:root {
  /* Color Palette - Light Theme (Default) */
  /* Specific Brand Colors from Palette */
  --brand-navy: #011126; /* Midnight Navy - Primary Background */
  --brand-slate: #5E778C; /* Slate Blue - Secondary/Neutral */
  --brand-ocean: #03588C; /* Ocean Blue - Primary Accent */
  --brand-teal: #023859; /* Deep Teal - Secondary Accent */
  --brand-bronze: #733E10; /* Bronze Earth - Warm Accent */
  --brand-dark-grey: #141414; /* Dark Grey Background */
  --brand-dark-mode: #181818; /* Dark Mode Background */
  --brand-light-title: #F7F7F7; /* Light Title */

  /* Mapped Variables */
  --primary-color: var(--brand-ocean);
  --primary-hover: var(--brand-teal);
  --primary-active: #022a42; /* Darker shade of Deep Teal */
  --on-primary: #ffffff;

  --bg-color: #EFF2F9; /* Neumorphic light background */
  --surface-color: #E4EBF1; /* Neumorphic light surface */
  --surface-hover: #e0e7ef;
  --surface-active: #d8e0e9;
  
  --text-color: #5a6578; /* Soft gray, readable on light bg */
  --text-secondary: var(--brand-slate);
  --text-tertiary: #adb5bd;
  
  --border-color: #dee2e6;
  --border-focus: var(--brand-ocean);
  
  --success-color: #28a745;
  --error-color: #dc3545;
  --warning-color: var(--brand-bronze);
  --info-color: #17a2b8;

  /* Toast - Glassmorphism (Light) */
  --toast-bg: rgba(255, 255, 255, 0.6);
  --toast-border: rgba(0, 0, 0, 0.05);
  --toast-title: #1a1a1a;
  --toast-desc: #555555;
  --toast-close: #999;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  
  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;

  /* Typography */
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;

  --font-weight-light: 300;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Radius */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-base: 0.2s ease-in-out;
}

/* Dark Theme Overrides - Neumorphic dark palette */
[data-theme="dark"],
html.dark {
  /* Toast - Glassmorphism (Dark) */
  --toast-bg: rgba(30, 32, 40, 0.7);
  --toast-border: rgba(255, 255, 255, 0.1);
  --toast-title: #ffffff;
  --toast-desc: #a0a0a0;
  --toast-close: #666;

  --primary-color: var(--brand-ocean);
  --primary-hover: var(--brand-teal);
  --primary-active: #022a42;
  --on-primary: #ffffff;

  --bg-color: #1a1f2e; /* Neumorphic dark background */
  --surface-color: #252b3b; /* Neumorphic dark surface */
  --surface-hover: var(--brand-teal);
  --surface-active: #03456e;
  
  --text-color: #e9ecef;
  --text-secondary: var(--brand-slate);
  --text-tertiary: #6c757d;
  
  --border-color: var(--brand-slate);
  --border-focus: var(--brand-ocean);

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
}

/* Editorial Panel - custom scrollbar & glassmorphism */
.editorial-scroll::-webkit-scrollbar {
  width: 6px;
}
.editorial-scroll::-webkit-scrollbar-track {
  background: transparent;
}
.editorial-scroll::-webkit-scrollbar-thumb {
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
}
.editorial-scroll::-webkit-scrollbar-thumb:hover {
  background-color: rgba(255, 255, 255, 0.3);
}

.glass-panel {
  background: rgba(16, 26, 34, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-right: 1px solid rgba(255, 255, 255, 0.05);
}

.glass-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

html:not(.dark) .glass-card {
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.4);
}

/* Light mode glass panel */
html:not(.dark) .glass-panel {
  background: rgba(246, 247, 248, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-right: 1px solid rgba(0, 0, 0, 0.06);
}

@media (max-width: 767px) {
  html:not(.dark) .poi-content-panel.glass-panel {
    border-right: none;
    border-top: 1px solid rgba(0, 0, 0, 0.06);
  }
}

/* System Preference Support */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --primary-color: var(--brand-ocean);
    --primary-hover: var(--brand-teal);
    --primary-active: #022a42;
    --on-primary: #ffffff;

    --bg-color: var(--brand-navy);
    --surface-color: #021a36;
    --surface-hover: var(--brand-teal);
    --surface-active: #03456e;
    
    --text-color: #e9ecef;
    --text-secondary: var(--brand-slate);
    --text-tertiary: #6c757d;
    
    --border-color: var(--brand-slate);
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
  }
}