, 255, 255, 0.35);
  --glass-shadow: 0 30px 80px rgba(0, 0, 0, 0.6);

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-sub: #cbd5e1;

  --btn-primary-bg: #f8fafc;
  --btn-primary-text: #080b13;
  --btn-primary-hover: #ffffff;
  --btn-primary-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.5), 0 8px 24px rgba(255, 255, 255, 0.15);

  --btn-secondary-bg: rgba(255, 255, 255, 0.08);
  --btn-secondary-text: #f8fafc;
  --btn-secondary-border: rgba(255, 255, 255, 0.16);
  --btn-secondary-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.25);

  --accent-emerald: #10b981;
  --accent-rose: #f43f5e;
  --accent-blue: #3b82f6;
  --accent-cyan: #06b6d4;
}

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

body {
  min-height: 100vh;
  color: var(--text-main);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter", sans-serif;
  background-color: var(--bg-main);
  position: relative;
  overflow-x: hidden;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Ambient Liquid Glass Mesh Wallpaper */
body::before {
  content: "";
  position: fixed;
  top: -12%;
  left: -8%;
  width: 65vw;
  height: 65vh;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.2) 0%, rgba(6, 182, 212, 0.15) 45%, transparent 70%);
  filter: blur(95px);
  pointer-events: none;
  animation: liquidFloat1 20s ease-in-out infinite alternate;
  z-index: 0;
}

body::after {
  content: "";
  position: fixed;
  bottom: -15%;
  right: -10%;
  width: 70vw;
  height: 70vh;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(236, 72, 153, 0.16) 0%, rgba(16, 185, 129, 0.14) 50%, transparent 75%);
  filter: blur(105px);
  pointer-events: none;
  animation: liquidFloat2 24s ease-in-out infinite alternate;
  z-index: 0;
}

@keyframes liquidFloat1 {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(90px, 70px) scale(1.18); }
}

@keyframes liquidFloat2 {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-100px, -80px) scale(1.22); }
}

/* Workspace Shell */
.page-shell {
  position: relative;
  z-index: 1;
  max-width: 1240px;
  margin: 0 auto;
  padding: 36px 24px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

/* macOS Window Header & Navbar */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: var(--bg-card);
  backdrop-filter: blur(35px) saturate(210%);
  -webkit-backdrop-filter: blur(35px) saturate(210%);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  box-shadow: var(--specular-glow), var(--glass-shadow);
  transition: all 0.3s ease;
}

.mac-traffic-lights {
  display: flex;
  align-items: center;
  gap: 8px;
}

.mac-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.45);
}

.mac-dot.close { background: var(--mac-red); }
.mac-dot.minimize { background: var(--mac-yellow); }
.mac-dot.expand { background: var(--mac-green); }

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-icon {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--btn-primary-bg);
  color: var(--btn-primary-text);
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 1rem;
  box-shadow: var(--specular-glow);
}

.brand-name {
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  color: var(--text-main);
}

.brand-tag {
  font-size: 0.74rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--btn-secondary-bg);
  color: var(--text-muted);
  border: 1px solid var(--border-glass);
  box-shadow: var(--specular-glow);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  font-size: 0.82rem;
  color: var(--accent-emerald);
  font-weight: 600;
  box-shadow: var(--specular-glow);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 10px var(--accent-emerald);
}

/* Liquid Glass Hero Card */
.hero-card {
  background: var(--bg-card);
  backdrop-filter: blur(38px) saturate(210%);
  -webkit-backdrop-filter: blur(38px) saturate(210%);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-xl);
  box-shadow: var(--specular-glow), var(--glass-shadow);
  padding: 44px;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: center;
  transition: all 0.3s ease;
}

.hero-content h1 {
  font-size: clamp(2.1rem, 3.8vw, 3.2rem);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.03em;
  color: var(--text-main);
}

.hero-lead {
  margin-top: 16px;
  font-size: 1.08rem;
  line-height: 1.6;
  color: var(--text-muted);
}

.doc-chips-title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-top: 24px;
  margin-bottom: 12px;
}

.doc-chips-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.doc-chip {
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--btn-secondary-bg);
  border: 1px solid var(--border-glass);
  font-size: 0.85rem;
  color: var(--text-sub);
  font-weight: 500;
  backdrop-filter: blur(16px);
  box-shadow: var(--specular-glow);
}

