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

:root {
  --blue-900: #0a1628;
  --blue-800: #0d1f3c;
  --blue-700: #102a52;
  --blue-600: #1a3a6b;
  --blue-500: #1e4d8c;
  --blue-400: #2563b0;
  --blue-300: #3b82f6;
  --blue-200: #60a5fa;
  --blue-100: #bfdbfe;
  --sky-500: #0ea5e9;
  --sky-400: #38bdf8;
  --sky-300: #7dd3fc;
  --white:   #ffffff;
  --slate-50:  #f8fafc;
  --slate-100: #f1f5f9;
  --slate-200: #e2e8f0;
  --slate-300: #cbd5e1;
  --slate-400: #94a3b8;
  --slate-500: #64748b;
  --slate-600: #475569;
  --slate-700: #334155;
  --slate-800: #1e293b;
  --slate-900: #0f172a;
  --success: #22c55e;
  --warning: #f59e0b;
  --error:   #ef4444;
  --glass-bg: rgba(255,255,255,0.06);
  --glass-border: rgba(255,255,255,0.12);
  --glass-shadow: 0 8px 32px rgba(0,0,0,0.3);
  --font-primary: 'Space Grotesk', sans-serif;
  --font-secondary: 'Inter', sans-serif;
  --transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-fast: 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --radius: 20px;
  --radius-sm: 12px;
  --radius-lg: 32px;
  --spacing: 8px;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-secondary);
  background: var(--blue-900);
  color: var(--slate-100);
  overflow-x: hidden;
  line-height: 1.6;
  cursor: none;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.menu-open { overflow: hidden; }

/* GPU acceleration for transformed/animated elements */
.hero-canvas, .profile-frame, .float-card, .portfolio-card,
.service-card, .stat-card, .tool-card, .swiper-slide,
.scroll-progress, .back-to-top, .cursor, .cursor-follower,
.nav, .mobile-menu, .loader {
  transform: translateZ(0);
  backface-visibility: hidden;
}

/* Contain layout/paint to isolated sections */
.section, .hero, .nav, .footer { contain: layout style; }
.stats, .testimonials { contain: layout style paint; }

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

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button { background: none; border: none; cursor: none; font-family: inherit; }

/* ============================================================
   CUSTOM CURSOR
   ============================================================ */
.cursor {
  position: fixed;
  width: 10px;
  height: 10px;
  background: var(--blue-300);
  border-radius: 50%;
  pointer-events: none;
  z-index: 10000;
  transform: translate(-50%, -50%);
  transition: transform 0.1s, background 0.2s, width 0.3s, height 0.3s;
  mix-blend-mode: normal;
}

.cursor-follower {
  position: fixed;
  width: 40px;
  height: 40px;
  border: 1.5px solid rgba(59,130,246,0.5);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: transform 0.15s ease-out, width 0.4s, height 0.4s, border-color 0.4s;
}

.cursor.hovered {
  width: 20px;
  height: 20px;
  background: var(--sky-400);
}
.cursor-follower.hovered {
  width: 60px;
  height: 60px;
  border-color: var(--sky-400);
}

@media (max-width: 768px) {
  .cursor, .cursor-follower { display: none; }
  body { cursor: auto; }
  button { cursor: pointer; }
  a { cursor: pointer; }
}

/* ============================================================
   SCROLL PROGRESS
   ============================================================ */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--blue-300), var(--sky-400));
  z-index: 9999;
  transition: width 0.1s linear;
  border-radius: 0 2px 2px 0;
}

/* ============================================================
   LOADER
   ============================================================ */
.loader {
  position: fixed;
  inset: 0;
  background: var(--blue-900);
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}

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

.loader-logo {
  font-family: var(--font-primary);
  font-size: 4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 2rem;
}

.loader-logo .loader-h {
  color: var(--white);
}
.loader-logo .loader-r {
  color: var(--blue-300);
}

.loader-bar {
  width: 200px;
  height: 2px;
  background: rgba(255,255,255,0.1);
  border-radius: 2px;
  margin: 0 auto 1rem;
  overflow: hidden;
}

.loader-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--blue-300), var(--sky-400));
  border-radius: 2px;
  transition: width 0.05s linear;
}

.loader-text {
  color: var(--slate-400);
  font-size: 0.875rem;
  font-family: var(--font-primary);
  letter-spacing: 0.05em;
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.25rem 0;
  transition: background var(--transition), padding var(--transition), backdrop-filter var(--transition);
}

.nav.scrolled {
  background: rgba(10, 22, 40, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 0.875rem 0;
  border-bottom: 1px solid var(--glass-border);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-primary);
}

