/* ==========================================================================
   HydroVision AI - Design System & Modern Cyber-Wellness Styling
   Theme: Pastel Neon Sunset Gradient (#ff8ab5 -> #90f0ff) & Midnight Violet
   ========================================================================== */

:root {
  /* Color Palette - Midnight Obsidian & Dark Cosmic Violet */
  --bg-dark: #0a0814;
  --bg-card: rgba(20, 15, 36, 0.78);
  --bg-card-hover: rgba(34, 25, 58, 0.88);
  --bg-surface: #120e24;
  
  --border-glass: rgba(255, 255, 255, 0.09);
  --border-glass-glow: rgba(255, 138, 181, 0.35);
  
  --text-primary: #f8fafc;
  --text-secondary: #a5b4fc;
  --text-muted: #6b7280;
  
  /* Brand & Accent Colors (#ff8ab5 & #90f0ff) */
  --accent-pink: #ff8ab5;
  --accent-cyan: #90f0ff;
  --accent-gradient: linear-gradient(135deg, #ff8ab5 0%, #90f0ff 100%);
  --accent-gradient-h: linear-gradient(90deg, #ff8ab5 0%, #90f0ff 100%);
  
  --drink-color: #ff8ab5;
  --drink-gradient: linear-gradient(135deg, #ff8ab5 0%, #90f0ff 100%);
  --drink-glow: 0 0 25px rgba(255, 138, 181, 0.45);
  
  --nodrink-color: #94a3b8;
  --nodrink-gradient: linear-gradient(135deg, #64748b 0%, #334155 100%);
  
  --emerald-success: #10b981;
  --amber-warning: #f59e0b;
  --rose-danger: #f43f5e;
  
  /* Fonts */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
  
  /* Radii & Shadows */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;
  
  --shadow-subtle: 0 10px 30px -10px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 35px -5px rgba(255, 138, 181, 0.3);
  --shadow-card: 0 20px 45px -15px rgba(0, 0, 0, 0.75);
  
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-dark);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.5;
  position: relative;
}

/* Glowing Background Mesh with Ambient Pink & Cyan Orbs */
.glow-bg-mesh {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 12% 18%, rgba(255, 138, 181, 0.14) 0%, transparent 45%),
    radial-gradient(circle at 88% 28%, rgba(144, 240, 255, 0.13) 0%, transparent 45%),
    radial-gradient(circle at 50% 85%, rgba(192, 132, 252, 0.08) 0%, transparent 50%),
    linear-gradient(180deg, #090712 0%, #110d22 100%);
  z-index: -1;
  pointer-events: none;
}

/* Glassmorphism Panel */
.glass-panel {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: border-color var(--transition-smooth), box-shadow var(--transition-smooth);
}

/* ==========================================================================
   Header Styles
   ========================================================================== */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 8, 20, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-glass);
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0.9rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.brand-logo {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0a0814;
  font-size: 1.35rem;
  box-shadow: 0 0 22px rgba(255, 138, 181, 0.45);
  animation: pulse-glow 3s infinite alternate ease-in-out;
}

.brand-text h1 {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  line-height: 1.1;
  color: #ffffff;
}

.brand-text h1 span {
  background: var(--accent-gradient-h);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-subtitle {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 500;
  letter-spacing: 0.3px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

/* Model Status Badge */
.model-status-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-full);
  background: rgba(20, 15, 36, 0.6);
  border: 1px solid var(--border-glass);
  font-size: 0.8rem;
  font-weight: 500;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--amber-warning);
  box-shadow: 0 0 10px var(--amber-warning);
  animation: blink 1.5s infinite ease-in-out;
}

.model-status-badge.ready .status-dot {
  background: var(--emerald-success);
  box-shadow: 0 0 10px var(--emerald-success);
}

.model-status-badge.error .status-dot {
  background: var(--rose-danger);
  box-shadow: 0 0 10px var(--rose-danger);
}

/* Mode Switch Pills */
.view-mode-pills {
  display: flex;
  background: rgba(20, 15, 36, 0.85);
  border: 1px solid var(--border-glass);
  padding: 3px;
  border-radius: var(--radius-full);
}

.mode-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.9rem;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 600;
  font-family: var(--font-body);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition-fast);
}

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

.mode-btn.active {
  background: var(--accent-gradient);
  color: #0a0814;
  box-shadow: 0 2px 12px rgba(255, 138, 181, 0.35);
}

