/* ============================================================
   ByteCruft — Professional Web Development Studio
   Design System v2.0 — ReactBits-inspired animations
   ============================================================ */

/* ---- CSS Variables ---- */
:root {
  --bg: #06060b;
  --bg2: #0c0c17;
  --surface: #111122;
  --surface2: #161630;
  --border: #1e1e3a;
  --border2: #2a2a4a;
  --text: #e8e8f0;
  --text2: #a0a0b8;
  --text3: #606078;
  --accent: #6366f1;
  --accent2: #8b5cf6;
  --accent-glow: rgba(99, 102, 241, 0.35);
  --accent-glow-strong: rgba(99, 102, 241, 0.6);
  --green: #22c55e;
  --red: #ef4444;
  --amber: #f59e0b;
  --radius: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Consolas', monospace;
}

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

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--border) var(--bg);
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

::selection { background: var(--accent); color: #fff; }

body {
  min-height: 100vh;
  overflow-x: hidden;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(99,102,241,0.08) 0%, transparent 60%),
    radial-gradient(ellipse 40% 50% at 10% 50%, rgba(139,92,246,0.04) 0%, transparent 50%),
    radial-gradient(ellipse 40% 50% at 90% 80%, rgba(99,102,241,0.04) 0%, transparent 50%),
    var(--bg);
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Noise texture overlay ---- */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---- Scroll Progress Bar ---- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  z-index: 10000;
  transition: width 0.1s linear;
}

/* ============================================================
   SPLASH SCREEN
   ============================================================ */
.splash {
  position: fixed;
  inset: 0;
  z-index: 10001;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

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

.splash-content { text-align: center; }

.splash-glitch {
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  color: #fff;
  position: relative;
  animation: splashReveal 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  opacity: 0;
}

.splash-glitch::before,
.splash-glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
}

.splash-glitch::before {
  color: var(--accent);
  animation: glitchBefore 0.3s ease 0.6s;
}

.splash-glitch::after {
  color: var(--accent2);
  animation: glitchAfter 0.3s ease 0.65s;
}

@keyframes glitchBefore {
  0%, 100% { opacity: 0; }
  20% { opacity: 0.5; transform: translate(-2px, 1px); }
  40% { opacity: 0; transform: translate(0); }
  60% { opacity: 0.5; transform: translate(2px, -1px); }
}

@keyframes glitchAfter {
  0%, 100% { opacity: 0; }
  20% { opacity: 0; }
  40% { opacity: 0.5; transform: translate(2px, -1px); }
  60% { opacity: 0; transform: translate(0); }
  80% { opacity: 0.5; transform: translate(-2px, 1px); }
}

@keyframes splashReveal {
  0% { opacity: 0; transform: translateY(20px) scale(0.95); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}

.splash-line {
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), var(--accent2), transparent);
  margin: 16px auto 0;
  animation: splashLine 1s ease 0.4s forwards;
}

@keyframes splashLine {
  0% { width: 0; }
  100% { width: 120px; }
}

.splash-sub {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text3);
  letter-spacing: 0.2em;
  opacity: 0;
  animation: splashReveal 0.6s ease 0.7s forwards;
}

@keyframes splashExit {
  0% { opacity: 1; transform: translateY(0) scale(1); }
  100% { opacity: 0; transform: translateY(-30px) scale(0.95); }
}

.splash.exit .splash-content { animation: splashExit 0.5s ease forwards; }

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: all var(--transition);
}

.nav.scrolled {
  padding: 8px 0;
  background: rgba(6, 6, 11, 0.8);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  z-index: 10;
}

.nav-logo img { width: 30px; height: 30px; border-radius: 6px; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text2);
  position: relative;
  padding: 4px 0;
  transition: color var(--transition);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--accent);
  transition: width var(--transition);
  border-radius: 1px;
}

.nav-links a:hover { color: #fff; }
.nav-links a:hover::after { width: 100%; }

.nav-cta {
  color: #fff !important;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  padding: 8px 18px !important;
  border-radius: 8px;
  font-weight: 600 !important;
  transition: all var(--transition) !important;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--accent-glow);
}

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

/* Mobile toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  z-index: 10;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s ease;
  transform-origin: center;
}

.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero-glitch {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.85;
  z-index: 0;
}

.hero-noise {
  position: absolute;
  inset: 0;
  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='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.hero::before {
  content: '';
  position: absolute;
  top: -30%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(99,102,241,0.12) 0%, transparent 70%);
  pointer-events: none;
  animation: heroPulse 8s ease-in-out infinite;
}

