/* =========================================
   DIJEXA - Premium Design System v2.0
   World-Class Digital Agency Framework
   ========================================= */

/* =========================================
   1. CUSTOM PROPERTIES & DESIGN TOKENS
   ========================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
  /* ---- Color System (Dark Mode - Default) ---- */
  --color-primary: #C8102E;
  --color-primary-light: #FF1744;
  --color-primary-dark: #9B0D23;
  --color-secondary: #6C63FF;
  --color-secondary-light: #8B83FF;
  --color-secondary-dark: #4A42DB;
  --color-accent: #00D4FF;
  --color-accent-light: #33DDFF;
  --color-accent-dark: #00A8CC;

  /* Neutrals */
  --color-neutral-50: #f8f9fc;
  --color-neutral-100: #f0f1f5;
  --color-neutral-200: #e2e4eb;
  --color-neutral-300: #c8ccd6;
  --color-neutral-400: #9ca3af;
  --color-neutral-500: #6b7280;
  --color-neutral-600: #4b5563;
  --color-neutral-700: #374151;
  --color-neutral-800: #1f2937;
  --color-neutral-900: #111827;

  /* Semantic Colors */
  --color-success: #10B981;
  --color-success-light: rgba(16, 185, 129, 0.15);
  --color-warning: #F59E0B;
  --color-warning-light: rgba(245, 158, 11, 0.15);
  --color-error: #EF4444;
  --color-error-light: rgba(239, 68, 68, 0.15);
  --color-info: #3B82F6;
  --color-info-light: rgba(59, 130, 246, 0.15);

  /* ---- Dark Theme (Default) ---- */
  --bg-primary: #07071a;
  --bg-secondary: #0d0d24;
  --bg-tertiary: #12122e;
  --bg-card: rgba(255, 255, 255, 0.04);
  --bg-card-hover: rgba(255, 255, 255, 0.08);
  --bg-elevated: rgba(255, 255, 255, 0.06);
  --bg-overlay: rgba(7, 7, 26, 0.85);

  --text-primary: #f0f0ff;
  --text-secondary: #c8ccd6;
  --text-muted: #6b7280;
  --text-light: #9ca3af;
  --text-inverse: #07071a;

  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.16);
  --border-focus: var(--color-primary);
  --border-accent: rgba(200, 16, 46, 0.3);

  /* Glass Effects */
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-blur: blur(20px);

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #C8102E 0%, #FF1744 100%);
  --gradient-secondary: linear-gradient(135deg, #6C63FF 0%, #8B83FF 100%);
  --gradient-accent: linear-gradient(135deg, #00D4FF 0%, #6C63FF 100%);
  --gradient-mesh: linear-gradient(135deg, rgba(200, 16, 46, 0.1) 0%, rgba(108, 99, 255, 0.1) 50%, rgba(0, 212, 255, 0.1) 100%);
  --gradient-bg: linear-gradient(135deg, rgba(200, 16, 46, 0.1) 0%, rgba(255, 23, 68, 0.1) 100%);
  --gradient-dark: linear-gradient(135deg, #07071a 0%, #0d0d24 50%, #12122e 100%);
  --gradient-glow: radial-gradient(ellipse at center, rgba(200, 16, 46, 0.15) 0%, transparent 70%);
  --gradient-aurora: linear-gradient(135deg, rgba(200, 16, 46, 0.08) 0%, rgba(108, 99, 255, 0.08) 33%, rgba(0, 212, 255, 0.08) 66%, rgba(200, 16, 46, 0.08) 100%);

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.6);
  --shadow-2xl: 0 25px 60px rgba(0, 0, 0, 0.7);
  --shadow-glow: 0 0 30px rgba(200, 16, 46, 0.4);
  --shadow-glow-lg: 0 0 60px rgba(200, 16, 46, 0.3);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-card-hover: 0 12px 40px rgba(0, 0, 0, 0.5);

