/* ==========================================================================
   Mohamed Omar Portfolio — Premium Dark Theme
   Architecture: CSS Custom Properties + Mobile-First + GPU-Optimized Animations
   ========================================================================== */

/* --- Design Tokens --- */
:root {
  --bg-deep: #050505;
  --bg-surface: #0a0a0f;
  --bg-elevated: #111118;
  --bg-glass: rgba(255, 255, 255, 0.03);
  --bg-glass-hover: rgba(255, 255, 255, 0.06);
  --border-glass: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(99, 102, 241, 0.4);

  --text-primary: #f4f4f5;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;

  --accent-blue: #3b82f6;
  --accent-purple: #8b5cf6;
  --accent-cyan: #06b6d4;
  --gradient-primary: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 50%, #06b6d4 100%);
  --gradient-text: linear-gradient(135deg, #60a5fa, #a78bfa, #22d3ee);
  --gradient-mesh: radial-gradient(ellipse at 20% 30%, rgba(59, 130, 246, 0.15), transparent 50%),
    radial-gradient(ellipse at 80% 70%, rgba(139, 92, 246, 0.12), transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(6, 182, 212, 0.08), transparent 60%);

  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Syne', 'Inter', sans-serif;

  --space-xs: clamp(0.5rem, 1vw, 0.75rem);
  --space-sm: clamp(0.75rem, 1.5vw, 1rem);
  --space-md: clamp(1rem, 2vw, 1.5rem);
  --space-lg: clamp(1.5rem, 3vw, 2.5rem);
  --space-xl: clamp(2rem, 5vw, 4rem);
  --space-2xl: clamp(3rem, 8vw, 6rem);

  --text-xs: clamp(0.75rem, 1.5vw, 0.875rem);
  --text-sm: clamp(0.875rem, 1.8vw, 1rem);
  --text-base: clamp(1rem, 2vw, 1.125rem);
  --text-lg: clamp(1.125rem, 2.5vw, 1.375rem);
  --text-xl: clamp(1.5rem, 4vw, 2rem);
  --text-2xl: clamp(2rem, 5vw, 3rem);
  --text-hero: clamp(2.5rem, 8vw, 4.5rem);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  --shadow-glow: 0 0 60px rgba(99, 102, 241, 0.25);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);

  --header-height: 72px;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);

  --container: min(1200px, 92vw);
  --z-loader: 10000;
  --z-cursor: 9999;
  --z-header: 1000;
  --z-modal: 2000;
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html.lenis,
html.lenis body {
  height: auto;
}

.lenis.lenis-smooth {
  scroll-behavior: auto !important;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-deep);
  overflow-x: hidden;
  cursor: none;
}

body.loaded {
  overflow-x: hidden;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-md);
  z-index: calc(var(--z-loader) + 1);
  padding: 0.75rem 1rem;
  background: var(--accent-purple);
  color: white;
  border-radius: var(--radius-md);
  font-weight: 600;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-md);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  cursor: none;
  border: none;
  background: none;
  color: inherit;
}

ul {
  list-style: none;
}

.container {
  width: var(--container);
  margin-inline: auto;
}

.section {
  padding-block: var(--space-2xl);
  position: relative;
}

.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.glass {
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
}

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

  html {
    scroll-behavior: auto;
  }

  body {
    cursor: auto;
  }

  .cursor-dot,
  .cursor-ring,
  .mouse-glow {
    display: none !important;
  }

  button,
  a {
    cursor: pointer;
  }
}

/* Touch devices — disable custom cursor */
@media (hover: none), (pointer: coarse) {
  body,
  button,
  a {
    cursor: auto;
  }

  .cursor-dot,
  .cursor-ring,
  .mouse-glow {
    display: none !important;
  }
}

/* --- Loader --- */
.loader {
  position: fixed;
  inset: 0;
  z-index: var(--z-loader);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-deep);
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

.loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-inner {
  text-align: center;
}

.loader-logo {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: var(--space-md);
  animation: pulse 1.5s ease-in-out infinite;
}