@keyframes heroPulse {
  0%, 100% { transform: translateX(-50%) scale(1); opacity: 0.8; }
  50% { transform: translateX(-50%) scale(1.15); opacity: 0.5; }
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 780px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border: 1px solid rgba(99,102,241,0.25);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text2);
  margin-bottom: 32px;
  background: rgba(99,102,241,0.06);
  animation: fadeInUp 0.8s ease 0.2s both;
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: badgePulse 2s ease-in-out infinite;
}

@keyframes badgePulse {
  0%, 100% { box-shadow: 0 0 0 0 var(--accent-glow); }
  50% { box-shadow: 0 0 0 6px transparent; }
}

.hero-title {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 24px;
}

.hero-title-line {
  font-size: clamp(2.4rem, 7vw, 4.5rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1.05;
  animation: fadeInUp 0.8s ease both;
}

.hero-title-line:nth-child(1) { animation-delay: 0.35s; }
.hero-title-line:nth-child(2) { animation-delay: 0.50s; }
.hero-title-line:nth-child(3) { animation-delay: 0.65s; }

.hero-title-accent {
  background: linear-gradient(135deg, var(--accent) 0%, #a78bfa 50%, var(--accent2) 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 4s ease-in-out infinite, fadeInUp 0.8s ease 0.5s both;
}

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

.hero-text {
  font-size: 1.1rem;
  color: var(--text2);
  line-height: 1.7;
  max-width: 560px;
  margin: 0 auto 40px;
  animation: fadeInUp 0.8s ease 0.75s both;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 60px;
  animation: fadeInUp 0.8s ease 0.85s both;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 1s both;
}

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

.hero-stat-value {
  display: block;
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, #fff, var(--text2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-stat-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text3);
  margin-top: 2px;
}

/* ============================================================
   SECTIONS
   ============================================================ */
.section {
  padding: 120px 0;
  position: relative;
}

.section-dark { background: var(--bg); }
.section-surface { background: var(--bg2); }

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 20px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text2);
  line-height: 1.7;
  max-width: 600px;
  margin-bottom: 48px;
}

/* ---- About Section ---- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-cards {
  display: grid;
  gap: 12px;
}

.about-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.9rem;
  color: var(--text2);
  transition: all var(--transition);
}

.about-card:hover {
  border-color: var(--border2);
  background: rgba(255,255,255,0.04);
  transform: translateX(4px);
}

.about-card-icon { color: var(--accent); font-size: 0.5rem; }

/* ---- Services Grid ---- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.service-card {
  position: relative;
  padding: 32px 28px;
  background: rgba(255,255,255,0.015);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
  overflow: hidden;
}

.service-card-glow {
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--accent), transparent 50%, var(--accent2));
  opacity: 0;
  z-index: -1;
  transition: opacity var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: var(--border2);
  box-shadow: 0 20px 50px -20px rgba(99,102,241,0.2);
}

.service-card:hover .service-card-glow { opacity: 0.08; }

.service-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(99,102,241,0.1);
  border-radius: var(--radius);
  color: var(--accent);
  margin-bottom: 20px;
  transition: all var(--transition);
}

.service-card:hover .service-icon {
  background: rgba(99,102,241,0.18);
  transform: scale(1.05);
}

.service-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.service-card > p {
  font-size: 0.85rem;
  color: var(--text2);
  line-height: 1.6;
  margin-bottom: 20px;
}

.service-price {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #fff, var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 18px;
}

.service-features {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.service-features li {
  font-size: 0.8rem;
  color: var(--text3);
  padding-left: 18px;
  position: relative;
}

.service-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.5;
}

/* ---- Calculator ---- */
.calculator-card {
  background: rgba(255,255,255,0.015);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 48px;
  max-width: 700px;
  margin: 0 auto;
}

.calc-steps {
  display: flex;
  align-items: center;
  gap: 0;
  margin-bottom: 40px;
}

.calc-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  opacity: 0.35;
  transition: all var(--transition);
}

.calc-step.active { opacity: 1; }

.calc-step-num {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--border);
  border-radius: 50%;
  transition: all var(--transition);
}

.calc-step.active .calc-step-num {
  border-color: var(--accent);
  background: rgba(99,102,241,0.1);
}

.calc-step-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text2);
}

.calc-step-line {
  flex: 1;
  height: 1px;
  background: var(--border);
  margin: 0 4px;
}

.calc-slide { display: none; }
.calc-slide.active { display: block; animation: fadeIn 0.3s ease; }

