/* ============================================
   SANDEEP SAKA — FUTURISTIC PORTFOLIO
   Glassmorphism | 3D | Neon | Award-Winning
   ============================================ */

/* === CSS Custom Properties === */
:root {
  --bg-primary: #050508;
  --bg-secondary: #0a0a14;
  --bg-tertiary: #111122;
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-bg-hover: rgba(255, 255, 255, 0.06);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-border-hover: rgba(255, 255, 255, 0.15);
  --text-primary: #f0f0f5;
  --text-secondary: #a0a0b8;
  --text-muted: #6a6a80;
  --accent-cyan: #00f0ff;
  --accent-purple: #a855f7;
  --accent-pink: #ff006e;
  --accent-blue: #3b82f6;
  --accent-green: #10b981;
  --gradient-1: linear-gradient(135deg, #00f0ff, #a855f7);
  --gradient-2: linear-gradient(135deg, #a855f7, #ff006e);
  --gradient-3: linear-gradient(135deg, #00f0ff, #ff006e);
  --gradient-text: linear-gradient(135deg, #00f0ff, #a855f7, #ff006e);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.5);
  --shadow-glow-cyan: 0 0 20px rgba(0, 240, 255, 0.3);
  --shadow-glow-purple: 0 0 20px rgba(168, 85, 247, 0.3);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --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-bounce: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --nav-height: 80px;
  --container-max: 1280px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

ul { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea { font-family: inherit; }

::selection {
  background: rgba(0, 240, 255, 0.3);
  color: #fff;
}

/* === Scrollbar === */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--accent-cyan), var(--accent-purple));
  border-radius: 4px;
}

/* === Utility Classes === */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

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

.highlight {
  color: var(--accent-cyan);
  font-weight: 500;
}

/* === Custom Cursor === */
.cursor-dot,
.cursor-ring {
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 9999;
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.cursor-dot {
  width: 8px;
  height: 8px;
  background: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
}

.cursor-ring {
  width: 40px;
  height: 40px;
  border: 2px solid rgba(0, 240, 255, 0.4);
  transition: width 0.3s, height 0.3s, border-color 0.3s;
}

.cursor-ring.hover {
  width: 60px;
  height: 60px;
  border-color: rgba(168, 85, 247, 0.6);
}

@media (hover: none), (pointer: coarse) {
  .cursor-dot, .cursor-ring { display: none; }
}

/* === Scroll Progress === */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--gradient-1);
  z-index: 10000;
  width: 0%;
  transition: width 0.1s linear;
  box-shadow: 0 0 10px var(--accent-cyan);
}

/* === Particle Canvas === */
#particle-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* === Noise Overlay === */
.noise-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* === Navigation === */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  transition: background 0.3s, backdrop-filter 0.3s, box-shadow 0.3s;
}

.nav.scrolled {
  background: rgba(5, 5, 8, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-mark {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-1);
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  color: #fff;
  box-shadow: var(--shadow-glow-cyan);
}

.logo-text {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  color: var(--text-primary);
}

.logo-accent {
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: 36px;
}

.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 4px 0;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-1);
  border-radius: 1px;
  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%;
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-1);
  color: #fff;
  box-shadow: 0 4px 20px rgba(0, 240, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 240, 255, 0.5);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s;
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-ghost {
  background: var(--glass-bg);
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
}

.btn-ghost:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 16px;
}

.btn-full {
  width: 100%;
  justify-content: center;
}

.btn-nav {
  padding: 10px 22px;
  font-size: 14px;
}



/* === Mobile Nav Toggle === */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  z-index: 1001;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: all var(--transition-smooth);
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* === Mobile Menu === */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(5, 5, 8, 0.95);
  backdrop-filter: blur(30px);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 40px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}

.mobile-menu.open {
  opacity: 1;
  visibility: visible;
}

.mobile-menu-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}

.mobile-link {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.mobile-link:hover {
  color: var(--accent-cyan);
}

.mobile-cta {
  font-size: 16px;
}

/* === Hero Section === */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: calc(var(--nav-height) + 40px) 24px 80px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  animation: orbFloat 20s ease-in-out infinite;
}

.orb-1 {
  width: 500px;
  height: 500px;
  background: var(--accent-cyan);
  top: -10%;
  right: -5%;
  animation-delay: 0s;
}