.logo-mark {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--blue-400), var(--sky-500));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--white);
  letter-spacing: 0.05em;
}

.logo-text {
  font-weight: 600;
  font-size: 1rem;
  color: var(--white);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--slate-300);
  position: relative;
  transition: color var(--transition-fast);
  font-family: var(--font-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--blue-300);
  transition: width var(--transition-fast);
  border-radius: 2px;
}

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

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

.nav-cta {
  font-family: var(--font-primary);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.625rem 1.5rem;
  background: linear-gradient(135deg, var(--blue-400), var(--sky-500));
  border-radius: 100px;
  color: var(--white);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  white-space: nowrap;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(37,99,176,0.4);
}

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition-fast);
}

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

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10,22,40,0.98);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 999;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.mobile-menu.open {
  opacity: 1;
  pointer-events: all;
}

.mobile-menu ul {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.mobile-link {
  font-family: var(--font-primary);
  font-size: 2rem;
  font-weight: 700;
  color: var(--slate-300);
  transition: color var(--transition-fast), transform var(--transition-fast);
}
.mobile-link:hover { color: var(--blue-300); transform: translateX(8px); }

/* ============================================================
   SECTION COMMONS
   ============================================================ */
.section { padding: 7rem 0; position: relative; }

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Fluid responsive widths for large/ultra-wide screens */
@media (min-width: 1600px) {
  .container { max-width: 1500px; padding: 0 2.5rem; }
  .hero-container { max-width: 1500px; padding: 0 2.5rem; }
}

@media (min-width: 1920px) {
  .container { max-width: 1700px; padding: 0 3rem; }
  .hero-container { max-width: 1700px; padding: 0 3rem; }
  .nav-container { max-width: 1700px; padding: 0 3rem; }
  .footer-inner { max-width: 1700px; padding: 0 3rem; }
}

@media (min-width: 2400px) {
  .container { max-width: 2000px; padding: 0 3.5rem; }
  .hero-container { max-width: 2000px; padding: 0 3.5rem; gap: 6rem; }
  .nav-container { max-width: 2000px; padding: 0 3.5rem; }
  .footer-inner { max-width: 2000px; padding: 0 3.5rem; }
  .section { padding: 8rem 0; }
  .section-header { margin-bottom: 6rem; }
}

@media (min-width: 3000px) {
  .container { max-width: 2400px; padding: 0 4rem; }
  .hero-container { max-width: 2400px; padding: 0 4rem; gap: 7rem; }
  .nav-container { max-width: 2400px; padding: 0 4rem; }
  .footer-inner { max-width: 2400px; padding: 0 4rem; }
  .section { padding: 9rem 0; }
  :root { --radius: 24px; --radius-lg: 40px; }
}

.section-header {
  text-align: center;
  margin-bottom: 5rem;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-primary);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--sky-400);
  background: rgba(14,165,233,0.1);
  border: 1px solid rgba(14,165,233,0.2);
  padding: 0.375rem 1rem;
  border-radius: 100px;
  margin-bottom: 1.25rem;
}

.section-title {
  font-family: var(--font-primary);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--white);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.section-desc {
  font-size: 1.0625rem;
  color: var(--slate-400);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

.text-accent { color: var(--blue-300); }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  font-family: var(--font-primary);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 0.875rem 2rem;
  border-radius: 100px;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--blue-400), var(--sky-500));
  color: var(--white);
  box-shadow: 0 4px 16px rgba(37,99,176,0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(37,99,176,0.45);
}

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

.btn-ghost:hover {
  transform: translateY(-3px);
  border-color: var(--blue-300);
  box-shadow: 0 8px 24px rgba(59,130,246,0.2);
}

/* Magnetic effect */
.magnetic { display: inline-flex; }

/* ============================================================
   REVEAL ANIMATIONS
   ============================================================ */
.reveal-up {
  opacity: 0;
  transform: translateY(40px);
}
.reveal-left {
  opacity: 0;
  transform: translateX(-50px);
}
.reveal-right {
  opacity: 0;
  transform: translateX(50px);
}
.reveal-up.revealed,
.reveal-left.revealed,
.reveal-right.revealed {
  opacity: 1;
  transform: none;
  transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 8rem 0 4rem;
}

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

.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 80% at 20% 40%, rgba(30,77,140,0.5) 0%, transparent 60%),
              radial-gradient(ellipse 60% 60% at 80% 60%, rgba(14,165,233,0.2) 0%, transparent 60%),
              linear-gradient(180deg, var(--blue-900) 0%, rgba(10,22,40,0.95) 100%);
}