@keyframes fadeIn {
  0% { opacity: 0; transform: translateY(10px); }
  100% { opacity: 1; transform: translateY(0); }
}

.calc-slide h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 24px;
}

.calc-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 28px;
}

.calc-option {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 18px 20px;
  background: rgba(255,255,255,0.015);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
}

.calc-option:has(input:checked) {
  border-color: var(--accent);
  background: rgba(99,102,241,0.06);
}

.calc-option:hover {
  border-color: var(--border2);
  background: rgba(255,255,255,0.03);
}

.calc-option input { display: none; }
.calc-option-title { font-weight: 600; font-size: 0.95rem; }
.calc-option-desc { font-size: 0.78rem; color: var(--text3); }
.calc-option-price {
  font-weight: 700;
  color: var(--accent);
  font-size: 0.9rem;
}

.calc-options-check {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.calc-check {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text2);
  cursor: pointer;
  padding: 8px 0;
}

.calc-check input[type="checkbox"] {
  accent-color: var(--accent);
  width: 16px;
  height: 16px;
}

.calc-nav {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.calc-result { text-align: center; padding: 24px 0; }

.calc-result-price {
  font-size: 3.5rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, #fff, var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.calc-result-range {
  font-size: 0.9rem;
  color: var(--text2);
  margin: 8px 0;
}

.calc-result-detail { font-size: 0.82rem; color: var(--text3); }
.calc-result-note {
  font-size: 0.82rem;
  color: var(--text3);
  text-align: center;
  margin-bottom: 24px;
  line-height: 1.6;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 12px 28px;
  border-radius: 10px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.btn:disabled {
  opacity: 0.4;
  pointer-events: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  box-shadow: 0 4px 20px rgba(99,102,241,0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow-strong);
}

.btn-primary:active { transform: translateY(0); }

.btn-outline {
  border: 1px solid var(--border2);
  color: var(--text);
  background: rgba(255,255,255,0.02);
}

.btn-outline:hover {
  border-color: var(--accent);
  background: rgba(99,102,241,0.05);
  transform: translateY(-2px);
}

.btn-ghost {
  color: var(--text2);
  padding: 12px 20px;
}

.btn-ghost:hover { color: #fff; }

/* ---- Process Timeline ---- */
.process-timeline {
  display: flex;
  flex-direction: column;
  gap: 32px;
  max-width: 800px;
}

.process-step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 32px;
  align-items: flex-start;
}

.process-step-num {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.process-step-content h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 6px;
  letter-spacing: -0.02em;
}

.process-step-content p {
  font-size: 0.9rem;
  color: var(--text2);
  line-height: 1.7;
}

/* ---- Tech Grid ---- */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.tech-card {
  padding: 24px 20px;
  background: rgba(255,255,255,0.015);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
  text-align: center;
}

.tech-card:hover {
  border-color: var(--border2);
  background: rgba(99,102,241,0.04);
  transform: translateY(-3px);
}

.tech-icon {
  font-size: 1.6rem;
  font-weight: 800;
  font-family: var(--font-mono);
  margin-bottom: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.tech-card h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.tech-card span {
  font-size: 0.78rem;
  color: var(--text3);
  line-height: 1.5;
}

/* ---- Portfolio ---- */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.portfolio-card {
  background: rgba(255,255,255,0.015);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  display: block;
  text-decoration: none;
  color: inherit;
}

.portfolio-card:hover {
  border-color: var(--accent);
  transform: translateY(-6px);
  box-shadow: 0 20px 50px -20px rgba(99,102,241,0.25);
}

.portfolio-card-image {
  height: 160px;
  overflow: hidden;
}

.portfolio-card-preview {
  width: 100%;
  height: 100%;
  position: relative;
  transition: transform 0.5s ease;
}

.portfolio-card:hover .portfolio-card-preview {
  transform: scale(1.05);
}

.pc-zerno {
  background: linear-gradient(135deg, #3d2b1f 0%, #1a0f05 40%, #2c1810 70%, #0d0804 100%);
}

.pc-motor {
  background: linear-gradient(135deg, #1a2a3a 0%, #0d1a2a 40%, #1b2838 70%, #0a1628 100%);
}

.pc-dyshi {
  background: linear-gradient(135deg, #2a1f3a 0%, #1a0f2e 40%, #2d1a3a 70%, #0f0a1a 100%);
}

.pc-retro {
  background: linear-gradient(135deg, #3a2a1a 0%, #1f140a 40%, #2e1f0d 70%, #120a04 100%);
}