.loader-bar {
  width: 200px;
  height: 3px;
  background: var(--bg-elevated);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-inline: auto;
}

.loader-progress {
  display: block;
  height: 100%;
  width: 0%;
  background: var(--gradient-primary);
  border-radius: inherit;
  transition: width 0.1s linear;
}

.loader-text {
  margin-top: var(--space-sm);
  font-size: var(--text-xs);
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* --- Custom Cursor --- */
.cursor-dot,
.cursor-ring {
  position: fixed;
  pointer-events: none;
  z-index: var(--z-cursor);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  will-change: transform;
}

.cursor-dot {
  width: 6px;
  height: 6px;
  background: var(--accent-cyan);
  mix-blend-mode: difference;
}

.cursor-ring {
  width: 40px;
  height: 40px;
  border: 1px solid rgba(99, 102, 241, 0.5);
  transition: width 0.25s, height 0.25s, border-color 0.25s;
}

.cursor-ring.hover {
  width: 56px;
  height: 56px;
  border-color: var(--accent-purple);
}

.mouse-glow {
  position: fixed;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  transform: translate(-50%, -50%);
  will-change: transform;
}

/* --- Scroll Progress --- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: calc(var(--z-header) + 1);
  background: transparent;
}

.scroll-progress-bar {
  display: block;
  height: 100%;
  width: 0%;
  background: var(--gradient-primary);
  box-shadow: 0 0 12px rgba(99, 102, 241, 0.6);
  transition: width 0.05s linear;
}

/* --- Background Effects --- */
.particles-canvas {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
}

.blob {
  position: fixed;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  z-index: -1;
  pointer-events: none;
  animation: blobFloat 20s ease-in-out infinite;
}

.blob-1 {
  width: 500px;
  height: 500px;
  background: rgba(59, 130, 246, 0.2);
  top: -10%;
  left: -10%;
}

.blob-2 {
  width: 400px;
  height: 400px;
  background: rgba(139, 92, 246, 0.18);
  bottom: 20%;
  right: -5%;
  animation-delay: -7s;
}

.blob-3 {
  width: 350px;
  height: 350px;
  background: rgba(6, 182, 212, 0.15);
  top: 50%;
  left: 40%;
  animation-delay: -14s;
}

/* --- Header / Nav --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header);
  height: var(--header-height);
  transition: background var(--transition-smooth), backdrop-filter var(--transition-smooth);
}

.header.scrolled {
  background: rgba(5, 5, 5, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-glass);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-display);
  font-weight: 700;
}

.nav-logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--gradient-primary);
  font-size: var(--text-sm);
  color: white;
  -webkit-text-fill-color: white;
}

.nav-logo-text {
  display: none;
}

@media (min-width: 768px) {
  .nav-logo-text {
    display: inline;
    font-size: var(--text-sm);
  }
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  position: fixed;
  inset: 0;
  top: var(--header-height);
  flex-direction: column;
  justify-content: center;
  background: rgba(5, 5, 5, 0.98);
  backdrop-filter: blur(24px);
  transform: translateX(100%);
  transition: transform var(--transition-smooth);
  padding: var(--space-xl);
}

.nav-menu.open {
  transform: translateX(0);
}

@media (min-width: 992px) {
  .nav-menu {
    position: static;
    flex-direction: row;
    background: none;
    backdrop-filter: none;
    transform: none;
    padding: 0;
    gap: var(--space-lg);
  }
}

.nav-link {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

@media (min-width: 992px) {
  .nav-link {
    font-size: var(--text-sm);
  }
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-smooth);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-cta {
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
  color: white !important;
  -webkit-text-fill-color: white;
}

.nav-cta::after {
  display: none;
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 8px;
  z-index: 10;
}

@media (min-width: 992px) {
  .nav-toggle {
    display: none;
  }
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: transform var(--transition-smooth), opacity var(--transition-fast);
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: var(--text-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 24px rgba(99, 102, 241, 0.35);
}

.btn-primary:hover {
  box-shadow: var(--shadow-glow);
}

.btn-ghost {
  border: 1px solid var(--border-glass);
  background: var(--bg-glass);
}

