/* ==============================================
   LKTech - Premium Design System
   lktech.co.tz
   ============================================== */

/* === 1. CSS CUSTOM PROPERTIES (DESIGN TOKENS) === */
:root {
  /* Purple Brand Colors */
  --purple-50:  #faf5ff;
  --purple-100: #f3e8ff;
  --purple-200: #e9d5ff;
  --purple-300: #d8b4fe;
  --purple-400: #c084fc;
  --purple-500: #a855f7;
  --purple-600: #9333ea;
  --purple-700: #7c3aed;
  --purple-800: #6d28d9;
  --purple-900: #4c1d95;

  /* Core Palette */
  --accent-cyan:   #06b6d4;
  --accent-pink:   #ec4899;
  --accent-green:  #10b981;
  --accent-yellow: #f59e0b;
  --accent-red:    #ef4444;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Space Grotesk', var(--font-sans);
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

  /* Spacing */
  --space-1: 0.25rem;  --space-2: 0.5rem;   --space-3: 0.75rem;
  --space-4: 1rem;     --space-5: 1.25rem;  --space-6: 1.5rem;
  --space-8: 2rem;     --space-10: 2.5rem;  --space-12: 3rem;
  --space-16: 4rem;    --space-20: 5rem;    --space-24: 6rem;
  --space-32: 8rem;

  /* Border Radius */
  --radius-sm:   0.375rem;
  --radius-md:   0.5rem;
  --radius-lg:   0.75rem;
  --radius-xl:   1rem;
  --radius-2xl:  1.5rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast:   150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base:   250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow:   400ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Container */
  --container-max: 1280px;
  --container-pad: 1.5rem;

  /* Z-Index Scale */
  --z-base:    1;
  --z-dropdown:100;
  --z-sticky:  200;
  --z-fixed:   300;
  --z-modal:   400;
  --z-tooltip: 500;
}

/* === DARK THEME (DEFAULT) === */
[data-theme="dark"] {
  --bg-base:      #080614;
  --bg-surface:   #0f0a1e;
  --bg-elevated:  #160d2b;
  --bg-overlay:   #1e1338;
  --bg-card:      rgba(22, 13, 43, 0.8);

  --text-primary:   #f1f0f5;
  --text-secondary: #a89ec4;
  --text-muted:     #6b6186;
  --text-inverse:   #0f0a1e;

  --border-color:   rgba(124, 58, 237, 0.15);
  --border-focus:   rgba(168, 85, 247, 0.6);

  --glow-purple:    0 0 40px rgba(124, 58, 237, 0.4);
  --glow-sm:        0 0 20px rgba(124, 58, 237, 0.25);
  --glow-accent:    0 0 60px rgba(168, 85, 247, 0.3);

  --shadow-sm:   0 1px 3px rgba(0,0,0,0.4);
  --shadow-md:   0 4px 16px rgba(0,0,0,0.5);
  --shadow-lg:   0 10px 40px rgba(0,0,0,0.6);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(124, 58, 237, 0.1);

  --nav-bg:       rgba(8, 6, 20, 0.85);
  --nav-border:   rgba(124, 58, 237, 0.2);

  --input-bg:     rgba(22, 13, 43, 0.9);
  --input-border: rgba(124, 58, 237, 0.3);
}

/* === LIGHT THEME === */
[data-theme="light"] {
  --bg-base:      #f8f7ff;
  --bg-surface:   #ffffff;
  --bg-elevated:  #f0ebff;
  --bg-overlay:   #e8dfff;
  --bg-card:      rgba(255, 255, 255, 0.95);

  --text-primary:   #1a0a3d;
  --text-secondary: #4a3a6b;
  --text-muted:     #7a6b99;
  --text-inverse:   #ffffff;

  --border-color:   rgba(124, 58, 237, 0.12);
  --border-focus:   rgba(124, 58, 237, 0.5);

  --glow-purple:    0 0 30px rgba(124, 58, 237, 0.15);
  --glow-sm:        0 0 15px rgba(124, 58, 237, 0.1);
  --glow-accent:    0 0 40px rgba(168, 85, 247, 0.15);

  --shadow-sm:   0 1px 3px rgba(0,0,0,0.08);
  --shadow-md:   0 4px 16px rgba(0,0,0,0.1);
  --shadow-lg:   0 10px 40px rgba(0,0,0,0.12);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.06), 0 0 0 1px rgba(124, 58, 237, 0.08);

  --nav-bg:       rgba(248, 247, 255, 0.9);
  --nav-border:   rgba(124, 58, 237, 0.1);

  --input-bg:     #ffffff;
  --input-border: rgba(124, 58, 237, 0.2);
}

/* === 2. RESET & BASE === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color var(--transition-slow), color var(--transition-slow);
}

/* Focus visible for accessibility */
:focus-visible {
  outline: 2px solid var(--purple-500);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
}

img, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
select, input, textarea { font-family: inherit; }