.hero-actions {
  margin-top: 32px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* macOS Visual Liquid Glass Panel */
.hero-visual {
  background: var(--bg-panel);
  backdrop-filter: blur(28px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--specular-glow), var(--glass-shadow);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.sample-cases {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sample-btn {
  width: 100%;
  text-align: left;
  background: var(--btn-secondary-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--btn-secondary-border);
  color: var(--btn-secondary-text);
  padding: 11px 16px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--btn-secondary-shadow);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.sample-btn:hover {
  background: var(--btn-primary-bg);
  color: var(--btn-primary-text);
  border-color: transparent;
  transform: translateY(-2px);
  box-shadow: var(--btn-primary-shadow);
}

/* Specular macOS Liquid Glass Buttons */
button {
  font-family: inherit;
  cursor: pointer;
  border: 0;
  border-radius: var(--radius-md);
  padding: 12px 22px;
  font-weight: 600;
  font-size: 0.94rem;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

button:hover {
  transform: translateY(-2px);
}

button:active {
  transform: translateY(0) scale(0.98);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

.btn-primary {
  background-color: var(--btn-primary-bg);
  color: var(--btn-primary-text);
  font-weight: 700;
  box-shadow: var(--btn-primary-shadow);
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.btn-primary:hover {
  background-color: var(--btn-primary-hover);
}

.btn-secondary {
  background-color: var(--btn-secondary-bg);
  backdrop-filter: blur(20px);
  color: var(--btn-secondary-text);
  border: 1px solid var(--btn-secondary-border);
  box-shadow: var(--btn-secondary-shadow);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.9);
}

[data-theme="dark"] .btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.15);
}

/* macOS Modal Inspector Shell */
.overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(25px) saturate(180%);
  -webkit-backdrop-filter: blur(25px) saturate(180%);
  display: grid;
  place-items: center;
  padding: 24px;
}

.overlay.hidden {
  display: none !important;
}

.modal {
  width: min(1100px, 100%);
  max-height: min(850px, calc(100vh - 48px));
  background: var(--bg-card);
  backdrop-filter: blur(40px) saturate(210%);
  -webkit-backdrop-filter: blur(40px) saturate(210%);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-xl);
  box-shadow: var(--specular-glow), var(--glass-shadow);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.modal-header {
  padding: 18px 26px;
  background: rgba(255, 255, 255, 0.12);
  border-bottom: 1px solid var(--border-glass-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h2 {
  font-size: 1.22rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-close {
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: 50%;
  background: var(--btn-secondary-bg);
  color: var(--text-muted);
  border: 1px solid var(--border-glass);
  font-size: 1.1rem;
  box-shadow: var(--specular-glow);
}

.btn-close:hover {
  background: rgba(244, 63, 94, 0.25);
  color: var(--accent-rose);
  border-color: rgba(244, 63, 94, 0.4);
}

.modal-body {
  padding: 26px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  overflow-y: auto;
}

/* macOS Inspector Panels */
.input-panel, .result-panel {
  background: var(--bg-panel);
  backdrop-filter: blur(28px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  box-shadow: var(--specular-glow);
}

.panel-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* macOS Liquid Segmented Control Tabs */
.doc-selector {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 5px;
  background: rgba(0, 0, 0, 0.06);
  padding: 5px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-glass);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] .doc-selector {
  background: rgba(0, 0, 0, 0.3);
}

.doc-tab {
  padding: 7px 4px;
  text-align: center;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 0;
  background: transparent;
  transition: all 0.2s ease;
}

.doc-tab.active {
  background: var(--btn-primary-bg);
  color: var(--btn-primary-text);
  box-shadow: var(--specular-glow), 0 4px 12px rgba(0, 0, 0, 0.15);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-sub);
}

.text-input {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 11px 16px;
  color: var(--text-main);
  font-size: 0.94rem;
  outline: none;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.05);
  transition: border-color 0.2s ease;
}

.text-input:focus {
  border-color: var(--text-main);
}

/* Liquid Glass Dropzone */
.dropzone {
  border: 2px dashed var(--border-glass-subtle);
  border-radius: var(--radius-lg);
  padding: 26px 16px;
  text-align: center;
  background: var(--bg-input);
  backdrop-filter: blur(20px);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 190px;
  box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.03);
  transition: all 0.2s ease;
}

.dropzone:hover, .dropzone.drag-active {
  border-color: var(--text-main);
}

.drop-icon {
  font-size: 1.6rem;
  color: var(--accent-cyan);
}

.drop-title {
  font-weight: 700;
  font-size: 0.96rem;
}

.drop-sub {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.image-preview {
  max-width: 100%;
  max-height: 195px;
  object-fit: contain;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-glass);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  transition: transform 0.3s ease;
}

.status-msg {
  font-size: 0.85rem;
  min-height: 1.3em;
  color: var(--text-muted);
}