  /* ---- Typography ---- */
  --font-display: 'Space Grotesk', 'Poppins', sans-serif;
  --font-body: 'Inter', 'Poppins', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Font Sizes - Fluid Typography */
  --fs-xs: clamp(0.7rem, 0.65rem + 0.25vw, 0.78rem);
  --fs-sm: clamp(0.8rem, 0.75rem + 0.25vw, 0.875rem);
  --fs-base: clamp(0.875rem, 0.83rem + 0.25vw, 1rem);
  --fs-md: clamp(1rem, 0.92rem + 0.4vw, 1.125rem);
  --fs-lg: clamp(1.1rem, 1rem + 0.5vw, 1.25rem);
  --fs-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --fs-2xl: clamp(1.5rem, 1.2rem + 1.5vw, 2rem);
  --fs-3xl: clamp(1.8rem, 1.4rem + 2vw, 2.5rem);
  --fs-4xl: clamp(2rem, 1.5rem + 2.5vw, 3rem);
  --fs-5xl: clamp(2.5rem, 1.8rem + 3.5vw, 4rem);
  --fs-6xl: clamp(3rem, 2rem + 5vw, 5rem);

  /* Font Weights */
  --fw-light: 300;
  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;
  --fw-extrabold: 800;
  --fw-black: 900;

  /* Line Heights */
  --lh-tight: 1.1;
  --lh-snug: 1.25;
  --lh-normal: 1.5;
  --lh-relaxed: 1.7;
  --lh-loose: 1.9;

  /* Letter Spacing */
  --ls-tighter: -0.05em;
  --ls-tight: -0.025em;
  --ls-normal: 0;
  --ls-wide: 0.025em;
  --ls-wider: 0.05em;
  --ls-widest: 0.1em;

  /* ---- Spacing (8px Grid) ---- */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-7: 28px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-14: 56px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;
  --space-32: 128px;

  /* ---- Border Radius ---- */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* ---- Transitions ---- */
  --ease-out: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.6, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-bounce: cubic-bezier(0.68, -0.55, 0.27, 1.55);

  --duration-fast: 0.15s;
  --duration-normal: 0.3s;
  --duration-slow: 0.5s;
  --duration-slower: 0.8s;

  --transition-fast: all 0.15s var(--ease-out);
  --transition-normal: all 0.3s var(--ease-out);
  --transition-slow: all 0.5s var(--ease-out);
  --transition-colors: color 0.3s var(--ease-out), background-color 0.3s var(--ease-out), border-color 0.3s var(--ease-out);

  /* ---- Z-Index Scale ---- */
  --z-negative: -1;
  --z-base: 0;
  --z-above: 1;
  --z-dropdown: 100;
  --z-sticky: 500;
  --z-overlay: 900;
  --z-modal: 1000;
  --z-popover: 1100;
  --z-tooltip: 1200;
  --z-cursor: 9999;

  /* ---- Layout ---- */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1440px;
  --content-width: 1280px;

  /* Back-compat variables */
  --accent: var(--color-primary);
  --accent2: var(--color-primary-light);
  --gradient: var(--gradient-primary);
  --text: var(--text-primary);
  --border: var(--border-color);
  --glass: var(--glass-bg);
  --shadow: var(--shadow-xl);
  --radius: var(--radius-lg);
  --font: var(--font-body);
  --transition: var(--transition-normal);
}

/* =========================================
   2. LIGHT MODE THEME
   ========================================= */

[data-theme="light"] {
  --bg-primary: #f8f9fc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f0f1f5;
  --bg-card: rgba(255, 255, 255, 0.9);
  --bg-card-hover: rgba(255, 255, 255, 1);
  --bg-elevated: rgba(255, 255, 255, 0.95);
  --bg-overlay: rgba(248, 249, 252, 0.9);

  --text-primary: #111827;
  --text-secondary: #374151;
  --text-muted: #6b7280;
  --text-light: #9ca3af;
  --text-inverse: #f0f0ff;

  --border-color: rgba(0, 0, 0, 0.08);
  --border-hover: rgba(0, 0, 0, 0.16);
  --border-accent: rgba(200, 16, 46, 0.2);

  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(0, 0, 0, 0.08);

  --gradient-bg: linear-gradient(135deg, rgba(200, 16, 46, 0.06) 0%, rgba(255, 23, 68, 0.06) 100%);
  --gradient-mesh: linear-gradient(135deg, rgba(200, 16, 46, 0.05) 0%, rgba(108, 99, 255, 0.05) 50%, rgba(0, 212, 255, 0.05) 100%);
  --gradient-aurora: linear-gradient(135deg, rgba(200, 16, 46, 0.04) 0%, rgba(108, 99, 255, 0.04) 33%, rgba(0, 212, 255, 0.04) 66%, rgba(200, 16, 46, 0.04) 100%);