/* Selection color */
::selection {
  background: rgba(124, 58, 237, 0.4);
  color: var(--text-primary);
}

/* === 3. TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.section-title {
  font-size: clamp(1.875rem, 4vw, 2.75rem);
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  max-width: 56ch;
  margin: 0 auto;
  line-height: 1.7;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--purple-400);
  background: rgba(124, 58, 237, 0.1);
  border: 1px solid rgba(124, 58, 237, 0.2);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
}

/* Gradient text */
.text-gradient, .title-gradient {
  background: linear-gradient(135deg, var(--purple-400) 0%, var(--purple-600) 50%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* === 4. LAYOUT & CONTAINER === */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

/* === 5. CURSOR GLOW === */
.cursor-glow {
  position: fixed;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  transform: translate(-50%, -50%);
  transition: opacity 0.3s;
  will-change: transform;
}
@media (hover: none) { .cursor-glow { display: none; } }

/* === 6. NAVIGATION === */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  padding: var(--space-4) 0;
  background: transparent;
  transition: background var(--transition-base), border-color var(--transition-base),
              backdrop-filter var(--transition-base), padding var(--transition-base);
}

.navbar.scrolled {
  background: var(--nav-bg);
  border-bottom: 1px solid var(--nav-border);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  padding: var(--space-3) 0;
  box-shadow: var(--shadow-md);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  flex-shrink: 0;
}

.logo-icon {
  flex-shrink: 0;
  transition: transform var(--transition-spring);
}
.logo:hover .logo-icon { transform: scale(1.05) rotate(-3deg); }

.logo-text {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.03em;
}

.logo-accent {
  background: linear-gradient(135deg, var(--purple-400), var(--purple-600));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Nav Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
}

.nav-link {
  display: block;
  padding: var(--space-2) var(--space-3);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--purple-400), var(--purple-600));
  transform: translateX(-50%);
  border-radius: var(--radius-full);
  transition: width var(--transition-base);
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
  background: rgba(124, 58, 237, 0.08);
}
.nav-link:hover::after, .nav-link.active::after { width: calc(100% - 1.5rem); }

/* Nav Actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Theme Toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  background: rgba(124, 58, 237, 0.1);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.theme-toggle:hover {
  background: rgba(124, 58, 237, 0.2);
  color: var(--purple-400);
  border-color: var(--purple-500);
  box-shadow: var(--glow-sm);
}

.theme-icon {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
}

/* Dark mode: show sun, hide moon */
[data-theme="dark"] .theme-icon.sun { opacity: 1; transform: rotate(0deg) scale(1); }
[data-theme="dark"] .theme-icon.moon { opacity: 0; transform: rotate(90deg) scale(0.5); }
/* Light mode: hide sun, show moon */
[data-theme="light"] .theme-icon.sun { opacity: 0; transform: rotate(-90deg) scale(0.5); }
[data-theme="light"] .theme-icon.moon { opacity: 1; transform: rotate(0deg) scale(1); }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: rgba(124, 58, 237, 0.1);
  border: 1px solid var(--border-color);
  justify-content: center;
  align-items: center;
}

.hamburger span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text-primary);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  transform-origin: center;
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Nav Drawer */
.mobile-nav {
  display: none;
  padding: var(--space-4) var(--container-pad) var(--space-6);
  background: var(--nav-bg);
  border-top: 1px solid var(--nav-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.mobile-nav.open { display: block; }

.mobile-nav-link {
  display: block;
  padding: var(--space-3) var(--space-4);
  color: var(--text-secondary);
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  border-bottom: 1px solid var(--border-color);
}
.mobile-nav-link:hover { background: rgba(124, 58, 237, 0.08); color: var(--text-primary); }

/* === 7. BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 600;
  font-family: var(--font-sans);
  border-radius: var(--radius-lg);
  border: 1.5px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
  letter-spacing: 0.01em;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.08);
  opacity: 0;
  transition: opacity var(--transition-fast);
}
.btn:hover::before { opacity: 1; }

/* Primary Button */
.btn-primary {
  background: linear-gradient(135deg, var(--purple-700) 0%, var(--purple-500) 100%);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 15px rgba(124, 58, 237, 0.4), 0 0 0 0 rgba(124, 58, 237, 0);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(124, 58, 237, 0.5), 0 0 20px rgba(168, 85, 247, 0.3);
}
.btn-primary:active { transform: translateY(0); }

/* Ghost Button */
.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-color);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover {
  border-color: var(--purple-500);
  background: rgba(124, 58, 237, 0.1);
  color: var(--purple-400);
  transform: translateY(-2px);
}

/* Outline Button */
.btn-outline {
  background: transparent;
  color: var(--purple-400);
  border-color: var(--purple-600);
}
.btn-outline:hover {
  background: rgba(124, 58, 237, 0.1);
  transform: translateY(-2px);
  box-shadow: var(--glow-sm);
}