.btn-ghost:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-glow);
}

.btn-resume {
  border: 1px solid rgba(139, 92, 246, 0.4);
  background: rgba(139, 92, 246, 0.1);
}

.btn-resume:hover {
  background: rgba(139, 92, 246, 0.2);
}

.btn-full {
  width: 100%;
}

.btn-icon {
  flex-shrink: 0;
}

/* --- Hero --- */
.hero {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  background: var(--gradient-mesh);
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  align-items: center;
  padding-block: var(--space-xl);
}

@media (min-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
  }
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--text-xs);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-md);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 12px #22c55e;
  animation: pulse 2s ease-in-out infinite;
}

.hero-title {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 800;
  line-height: 1.05;
  margin-bottom: var(--space-sm);
}

.hero-greeting {
  display: block;
  font-size: 0.35em;
  font-weight: 500;
  color: var(--text-secondary);
  -webkit-text-fill-color: var(--text-secondary);
  margin-bottom: 0.25em;
}

.hero-name {
  display: block;
}

.hero-role {
  font-size: var(--text-xl);
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  min-height: 2.5em;
}

.role-rotator {
  display: inline-block;
  color: var(--accent-cyan);
  font-weight: 600;
  border-right: 2px solid var(--accent-cyan);
  padding-right: 4px;
  animation: blink 0.8s step-end infinite;
}

.hero-tagline {
  color: var(--text-secondary);
  max-width: 520px;
  margin-bottom: var(--space-lg);
  font-size: var(--text-base);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.hero-social {
  display: flex;
  gap: var(--space-sm);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-glass);
  background: var(--bg-glass);
  transition: border-color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
}

.social-link svg {
  width: 20px;
  height: 20px;
}

.social-link:hover {
  border-color: var(--border-glow);
  background: var(--bg-glass-hover);
  transform: translateY(-2px);
}

/* Profile card */
.hero-visual {
  display: flex;
  justify-content: center;
  order: -1;
}

@media (min-width: 992px) {
  .hero-visual {
    order: 0;
  }
}

.profile-card {
  position: relative;
  width: min(320px, 85vw);
}

@media (min-width: 768px) {
  .profile-card {
    width: min(380px, 90vw);
  }
}

.profile-glow {
  position: absolute;
  inset: -20%;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.35), transparent 60%);
  filter: blur(40px);
  animation: glowPulse 4s ease-in-out infinite;
}

.profile-frame {
  position: relative;
  padding: 6px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  animation: float 6s ease-in-out infinite;
  box-shadow: var(--shadow-card), var(--shadow-glow);
}

.profile-frame::before {
  content: '';
  position: absolute;
  inset: 0;
  padding: 2px;
  border-radius: inherit;
  background: var(--gradient-primary);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.profile-image {
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
  border-radius: calc(var(--radius-xl) - 6px);
  transition: transform var(--transition-smooth);
}

.profile-frame:hover .profile-image {
  transform: scale(1.03);
}

.profile-badge {
  position: absolute;
  bottom: 12%;
  left: -8%;
  padding: 0.5rem 1rem;
  font-size: var(--text-xs);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  animation: float 5s ease-in-out infinite reverse;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: #22c55e;
  border-radius: 50%;
}

.profile-float-card {
  position: absolute;
  padding: 0.75rem 1rem;
  animation: float 7s ease-in-out infinite;
}

.float-card-1 {
  top: 8%;
  right: -12%;
  animation-delay: -2s;
}

.float-card-2 {
  top: 45%;
  left: -15%;
  animation-delay: -4s;
}

.float-label {
  display: block;
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.float-value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
}

.hero-scroll {
  position: absolute;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--text-xs);
  color: var(--text-muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--accent-purple), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

/* --- Section Headers --- */
.section-header {
  text-align: center;
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: var(--space-xl);
}

.section-label {
  display: inline-block;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent-cyan);
  margin-bottom: var(--space-sm);
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  line-height: 1.2;
}