  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
  --shadow-2xl: 0 25px 60px rgba(0, 0, 0, 0.15);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.06);
  --shadow-card-hover: 0 12px 40px rgba(0, 0, 0, 0.12);
  --shadow-glow: 0 0 30px rgba(200, 16, 46, 0.2);

  /* Back-compat */
  --text: var(--text-primary);
  --border: var(--border-color);
}

/* =========================================
   3. TYPOGRAPHY SYSTEM
   ========================================= */

/* Heading Styles */
h1, .h1 {
  font-family: var(--font-display);
  font-size: var(--fs-5xl);
  font-weight: var(--fw-black);
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-tighter);
  color: var(--text-primary);
}

h2, .h2 {
  font-family: var(--font-display);
  font-size: var(--fs-4xl);
  font-weight: var(--fw-extrabold);
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-tight);
  color: var(--text-primary);
}

h3, .h3 {
  font-family: var(--font-display);
  font-size: var(--fs-2xl);
  font-weight: var(--fw-bold);
  line-height: var(--lh-snug);
  letter-spacing: var(--ls-tight);
  color: var(--text-primary);
}

h4, .h4 {
  font-family: var(--font-display);
  font-size: var(--fs-xl);
  font-weight: var(--fw-bold);
  line-height: var(--lh-snug);
  color: var(--text-primary);
}

h5, .h5 {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  line-height: var(--lh-normal);
  color: var(--text-primary);
}

h6, .h6 {
  font-family: var(--font-display);
  font-size: var(--fs-md);
  font-weight: var(--fw-semibold);
  line-height: var(--lh-normal);
  color: var(--text-secondary);
}

p {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: var(--lh-relaxed);
  color: var(--text-secondary);
}

/* =========================================
   4. SKIP TO CONTENT (Accessibility)
   ========================================= */

.skip-to-content {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  z-index: 99999;
  padding: var(--space-3) var(--space-6);
  background: var(--gradient-primary);
  color: #fff;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  text-decoration: none;
  transition: top 0.3s var(--ease-out);
}

.skip-to-content:focus {
  top: 0;
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* =========================================
   5. THEME TOGGLE BUTTON
   ========================================= */

.theme-toggle {
  position: relative;
  width: 48px;
  height: 26px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  transition: var(--transition-normal);
  overflow: hidden;
}

.theme-toggle::before {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--gradient-primary);
  top: 2px;
  left: 2px;
  transition: transform 0.4s var(--ease-spring);
  box-shadow: var(--shadow-sm);
}

[data-theme="light"] .theme-toggle::before {
  transform: translateX(22px);
  background: linear-gradient(135deg, #F59E0B, #FBBF24);
}

.theme-toggle:hover {
  border-color: var(--border-hover);
}

.theme-toggle:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

.theme-toggle-icon {
  position: absolute;
  font-size: 0.65rem;
  transition: opacity 0.3s;
}

.theme-toggle-icon.moon {
  left: 6px;
  opacity: 1;
}

.theme-toggle-icon.sun {
  right: 6px;
  opacity: 0.4;
}

[data-theme="light"] .theme-toggle-icon.moon { opacity: 0.4; }
[data-theme="light"] .theme-toggle-icon.sun { opacity: 1; }

/* =========================================
   6. BUTTON SYSTEM
   ========================================= */

/* Base Button */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-weight: var(--fw-semibold);
  text-decoration: none;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-full);
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

.btn:active {
  transform: translateY(1px);
}

.btn:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 3px;
}

.btn:disabled,
.btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Button Sizes */
.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--fs-xs);
  gap: var(--space-1);
  min-height: 36px;
}

.btn-md,
.btn-primary,
.btn-secondary {
  padding: var(--space-3) var(--space-8);
  font-size: var(--fs-sm);
  min-height: 44px;
}

.btn-lg {
  padding: var(--space-4) var(--space-10);
  font-size: var(--fs-base);
  gap: var(--space-3);
  min-height: 52px;
}

/* Primary Button */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-8);
  background: var(--gradient-primary);
  color: #fff;
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-weight: var(--fw-bold);
  font-size: var(--fs-sm);
  border: none;
  cursor: pointer;
  transition: var(--transition-normal);
  box-shadow: var(--shadow-glow);
  position: relative;
  overflow: hidden;
  text-decoration: none;
  min-height: 44px;
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.25) 0%, transparent 100%);
  opacity: 0;
  transition: opacity var(--duration-normal);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(200, 16, 46, 0.5);
}