/* Sizes */
.btn-sm  { padding: 0.4rem 0.875rem; font-size: 0.8125rem; }
.btn-lg  { padding: 0.875rem 1.75rem; font-size: 1rem; border-radius: var(--radius-xl); }
.btn-full { width: 100%; }

/* === 8. HERO SECTION === */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: var(--space-32) 0 var(--space-20);
}

/* Hero Background */
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

/* Animated Grid Lines */
.grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(124, 58, 237, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124, 58, 237, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 40%, transparent 100%);
  animation: gridPulse 8s ease-in-out infinite;
}

@keyframes gridPulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 0.8; }
}

/* Glow Orbs */
.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  will-change: transform;
}

.glow-orb-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.15) 0%, transparent 70%);
  top: -100px; left: -100px;
  animation: orbFloat1 12s ease-in-out infinite;
}

.glow-orb-2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.12) 0%, transparent 70%);
  bottom: -100px; right: -50px;
  animation: orbFloat2 15s ease-in-out infinite;
}

.glow-orb-3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.08) 0%, transparent 70%);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  animation: orbFloat3 10s ease-in-out infinite;
}

@keyframes orbFloat1 {
  0%, 100% { transform: translate(0, 0); }
  33% { transform: translate(30px, -30px); }
  66% { transform: translate(-20px, 20px); }
}
@keyframes orbFloat2 {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(-40px, -40px); }
}
@keyframes orbFloat3 {
  0%, 100% { transform: translate(-50%, -50%) scale(1); }
  50% { transform: translate(-50%, -50%) scale(1.3); }
}

/* Floating code snippets */
.floating-code {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--purple-400);
  opacity: 0.25;
  white-space: nowrap;
  pointer-events: none;
  animation: floatCode 20s linear infinite;
}
.fc-1 { top: 20%; left: 5%;  animation-delay: 0s; }
.fc-2 { top: 65%; right: 8%; animation-delay: 7s; }
.fc-3 { top: 40%; right: 15%; animation-delay: 14s; }

.code-line {
  background: rgba(124, 58, 237, 0.08);
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(124, 58, 237, 0.15);
  backdrop-filter: blur(8px);
}

@keyframes floatCode {
  0% { transform: translateY(0) translateX(0); opacity: 0.15; }
  50% { opacity: 0.3; }
  100% { transform: translateY(-20px) translateX(10px); opacity: 0.15; }
}

/* Hero Container */
.hero-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--space-16);
  position: relative;
  z-index: var(--z-base);
}

/* Hero Content */
.hero-content { max-width: 640px; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--purple-300);
  background: rgba(124, 58, 237, 0.08);
  border: 1px solid rgba(124, 58, 237, 0.2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-6);
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 8px var(--accent-green);
  animation: pulse 2s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 6px var(--accent-green); transform: scale(1); }
  50% { box-shadow: 0 0 12px var(--accent-green), 0 0 20px rgba(16,185,129,0.4); transform: scale(1.2); }
}

/* Hero Title */
.hero-title {
  font-size: clamp(2.5rem, 5.5vw, 4rem);
  line-height: 1.1;
  margin-bottom: var(--space-6);
  letter-spacing: -0.03em;
}

.typed-wrapper {
  display: inline-block;
  min-width: 280px;
}

.typed-text {
  background: linear-gradient(135deg, var(--purple-300) 0%, var(--purple-500) 50%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  background-size: 200% auto;
  animation: gradientShift 4s ease-in-out infinite;
}

@keyframes gradientShift {
  0% { background-position: 0% center; }
  50% { background-position: 100% center; }
  100% { background-position: 0% center; }
}

.typed-cursor {
  display: inline-block;
  color: var(--purple-400);
  animation: blink 1s step-start infinite;
  font-weight: 300;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

/* Hero Subtitle */
.hero-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: var(--space-8);
}
.hero-subtitle strong { color: var(--purple-300); font-weight: 600; }

/* Hero Actions */
.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
}

/* Hero Stats */
.hero-stats {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-6);
  padding: var(--space-6);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-2xl);
  backdrop-filter: blur(16px);
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--purple-300), var(--purple-500));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.stat-plus {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--purple-400);
  line-height: 1;
}
.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
  font-weight: 500;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border-color);
  flex-shrink: 0;
}

/* Hero Visual */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.hero-card-stack {
  position: relative;
  width: 380px;
  height: 440px;
}

/* Tech Cards */
.tech-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-lg);
  animation: cardFloat 6s ease-in-out infinite;
  min-width: 200px;
  z-index: 2;
}

.tc-web    { top: 0;   right: -20px; animation-delay: 0s; }
.tc-security { bottom: 40px; right: -20px; animation-delay: 2s; }
.tc-auto   { bottom: 0; left: -20px; animation-delay: 4s; }