.hero-noise {
  position: absolute;
  inset: 0;
  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)' opacity='0.03'/%3E%3C/svg%3E");
  opacity: 0.4;
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(59,130,246,0.04) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(59,130,246,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}

/* Floating shapes */
.hero-shapes {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
}

.shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.15;
  animation: floatShape 8s ease-in-out infinite;
}

.shape-1 {
  width: 500px; height: 500px;
  background: var(--blue-500);
  top: -100px; right: -100px;
  animation-delay: 0s;
}
.shape-2 {
  width: 300px; height: 300px;
  background: var(--sky-500);
  bottom: 20%; left: -80px;
  animation-delay: 2s;
}
.shape-3 {
  width: 200px; height: 200px;
  background: var(--blue-300);
  top: 30%; right: 30%;
  animation-delay: 4s;
}
.shape-4 {
  width: 150px; height: 150px;
  background: var(--sky-400);
  bottom: 10%; right: 20%;
  animation-delay: 6s;
}

@keyframes floatShape {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-30px) scale(1.05); }
}

.hero-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 5rem;
  align-items: center;
  position: relative;
  z-index: 2;
}

/* Hero Content */
.hero-content { display: flex; flex-direction: column; gap: 2rem; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  background: rgba(34,197,94,0.1);
  border: 1px solid rgba(34,197,94,0.25);
  padding: 0.5rem 1.125rem;
  border-radius: 100px;
  font-family: var(--font-primary);
  font-size: 0.8125rem;
  font-weight: 500;
  color: #4ade80;
  width: fit-content;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: #4ade80;
  border-radius: 50%;
  animation: pulse-green 2s infinite;
}

@keyframes pulse-green {
  0%, 100% { box-shadow: 0 0 0 0 rgba(74,222,128,0.4); }
  50% { box-shadow: 0 0 0 6px rgba(74,222,128,0); }
}

/* Hero name — "Md Habibur Rahman" */
.hero-name {
  font-family: var(--font-primary);
  font-size: clamp(2.25rem, 4.5vw, 3.75rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--white);
}

/* Static role line */
.hero-role {
  font-family: var(--font-primary);
  font-size: clamp(1rem, 1.8vw, 1.25rem);
  font-weight: 600;
  color: var(--sky-400);
  letter-spacing: 0.02em;
}

/* Typewriter headline */
.hero-title {
  font-family: var(--font-primary);
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--slate-300);
  min-height: 1.4em;
}

.title-accent {
  background: linear-gradient(135deg, var(--blue-300), var(--sky-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Typewriter */
.typewriter { display: inline-block; min-width: 4ch; }
.typewriter-cursor {
  display: inline-block;
  color: var(--sky-400);
  animation: blink 1s step-end infinite;
  margin-left: 2px;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

.hero-subtitle {
  font-size: 1.0625rem;
  color: var(--slate-400);
  line-height: 1.75;
  max-width: 520px;
}

.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

/* Hero Stats */
.hero-stats {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.stat-num {
  font-family: var(--font-primary);
  font-size: 2rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1;
}

.stat-plus {
  font-family: var(--font-primary);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--blue-300);
}

.stat-label {
  font-size: 0.8125rem;
  color: var(--slate-400);
  margin-top: 0.25rem;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--glass-border);
}

/* Hero Socials */
.hero-socials { display: flex; gap: 0.875rem; flex-wrap: wrap; }

.social-icon-link {
  width: 44px;
  height: 44px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--slate-300);
  transition: var(--transition-fast);
  backdrop-filter: blur(10px);
}

.social-icon-link:hover {
  background: var(--blue-400);
  border-color: var(--blue-300);
  color: var(--white);
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(37,99,176,0.4);
}

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

.profile-frame {
  position: relative;
  width: 460px;
  height: 460px;
  display: flex;
  align-items: center;
  justify-content: center;
  will-change: transform;
}

.profile-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(59,130,246,0.2);
  animation: ringPulse 4s ease-in-out infinite;
}

.ring-1 { width: 100%; height: 100%; animation-delay: 0s; }
.ring-2 { width: 85%; height: 85%; border-color: rgba(59,130,246,0.3); animation-delay: 0.5s; }
.ring-3 { width: 70%; height: 70%; border-color: rgba(59,130,246,0.4); animation-delay: 1s; }

@keyframes ringPulse {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.02); opacity: 1; }
}

.profile-img-wrap {
  width: 340px;
  height: 340px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid rgba(59,130,246,0.3);
  box-shadow: 0 0 60px rgba(37,99,176,0.4),
              0 0 120px rgba(37,99,176,0.15),
              inset 0 0 40px rgba(59,130,246,0.1);
  position: relative;
  z-index: 2;
}

