/* ========================================
   GLOBAL THEME SYSTEM
   CyberTec8 CTF Platform
   ======================================== */

/* Default Dark Theme Variables */
:root {
  --bg-primary: #0a0e14;
  --bg-secondary: #0d1421;
  --bg-tertiary: #111827;
  --bg-card: #111c2f;
  --bg-input: #1a2332;
  
  --text-primary: #e5e7eb;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  
  --border-primary: rgba(255, 255, 255, 0.08);
  --border-secondary: rgba(255, 255, 255, 0.05);
  --border-focus: rgba(34, 197, 94, 0.3);
  
  --accent-green: #22c55e;
  --accent-green-hover: #10b981;
  --accent-green-light: rgba(34, 197, 94, 0.1);
  
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.5);
  
  --overlay: rgba(10, 14, 20, 0.85);
  --backdrop-blur: blur(20px);
}

/* Light Theme Variables - Premium Cyber/SaaS Style */
[data-theme="light"],
.light-theme {
  /* Backgrounds - Clean, layered whites/grays */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --bg-card: #ffffff;
  --bg-input: #f8fafc;
  
  /* Text - High contrast, professional */
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  
  /* Borders - Subtle but defined */
  --border-primary: rgba(15, 23, 42, 0.08);
  --border-secondary: rgba(15, 23, 42, 0.04);
  --border-focus: rgba(34, 197, 94, 0.5);
  
  /* Accent - Sharp Green */
  --accent-green: #16a34a;
  --accent-green-hover: #15803d;
  --accent-green-light: rgba(22, 163, 74, 0.08); /* Softer for light mode */
  
  /* Shadows - Soft, diffused depth */
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.05), 0 2px 4px -1px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.05), 0 4px 6px -2px rgba(15, 23, 42, 0.025);
  
  /* Overlays */
  --overlay: rgba(255, 255, 255, 0.9);
  --backdrop-blur: blur(12px);
  
  /* Gradients & Textures */
  --hero-gradient: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
  --grid-color: rgba(15, 23, 42, 0.03);
}

/* Global Light Theme Enhancements */
[data-theme="light"] body {
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(22, 163, 74, 0.03) 0%, transparent 50%),
    linear-gradient(to bottom, #ffffff, #f8fafc);
  position: relative;
}

/* Subtle Grid Pattern for Light Mode */
[data-theme="light"] body::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: 40px 40px;
  background-image: 
    linear-gradient(to right, var(--grid-color) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-color) 1px, transparent 1px);
  mask-image: linear-gradient(to bottom, black 40%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, black 40%, transparent 100%);
  pointer-events: none;
  z-index: -1;
}

/* Smooth theme transition */
* {
  transition: background-color 0.3s ease, 
              color 0.3s ease, 
              border-color 0.3s ease,
              box-shadow 0.3s ease,
              fill 0.3s ease;
}

/* Prevent transition on page load */
.no-transition * {
  transition: none !important;
}

/* Theme Toggle Button Styles */
.theme-toggle-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-primary);
  width: 38px;
  height: 38px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
  padding: 0;
  position: relative;
}

.theme-toggle-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--accent-green);
  transform: translateY(-1px);
}

.theme-toggle-btn svg {
  width: 18px;
  height: 18px;
  color: var(--text-secondary);
  transition: all 0.3s ease;
  position: absolute;
}

.theme-toggle-btn:hover svg {
  color: var(--accent-green);
}

/* Icon animations */
.theme-icon-moon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

.theme-icon-sun {
  opacity: 0;
  transform: rotate(180deg) scale(0);
}

[data-theme="light"] .theme-icon-moon,
.light-theme .theme-icon-moon {
  opacity: 0;
  transform: rotate(-180deg) scale(0);
}

[data-theme="light"] .theme-icon-sun,
.light-theme .theme-icon-sun {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

/* Global body styles */
body {
  background: var(--bg-primary);
  color: var(--text-primary);
}

/* Common element theme support */
.card,
.panel,
.container-box {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  box-shadow: var(--shadow-sm);
}

input,
textarea,
select {
  background: var(--bg-input);
  border: 1px solid var(--border-primary);
  color: var(--text-primary);
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--border-focus);
  outline: none;
}

a {
  color: var(--text-primary);
}

a:hover {
  color: var(--accent-green);
}

/* Button theming */
.btn-primary {
  background: var(--accent-green);
  color: #020617;
}

.btn-primary:hover {
  background: var(--accent-green-hover);
  color: #020617;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-primary);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--accent-green);
}