@keyframes cardFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.tc-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--purple-700), var(--purple-500));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(124, 58, 237, 0.4);
}

.tc-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.tc-title {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
}

.tc-sub {
  font-size: 0.6875rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.tc-status {
  margin-left: auto;
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

.tc-status.online  { background: rgba(16,185,129,0.15); color: var(--accent-green); border: 1px solid rgba(16,185,129,0.3); }
.tc-status.secure  { background: rgba(6,182,212,0.15);  color: var(--accent-cyan);  border: 1px solid rgba(6,182,212,0.3); }
.tc-status.running { background: rgba(168,85,247,0.15); color: var(--purple-400);   border: 1px solid rgba(168,85,247,0.3); }

/* Device Mockup */
.device-mockup {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 260px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg), var(--glow-sm);
  z-index: 1;
  animation: devicePulse 6s ease-in-out infinite;
}

@keyframes devicePulse {
  0%, 100% { box-shadow: var(--shadow-lg), 0 0 20px rgba(124, 58, 237, 0.2); }
  50% { box-shadow: var(--shadow-lg), 0 0 40px rgba(124, 58, 237, 0.4); }
}

.device-screen { padding: var(--space-2); }

.screen-ui {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.ui-topbar {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border-color);
}

.ui-dots { display: flex; gap: 5px; }
.ui-dots i { width: 8px; height: 8px; border-radius: 50%; background: var(--border-color); }
.ui-dots i:nth-child(1) { background: #ef4444; }
.ui-dots i:nth-child(2) { background: #f59e0b; }
.ui-dots i:nth-child(3) { background: #10b981; }

.ui-url {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--text-muted);
  background: var(--bg-base);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  flex: 1;
  text-align: center;
}

.ui-content { padding: var(--space-3); display: flex; flex-direction: column; gap: var(--space-2); }
.ui-row { display: flex; gap: var(--space-2); }

.ui-block {
  height: 10px;
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  animation: shimmer 2s ease-in-out infinite;
  flex: 1;
}
.ui-block.wide   { flex: 2; }
.ui-block.medium { flex: 1.5; }
.ui-block.purple { background: linear-gradient(90deg, var(--purple-700), var(--purple-500)); height: 14px; }
.ui-block.accent { background: linear-gradient(90deg, var(--purple-600), var(--accent-cyan)); height: 12px; }

@keyframes shimmer {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 52px;
  border: 2px solid rgba(124, 58, 237, 0.3);
  border-radius: var(--radius-full);
  animation: scrollBounce 2s ease-in-out infinite;
}

.scroll-dot {
  width: 4px;
  height: 10px;
  background: var(--purple-400);
  border-radius: var(--radius-full);
  animation: scrollDot 2s ease-in-out infinite;
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); border-color: rgba(124, 58, 237, 0.3); }
  50% { transform: translateX(-50%) translateY(-5px); border-color: rgba(124, 58, 237, 0.6); }
}
@keyframes scrollDot {
  0% { transform: translateY(-4px); opacity: 1; }
  100% { transform: translateY(4px); opacity: 0; }
}

/* === 9. SERVICES SECTION === */
.services {
  padding: var(--space-32) 0;
  background: var(--bg-surface);
  position: relative;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  margin-bottom: var(--space-16);
}

/* Service Card */
.service-card {
  position: relative;
  padding: var(--space-8);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  transition: transform var(--transition-base), border-color var(--transition-base),
              box-shadow var(--transition-base);
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(124, 58, 237, 0.4);
  box-shadow: var(--shadow-card), var(--glow-sm);
}

.service-card-glow {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--purple-500), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}
.service-card:hover .service-card-glow { opacity: 1; }

/* Featured card */
.service-card-featured {
  background: linear-gradient(135deg,
    rgba(124, 58, 237, 0.12) 0%,
    rgba(22, 13, 43, 0.95) 100%);
  border-color: rgba(124, 58, 237, 0.35);
  box-shadow: var(--shadow-card);
}

.service-badge-featured {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 3px 10px;
  background: linear-gradient(135deg, var(--purple-700), var(--purple-500));
  color: #fff;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.service-icon-wrap {
  margin-bottom: var(--space-6);
}

.service-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.2), rgba(168, 85, 247, 0.1));
  border: 1px solid rgba(124, 58, 237, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--purple-400);
  transition: all var(--transition-base);
}

.service-card:hover .service-icon {
  background: linear-gradient(135deg, var(--purple-700), var(--purple-500));
  color: #fff;
  box-shadow: 0 8px 20px rgba(124, 58, 237, 0.4);
  transform: scale(1.05);
}

.service-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--space-3);
  color: var(--text-primary);
}

.service-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-5);
}

.service-features {
  list-style: none;
  margin-bottom: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.service-features li {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.875rem;
  color: var(--text-secondary);
}
.service-features li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--purple-500);
  flex-shrink: 0;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--purple-400);
  transition: gap var(--transition-base), color var(--transition-base);
}
.service-link:hover { color: var(--purple-300); gap: var(--space-3); }