/* --- About --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  align-items: center;
  margin-bottom: var(--space-xl);
}

@media (min-width: 768px) {
  .about-grid {
    grid-template-columns: 0.9fr 1.1fr;
  }
}

.about-image-card {
  position: relative;
  overflow: hidden;
  max-width: 360px;
  margin-inline: auto;
}

.about-image {
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
}

.about-image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(5, 5, 5, 0.6), transparent 40%);
  pointer-events: none;
}

.about-lead {
  font-size: var(--text-lg);
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.about-content p {
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.about-highlights {
  margin-bottom: var(--space-lg);
}

.about-highlights li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.about-highlights li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent-cyan);
}

.about-meta {
  display: grid;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.meta-label {
  display: block;
  font-size: var(--text-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.meta-value {
  font-weight: 500;
}

.about-resume-btn {
  margin-top: var(--space-sm);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

@media (min-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.stat-card {
  padding: var(--space-lg);
  text-align: center;
  transition: transform var(--transition-smooth), border-color var(--transition-fast);
}

.stat-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-glow);
}

.stat-number {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-suffix,
.stat-decimal {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-label {
  margin-top: 0.25rem;
  font-size: var(--text-sm);
  color: var(--text-muted);
}

/* --- Skills --- */
.skills-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

@media (min-width: 600px) {
  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .skills-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.skill-card {
  padding: var(--space-lg);
  transition: transform var(--transition-smooth), border-color var(--transition-fast), box-shadow var(--transition-smooth);
}

.skill-card:hover {
  transform: translateY(-6px) scale(1.01);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}

.skill-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: rgba(99, 102, 241, 0.15);
  margin-bottom: var(--space-md);
  transition: transform var(--transition-spring);
}

.skill-card:hover .skill-icon {
  transform: rotate(-8deg) scale(1.1);
}

.skill-icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--accent-cyan);
}

.skill-name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  margin-bottom: 0.35rem;
}

.skill-desc {
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.skill-bar {
  height: 4px;
  background: var(--bg-elevated);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: 0.35rem;
}

.skill-progress {
  display: block;
  height: 100%;
  width: 0%;
  background: var(--gradient-primary);
  border-radius: inherit;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.skill-percent {
  font-size: var(--text-xs);
  color: var(--accent-cyan);
  font-weight: 600;
}

.soft-skills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
  margin-top: var(--space-xl);
}

.soft-tag {
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  border: 1px solid var(--border-glass);
  background: var(--bg-glass);
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.soft-tag:hover {
  border-color: var(--border-glow);
  transform: translateY(-2px);
}

/* --- Projects --- */
.project-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.filter-btn {
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  border: 1px solid var(--border-glass);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--gradient-primary);
  color: white;
  border-color: transparent;
}

.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

@media (min-width: 768px) {
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1100px) {
  .projects-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.project-card {
  overflow: hidden;
  transition: transform var(--transition-smooth), opacity var(--transition-smooth);
}

.project-card.hidden-filter {
  display: none;
}

.project-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-glow);
}

.project-visual {
  position: relative;
  height: 180px;
  background: linear-gradient(135deg, #1e1b4b, #0f172a);
  overflow: hidden;
}

.project-visual-2 {
  background: linear-gradient(135deg, #0c4a6e, #0f172a);
}

.project-visual-3 {
  background: linear-gradient(135deg, #4c1d95, #0f172a);
}

.project-mesh {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 40%, rgba(99, 102, 241, 0.4), transparent 50%),
    radial-gradient(circle at 70% 60%, rgba(6, 182, 212, 0.3), transparent 50%);
  transition: transform 0.6s ease;
}

.project-card:hover .project-mesh {
  transform: scale(1.1);
}

.project-category {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-full);
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(8px);
}

.project-body {
  padding: var(--space-lg);
}

.project-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  margin-bottom: 0.5rem;
}

.project-desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: var(--space-md);
}

.project-tags li {
  font-size: var(--text-xs);
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-full);
  background: var(--bg-elevated);
  color: var(--text-muted);
}