.orb-2 {
  width: 400px;
  height: 400px;
  background: var(--accent-purple);
  bottom: -10%;
  left: -5%;
  animation-delay: -7s;
}

.orb-3 {
  width: 300px;
  height: 300px;
  background: var(--accent-pink);
  top: 40%;
  left: 30%;
  animation-delay: -14s;
  opacity: 0.2;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(30px, -30px) scale(1.05); }
  50% { transform: translate(-20px, 20px) scale(0.95); }
  75% { transform: translate(20px, 30px) scale(1.02); }
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 30%, transparent 70%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 32px;
  backdrop-filter: blur(10px);
}

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

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
  50% { opacity: 0.7; box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(42px, 7vw, 80px);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.hero-title-line {
  display: block;
}

.hero-title em {
  font-style: normal;
  background: var(--gradient-2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-subtitle strong {
  color: var(--text-primary);
}

.hero-cta-group {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

.hero-stats {
  display: flex;
  gap: 48px;
  justify-content: center;
  flex-wrap: wrap;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 42px;
  font-weight: 700;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-suffix {
  font-family: var(--font-display);
  font-size: 42px;
  font-weight: 700;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  display: block;
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  z-index: 2;
}

.scroll-text {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, var(--accent-cyan), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

@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; }
}

/* === Section Styles === */
.section {
  padding: 120px 0;
  position: relative;
  z-index: 2;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-overline {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 16px;
  padding: 6px 16px;
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid rgba(0, 240, 255, 0.15);
  border-radius: 50px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-desc {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
}

/* === About Section === */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-visual {
  position: relative;
}

.about-image-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.about-image {
  width: 100%;
  height: 480px;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

.about-image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.15), rgba(168, 85, 247, 0.15));
  border-radius: var(--radius-lg);
}

.about-float-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  background: rgba(10, 10, 20, 0.8);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  box-shadow: var(--shadow-md);
  animation: floatCard 6s ease-in-out infinite;
}

.float-card-1 { top: 20px; right: -20px; animation-delay: 0s; }
.float-card-2 { bottom: 60px; left: -20px; animation-delay: -2s; }
.float-card-3 { bottom: 20px; right: 30px; animation-delay: -4s; }

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

.float-card-icon {
  font-size: 18px;
}

.about-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.about-lead {
  font-size: 20px;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.6;
}

.about-text {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 8px;
}

.tag {
  padding: 8px 16px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.tag:hover {
  background: rgba(0, 240, 255, 0.1);
  border-color: rgba(0, 240, 255, 0.3);
  color: var(--accent-cyan);
}

/* === Expertise Section === */
.expertise-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.expertise-card {
  position: relative;
  padding: 36px 28px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px);
  transition: all var(--transition-smooth);
  transform-style: preserve-3d;
  perspective: 1000px;
  overflow: hidden;
}

.expertise-card:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.card-glow {
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at center, rgba(0, 240, 255, 0.08), transparent 60%);
  opacity: 0;
  transition: opacity var(--transition-smooth);
  pointer-events: none;
}

.expertise-card:hover .card-glow {
  opacity: 1;
}

.card-icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-1);
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  color: #fff;
  box-shadow: var(--shadow-glow-cyan);
}

.card-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
}

.card-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.card-tags span {
  padding: 4px 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  font-size: 12px;
  color: var(--text-muted);
}

/* === Projects Section === */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.project-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  backdrop-filter: blur(20px);
  transition: all var(--transition-smooth);
  transform-style: preserve-3d;
  perspective: 1000px;
}

.project-card:hover {
  border-color: var(--glass-border-hover);
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.project-image-wrapper {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
}

.project-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card:hover .project-image {
  transform: scale(1.08);
}

.project-overlay {
  position: absolute;
  inset: 0;
  background: rgba(5, 5, 8, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-smooth);
}

.project-card:hover .project-overlay {
  opacity: 1;
}

.project-link {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-1);
  border-radius: 50%;
  color: #fff;
  transform: scale(0.5);
  transition: transform var(--transition-bounce);
  box-shadow: var(--shadow-glow-cyan);
}

.project-card:hover .project-link {
  transform: scale(1);
}

.project-content {
  padding: 24px;
}

.project-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.project-category {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.project-year {
  font-size: 13px;
  color: var(--text-muted);
}