/* Tech Stack Marquee */
.tech-strip {
  text-align: center;
}

.tech-strip-label {
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-6);
}

.tech-marquee {
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, black 10%, black 90%, transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0%, black 10%, black 90%, transparent 100%);
}

.tech-track {
  display: flex;
  gap: var(--space-3);
  width: max-content;
  animation: marquee 30s linear infinite;
}
.tech-track:hover { animation-play-state: paused; }

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.tech-tag {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-4);
  background: rgba(124, 58, 237, 0.08);
  border: 1px solid rgba(124, 58, 237, 0.15);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
  transition: all var(--transition-fast);
  cursor: default;
}
.tech-tag:hover {
  background: rgba(124, 58, 237, 0.15);
  color: var(--purple-300);
  border-color: rgba(124, 58, 237, 0.35);
}

/* === 10. ABOUT SECTION === */
.about {
  padding: var(--space-32) 0;
  background: var(--bg-base);
}

.about-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--space-20);
}

.about-image-wrap {
  position: relative;
  height: 480px;
}

.about-image-placeholder {
  width: 100%;
  height: 100%;
  border-radius: var(--radius-2xl);
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* Animated graphic */
.about-graphic {
  position: relative;
  width: 200px;
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ag-circle {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(124, 58, 237, 0.3);
  animation: agRotate 15s linear infinite;
}
.ag-c1 { width: 180px; height: 180px; animation-duration: 12s; border-color: rgba(124, 58, 237, 0.2); }
.ag-c2 { width: 130px; height: 130px; animation-duration: 8s; animation-direction: reverse; border-color: rgba(168, 85, 247, 0.3); border-style: dashed; }
.ag-c3 { width: 80px; height: 80px; animation-duration: 6s; background: rgba(124, 58, 237, 0.05); }

@keyframes agRotate { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.ag-icon-center {
  position: relative;
  z-index: 1;
}

/* Achievement badges */
.achievement-badge {
  position: absolute;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-md);
  animation: badgeFloat 5s ease-in-out infinite;
}

.ab-1 { top: var(--space-8);  right: -20px; animation-delay: 0s; }
.ab-2 { bottom: var(--space-8); left: -20px; animation-delay: 2.5s; }

@keyframes badgeFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.ab-icon { font-size: 1.5rem; flex-shrink: 0; }

.achievement-badge strong {
  display: block;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--text-primary);
}
.achievement-badge small {
  display: block;
  font-size: 0.6875rem;
  color: var(--text-muted);
}

/* About Content */
.about-text {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-4);
}

.values-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin: var(--space-8) 0;
}

.value-item {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}
.value-item:hover {
  border-color: rgba(124, 58, 237, 0.3);
  box-shadow: var(--glow-sm);
}

.value-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--purple-700), var(--purple-500));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
}

.value-item strong {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}
.value-item p {
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.about-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-top: var(--space-8);
}

/* === 11. PORTFOLIO SECTION === */
.portfolio {
  padding: var(--space-32) 0;
  background: var(--bg-surface);
}

.portfolio-filters {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-bottom: var(--space-12);
}

.filter-btn {
  padding: var(--space-2) var(--space-5);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-base);
}
.filter-btn:hover {
  background: rgba(124, 58, 237, 0.08);
  border-color: rgba(124, 58, 237, 0.3);
  color: var(--purple-400);
}
.filter-btn.active {
  background: linear-gradient(135deg, var(--purple-700), var(--purple-500));
  border-color: transparent;
  color: #fff;
  box-shadow: 0 4px 12px rgba(124, 58, 237, 0.4);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  margin-bottom: var(--space-12);
}

/* Portfolio Card */
.portfolio-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base),
              border-color var(--transition-base), opacity var(--transition-base);
}
.portfolio-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card), var(--glow-sm);
  border-color: rgba(124, 58, 237, 0.35);
}
.portfolio-card.hidden {
  opacity: 0;
  pointer-events: none;
  transform: scale(0.95);
}

.portfolio-card-visual {
  position: relative;
  height: 200px;
  overflow: hidden;
}

/* Project Previews */
.project-preview {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}

.pp-1 { background: linear-gradient(135deg, rgba(124,58,237,0.15), rgba(8,6,20,0.9)); }
.pp-2 { background: linear-gradient(135deg, rgba(6,182,212,0.1), rgba(8,6,20,0.9)); }
.pp-3 { background: linear-gradient(135deg, rgba(16,185,129,0.1), rgba(8,6,20,0.9)); }
.pp-4 { background: linear-gradient(135deg, rgba(236,72,153,0.1), rgba(8,6,20,0.9)); }
.pp-5 { background: linear-gradient(135deg, rgba(245,158,11,0.1), rgba(8,6,20,0.9)); }
.pp-6 { background: linear-gradient(135deg, rgba(6,182,212,0.15), rgba(8,6,20,0.9)); }