.project-btn {
  width: 100%;
  padding: 0.75rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-glass);
  font-weight: 600;
  font-size: var(--text-sm);
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.project-btn:hover {
  background: rgba(99, 102, 241, 0.15);
  border-color: var(--border-glow);
}

/* --- Timeline --- */
.timeline {
  position: relative;
  max-width: 800px;
  margin-inline: auto;
  padding-left: var(--space-lg);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-blue), var(--accent-purple), transparent);
}

.timeline-item {
  position: relative;
  margin-bottom: var(--space-xl);
  padding-left: var(--space-lg);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-lg) - 5px);
  top: 1.5rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--gradient-primary);
  box-shadow: 0 0 16px rgba(99, 102, 241, 0.6);
}

.timeline-card {
  padding: var(--space-lg);
  transition: transform var(--transition-smooth), border-color var(--transition-fast);
}

.timeline-card:hover {
  transform: translateX(8px);
  border-color: var(--border-glow);
}

.timeline-date {
  display: inline-block;
  font-size: var(--text-xs);
  color: var(--accent-cyan);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.timeline-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  margin-bottom: 0.25rem;
}

.timeline-org {
  font-size: var(--text-sm);
  color: var(--accent-purple);
  margin-bottom: 0.5rem;
}

.timeline-desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

/* --- Testimonials --- */
.testimonial-slider {
  max-width: 720px;
  margin-inline: auto;
  position: relative;
}

.testimonial-track {
  position: relative;
  min-height: 280px;
}

.testimonial-card {
  position: absolute;
  inset: 0;
  padding: var(--space-xl);
  opacity: 0;
  transform: translateX(40px) scale(0.96);
  transition: opacity 0.5s ease, transform 0.5s ease;
  pointer-events: none;
}

.testimonial-card.active {
  position: relative;
  opacity: 1;
  transform: translateX(0) scale(1);
  pointer-events: auto;
}

.testimonial-stars {
  color: #fbbf24;
  font-size: var(--text-sm);
  margin-bottom: var(--space-md);
  letter-spacing: 0.1em;
}

.testimonial-text {
  font-size: var(--text-lg);
  line-height: 1.7;
  color: var(--text-secondary);
  font-style: italic;
  margin-bottom: var(--space-lg);
}

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

.author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--text-sm);
  background: var(--gradient-primary);
}

.author-name {
  font-style: normal;
  font-weight: 600;
  display: block;
}

.author-role {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.testimonial-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.testimonial-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border-glass);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.testimonial-btn:hover {
  border-color: var(--border-glow);
  background: var(--bg-glass-hover);
}

.testimonial-dots {
  display: flex;
  gap: 0.5rem;
}

.testimonial-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
  border: none;
  padding: 0;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.testimonial-dot.active {
  background: var(--accent-purple);
  transform: scale(1.3);
}

/* --- Services --- */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

@media (min-width: 600px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.service-card {
  padding: var(--space-xl);
  text-align: center;
  transition: transform var(--transition-smooth), border-color var(--transition-fast);
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
}

.service-icon-wrap {
  width: 64px;
  height: 64px;
  margin-inline: auto;
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  background: rgba(99, 102, 241, 0.12);
  transition: transform var(--transition-spring);
}

.service-card:hover .service-icon-wrap {
  transform: scale(1.1) rotate(5deg);
}

.service-icon {
  width: 32px;
  height: 32px;
  stroke: var(--accent-cyan);
}

.service-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  margin-bottom: 0.5rem;
}

.service-desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

/* --- Contact --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

@media (min-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr 1.2fr;
  }
}

.contact-lead {
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
}

.contact-list {
  margin-bottom: var(--space-lg);
}

.contact-list li {
  margin-bottom: var(--space-sm);
}

.contact-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.contact-link:hover {
  color: var(--text-primary);
}

.contact-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  font-size: var(--text-sm);
}

.contact-social .social-link {
  width: auto;
  height: auto;
  padding: 0.6rem 1.2rem;
  font-size: var(--text-sm);
  font-weight: 600;
}