.portfolio-card-body {
  padding: 20px 22px;
}

.portfolio-card-badge {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 600;
  padding: 2px 10px;
  background: rgba(99,102,241,0.12);
  color: var(--accent);
  border-radius: 100px;
  margin-bottom: 10px;
}

.portfolio-card-body h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 6px;
  letter-spacing: -0.02em;
}

.portfolio-card-body p {
  font-size: 0.82rem;
  color: var(--text2);
  line-height: 1.55;
  margin-bottom: 14px;
}

.portfolio-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.portfolio-tag {
  font-size: 0.68rem;
  font-weight: 500;
  padding: 2px 8px;
  background: rgba(255,255,255,0.04);
  color: var(--text3);
  border: 1px solid var(--border);
  border-radius: 100px;
}

/* ---- Products Grid ---- */
.products-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
}

.product-card {
  position: relative;
  display: block;
  padding: 36px 32px;
  background: rgba(255,255,255,0.015);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
  overflow: hidden;
}

.product-card:hover {
  transform: translateY(-6px);
  border-color: var(--border2);
  box-shadow: 0 20px 50px -20px rgba(99,102,241,0.15);
}

.product-card:hover .product-icon {
  background: rgba(99,102,241,0.18);
  transform: scale(1.05);
}

.product-card:hover .product-arrow {
  opacity: 1;
  transform: translateX(0);
}

.product-icon {
  font-size: 1.8rem;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(99,102,241,0.08);
  border-radius: var(--radius);
  margin-bottom: 20px;
  transition: all var(--transition);
}

.product-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.product-card > p {
  font-size: 0.85rem;
  color: var(--text2);
  line-height: 1.6;
  margin-bottom: 18px;
}

.product-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.product-tag {
  font-size: 0.7rem;
  font-weight: 500;
  padding: 3px 10px;
  background: rgba(99,102,241,0.08);
  color: var(--accent);
  border-radius: 100px;
}

.product-badge {
  display: inline-block;
  margin-top: 14px;
  font-size: 0.7rem;
  font-weight: 500;
  padding: 3px 10px;
  background: rgba(245,158,11,0.1);
  color: var(--amber);
  border-radius: 100px;
}

.product-arrow {
  position: absolute;
  top: 32px;
  right: 32px;
  font-size: 1.4rem;
  opacity: 0;
  transform: translateX(-8px);
  transition: all var(--transition);
  color: var(--accent);
}

/* ---- Testimonials ---- */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  padding: 32px 28px;
  background: rgba(255,255,255,0.015);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}

.testimonial-card:hover {
  border-color: var(--border2);
  transform: translateY(-4px);
}

.testimonial-stars {
  font-size: 1.1rem;
  letter-spacing: 3px;
  color: var(--amber);
  margin-bottom: 16px;
}

.testimonial-text {
  font-size: 0.9rem;
  color: var(--text2);
  line-height: 1.7;
  margin-bottom: 24px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 0.8rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.testimonial-author strong {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
}

.testimonial-author span {
  display: block;
  font-size: 0.75rem;
  color: var(--text3);
  margin-top: 2px;
}

/* ---- Review Form ---- */
.review-form-wrapper {
  margin-top: 48px;
  max-width: 600px;
}

.review-form-wrapper h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.review-form-wrapper .sub {
  font-size: 0.85rem;
  color: var(--text3);
  margin-bottom: 24px;
}

.review-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.review-stars-input {
  display: flex;
  gap: 4px;
}

.review-stars-input span {
  font-size: 1.8rem;
  color: var(--border2);
  cursor: pointer;
  transition: color 0.15s, transform 0.15s;
  user-select: none;
}

.review-stars-input span:hover,
.review-stars-input span.hover,
.review-stars-input span.active {
  color: var(--amber);
}

.review-stars-input span:hover { transform: scale(1.2); }

@media (max-width: 768px) {
  .review-form-row { grid-template-columns: 1fr; }
}

/* ---- Advantages ---- */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.advantage-card {
  padding: 32px 28px;
  background: rgba(255,255,255,0.015);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}

.advantage-card:hover {
  border-color: var(--border2);
  transform: translateY(-4px);
}

.advantage-icon {
  font-size: 1.6rem;
  margin-bottom: 16px;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(99,102,241,0.1);
  border-radius: var(--radius);
  color: var(--accent);
}

.advantage-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.advantage-card p {
  font-size: 0.85rem;
  color: var(--text2);
  line-height: 1.6;
}