.icon-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border-glass);
  background: rgba(20, 15, 36, 0.6);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

.icon-btn:hover {
  color: var(--accent-pink);
  border-color: var(--accent-pink);
  transform: translateY(-1px);
}

/* ==========================================================================
   Main Grid Layout
   ========================================================================== */
.main-container {
  max-width: 1400px;
  margin: 1.5rem auto;
  padding: 0 1.5rem 2.5rem;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1.5rem;
  align-items: start;
}

/* ==========================================================================
   Vision Section (Left)
   ========================================================================== */
.vision-section {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.vision-card {
  position: relative;
  overflow: hidden;
  padding: 1rem;
  border: 1px solid var(--border-glass);
}

.vision-card.state-drinking {
  border-color: rgba(255, 138, 181, 0.65);
  box-shadow: 0 0 45px rgba(255, 138, 181, 0.25), 0 0 30px rgba(144, 240, 255, 0.15);
}

.vision-card.state-not-drinking {
  border-color: rgba(148, 163, 184, 0.3);
}

/* Live Floating Status Pill */
.live-status-pill {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  background: rgba(10, 8, 20, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 0.6rem 1rem;
  margin-bottom: 0.85rem;
  transition: var(--transition-smooth);
}

.status-icon-wrap {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

.state-drinking .status-icon-wrap {
  background: var(--accent-gradient);
  color: #0a0814;
  box-shadow: 0 0 15px rgba(255, 138, 181, 0.5);
}

.state-not-drinking .status-icon-wrap {
  background: var(--nodrink-gradient);
  color: #f8fafc;
}

.status-info-wrap {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.status-caption {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  font-weight: 600;
}

.status-name {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
}

.status-confidence-badge {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  border: 1px solid var(--border-glass);
}

.state-drinking .status-confidence-badge {
  background: rgba(255, 138, 181, 0.15);
  color: var(--accent-pink);
  border-color: rgba(255, 138, 181, 0.4);
}

/* Viewport Area */
.viewport-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  background: #06040d;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.webcam-container,
.upload-container {
  width: 100%;
  height: 100%;
  position: relative;
  display: none;
}

.webcam-container.active,
.upload-container.active {
  display: flex;
  align-items: center;
  justify-content: center;
}

.webcam-canvas-holder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.webcam-canvas-holder canvas {
  width: 100% !important;
  height: 100% !important;
  object-fit: cover;
  border-radius: var(--radius-md);
  transition: transform 0.3s ease;
}

.webcam-canvas-holder.flipped canvas {
  transform: scaleX(-1);
}

/* Placeholder for Inactive Webcam */
.webcam-placeholder-ui {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at center, #1b122e 0%, #07050e 100%);
  text-align: center;
  padding: 2rem;
  z-index: 5;
}

.placeholder-icon {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  background: rgba(255, 138, 181, 0.1);
  border: 1px solid rgba(255, 138, 181, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--accent-pink);
  margin-bottom: 1.25rem;
}

.webcam-placeholder-ui h3 {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.webcam-placeholder-ui p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  max-width: 320px;
  margin-bottom: 1.5rem;
}

/* AI Scanner Laser & Corners Overlay */
.ai-scanner-overlay {
  position: absolute;
  inset: 12px;
  pointer-events: none;
  z-index: 10;
  display: none;
}

.webcam-container.running .ai-scanner-overlay {
  display: block;
}

.scanner-laser {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-pink), var(--accent-cyan), transparent);
  box-shadow: 0 0 15px var(--accent-pink);
  opacity: 0.8;
  animation: scan-vertical 3s linear infinite alternate;
}

.corner {
  position: absolute;
  width: 24px;
  height: 24px;
  border-color: var(--accent-pink);
  border-style: solid;
  opacity: 0.85;
}

.corner-tl { top: 0; left: 0; border-width: 2px 0 0 2px; border-top-left-radius: 6px; }
.corner-tr { top: 0; right: 0; border-width: 2px 2px 0 0; border-top-right-radius: 6px; }
.corner-bl { bottom: 0; left: 0; border-width: 0 0 2px 2px; border-bottom-left-radius: 6px; }
.corner-br { bottom: 0; right: 0; border-width: 0 2px 2px 0; border-bottom-right-radius: 6px; }