.btn-primary:hover::before { opacity: 1; }

.btn-primary:active {
  transform: translateY(1px);
}

.btn-primary:focus-visible {
  outline: 3px solid var(--color-primary-light);
  outline-offset: 3px;
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Secondary Button */
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-8);
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-sm);
  cursor: pointer;
  transition: var(--transition-normal);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  text-decoration: none;
  min-height: 44px;
}

.btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  background: rgba(200, 16, 46, 0.05);
}

.btn-secondary:active {
  transform: translateY(1px);
}

.btn-secondary:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 3px;
}

/* Ghost Button */
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: transparent;
  color: var(--text-secondary);
  border: none;
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-sm);
  cursor: pointer;
  transition: var(--transition-normal);
  text-decoration: none;
  min-height: 44px;
}

.btn-ghost:hover {
  background: var(--bg-card);
  color: var(--text-primary);
  transform: translateY(-2px);
}

.btn-ghost:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 3px;
}

/* Loading State */
.btn-loading {
  pointer-events: none;
  position: relative;
  color: transparent !important;
}

.btn-loading::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: btn-spin 0.6s linear infinite;
}

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

/* =========================================
   7. FORM SYSTEM
   ========================================= */

/* Form Group with Floating Label */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  position: relative;
}

.form-group.full { grid-column: 1 / -1; }

.form-group label {
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--text-light);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  transition: var(--transition-normal);
}

/* Input Base */
.form-group input,
.form-group textarea,
.form-group select {
  padding: var(--space-3) var(--space-5);
  background: var(--bg-card);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  transition: var(--transition-normal);
  min-height: 44px;
  width: 100%;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
  opacity: 0.7;
}

/* Focus State */
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--color-primary);
  background: rgba(200, 16, 46, 0.03);
  box-shadow: 0 0 0 4px rgba(200, 16, 46, 0.1);
  outline: none;
}

.form-group input:focus + label,
.form-group textarea:focus + label,
.form-group select:focus + label {
  color: var(--color-primary);
}

/* Validation States */
.form-group.error input,
.form-group.error textarea,
.form-group.error select {
  border-color: var(--color-error);
  box-shadow: 0 0 0 4px var(--color-error-light);
}

.form-group.success input,
.form-group.success textarea,
.form-group.success select {
  border-color: var(--color-success);
  box-shadow: 0 0 0 4px var(--color-success-light);
}

.form-error-msg {
  font-size: var(--fs-xs);
  color: var(--color-error);
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-top: var(--space-1);
}

.form-success-msg {
  font-size: var(--fs-xs);
  color: var(--color-success);
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-top: var(--space-1);
}

/* Textarea */
.form-group textarea {
  resize: vertical;
  min-height: 140px;
  line-height: var(--lh-relaxed);
}

/* Select */
.form-group select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  padding-right: var(--space-10);
}

.form-group select option {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

/* Checkbox & Radio Custom */
.form-check {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  cursor: pointer;
  min-height: 44px;
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
  appearance: none;
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-xs);
  cursor: pointer;
  transition: var(--transition-fast);
  position: relative;
  flex-shrink: 0;
  min-height: unset;
  padding: 0;
}

.form-check input[type="radio"] {
  border-radius: 50%;
}

.form-check input[type="checkbox"]:checked,
.form-check input[type="radio"]:checked {
  background: var(--gradient-primary);
  border-color: var(--color-primary);
}

.form-check input[type="checkbox"]:checked::after {
  content: '\2713';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #fff;
  font-size: 12px;
  font-weight: bold;
}

.form-check input[type="radio"]:checked::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 8px;
  height: 8px;
  background: #fff;
  border-radius: 50%;
}

.form-check input:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* =========================================
   8. TOAST NOTIFICATION SYSTEM
   ========================================= */

.toast-container {
  position: fixed;
  top: var(--space-6);
  right: var(--space-6);
  z-index: var(--z-tooltip);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  background: var(--bg-elevated);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 300px;
  max-width: 420px;
  pointer-events: auto;
  transform: translateX(120%);
  opacity: 0;
  animation: toast-slide-in 0.5s var(--ease-spring) forwards;
}

.toast.toast-out {
  animation: toast-slide-out 0.4s var(--ease-out) forwards;
}

.toast-icon {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  flex-shrink: 0;
}