.pp-window {
  width: 100%;
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.pp-topbar {
  display: flex;
  gap: 5px;
  padding: 8px 12px;
  background: var(--bg-base);
  border-bottom: 1px solid var(--border-color);
}
.pp-topbar i { width: 8px; height: 8px; border-radius: 50%; background: var(--border-color); }
.pp-topbar i:nth-child(1) { background: #ef4444; }
.pp-topbar i:nth-child(2) { background: #f59e0b; }
.pp-topbar i:nth-child(3) { background: #10b981; }

.pp-body { padding: var(--space-3); display: flex; flex-direction: column; gap: 6px; }
.pp-row { display: flex; gap: 6px; }

.pp-block {
  height: 8px; border-radius: 4px;
  background: rgba(124, 58, 237, 0.15);
  animation: shimmer 2s ease-in-out infinite;
  flex: 1;
}
.pp-block.wide { flex: 2; }
.pp-block.medium { flex: 1.5; }
.pp-block.accent { background: rgba(6, 182, 212, 0.3); }
.pp-block.purple { background: rgba(124, 58, 237, 0.4); height: 12px; }

/* Code simulation */
.pp-code .pp-body { padding: 0; }
.code-sim {
  padding: var(--space-3);
  background: #0d1117;
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
}
.cs-line { color: #cdd9e5; }
.cs-line em { color: var(--purple-400); font-style: normal; }
.cs-line.cs-green { color: var(--accent-green); }
.cs-line.cs-dim { color: #636e7b; }

/* Security simulation */
.pp-security .pp-body { padding: 0; }
.sec-status {
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.sec-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.7rem;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
}
.sec-item.secure { background: rgba(16,185,129,0.1); color: var(--accent-green); }
.sec-item.warning { background: rgba(245,158,11,0.1); color: var(--accent-yellow); }

/* Dashboard grid */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  padding: var(--space-2);
}
.dg-card { height: 40px; border-radius: var(--radius-md); background: rgba(124,58,237,0.1); }
.dg-card.purple { background: rgba(124,58,237,0.3); }
.dg-card.accent { background: rgba(6,182,212,0.2); }
.dg-wide { grid-column: span 2; height: 20px; border-radius: var(--radius-md); background: rgba(168,85,247,0.15); }

/* Portfolio Overlay */
.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: rgba(8, 6, 20, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-base);
  backdrop-filter: blur(4px);
}
.portfolio-card:hover .portfolio-overlay { opacity: 1; }

.portfolio-card-info { padding: var(--space-5); }

.portfolio-category {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--purple-400);
  margin-bottom: var(--space-2);
}

.portfolio-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.portfolio-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-3);
}

.portfolio-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}
.portfolio-tags span {
  font-size: 0.6875rem;
  font-weight: 500;
  padding: 2px 8px;
  background: rgba(124, 58, 237, 0.1);
  border: 1px solid rgba(124, 58, 237, 0.2);
  border-radius: var(--radius-full);
  color: var(--purple-300);
  font-family: var(--font-mono);
}

.portfolio-cta {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}
.portfolio-cta p { font-size: 1.125rem; color: var(--text-secondary); }

/* === 12. TESTIMONIALS === */
.trust {
  padding: var(--space-32) 0;
  background: var(--bg-base);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.testimonial-card {
  padding: var(--space-8);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-2xl);
  transition: transform var(--transition-base), border-color var(--transition-base);
}
.testimonial-card:hover {
  transform: translateY(-4px);
  border-color: rgba(124, 58, 237, 0.3);
}

.testimonial-stars {
  color: var(--accent-yellow);
  font-size: 1rem;
  letter-spacing: 2px;
  margin-bottom: var(--space-4);
}

.testimonial-text {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: var(--space-6);
  font-style: italic;
}
.testimonial-text::before { content: '"'; color: var(--purple-400); font-size: 2rem; line-height: 0; vertical-align: -0.4em; margin-right: 4px; }

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--purple-700), var(--purple-500));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8125rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.author-name {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  font-style: normal;
}
.author-role { font-size: 0.8rem; color: var(--text-muted); }

/* === 13. CONTACT SECTION === */
.contact {
  padding: var(--space-32) 0;
  background: var(--bg-surface);
  position: relative;
}

.contact::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(ellipse 60% 50% at 50% 0%, rgba(124, 58, 237, 0.05) 0%, transparent 70%);
  pointer-events: none;
}

.contact-container {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  align-items: start;
  gap: var(--space-16);
  position: relative;
}