.profile-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transition: transform 0.5s ease;
}

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

/* Floating Cards */
.float-card {
  position: absolute;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1.125rem;
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-family: var(--font-primary);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--white);
  z-index: 3;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
  white-space: nowrap;
}

.float-card i { color: var(--blue-300); font-size: 1rem; }

.float-card-1 { top: 10%; right: -10%; animation: float1 5s ease-in-out infinite; }
.float-card-2 { bottom: 20%; left: -15%; animation: float2 6s ease-in-out infinite; }
.float-card-3 { bottom: 8%; right: -5%; animation: float3 7s ease-in-out infinite; }

@keyframes float1 { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
@keyframes float2 { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
@keyframes float3 { 0%, 100% { transform: translateY(0) rotate(0deg); } 50% { transform: translateY(-10px) rotate(2deg); } }

.mouse-glow {
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(59,130,246,0.15) 0%, transparent 70%);
  pointer-events: none;
  transform: translate(-50%, -50%);
  z-index: 1;
}

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  z-index: 2;
  animation: bounce 2s ease-in-out infinite;
}

.scroll-text {
  font-size: 0.6875rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--slate-500);
  font-family: var(--font-primary);
}

.scroll-line {
  width: 1px;
  height: 50px;
  background: linear-gradient(180deg, var(--slate-500), transparent);
  position: relative;
  overflow: hidden;
}

.scroll-line::after {
  content: '';
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--blue-300);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0% { top: -100%; }
  100% { top: 200%; }
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* ============================================================
   ABOUT
   ============================================================ */
.about {
  background: linear-gradient(180deg, var(--blue-900) 0%, rgba(13,31,60,0.5) 100%);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 6rem;
  align-items: center;
}

.about-visual {
  position: relative;
}

.about-img-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  box-shadow: 0 40px 80px rgba(0,0,0,0.4);
  aspect-ratio: 4/3;
}

.about-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

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

.about-img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(45deg, rgba(10,22,40,0.4), transparent);
}

.exp-badge {
  position: absolute;
  bottom: -2rem;
  right: -2rem;
  background: linear-gradient(135deg, var(--blue-400), var(--sky-500));
  border-radius: var(--radius);
  padding: 1.5rem 2rem;
  text-align: center;
  box-shadow: 0 20px 40px rgba(37,99,176,0.4);
}

.exp-num {
  display: block;
  font-family: var(--font-primary);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1;
}

.exp-label {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.8);
  font-family: var(--font-primary);
  white-space: nowrap;
}

.skill-chips {
  position: absolute;
  top: -1.5rem;
  left: -1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.skill-chip {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 100px;
  padding: 0.375rem 0.875rem;
  font-size: 0.75rem;
  font-weight: 600;
  font-family: var(--font-primary);
  color: var(--white);
}

/* About Content */
.about-content { display: flex; flex-direction: column; gap: 1.5rem; }

.about-text {
  font-size: 1.0625rem;
  color: var(--slate-400);
  line-height: 1.75;
}

/* Timeline */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  margin: 0.5rem 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--blue-400), var(--blue-700));
}

.timeline-item {
  display: flex;
  gap: 1.5rem;
  padding-bottom: 1.75rem;
  position: relative;
}

.timeline-item:last-child { padding-bottom: 0; }

.tl-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--blue-300);
  border: 3px solid var(--blue-900);
  box-shadow: 0 0 0 2px var(--blue-400);
  flex-shrink: 0;
  margin-top: 3px;
  position: relative;
  z-index: 1;
}

.tl-content { flex: 1; }

.tl-year {
  font-family: var(--font-primary);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--sky-400);
  text-transform: uppercase;
}

.tl-title {
  font-family: var(--font-primary);
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
  margin: 0.25rem 0;
}

.tl-desc {
  font-size: 0.875rem;
  color: var(--slate-400);
  line-height: 1.6;
}

/* ============================================================
   SKILLS
   ============================================================ */
.skills { background: var(--blue-900); }

.skills-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 5rem;
  align-items: start;
}

.skills-bars { display: flex; flex-direction: column; gap: 2rem; }

.skill-bar { cursor: default; }

.skill-info {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.625rem;
}

.skill-name {
  font-family: var(--font-primary);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--white);
}

.skill-pct {
  font-family: var(--font-primary);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--blue-300);
}

.skill-track {
  height: 6px;
  background: rgba(255,255,255,0.06);
  border-radius: 100px;
  overflow: hidden;
}

.skill-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--blue-400), var(--sky-400));
  border-radius: 100px;
  transition: width 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  position: relative;
  will-change: width;
}