.toast-success .toast-icon { background: var(--color-success-light); color: var(--color-success); }
.toast-error .toast-icon { background: var(--color-error-light); color: var(--color-error); }
.toast-warning .toast-icon { background: var(--color-warning-light); color: var(--color-warning); }
.toast-info .toast-icon { background: var(--color-info-light); color: var(--color-info); }

.toast-content {
  flex: 1;
}

.toast-title {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--text-primary);
  margin-bottom: 2px;
}

.toast-message {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  line-height: var(--lh-normal);
}

.toast-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: var(--space-1);
  font-size: 0.85rem;
  transition: var(--transition-fast);
  border-radius: var(--radius-xs);
  min-height: unset;
  min-width: unset;
}

.toast-close:hover {
  color: var(--text-primary);
  background: var(--bg-card);
}

@keyframes toast-slide-in {
  from { transform: translateX(120%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes toast-slide-out {
  from { transform: translateX(0); opacity: 1; }
  to { transform: translateX(120%); opacity: 0; }
}

/* =========================================
   9. SCROLL TO TOP BUTTON
   ========================================= */

.back-to-top {
  position: fixed;
  bottom: var(--space-8);
  right: var(--space-8);
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1rem;
  cursor: pointer;
  z-index: var(--z-dropdown);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: var(--transition-normal);
  box-shadow: var(--shadow-glow);
  border: none;
  min-height: 48px;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(200, 16, 46, 0.6);
}

.back-to-top:focus-visible {
  outline: 3px solid var(--color-primary-light);
  outline-offset: 3px;
}

/* =========================================
   10. CARD SYSTEM (Glassmorphism)
   ========================================= */

.glass-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  transition: var(--transition-normal);
}

.glass-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-card-hover);
}

/* Enhanced Card */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.card:hover {
  border-color: var(--border-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease-out);
}

.card:hover::before {
  transform: scaleX(1);
}

/* =========================================
   11. IMAGE SYSTEM
   ========================================= */

.img-responsive {
  border-radius: var(--radius-md);
  overflow: hidden;
}

.img-responsive img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}

.img-responsive:hover img {
  transform: scale(1.05);
}

/* =========================================
   12. MODAL / LIGHTBOX
   ========================================= */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-normal);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  max-width: 800px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.9) translateY(20px);
  transition: transform 0.4s var(--ease-spring);
  position: relative;
}

.modal-overlay.active .modal-content {
  transform: scale(1) translateY(0);
}

.modal-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
  z-index: 1;
}

.modal-close:hover {
  background: var(--color-error);
  color: #fff;
  border-color: transparent;
}

/* =========================================
   13. NEWSLETTER FORM
   ========================================= */

.newsletter-form {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.newsletter-form input {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  transition: var(--transition-normal);
  min-height: 44px;
}

.newsletter-form input:focus {
  border-color: var(--color-primary);
  outline: none;
  box-shadow: 0 0 0 3px rgba(200, 16, 46, 0.1);
}

.newsletter-form button {
  padding: var(--space-3) var(--space-5);
  background: var(--gradient-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-sm);
  cursor: pointer;
  transition: var(--transition-normal);
  white-space: nowrap;
  min-height: 44px;
}

.newsletter-form button:hover {
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

/* =========================================
   14. UTILITY CLASSES
   ========================================= */

/* Text */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-accent { color: var(--color-primary); }

/* Gradient Text */
.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Spacing */
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-0 { margin-bottom: 0; }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

/* Display */
.flex { display: flex; }
.grid { display: grid; }
.hidden { display: none; }
.block { display: block; }
.inline-flex { display: inline-flex; }

/* Flex Utils */
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* Visibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Focus Visible */
*:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* =========================================
   15. RESPONSIVE BREAKPOINTS
   ========================================= */

/* Tablet */
@media (max-width: 1100px) {
  .toast-container {
    right: var(--space-4);
    left: var(--space-4);
  }

  .toast {
    min-width: unset;
    max-width: 100%;
  }
}

/* Mobile */
@media (max-width: 640px) {
  .toast-container {
    top: var(--space-4);
    right: var(--space-3);
    left: var(--space-3);
  }

  .back-to-top {
    bottom: var(--space-6);
    right: var(--space-4);
    width: 44px;
    height: 44px;
  }

  .newsletter-form {
    flex-direction: column;
  }

  .modal-content {
    margin: var(--space-4);
    border-radius: var(--radius-lg);
  }
}