/* Image Upload Dropzone */
.dropzone {
  width: 100%;
  height: 100%;
  border: 2px dashed rgba(255, 138, 181, 0.25);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background: rgba(20, 15, 36, 0.4);
  transition: var(--transition-fast);
  cursor: pointer;
  overflow: hidden;
}

.dropzone:hover, .dropzone.dragover {
  border-color: var(--accent-pink);
  background: rgba(255, 138, 181, 0.06);
}

.dropzone-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 2rem;
}

.upload-icon-circle {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(255, 138, 181, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: var(--accent-pink);
  margin-bottom: 1rem;
}

.dropzone-content h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.dropzone-content p {
  color: var(--text-secondary);
  font-size: 0.8rem;
  max-width: 300px;
  margin-bottom: 1.25rem;
}

.uploaded-preview-wrap {
  width: 100%;
  height: 100%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #06040d;
}

.uploaded-preview-wrap img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.remove-upload-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(20, 15, 36, 0.85);
  border: 1px solid var(--border-glass);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

.remove-upload-btn:hover {
  background: var(--rose-danger);
}

/* Viewport Loader */
.viewport-loader {
  position: absolute;
  inset: 0;
  background: rgba(10, 8, 20, 0.88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  z-index: 30;
}

.loader-spinner {
  width: 46px;
  height: 46px;
  border: 3px solid rgba(255, 138, 181, 0.15);
  border-top-color: var(--accent-pink);
  border-radius: 50%;
  animation: spin 1s infinite linear;
}

#loaderMessage {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
}

/* Vision Toolbar */
.vision-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1rem;
  gap: 0.75rem;
}

.toolbar-left, .toolbar-right {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

/* Buttons */
.action-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.15rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
  border: 1px solid transparent;
}

.action-btn.primary {
  background: var(--accent-gradient);
  color: #0a0814;
  box-shadow: 0 4px 15px rgba(255, 138, 181, 0.35);
}

.action-btn.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 138, 181, 0.5);
}

.action-btn.primary.running {
  background: linear-gradient(135deg, #f43f5e 0%, #be123c 100%);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(244, 63, 94, 0.35);
}

.action-btn.secondary {
  background: rgba(34, 25, 58, 0.7);
  border-color: var(--border-glass);
  color: var(--text-primary);
}

.action-btn.secondary:hover {
  background: rgba(50, 38, 82, 0.9);
  border-color: rgba(255, 255, 255, 0.2);
}

.primary-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-sm);
  background: var(--accent-gradient);
  color: #0a0814;
  font-weight: 700;
  font-size: 0.9rem;
  font-family: var(--font-body);
  border: none;
  cursor: pointer;
  transition: var(--transition-fast);
  text-decoration: none;
}

.primary-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 138, 181, 0.45);
}

.secondary-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.2rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-glass);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.85rem;
  font-family: var(--font-body);
  cursor: pointer;
  transition: var(--transition-fast);
}

.secondary-btn:hover {
  background: rgba(255, 255, 255, 0.15);
}

.fps-badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.45rem 0.75rem;
  background: rgba(20, 15, 36, 0.8);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
}

.fps-badge span {
  color: var(--accent-cyan);
}

.icon-tool-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: rgba(20, 15, 36, 0.8);
  border: 1px solid var(--border-glass);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

.icon-tool-btn:hover {
  color: var(--accent-pink);
  border-color: var(--accent-pink);
}

.icon-tool-btn.muted {
  color: var(--rose-danger);
}

/* Sustained Streak Bar */
.detection-streak-bar {
  padding: 0.85rem 1.15rem;
}

.streak-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.streak-header span i {
  color: var(--accent-pink);
  margin-right: 0.25rem;
}

.streak-progress-track {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.streak-progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #ff8ab5, #90f0ff);
  border-radius: var(--radius-full);
  transition: width 0.1s linear;
}

/* ==========================================================================
   Dashboard Section (Right)
   ========================================================================== */
.dashboard-section {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.card {
  padding: 1.25rem;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.15rem;
}

.card-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.card-title i {
  color: var(--accent-pink);
  font-size: 1.1rem;
}

.card-title h3 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
}

.live-tag {
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 138, 181, 0.12);
  color: var(--accent-pink);
  border: 1px solid rgba(255, 138, 181, 0.3);
}

.tiny-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  color: var(--text-secondary);
  padding: 0.3rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
}

.tiny-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

/* AI Score Bars */
.probability-bars-list {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.class-score-item {
  background: rgba(20, 15, 36, 0.65);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 0.85rem;
  transition: var(--transition-smooth);
}

