/* =========================
   INEO THEME SYSTEM
   Dark/Light Mode with Cyan Accent
========================= */

:root {
  /* Accent - Cyan only */
  --accent-color: #00ffcc;
  --accent-glow: rgba(0, 255, 204, 0.5);
  --accent-color-rgb: 0, 255, 204;
  
  /* Default to dark mode */
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-tertiary: #1a1a1a;
  --bg-card: rgba(255, 255, 255, 0.03);
  
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.75);
  --text-muted: rgba(255, 255, 255, 0.5);
  --text-inverse: #000000;
  
  --border-color: rgba(255, 255, 255, 0.12);
  --border-subtle: rgba(255, 255, 255, 0.08);
  
  --panel-top: rgba(255, 255, 255, 0.07);
  --panel-bot: rgba(255, 255, 255, 0.03);
  --panel-border: rgba(255, 255, 255, 0.11);
  --hero-glow: rgba(0, 255, 204, 0.15);
  --radius-card: 24px;
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px var(--accent-glow);
}

/* =========================
   DARK MODE (Default)
========================= */

:root[data-theme="dark"],
:root:not([data-theme]) {
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-tertiary: #1a1a1a;
  --bg-card: rgba(255, 255, 255, 0.03);
  
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.75);
  --text-muted: rgba(255, 255, 255, 0.5);
  --text-inverse: #000000;
  
  --border-color: rgba(255, 255, 255, 0.12);
  --border-subtle: rgba(255, 255, 255, 0.08);
  
  --panel-top: rgba(255, 255, 255, 0.07);
  --panel-bot: rgba(255, 255, 255, 0.03);
  --panel-border: rgba(255, 255, 255, 0.11);
  
  --input-bg: rgba(255, 255, 255, 0.05);
  --input-border: rgba(255, 255, 255, 0.15);
  --input-focus: rgba(0, 255, 204, 0.3);
  
  --navbar-bg: rgba(10, 10, 10, 0.85);
  --menu-bg: rgba(15, 15, 15, 0.98);
}

:root[data-theme="dark"] body,
:root:not([data-theme]) body {
  background: 
    radial-gradient(circle at 80% 80%, rgba(0, 255, 204, 0.06) 0%, transparent 50%),
    radial-gradient(circle at 20% 20%, rgba(0, 255, 204, 0.04) 0%, transparent 50%),
    #0a0a0a;
}

/* =========================
   LIGHT MODE
========================= */

:root[data-theme="light"] {
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #f0f2f5;
  --bg-card: rgba(0, 0, 0, 0.02);
  
  --text-primary: #111111;
  --text-secondary: rgba(0, 0, 0, 0.75);
  --text-muted: rgba(0, 0, 0, 0.5);
  --text-inverse: #ffffff;
  
  --border-color: rgba(0, 0, 0, 0.1);
  --border-subtle: rgba(0, 0, 0, 0.06);
  
  --panel-top: rgba(0, 0, 0, 0.03);
  --panel-bot: rgba(0, 0, 0, 0.01);
  --panel-border: rgba(0, 0, 0, 0.08);
  --hero-glow: rgba(0, 255, 204, 0.2);
  
  --input-bg: rgba(0, 0, 0, 0.03);
  --input-border: rgba(0, 0, 0, 0.12);
  --input-focus: rgba(0, 255, 204, 0.4);
  
  --navbar-bg: rgba(255, 255, 255, 0.9);
  --menu-bg: rgba(255, 255, 255, 0.98);
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.12);
  --shadow-glow: 0 0 30px rgba(0, 255, 204, 0.3);
  
  /* Darker cyan for light mode readability */
  --accent-color: #00c9a0;
  --accent-glow: rgba(0, 201, 160, 0.4);
}

:root[data-theme="light"] body {
  background: 
    radial-gradient(circle at 80% 80%, rgba(0, 255, 204, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 20% 20%, rgba(0, 255, 204, 0.05) 0%, transparent 50%),
    #ffffff;
}