.contact-text {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin: var(--space-5) 0 var(--space-8);
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.contact-detail-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.cd-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-xl);
  background: rgba(124, 58, 237, 0.1);
  border: 1px solid rgba(124, 58, 237, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--purple-400);
  flex-shrink: 0;
  transition: all var(--transition-base);
}
.contact-detail-item:hover .cd-icon {
  background: linear-gradient(135deg, var(--purple-700), var(--purple-500));
  color: #fff;
  box-shadow: 0 4px 12px rgba(124, 58, 237, 0.4);
}

.contact-detail-item strong {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 2px;
}
.contact-detail-item a, .contact-detail-item span {
  font-size: 0.9375rem;
  color: var(--text-primary);
  transition: color var(--transition-fast);
}
.contact-detail-item a:hover { color: var(--purple-400); }

.response-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: var(--radius-xl);
  font-size: 0.875rem;
  color: var(--text-secondary);
}
.response-badge strong { color: var(--accent-green); }

.badge-dot.pulsing {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent-green);
  animation: pulse 2s ease-in-out infinite;
  flex-shrink: 0;
}

/* Contact Form */
.contact-form-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  backdrop-filter: blur(16px);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  position: relative;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 4px;
}

.required { color: var(--purple-400); }

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--input-bg);
  border: 1.5px solid var(--input-border);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  font-size: 0.9375rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  appearance: none;
  -webkit-appearance: none;
}

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%239333ea' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.6;
}

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

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
  border-color: var(--accent-red);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-error {
  font-size: 0.8125rem;
  color: var(--accent-red);
  min-height: 1.2em;
  display: block;
}

.char-counter {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: right;
  margin-top: 4px;
}

/* Checkbox */
.form-checkbox {
  flex-direction: row;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.form-checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  border: 1.5px solid var(--input-border);
  cursor: pointer;
  flex-shrink: 0;
  margin-top: 2px;
  appearance: none;
  -webkit-appearance: none;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}
.form-checkbox input[type="checkbox"]:checked {
  background: var(--purple-600);
  border-color: var(--purple-600);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='9' viewBox='0 0 12 9'%3E%3Cpolyline points='1,4 4.5,7.5 11,1' stroke='white' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
}

.form-checkbox label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
  cursor: pointer;
}

.link-inline { color: var(--purple-400); text-decoration: underline; }
.link-inline:hover { color: var(--purple-300); }

/* Submit Button States */
#submitBtn { position: relative; }
.btn-loading { display: none; align-items: center; gap: var(--space-2); }
#submitBtn.loading .btn-text { display: none; }
#submitBtn.loading .btn-loading { display: flex; }

.spinner { animation: spin 1s linear infinite; }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

/* Form Messages */
.form-success, .form-failure {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  font-size: 0.9rem;
  margin-top: var(--space-4);
}

.form-success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--accent-green);
}

.form-failure {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: var(--accent-red);
}

/* === 14. FOOTER === */
.footer {
  background: var(--bg-base);
  border-top: 1px solid var(--border-color);
  padding: var(--space-20) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer-tagline {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin: var(--space-4) 0 var(--space-6);
}

.footer-socials {
  display: flex;
  gap: var(--space-3);
}

.social-link {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  background: rgba(124, 58, 237, 0.1);
  border: 1px solid rgba(124, 58, 237, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: all var(--transition-base);
}
.social-link:hover {
  background: rgba(124, 58, 237, 0.2);
  color: var(--purple-400);
  border-color: rgba(124, 58, 237, 0.4);
  transform: translateY(-2px);
  box-shadow: var(--glow-sm);
}

.footer-col-title {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-primary);
  margin-bottom: var(--space-5);
}

.footer-col ul li + li { margin-top: var(--space-3); }
.footer-col a, .footer-col address p {
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: color var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.footer-col a:hover { color: var(--purple-400); }

.footer-address { font-style: normal; display: flex; flex-direction: column; gap: var(--space-3); }
.footer-address p { display: flex; align-items: center; gap: var(--space-2); color: var(--text-muted); font-size: 0.9rem; }
.footer-address svg { flex-shrink: 0; color: var(--purple-500); }

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-copy {
  font-size: 0.875rem;
  color: var(--text-muted);
}
.footer-copy a { color: var(--text-muted); transition: color var(--transition-fast); }
.footer-copy a:hover { color: var(--purple-400); }

.footer-made {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.heart { color: var(--accent-red); animation: heartbeat 1.5s ease-in-out infinite; display: inline-block; }
@keyframes heartbeat {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.2); }
}

/* === 15. BACK TO TOP === */
.back-to-top {
  position: fixed;
  bottom: var(--space-8);
  right: var(--space-8);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--purple-700), var(--purple-500));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(124, 58, 237, 0.4);
  z-index: var(--z-fixed);
  transition: all var(--transition-base);
  opacity: 0;
  pointer-events: none;
  transform: translateY(20px);
}

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

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(124, 58, 237, 0.6);
}

/* === 16. AOS ANIMATIONS === */
[data-aos] {
  opacity: 0;
  transition-property: opacity, transform;
  transition-duration: 600ms;
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