.contact-form {
  padding: var(--space-xl);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  font-size: var(--text-sm);
  margin-bottom: 0.35rem;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-glass);
  background: var(--bg-elevated);
  color: var(--text-primary);
  font: inherit;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--border-glow);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.form-group input.error,
.form-group textarea.error {
  border-color: #ef4444;
}

.form-error {
  display: block;
  font-size: var(--text-xs);
  color: #ef4444;
  margin-top: 0.25rem;
  min-height: 1rem;
}

.form-success {
  margin-top: var(--space-md);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: #4ade80;
  font-size: var(--text-sm);
}

/* --- Modal --- */
.modal {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal.open {
  opacity: 1;
  visibility: visible;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
}

.modal-content {
  position: relative;
  max-width: 560px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  padding: var(--space-xl);
  transform: translateY(24px) scale(0.96);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

.modal-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  width: 40px;
  height: 40px;
  font-size: 1.5rem;
  border-radius: 50%;
  border: 1px solid var(--border-glass);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast);
}

.modal-close:hover {
  background: var(--bg-glass-hover);
}

.modal-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  margin-bottom: var(--space-md);
  padding-right: 2rem;
}

.modal-body {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  line-height: 1.7;
}

.modal-body ul {
  margin-top: var(--space-md);
}

.modal-body li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: 0.5rem;
}

.modal-body li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--accent-cyan);
}

/* --- Footer --- */
.footer {
  position: relative;
  padding-block: var(--space-xl);
  border-top: 1px solid var(--border-glass);
  overflow: hidden;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-lg);
}

@media (min-width: 768px) {
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer-logo {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
}

.footer-tagline {
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
}

.footer-nav a {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.footer-nav a:hover {
  color: var(--text-primary);
}

.footer-copy {
  font-size: var(--text-xs);
  color: var(--text-muted);
  width: 100%;
  text-align: center;
}

@media (min-width: 768px) {
  .footer-copy {
    width: auto;
    text-align: right;
  }
}

.footer-glow {
  position: absolute;
  bottom: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 200px;
  background: radial-gradient(ellipse, rgba(99, 102, 241, 0.15), transparent 70%);
  pointer-events: none;
}

/* --- Reveal Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-group .reveal:nth-child(1) { transition-delay: 0s; }
.reveal-group .reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal-group .reveal:nth-child(3) { transition-delay: 0.15s; }
.reveal-group .reveal:nth-child(4) { transition-delay: 0.2s; }
.reveal-group .reveal:nth-child(5) { transition-delay: 0.25s; }
.reveal-group .reveal:nth-child(6) { transition-delay: 0.3s; }

.reveal[data-delay="1"] { transition-delay: 0.1s; }
.reveal[data-delay="2"] { transition-delay: 0.2s; }
.reveal[data-delay="3"] { transition-delay: 0.3s; }
.reveal[data-delay="4"] { transition-delay: 0.4s; }
.reveal[data-delay="5"] { transition-delay: 0.5s; }

/* Stagger children in reveal-group */
.reveal-group > .stat-card,
.reveal-group > .skill-card,
.reveal-group > .project-card,
.reveal-group > .service-card {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-group.visible > .stat-card,
.reveal-group.visible > .skill-card,
.reveal-group.visible > .project-card,
.reveal-group.visible > .service-card {
  opacity: 1;
  transform: translateY(0);
}

.reveal-group.visible > *:nth-child(1) { transition-delay: 0.05s; }
.reveal-group.visible > *:nth-child(2) { transition-delay: 0.1s; }
.reveal-group.visible > *:nth-child(3) { transition-delay: 0.15s; }
.reveal-group.visible > *:nth-child(4) { transition-delay: 0.2s; }
.reveal-group.visible > *:nth-child(5) { transition-delay: 0.25s; }
.reveal-group.visible > *:nth-child(6) { transition-delay: 0.3s; }

/* --- Keyframes --- */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes blink {
  50% { border-color: transparent; }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

@keyframes blobFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

@keyframes glowPulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* Parallax helper */
[data-parallax] {
  will-change: transform;
}