.project-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 10px;
}

.project-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.project-tags span {
  padding: 4px 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  font-size: 12px;
  color: var(--text-muted);
}



/* === Contact Section === */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-info-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  backdrop-filter: blur(20px);
  transition: all var(--transition-smooth);
}

.contact-info-card:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
}

.contact-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-1);
  border-radius: var(--radius-sm);
  color: #fff;
  flex-shrink: 0;
}



.contact-info-card h4 {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 2px;
}

.contact-info-card a,
.contact-info-card p {
  font-size: 14px;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.contact-info-card a:hover {
  color: var(--accent-cyan);
}

.contact-socials {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}

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

.social-link:hover {
  background: var(--gradient-1);
  color: #fff;
  border-color: transparent;
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow-cyan);
}

/* === Contact Form === */
.contact-form {
  position: relative;
  padding: 40px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px);
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 15px;
  transition: all var(--transition-fast);
  outline: none;
}

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

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.1);
  background: rgba(255, 255, 255, 0.06);
}

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

.form-error {
  display: block;
  font-size: 13px;
  color: var(--accent-pink);
  margin-top: 6px;
  min-height: 18px;
}

.form-success {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: rgba(5, 5, 8, 0.95);
  border-radius: var(--radius-lg);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-smooth);
  text-align: center;
  padding: 40px;
}

.form-success.show {
  opacity: 1;
  visibility: visible;
}

.form-success svg {
  color: var(--accent-green);
}

.form-success h4 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
}

.form-success p {
  color: var(--text-secondary);
  font-size: 15px;
}

/* === Footer === */
.footer {
  position: relative;
  z-index: 2;
  border-top: 1px solid var(--glass-border);
  padding: 60px 0 0;
  background: rgba(5, 5, 8, 0.5);
  backdrop-filter: blur(20px);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-brand .nav-logo {
  margin-bottom: 16px;
}

.footer-tagline {
  font-size: 15px;
  color: var(--text-secondary);
  max-width: 300px;
  line-height: 1.6;
}

.footer-links h5,
.footer-contact h5 {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--accent-cyan);
}

.footer-contact a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.footer-contact a:hover {
  color: var(--accent-cyan);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  border-top: 1px solid var(--glass-border);
  font-size: 14px;
  color: var(--text-muted);
}

/* === Back to Top === */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  color: var(--text-secondary);
  backdrop-filter: blur(20px);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-smooth);
}

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

.back-to-top:hover {
  background: var(--gradient-1);
  color: #fff;
  border-color: transparent;
  box-shadow: var(--shadow-glow-cyan);
}

/* === Reveal Animations === */
.reveal-element {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-element.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* === Responsive Design === */
@media (max-width: 1024px) {
  .expertise-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .about-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .about-image {
    height: 360px;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .footer-content {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 70px;
  }
  .nav-links,
  .btn-nav {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .section {
    padding: 80px 0;
  }
  .hero-stats {
    gap: 32px;
  }
  .stat-number,
  .stat-suffix {
    font-size: 32px;
  }
  .expertise-grid {
    grid-template-columns: 1fr;
  }
  .projects-grid {
    grid-template-columns: 1fr;
  }
  .hero-cta-group {
    flex-direction: column;
    align-items: center;
  }
  .hero-cta-group .btn {
    width: 100%;
    max-width: 320px;
    justify-content: center;
  }
  .contact-form {
    padding: 28px 20px;
  }
  .footer-content {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
  .float-card-1 { right: 10px; }
  .float-card-2 { left: 10px; }
  .float-card-3 { right: 10px; }
  .timeline {
    padding-left: 28px;
  }
  .timeline-line {
    left: 11px;
  }
  .timeline-dot {
    left: -25px;
  }
  .timeline-content {
    padding: 20px 24px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 36px;
  }
  .hero-subtitle {
    font-size: 15px;
  }
  .section-title {
    font-size: 28px;
  }
  .about-image {
    height: 280px;
  }
  .expertise-card {
    padding: 28px 20px;
  }
  .project-content {
    padding: 20px;
  }
}

/* === 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;
  }
  .reveal-element {
    opacity: 1;
    transform: none;
  }
}