[data-aos="fade-up"]    { transform: translateY(30px); }
[data-aos="fade-down"]  { transform: translateY(-30px); }
[data-aos="fade-left"]  { transform: translateX(30px); }
[data-aos="fade-right"] { transform: translateX(-30px); }

[data-aos].aos-animate {
  opacity: 1;
  transform: translate(0, 0);
}

[data-aos-delay="100"]  { transition-delay: 100ms; }
[data-aos-delay="200"]  { transition-delay: 200ms; }
[data-aos-delay="300"]  { transition-delay: 300ms; }
[data-aos-delay="400"]  { transition-delay: 400ms; }
[data-aos-delay="500"]  { transition-delay: 500ms; }

/* === 17. LIGHT THEME OVERRIDES === */
[data-theme="light"] .grid-lines {
  background-image:
    linear-gradient(rgba(124, 58, 237, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124, 58, 237, 0.06) 1px, transparent 1px);
}

[data-theme="light"] .hero-bg .glow-orb-1 {
  background: radial-gradient(circle, rgba(124, 58, 237, 0.1) 0%, transparent 70%);
}

[data-theme="light"] .about-image-placeholder { background: var(--bg-elevated); }

[data-theme="light"] .pp-1 { background: linear-gradient(135deg, rgba(124,58,237,0.1), rgba(248,247,255,0.95)); }
[data-theme="light"] .pp-2 { background: linear-gradient(135deg, rgba(6,182,212,0.1), rgba(248,247,255,0.95)); }
[data-theme="light"] .pp-3 { background: linear-gradient(135deg, rgba(16,185,129,0.1), rgba(248,247,255,0.95)); }
[data-theme="light"] .pp-4 { background: linear-gradient(135deg, rgba(236,72,153,0.1), rgba(248,247,255,0.95)); }
[data-theme="light"] .pp-5 { background: linear-gradient(135deg, rgba(245,158,11,0.1), rgba(248,247,255,0.95)); }
[data-theme="light"] .pp-6 { background: linear-gradient(135deg, rgba(6,182,212,0.1), rgba(248,247,255,0.95)); }

[data-theme="light"] .code-sim { background: #f3f4f6; }
[data-theme="light"] .cs-line { color: #374151; }
[data-theme="light"] .cs-dim { color: #9ca3af; }

/* === 18. RESPONSIVE DESIGN === */

/* Tablet: 1024px */
@media (max-width: 1024px) {
  :root { --container-pad: 1.25rem; }

  .hero-container { grid-template-columns: 1fr; gap: var(--space-12); }
  .hero-visual { display: none; }
  .hero-content { max-width: 100%; text-align: center; }
  .hero-actions { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero { min-height: 90vh; }

  .services-grid { grid-template-columns: 1fr; max-width: 520px; margin: 0 auto var(--space-16); }

  .about-container { grid-template-columns: 1fr; gap: var(--space-12); }
  .about-visual { display: none; }
  .values-grid { grid-template-columns: 1fr 1fr; }

  .portfolio-grid { grid-template-columns: 1fr 1fr; }

  .testimonials-grid { grid-template-columns: 1fr; max-width: 560px; margin: 0 auto; }

  .contact-container { grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* Mobile: 768px */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .btn-sm.nav-btn { display: none; }
  .hamburger { display: flex; }
  .nav-actions .btn { display: none; }
  .nav-actions .theme-toggle { display: flex; }

  .hero-title { font-size: clamp(2rem, 8vw, 3rem); }
  .hero-stats { gap: var(--space-4); }
  .stat-divider { display: none; }

  .services-grid { max-width: 100%; }

  .portfolio-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto var(--space-12); }

  .form-row { grid-template-columns: 1fr; }
  .contact-form-wrap { padding: var(--space-5); }

  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }

  .back-to-top { bottom: var(--space-5); right: var(--space-5); }
}

/* Small Mobile: 480px */
@media (max-width: 480px) {
  :root { --container-pad: 1rem; }

  .hero { padding: var(--space-24) 0 var(--space-16); }
  .hero-actions { flex-direction: column; align-items: stretch; text-align: center; }
  .hero-stats { padding: var(--space-4); }

  .section-title { font-size: 1.75rem; }

  .values-grid { grid-template-columns: 1fr; }

  .about-actions { flex-direction: column; }

  .portfolio-filters { gap: var(--space-1); }
  .filter-btn { padding: var(--space-2) var(--space-3); font-size: 0.8125rem; }
}

/* === 19. PRINT STYLES === */
@media print {
  .navbar, .hero-bg, .cursor-glow, .back-to-top,
  .tech-strip, .scroll-indicator { display: none !important; }
  body { background: white; color: black; }
  .text-gradient, .title-gradient { -webkit-text-fill-color: var(--purple-700); }
}