.status-msg.error { color: var(--accent-rose); }
.status-msg.success { color: var(--accent-emerald); }

/* Liquid Glass Binary Result Card */
.binary-result-card {
  border-radius: var(--radius-lg);
  padding: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-input);
  border: 1px solid var(--border-glass);
  box-shadow: var(--specular-glow);
}

.binary-result-card.verified {
  border-color: rgba(16, 185, 129, 0.5);
  background: rgba(16, 185, 129, 0.12);
  box-shadow: var(--specular-glow), 0 0 30px rgba(16, 185, 129, 0.15);
}

.binary-result-card.unverified {
  border-color: rgba(244, 63, 94, 0.5);
  background: rgba(244, 63, 94, 0.12);
  box-shadow: var(--specular-glow), 0 0 30px rgba(244, 63, 94, 0.15);
}

.result-badge-pill {
  padding: 8px 20px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 0.92rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.4);
}

.result-badge-pill.verified {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: #ffffff;
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.5), 0 8px 20px rgba(16, 185, 129, 0.35);
}

.result-badge-pill.unverified {
  background: linear-gradient(135deg, #f43f5e 0%, #e11d48 100%);
  color: #ffffff;
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.5), 0 8px 20px rgba(244, 63, 94, 0.35);
}

.result-badge-pill.pending {
  background: var(--btn-secondary-bg);
  color: var(--text-muted);
  border: 1px solid var(--border-glass);
}

/* Diagnostic Checks Rows */
.checks-container {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.check-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 11px 14px;
  background: var(--bg-input);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  color: var(--text-sub);
  box-shadow: var(--specular-glow);
}

.check-icon {
  font-weight: bold;
  flex-shrink: 0;
  margin-top: 1px;
}

.check-icon.pass { color: var(--accent-emerald); }
.check-icon.fail { color: var(--accent-rose); }

.site-footer {
  margin-top: auto;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.86rem;
  padding: 24px 0;
  border-top: 1px solid var(--border-glass);
}

/* Modal Mode Switcher Tabs */
.modal-mode-tabs {
  display: flex;
  gap: 4px;
  padding: 8px 16px;
}

.mode-tab {
  flex: 1;
  padding: 10px 14px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.88rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.mode-tab:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.4);
}

.mode-tab.active {
  color: var(--text-main);
  background: var(--bg-card-solid);
  box-shadow: var(--specular-glow), 0 4px 12px rgba(0, 0, 0, 0.08);
}

/* Multi-Image Gallery Grid */
.multi-image-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 12px;
  margin-top: 10px;
  width: 100%;
}

.multi-image-gallery.hidden {
  display: none;
}

.thumb-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-glass);
  background: var(--bg-card-solid);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  display: flex;
  flex-direction: column;
  height: 140px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.thumb-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.14);
}

.thumb-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 5px 8px;
  background: rgba(15, 23, 42, 0.88);
  color: #ffffff;
  backdrop-filter: blur(8px);
  z-index: 2;
}

.thumb-badge {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #f8fafc;
}

.thumb-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.thumb-btn {
  background: rgba(255, 255, 255, 0.2);
  color: #ffffff;
  border: none;
  border-radius: 4px;
  width: 24px;
  height: 22px;
  font-size: 0.8rem;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: all 0.15s ease;
}

.thumb-btn.rotate-thumb:hover {
  background: var(--accent-blue);
  color: #fff;
}

.thumb-btn.remove-thumb:hover {
  background: var(--accent-rose);
  color: #fff;
}

.thumb-img-container {
  flex: 1;
  width: 100%;
  height: 100px;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.04);
  padding: 4px;
}

.thumb-img-container img {
  max-width: 100%;
  max-height: 95px;
  object-fit: contain;
  border-radius: 4px;
  transition: transform 0.25s ease;
}


/* Training Progress Bar Track */
.progress-bar-container {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.progress-bar-container.hidden {
  display: none;
}

.progress-label-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-main);
}

.progress-bar-track {
  width: 100%;
  height: 10px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.1);
  overflow: hidden;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.15);
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
  border-radius: 999px;
  transition: width 0.3s ease;
  box-shadow: 0 0 12px rgba(99, 102, 241, 0.5);
}

/* Trained Model Status Badge Card */
.trained-model-badge-card {
  padding: 12px 16px;
  background: var(--bg-input);
  backdrop-filter: blur(16px);
  border: 1px dashed var(--accent-cyan);
  border-radius: var(--radius-md);
  box-shadow: var(--specular-glow);
}

@media (max-width: 920px) {
  .hero-card, .modal-body {
    grid-template-columns: 1fr;
  }
}