.skill-fill::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 16px;
  height: 100%;
  background: var(--white);
  border-radius: 100px;
  opacity: 0.5;
}

/* Tools Grid */
.tools-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  position: sticky;
  top: 100px;
}

.tool-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  transition: var(--transition-fast);
  backdrop-filter: blur(10px);
}

.tool-card i {
  font-size: 1.75rem;
  color: var(--blue-300);
  transition: transform var(--transition-fast);
}

.tool-card span {
  font-family: var(--font-primary);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--slate-200);
}

.tool-card:hover {
  background: rgba(37,99,176,0.15);
  border-color: var(--blue-300);
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(37,99,176,0.2);
}

.tool-card:hover i { transform: scale(1.2) rotate(-5deg); }

/* ============================================================
   STATS
   ============================================================ */
.stats {
  padding: 5rem 0;
  position: relative;
  overflow: hidden;
}

.stats-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(30,77,140,0.15) 0%, rgba(14,165,233,0.08) 100%);
  border-top: 1px solid var(--glass-border);
  border-bottom: 1px solid var(--glass-border);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  position: relative;
  z-index: 1;
}

.stat-card {
  text-align: center;
  padding: 2.5rem 1.5rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  transition: var(--transition-fast);
  backdrop-filter: blur(10px);
}

.stat-card:hover {
  background: rgba(37,99,176,0.1);
  border-color: var(--blue-300);
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(37,99,176,0.2);
}

.stat-icon {
  font-size: 1.75rem;
  color: var(--blue-300);
  margin-bottom: 1rem;
}

.stat-count-wrap {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.25rem;
}

.count-num {
  font-family: var(--font-primary);
  font-size: 2.75rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1;
}

.count-plus {
  font-family: var(--font-primary);
  font-size: 2rem;
  font-weight: 700;
  color: var(--blue-300);
}

.count-label {
  display: block;
  font-size: 0.875rem;
  color: var(--slate-400);
  margin-top: 0.5rem;
  font-family: var(--font-primary);
}

/* ============================================================
   SERVICES
   ============================================================ */
.services { background: linear-gradient(180deg, rgba(13,31,60,0.5) 0%, var(--blue-900) 100%); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.service-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
  cursor: default;
  transform-style: preserve-3d;
}

.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(37,99,176,0.1), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.service-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  border: 1px solid transparent;
  background: linear-gradient(135deg, var(--blue-300), transparent) border-box;
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: destination-out;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition);
}

.service-card:hover {
  transform: translateY(-10px) rotateX(2deg);
  box-shadow: 0 30px 60px rgba(0,0,0,0.3), 0 0 40px rgba(37,99,176,0.15);
  border-color: rgba(59,130,246,0.4);
}

.service-card:hover::before { opacity: 1; }
.service-card:hover::after { opacity: 1; }

.service-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, rgba(37,99,176,0.2), rgba(14,165,233,0.1));
  border: 1px solid rgba(59,130,246,0.2);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--blue-300);
  margin-bottom: 1.5rem;
  transition: var(--transition-fast);
}

.service-card:hover .service-icon {
  background: linear-gradient(135deg, var(--blue-400), var(--sky-500));
  color: var(--white);
  transform: scale(1.1) rotate(-5deg);
  border-color: transparent;
}

.service-title {
  font-family: var(--font-primary);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.875rem;
  line-height: 1.3;
}

.service-desc {
  font-size: 0.9rem;
  color: var(--slate-400);
  line-height: 1.7;
}

/* ============================================================
   PORTFOLIO
   ============================================================ */
.portfolio {
  background: var(--blue-900);
  overflow: hidden;
}

.portfolio .container { margin-bottom: 3rem; }

/* Filter Buttons */
.portfolio-filters {
  display: flex;
  gap: 0.625rem;
  flex-wrap: wrap;
  justify-content: center;
}

.filter-btn {
  font-family: var(--font-primary);
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 0.5rem 1.25rem;
  border-radius: 100px;
  border: 1px solid var(--glass-border);
  color: var(--slate-400);
  background: var(--glass-bg);
  transition: var(--transition-fast);
  cursor: pointer;
  white-space: nowrap;
}

.filter-btn:hover {
  color: var(--white);
  border-color: var(--blue-400);
}

.filter-btn.active {
  background: linear-gradient(135deg, var(--blue-400), var(--sky-500));
  border-color: transparent;
  color: var(--white);
  box-shadow: 0 4px 16px rgba(37,99,176,0.3);
}

/* Track */
.portfolio-track-wrapper {
  overflow: hidden;
  padding: 2rem 0 3rem;
  cursor: grab;
  position: relative;
}