/* ---- Team ---- */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.team-card {
  text-align: center;
  padding: 32px 20px;
  background: rgba(255,255,255,0.015);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}

.team-card:hover {
  border-color: var(--border2);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px -16px rgba(99,102,241,0.1);
}

.team-avatar {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
}

.team-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.team-role {
  font-size: 0.8rem;
  color: var(--text3);
  line-height: 1.5;
}

/* ---- Contact ---- */
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 48px;
  align-items: flex-start;
}

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

.contact-link {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  background: rgba(255,255,255,0.015);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
}

.contact-link:hover {
  border-color: var(--border2);
  background: rgba(255,255,255,0.03);
  transform: translateX(4px);
}

.contact-link-icon {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(99,102,241,0.1);
  color: var(--accent);
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.contact-link-info { display: flex; flex-direction: column; }
.contact-link-info strong { font-size: 0.9rem; font-weight: 600; }
.contact-link-info span { font-size: 0.78rem; color: var(--text3); }

.contact-form {
  background: rgba(255,255,255,0.015);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 36px 32px;
}

.contact-form h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.contact-form .sub {
  font-size: 0.85rem;
  color: var(--text3);
  margin-bottom: 28px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text2);
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.9rem;
  transition: all var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.1);
  background: rgba(99,102,241,0.03);
}

.form-group textarea {
  min-height: 110px;
  resize: vertical;
}

.form-group select option { background: var(--surface); color: var(--text); }

.form-submit { width: 100%; }

/* ---- Footer ---- */
.footer {
  padding: 60px 0 20px;
  border-top: 1px solid var(--border);
  background: linear-gradient(to top, rgba(6,6,11,1), rgba(6,6,11,0.95));
}

.footer-top {
  display: grid;
  grid-template-columns: 1.2fr 1.8fr;
  gap: 60px;
  margin-bottom: 40px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

.footer-logo img { width: 26px; height: 26px; border-radius: 5px; }

.footer-desc {
  font-size: 0.82rem;
  color: var(--text3);
  line-height: 1.6;
  max-width: 280px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-col strong {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text3);
  margin-bottom: 4px;
}

.footer-col a {
  font-size: 0.82rem;
  color: var(--text2);
  transition: color var(--transition);
}

.footer-col a:hover { color: #fff; }

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-copy {
  font-size: 0.78rem;
  color: var(--text3);
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-disclaimer {
  font-size: 0.72rem;
  color: var(--text3);
  opacity: 0.55;
  line-height: 1.5;
}

.footer-disclaimer a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.footer-disclaimer a:hover { color: var(--accent2); }

/* ============================================================
   ANIMATIONS
   ============================================================ */

/* ---- Fade Up on Scroll ---- */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Staggered reveal for grid children ---- */
.stats-row .stat-card:nth-child(1),
.products-grid > *:nth-child(1),
.advantages-grid > *:nth-child(1),
.team-grid > *:nth-child(1),
.services-grid > *:nth-child(1),
.tech-grid > *:nth-child(1),
.process-timeline > *:nth-child(1) { transition-delay: 0.05s; }

.stats-row .stat-card:nth-child(2),
.products-grid > *:nth-child(2),
.advantages-grid > *:nth-child(2),
.team-grid > *:nth-child(2),
.services-grid > *:nth-child(2),
.tech-grid > *:nth-child(2),
.process-timeline > *:nth-child(2) { transition-delay: 0.15s; }

.stats-row .stat-card:nth-child(3),
.products-grid > *:nth-child(3),
.advantages-grid > *:nth-child(3),
.team-grid > *:nth-child(3),
.services-grid > *:nth-child(3),
.tech-grid > *:nth-child(3),
.process-timeline > *:nth-child(3) { transition-delay: 0.25s; }

.stats-row .stat-card:nth-child(4),
.products-grid > *:nth-child(4),
.advantages-grid > *:nth-child(4),
.team-grid > *:nth-child(4),
.services-grid > *:nth-child(4),
.tech-grid > *:nth-child(4),
.process-timeline > *:nth-child(4) { transition-delay: 0.35s; }

.process-timeline > *:nth-child(5) { transition-delay: 0.45s; }
.tech-grid > *:nth-child(5) { transition-delay: 0.35s; }
.tech-grid > *:nth-child(6) { transition-delay: 0.4s; }
.tech-grid > *:nth-child(7) { transition-delay: 0.45s; }
.tech-grid > *:nth-child(8) { transition-delay: 0.5s; }