.class-score-item.active {
  border-color: rgba(255, 138, 181, 0.45);
  background: rgba(28, 20, 50, 0.9);
  box-shadow: 0 4px 20px -5px rgba(255, 138, 181, 0.2);
}

.class-score-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.65rem;
}

.class-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.class-badge-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.class-badge-icon.drink-icon {
  background: rgba(255, 138, 181, 0.15);
  color: var(--accent-pink);
}

.class-badge-icon.nodrink-icon {
  background: rgba(148, 163, 184, 0.12);
  color: #94a3b8;
}

.class-name-wrap {
  display: flex;
  flex-direction: column;
}

.class-title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: capitalize;
}

.class-desc {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.class-percentage {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
}

.progress-bar-bg {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  border-radius: var(--radius-full);
  transition: width 0.15s ease-out;
}

.progress-bar-fill.drink-fill {
  background: var(--accent-gradient-h);
  box-shadow: 0 0 12px rgba(255, 138, 181, 0.5);
}

.progress-bar-fill.nodrink-fill {
  background: var(--nodrink-gradient);
}

/* Threshold Slider Control */
.threshold-control-wrap {
  margin-top: 1.15rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-glass);
}

.threshold-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.threshold-header label i {
  color: var(--accent-pink);
  margin-right: 0.3rem;
}

.threshold-value {
  color: var(--accent-pink);
  font-weight: 700;
}

input[type="range"] {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 5px;
  outline: none;
  -webkit-appearance: none;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent-pink);
  box-shadow: 0 0 10px var(--accent-pink);
  cursor: pointer;
  transition: transform 0.1s;
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.threshold-hint {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 0.4rem;
}

/* ==========================================================================
   Hydration Tracker Styling
   ========================================================================== */
.hydration-body {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 1.25rem;
  align-items: center;
}

/* Water Bottle Visual */
.water-bottle-visual {
  display: flex;
  justify-content: center;
}

.bottle-frame {
  width: 68px;
  height: 140px;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.bottle-cap {
  width: 26px;
  height: 10px;
  background: linear-gradient(90deg, #475569, #64748b, #475569);
  border-radius: 4px 4px 0 0;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.bottle-inner {
  width: 100%;
  flex: 1;
  background: rgba(20, 15, 36, 0.85);
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px 12px 18px 18px;
  position: relative;
  overflow: hidden;
  box-shadow: inset 0 0 15px rgba(0, 0, 0, 0.5), 0 0 20px rgba(255, 138, 181, 0.15);
}

.water-wave-layer {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(180deg, #ff8ab5 0%, #c084fc 45%, #90f0ff 100%);
  transition: height 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 0 22px rgba(255, 138, 181, 0.6);
}

.wave {
  position: absolute;
  top: -10px;
  left: 0;
  width: 200%;
  height: 15px;
  background-repeat: repeat-x;
  background-size: 50% 100%;
  opacity: 0.6;
}

.wave1 {
  background-image: radial-gradient(circle at 10px -5px, transparent 12px, #ff8ab5 13px);
  animation: wave-move 4s linear infinite;
}

.wave2 {
  top: -8px;
  background-image: radial-gradient(circle at 15px -3px, transparent 12px, #90f0ff 13px);
  animation: wave-move 2.5s linear infinite reverse;
  opacity: 0.4;
}

.bottle-percentage-label {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 800;
  color: #ffffff;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.85);
  pointer-events: none;
  z-index: 5;
}

/* Hydration Stats */
.hydration-stats {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.stat-highlight {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 800;
  background: var(--accent-gradient-h);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
}

.stat-unit {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.stat-glasses-count {
  font-size: 0.82rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.stat-glasses-count span {
  font-weight: 700;
  color: #fff;
}

.hydration-advice {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: #ff8ab5;
  background: rgba(255, 138, 181, 0.08);
  padding: 0.4rem 0.65rem;
  border-radius: var(--radius-sm);
  margin-top: 0.2rem;
}

.manual-adjust-btns {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.adjust-btn {
  flex: 1;
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  font-weight: 700;
  font-family: var(--font-body);
  border: 1px solid var(--border-glass);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  transition: var(--transition-fast);
}

.adjust-btn.plus {
  background: rgba(255, 138, 181, 0.14);
  color: var(--accent-pink);
  border-color: rgba(255, 138, 181, 0.35);
}