.portfolio-track-wrapper:active { cursor: grabbing; }

.portfolio-track {
  display: flex;
  gap: 1.75rem;
  padding: 1rem 2rem;
  will-change: transform;
  transform: translateZ(0);
  user-select: none;
}

/* Portfolio Cards */
.portfolio-card {
  flex-shrink: 0;
  width: 340px;
  height: 280px;
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  cursor: pointer;
  background: var(--blue-800);
  border: 1px solid var(--glass-border);
  transform-style: preserve-3d;
  transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              box-shadow 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              opacity 0.3s ease;
}

/* .portfolio-card.hidden removed - using inline display:none for filtering */

.portfolio-card:hover {
  transform: perspective(800px) rotateX(-4deg) rotateY(4deg) translateY(-12px) scale(1.02);
  box-shadow: 0 40px 80px rgba(0,0,0,0.5), 0 0 40px rgba(37,99,176,0.2);
  border-color: rgba(59,130,246,0.4);
  z-index: 10;
}

.pc-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: transform;
}

.portfolio-card:hover .pc-thumb { transform: scale(1.08); }

.pc-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
    transparent 30%,
    rgba(10,22,40,0.7) 65%,
    rgba(10,22,40,0.95) 100%
  );
  transition: background var(--transition);
}

.portfolio-card:hover .pc-overlay {
  background: linear-gradient(180deg,
    rgba(10,22,40,0.2) 0%,
    rgba(10,22,40,0.75) 60%,
    rgba(10,22,40,0.97) 100%
  );
}

.pc-gradient-border {
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  border: 1.5px solid transparent;
  background: linear-gradient(135deg, rgba(59,130,246,0.5), rgba(14,165,233,0.3)) border-box;
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: destination-out;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition);
}

.portfolio-card:hover .pc-gradient-border { opacity: 1; }

.pc-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1.5rem;
  transform: translateY(4px);
  transition: transform var(--transition);
}

.portfolio-card:hover .pc-content { transform: translateY(0); }

.pc-category {
  font-family: var(--font-primary);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--sky-400);
  margin-bottom: 0.375rem;
}

.pc-title {
  font-family: var(--font-primary);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1.3;
  margin-bottom: 0.75rem;
}

.pc-link-hint {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-primary);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--blue-200);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity var(--transition), transform var(--transition);
}

.portfolio-card:hover .pc-link-hint { opacity: 1; transform: translateY(0); }

/* Drag hint */
.drag-hint {
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-primary);
  font-size: 0.8125rem;
  color: var(--slate-500);
  padding-top: 1rem;
}

/* ============================================================
   TESTIMONIALS
   ============================================================ */
.testimonials {
  background: linear-gradient(180deg, var(--blue-900) 0%, rgba(13,31,60,0.5) 100%);
}

.testimonials-swiper {
  padding-bottom: 3.5rem !important;
}

.testimonial-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
  position: relative;
  height: auto;
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: 1.5rem;
  right: 2rem;
  font-family: var(--font-primary);
  font-size: 5rem;
  line-height: 1;
  color: var(--blue-300);
  opacity: 0.15;
}

.tc-stars {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 1.25rem;
}

.tc-stars i { font-size: 0.875rem; color: var(--warning); }

.tc-text {
  font-size: 1rem;
  color: var(--slate-300);
  line-height: 1.75;
  margin-bottom: 2rem;
  font-style: italic;
}

.tc-author {
  display: flex;
  align-items: center;
  gap: 1rem;
  border-top: 1px solid var(--glass-border);
  padding-top: 1.5rem;
}

.tc-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--blue-400);
  flex-shrink: 0;
  background: var(--blue-700);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-primary);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--white);
}

.tc-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.tc-name {
  font-family: var(--font-primary);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--white);
}

.tc-role {
  font-size: 0.8125rem;
  color: var(--slate-500);
}

/* Swiper Customization */
.swiper-pagination-bullet {
  background: var(--slate-600) !important;
  opacity: 1 !important;
  width: 8px !important;
  height: 8px !important;
}

.swiper-pagination-bullet-active {
  background: var(--blue-300) !important;
  width: 24px !important;
  border-radius: 4px !important;
}

.swiper-button-prev,
.swiper-button-next {
  color: var(--blue-300) !important;
  background: var(--glass-bg) !important;
  width: 44px !important;
  height: 44px !important;
  border-radius: 50% !important;
  border: 1px solid var(--glass-border) !important;
  backdrop-filter: blur(10px) !important;
}

.swiper-button-prev::after,
.swiper-button-next::after { font-size: 14px !important; }