/* Light mode specific overrides */
:root[data-theme="light"] .card,
:root[data-theme="light"] .about-me,
:root[data-theme="light"] .pricing-section,
:root[data-theme="light"] .contact-section {
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.02) 0%, rgba(0, 0, 0, 0.01) 100%);
  border-color: var(--border-color);
}

:root[data-theme="light"] .service-card,
:root[data-theme="light"] .process-step,
:root[data-theme="light"] .project-card {
  background: var(--bg-card);
  border-color: var(--border-color);
}

:root[data-theme="light"] .btn {
  border-color: var(--border-color);
}

:root[data-theme="light"] .btn:not(.btn-primary) {
  color: var(--text-primary);
}

:root[data-theme="light"] .input,
:root[data-theme="light"] input,
:root[data-theme="light"] textarea {
  background: var(--input-bg);
  border-color: var(--input-border);
  color: var(--text-primary);
}

:root[data-theme="light"] .check {
  border-color: var(--border-color);
}

:root[data-theme="light"] .check:hover {
  border-color: var(--accent-color);
}

:root[data-theme="light"] .pill {
  background: rgba(0, 201, 160, 0.15);
  border-color: rgba(0, 201, 160, 0.3);
}

:root[data-theme="light"] .stats-bar {
  background: var(--bg-secondary);
  border-color: var(--border-color);
}

:root[data-theme="light"] .stat-value {
  color: #00a080;
}

:root[data-theme="light"] header {
  background: 
    radial-gradient(ellipse at top, rgba(0, 255, 204, 0.1) 0%, transparent 60%),
    var(--bg-primary);
}

:root[data-theme="light"] .header-logo img {
  filter: invert(1) drop-shadow(0 4px 12px var(--accent-glow));
}

:root[data-theme="light"] footer {
  background: var(--bg-secondary);
  border-top-color: var(--border-color);
}

/* =========================
   MODE TRANSITIONS
========================= */

html.theme-transitioning,
html.theme-transitioning *,
html.theme-transitioning *::before,
html.theme-transitioning *::after {
  transition: 
    background 0.3s ease,
    background-color 0.3s ease,
    border-color 0.3s ease,
    color 0.3s ease,
    box-shadow 0.3s ease,
    filter 0.3s ease !important;
}

/* Smooth transitions for theme changes */
body,
.card,
.panel,
.btn,
.step,
.pill,
.check,
.stats-bar,
header,
footer,
.service-card,
.process-step,
.project-card,
.input,
input,
textarea {
  transition-property: 
    background,
    background-color,
    border-color,
    color,
    box-shadow;
  transition-duration: 0.3s;
  transition-timing-function: ease;
}

/* =========================
   THEME TOGGLE BUTTON
========================= */

.theme-toggle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 2px solid var(--border-color);
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

.theme-toggle:hover {
  border-color: var(--accent-color);
  transform: scale(1.05);
}

.theme-toggle:active {
  transform: scale(0.95);
}

.theme-toggle svg {
  width: 24px;
  height: 24px;
  transition: all 0.3s ease;
}

.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
  position: absolute;
  transition: all 0.3s ease;
}

/* Dark mode - show sun icon */
:root[data-theme="dark"] .theme-toggle .icon-sun,
:root:not([data-theme]) .theme-toggle .icon-sun {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

:root[data-theme="dark"] .theme-toggle .icon-moon,
:root:not([data-theme]) .theme-toggle .icon-moon {
  opacity: 0;
  transform: rotate(-90deg) scale(0.5);
}

/* Light mode - show moon icon */
:root[data-theme="light"] .theme-toggle .icon-sun {
  opacity: 0;
  transform: rotate(90deg) scale(0.5);
  }

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

/* =========================
   HIGH CONTRAST MODE
========================= */

@media (prefers-contrast: high) {
  :root {
    --border-color: rgba(255, 255, 255, 0.3);
  }
  
  :root[data-theme="light"] {
    --border-color: rgba(0, 0, 0, 0.25);
  }
  
  .btn {
    border-width: 2px;
  }
  
  .card {
    border-width: 2px;
  }
}

/* =========================
   REDUCED MOTION
========================= */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}