/* ---- Tilt effect (applied by JS) ---- */
.tilt-card {
  transform-style: preserve-3d;
  will-change: transform;
}

/* ---- Magnetic button effect (JS-driven) ---- */

/* ---- Glitch text utility ---- */

/* ---- Keyframes ---- */
@keyframes fadeInUp {
  0% { opacity: 0; transform: translateY(30px); }
  100% { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInScale {
  0% { opacity: 0; transform: scale(0.95); }
  100% { opacity: 1; transform: scale(1); }
}

/* ---- Text reveal on scroll (JS-driven) ---- */

/* ---- Particle background ---- */

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: 1fr 1fr; }
  .tech-grid { grid-template-columns: repeat(3, 1fr); }
  .team-grid { grid-template-columns: 1fr 1fr; }
  .advantages-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .process-step { grid-template-columns: 60px 1fr; gap: 24px; }
  .process-step-num { font-size: 2rem; }
  .products-grid { grid-template-columns: 1fr; }
  .portfolio-grid { grid-template-columns: 1fr 1fr; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .calc-options { grid-template-columns: 1fr; }
  .calc-options-check { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .section { padding: 80px 0; }
  .hero { padding: 100px 0 60px; min-height: auto; }

  .nav-links {
    position: fixed;
    inset: 0;
    background: rgba(6,6,11,0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    gap: 28px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
  }

  .nav-links.open {
    opacity: 1;
    visibility: visible;
  }

  .nav-links a {
    font-size: 1.2rem;
    font-weight: 600;
  }

  .nav-toggle { display: flex; }

  .services-grid { grid-template-columns: 1fr; }
  .tech-grid { grid-template-columns: 1fr 1fr; }
  .team-grid { grid-template-columns: 1fr 1fr; }
  .products-grid { grid-template-columns: 1fr; }
  .portfolio-grid { grid-template-columns: 1fr; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .contact-wrapper { grid-template-columns: 1fr; }

  .hero-stats { gap: 28px; }
  .hero-stat-value { font-size: 1.6rem; }

  .calculator-card { padding: 28px 20px; }

  .footer-top { grid-template-columns: 1fr; gap: 40px; }
  .footer-links { grid-template-columns: repeat(2, 1fr); }

  .footer .container { flex-direction: column; text-align: center; }
  .footer-right { justify-content: center; gap: 16px; }
}

@media (max-width: 480px) {
  .tech-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .hero-buttons { flex-direction: column; align-items: center; }
  .hero-buttons .btn { width: 100%; max-width: 280px; }
  .footer-links { grid-template-columns: 1fr; }
}

/* ---- Cookie Banner ---- */
.cookie-banner {
  position: fixed;
  bottom: -200px;
  left: 0;
  right: 0;
  z-index: 10000;
  padding: 16px 0;
  background: rgba(12, 12, 23, 0.97);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--border);
  transition: bottom 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.cookie-banner.visible { bottom: 0; }

.cookie-banner-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.cookie-banner-text {
  flex: 1;
  font-size: 0.82rem;
  color: var(--text2);
  line-height: 1.6;
}

.cookie-banner-text a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.cookie-banner-text a:hover { color: var(--accent2); }

.cookie-accept {
  flex-shrink: 0;
  white-space: nowrap;
}

@media (max-width: 768px) {
  .cookie-banner-container {
    flex-direction: column;
    gap: 14px;
    text-align: center;
  }
}

/* ---- VPN Warning Banner ---- */
.vpn-warning {
  position: fixed;
  top: -200px;
  left: 0;
  right: 0;
  z-index: 9999;
  padding: 12px 0;
  background: rgba(180, 30, 30, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(239, 68, 68, 0.3);
  transition: top 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.vpn-warning.visible { top: 0; }

.vpn-warning-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.vpn-warning-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
}

.vpn-warning p {
  flex: 1;
  font-size: 0.82rem;
  color: #fecaca;
  line-height: 1.5;
  margin: 0;
}

.vpn-warning a {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 2px;
  font-weight: 500;
}

.vpn-warning a:hover { color: #fecaca; }

.vpn-warning-close {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  font-size: 1.2rem;
  color: #fecaca;
  background: rgba(255,255,255,0.1);
  border: none;
  cursor: pointer;
  transition: background 0.2s;
}

.vpn-warning-close:hover { background: rgba(255,255,255,0.2); }

@media (max-width: 768px) {
  .vpn-warning-container {
    flex-wrap: wrap;
    gap: 8px;
  }
}