/* ============================================================
   CONTACT
   ============================================================ */
.contact { background: var(--blue-900); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 6rem;
  align-items: start;
}

.contact-info { display: flex; flex-direction: column; gap: 2rem; }

.contact-desc {
  font-size: 1.0625rem;
  color: var(--slate-400);
  line-height: 1.7;
}

.contact-items {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.ci-icon {
  width: 48px;
  height: 48px;
  background: rgba(37,99,176,0.15);
  border: 1px solid rgba(59,130,246,0.2);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
  color: var(--blue-300);
  flex-shrink: 0;
  transition: var(--transition-fast);
}

.contact-item:hover .ci-icon {
  background: rgba(37,99,176,0.3);
  border-color: var(--blue-300);
}

.ci-text { display: flex; flex-direction: column; }

.ci-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--slate-500);
  font-family: var(--font-primary);
}

.ci-value {
  font-size: 0.9375rem;
  color: var(--slate-200);
  transition: color var(--transition-fast);
}

a.ci-value:hover { color: var(--blue-300); }

.contact-socials {
  display: flex;
  gap: 0.875rem;
  flex-wrap: wrap;
}

.cs-link {
  width: 48px;
  height: 48px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
  color: var(--slate-300);
  transition: var(--transition-fast);
  backdrop-filter: blur(10px);
}

.cs-link:hover {
  background: var(--blue-400);
  border-color: var(--blue-300);
  color: var(--white);
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(37,99,176,0.4);
}

/* Form */
.contact-form-wrap { position: relative; }

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-group { position: relative; }

.form-group input,
.form-group textarea {
  width: 100%;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 1.125rem 1.25rem 0.625rem;
  font-size: 0.9375rem;
  color: var(--white);
  font-family: var(--font-secondary);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
  resize: none;
}

.form-group textarea { padding-top: 1.5rem; }

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--blue-300);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.1);
}

.float-label {
  position: absolute;
  top: 50%;
  left: 1.25rem;
  transform: translateY(-50%);
  font-size: 0.875rem;
  color: var(--slate-500);
  pointer-events: none;
  transition: var(--transition-fast);
  font-family: var(--font-secondary);
}

.form-group textarea ~ .float-label { top: 1.25rem; transform: none; }

.form-group input:focus ~ .float-label,
.form-group input:not(:placeholder-shown) ~ .float-label {
  top: 0.625rem;
  font-size: 0.6875rem;
  color: var(--blue-300);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transform: none;
}

.form-group textarea:focus ~ .float-label,
.form-group textarea:not(:placeholder-shown) ~ .float-label {
  top: 0.375rem;
  font-size: 0.6875rem;
  color: var(--blue-300);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.form-error {
  display: block;
  font-size: 0.75rem;
  color: var(--error);
  margin-top: 0.375rem;
  min-height: 1rem;
}

.form-submit { width: 100%; justify-content: center; }

/* Success */
.form-success {
  position: absolute;
  inset: 0;
  background: rgba(10,22,40,0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius-lg);
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 1rem;
  padding: 3rem;
  border: 1px solid rgba(34,197,94,0.2);
}

.form-success.show { display: flex; }

.success-icon { font-size: 4rem; color: var(--success); animation: successPop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1); }

@keyframes successPop {
  0% { transform: scale(0); }
  100% { transform: scale(1); }
}

.form-success h3 {
  font-family: var(--font-primary);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
}

.form-success p { color: var(--slate-400); }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--blue-900);
  border-top: 1px solid var(--glass-border);
  position: relative;
}

.footer-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 5rem;
  padding: 5rem 0 3rem;
  border-bottom: 1px solid var(--glass-border);
}

.footer-brand { display: flex; flex-direction: column; gap: 1.25rem; }

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-primary);
  width: fit-content;
}

.footer-tagline {
  font-size: 0.9375rem;
  color: var(--slate-500);
  line-height: 1.7;
  max-width: 380px;
}

.footer-links-wrap {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.footer-col h4 {
  font-family: var(--font-primary);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate-400);
  margin-bottom: 1.25rem;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-col ul a {
  font-size: 0.9rem;
  color: var(--slate-500);
  transition: color var(--transition-fast);
}

.footer-col ul a:hover { color: var(--blue-300); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.75rem 0;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-copy {
  font-size: 0.875rem;
  color: var(--slate-600);
}

.footer-socials {
  display: flex;
  gap: 1rem;
}

.footer-socials a {
  font-size: 1rem;
  color: var(--slate-600);
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.footer-socials a:hover {
  color: var(--blue-300);
  transform: translateY(-3px);
}