.adjust-btn.plus:hover {
  background: rgba(255, 138, 181, 0.28);
  transform: translateY(-1px);
}

.adjust-btn.minus {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
}

.adjust-btn.minus:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

/* ==========================================================================
   Activity Log List
   ========================================================================== */
.log-card {
  max-height: 280px;
  display: flex;
  flex-direction: column;
}

.log-list-container {
  overflow-y: auto;
  max-height: 180px;
  padding-right: 0.3rem;
}

.log-list-container::-webkit-scrollbar {
  width: 4px;
}
.log-list-container::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 4px;
}

.empty-log-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  color: var(--text-muted);
  font-size: 0.82rem;
  text-align: center;
  gap: 0.5rem;
}

.empty-log-state i {
  font-size: 1.5rem;
}

.activity-log-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.log-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  background: rgba(20, 15, 36, 0.65);
  border: 1px solid var(--border-glass);
  font-size: 0.8rem;
  animation: slide-in 0.3s ease-out;
}

.log-item-left {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.log-item-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(255, 138, 181, 0.15);
  color: var(--accent-pink);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
}

.log-item-title {
  font-weight: 600;
  color: #fff;
}

.log-item-meta {
  font-size: 0.72rem;
  color: var(--text-secondary);
}

.log-item-confidence {
  font-weight: 700;
  color: var(--accent-pink);
  font-size: 0.75rem;
}

/* ==========================================================================
   Modals
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(7, 5, 15, 0.88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1.5rem;
  animation: fade-in 0.2s ease-out;
}

.modal-card {
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 1.5rem;
  background: #140f24;
  border: 1px solid rgba(255, 138, 181, 0.2);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.85);
}

.snapshot-modal-card {
  max-width: 640px;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
}

.modal-title {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.modal-title i {
  color: var(--accent-pink);
  font-size: 1.2rem;
}

.modal-title h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
}

.close-modal-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 1.2rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.close-modal-btn:hover {
  color: #fff;
}

.modal-body {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.modal-body h4 {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 1rem 0 0.4rem;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.modal-body h4 i {
  color: var(--accent-pink);
}

.info-list {
  padding-left: 1.2rem;
  margin-bottom: 0.85rem;
}

.info-list li {
  margin-bottom: 0.35rem;
}

.info-list strong {
  color: var(--text-primary);
}

.model-meta-info {
  margin-top: 1rem;
  padding: 0.75rem;
  border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.35);
  font-size: 0.8rem;
}

.model-meta-info a {
  color: var(--accent-cyan);
  text-decoration: none;
}

.modal-footer {
  margin-top: 1.5rem;
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

.snapshot-img-wrap {
  width: 100%;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-glass);
  background: #000;
  display: flex;
  justify-content: center;
}

.snapshot-img-wrap img {
  width: 100%;
  height: auto;
  display: block;
}

/* ==========================================================================
   Toast System
   ========================================================================== */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  z-index: 2000;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.15rem;
  background: rgba(20, 15, 36, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 138, 181, 0.2);
  border-radius: var(--radius-md);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 500;
  box-shadow: var(--shadow-card);
  animation: toast-in 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  transition: opacity 0.3s ease;
}

.toast i {
  font-size: 1.1rem;
}

.toast.success i { color: var(--emerald-success); }
.toast.info i { color: var(--accent-pink); }
.toast.warning i { color: var(--amber-warning); }

/* ==========================================================================
   Keyframes Animations
   ========================================================================== */
@keyframes pulse-glow {
  0% { box-shadow: 0 0 15px rgba(255, 138, 181, 0.3); }
  100% { box-shadow: 0 0 30px rgba(144, 240, 255, 0.5); }
}

@keyframes blink {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes scan-vertical {
  0% { top: 0; }
  100% { top: calc(100% - 2px); }
}

@keyframes wave-move {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

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

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes toast-in {
  from { opacity: 0; transform: translateY(20px) scale(0.9); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
  .main-container {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .header-container {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }
  
  .header-actions {
    justify-content: space-between;
    flex-wrap: wrap;
  }

  .main-container {
    padding: 0 1rem 2rem;
    margin-top: 1rem;
  }

  .hydration-body {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }

  .stat-highlight {
    justify-content: center;
  }

  .vision-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .toolbar-left, .toolbar-right {
    justify-content: space-between;
  }
}