/* Back to Top */
.back-to-top {
  position: fixed;
  bottom: 2.5rem;
  right: 2.5rem;
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--blue-400), var(--sky-500));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
  color: var(--white);
  z-index: 500;
  cursor: pointer;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition), transform var(--transition);
  box-shadow: 0 8px 24px rgba(37,99,176,0.4);
}

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

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 32px rgba(37,99,176,0.5);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
/* Large desktop scaling — use more screen width */
@media (min-width: 1600px) {
  .profile-frame { width: 500px; height: 500px; }
  .profile-img-wrap { width: 360px; height: 360px; }
  .hero-name { font-size: clamp(2.5rem, 4vw, 4.25rem); }
  .hero-title { font-size: clamp(1.75rem, 3vw, 2.75rem); }
  .services-grid { grid-template-columns: repeat(4, 1fr); gap: 2rem; }
  .stats-grid { grid-template-columns: repeat(4, 1fr); gap: 2.5rem; }
  .skills-grid { gap: 6rem; }
  .about-grid { gap: 7rem; }
  .contact-grid { gap: 7rem; }
}

@media (min-width: 2200px) {
  .profile-frame { width: 560px; height: 560px; }
  .profile-img-wrap { width: 400px; height: 400px; }
  .hero-name { font-size: clamp(3rem, 4vw, 4.75rem); }
  .hero-title { font-size: clamp(2rem, 3vw, 3rem); }
  .hero-subtitle { font-size: 1.25rem; max-width: 640px; }
  .stat-num { font-size: 2.5rem; }
  .count-num { font-size: 3.25rem; }
  .section-title { font-size: clamp(2.5rem, 4vw, 3.5rem); }
  .section-desc { font-size: 1.25rem; }
  .service-card { padding: 3rem 2.5rem; }
  .testimonial-card { padding: 3rem 2.5rem; }
  .contact-form { padding: 3rem; }
}

@media (min-width: 3000px) {
  .profile-frame { width: 640px; height: 640px; }
  .profile-img-wrap { width: 460px; height: 460px; }
  .hero-name { font-size: clamp(3.5rem, 4vw, 5.5rem); }
  .hero-title { font-size: clamp(2.5rem, 3vw, 3.5rem); }
  .hero-subtitle { font-size: 1.5rem; max-width: 720px; }
  .stat-num { font-size: 3rem; }
  .count-num { font-size: 4rem; }
  .section-title { font-size: clamp(3rem, 4vw, 4rem); }
  .section-desc { font-size: 1.5rem; }
  .service-card { padding: 3.5rem 3rem; }
  .service-title { font-size: 1.5rem; }
  .service-desc { font-size: 1.0625rem; }
  .testimonial-card { padding: 3.5rem 3rem; }
  .tc-text { font-size: 1.25rem; }
  .contact-form { padding: 3.5rem; }
  .portfolio-card { width: 400px; height: 320px; }
}

@media (max-width: 1200px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 1024px) {
  .hero-container { grid-template-columns: 1fr; gap: 4rem; }
  .hero-visual { order: -1; }
  .profile-frame { width: 320px; height: 320px; }
  .profile-img-wrap { width: 240px; height: 240px; }
  .about-grid { grid-template-columns: 1fr; gap: 4rem; }
  .skills-grid { grid-template-columns: 1fr; gap: 3rem; }
  .tools-grid { position: static; }
  .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
  .footer-top { grid-template-columns: 1fr; gap: 3rem; }
}

@media (max-width: 768px) {
  :root { --radius: 16px; }
  .section { padding: 5rem 0; }
  .nav-links, .nav-cta { display: none; }
  .nav-hamburger { display: flex; }
  .mobile-menu { display: flex; }
  .hero-name { font-size: clamp(1.875rem, 7vw, 2.75rem); }
  .hero-role { font-size: 0.9375rem; }
  .hero-title { font-size: clamp(1.125rem, 4.5vw, 1.625rem); }
  .hero-stats { gap: 1.25rem; }
  .float-card-1, .float-card-2, .float-card-3 { display: none; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: 1fr; }
  .portfolio-card { width: 280px; height: 230px; }
  .exp-badge { position: static; margin-top: 2rem; display: inline-block; }
  .skill-chips { position: static; flex-direction: row; flex-wrap: wrap; margin-top: 1rem; }
  .form-row { grid-template-columns: 1fr; }
  .footer-links-wrap { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .container { padding: 0 1.25rem; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .stats-grid { grid-template-columns: 1fr; }
  .hero-stats { flex-wrap: wrap; }
  .contact-form { padding: 1.5rem; }
  .back-to-top { bottom: 1.5rem; right: 1.5rem; }
}