/* =============================================
   FULLMAN — Modern Homepage 2026
   Design: Glassmorphism + Gradient + Organic
   ============================================= */

/* ---------- CSS Variables ---------- */
:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --secondary: #06b6d4;
  --accent: #f59e0b;
  --success: #10b981;
  --bg-dark: #080c14;
  --bg-card: rgba(255, 255, 255, 0.04);
  --bg-glass: rgba(255, 255, 255, 0.07);
  --border-glass: rgba(255, 255, 255, 0.12);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --gradient-main: linear-gradient(135deg, #6366f1 0%, #06b6d4 100%);
  --gradient-hero: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #0c1a2e 100%);
  --font-main: 'Noto Sans KR', 'Inter', sans-serif;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --shadow-sm: 0 4px 16px 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);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --nav-h: 72px;
}

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

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

.section {
  padding: 100px 0;
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 3px; }

/* =============================================
   GLASS CARD
   ============================================= */
.glass-card {
  background: var(--bg-glass);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
}

/* =============================================
   BUTTONS
   ============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-main);
  color: #fff;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(99, 102, 241, 0.55);
}

.btn-ghost {
  background: var(--bg-glass);
  color: var(--text-primary);
  border: 1px solid var(--border-glass);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.12);
  transform: translateY(-2px);
}

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

/* =============================================
   GRADIENT TEXT
   ============================================= */
.gradient-text {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* =============================================
   SECTION LABELS / HEADERS
   ============================================= */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--secondary);
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.25);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 520px;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}
.section-header .section-desc { margin: 0 auto; }

/* =============================================
   REVEAL ANIMATIONS
   ============================================= */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal:nth-child(3) { transition-delay: 0.2s; }
.reveal:nth-child(4) { transition-delay: 0.3s; }
.reveal:nth-child(5) { transition-delay: 0.15s; }
.reveal:nth-child(6) { transition-delay: 0.25s; }

/* =============================================
   NAVBAR
   ============================================= */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-h);
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(8, 12, 20, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-glass);
  box-shadow: 0 4px 32px rgba(0,0,0,0.5);
}

.nav-container {
  max-width: 1200px;
  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: 10px;
  font-size: 1.3rem;
  font-weight: 900;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  transition: var(--transition);
}
.nav-logo:hover { opacity: 0.85; }

.logo-image {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  object-fit: cover;
  background: #fff;
  padding: 4px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.35);
}

.logo-image-wide {
  width: 200px;
  height: auto;
  border-radius: 12px;
  padding: 8px 10px;
}

.footer-logo {
  align-items: flex-start;
}

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

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-main);
  transition: width 0.3s ease;
  border-radius: 1px;
}
.nav-link:hover { color: var(--text-primary); }
.nav-link:hover::after { width: 100%; }

.nav-cta {
  background: var(--gradient-main);
  color: #fff !important;
  padding: 8px 20px;
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 14px rgba(99,102,241,0.4);
}
.nav-cta::after { display: none; }
.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(99,102,241,0.55);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}
.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); }

/* =============================================
   HERO SECTION
   ============================================= */
.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 48px;
  padding: calc(var(--nav-h) + 60px) 24px 80px;
  max-width: 1200px;
  margin: 0 auto;
  overflow: hidden;
}

/* Orb background */
.hero-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  overflow: hidden;
  background: var(--gradient-hero);
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: float 8s ease-in-out infinite;
}
.orb-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(99,102,241,0.35) 0%, transparent 70%);
  top: -100px; left: -100px;
  animation-delay: 0s;
}
.orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(6,182,212,0.3) 0%, transparent 70%);
  top: 40%; right: -80px;
  animation-delay: 3s;
}
.orb-3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(139,92,246,0.25) 0%, transparent 70%);
  bottom: 10%; left: 30%;
  animation-delay: 5s;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black, transparent);
}

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

.hero-content {
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(99, 102, 241, 0.15);
  border: 1px solid rgba(99, 102, 241, 0.35);
  color: #a5b4fc;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 7px 16px;
  border-radius: 100px;
  margin-bottom: 24px;
  animation: fadeSlideDown 0.8s ease forwards;
}
.hero-badge i { color: var(--accent); }

.hero-title {
  font-size: clamp(2.2rem, 5.5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  animation: fadeSlideUp 0.8s 0.1s ease both;
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 36px;
  animation: fadeSlideUp 0.8s 0.2s ease both;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 52px;
  animation: fadeSlideUp 0.8s 0.3s ease both;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  animation: fadeSlideUp 0.8s 0.4s ease both;
}

.stat-item {
  display: flex;
  flex-direction: column;
}
.stat-num {
  font-size: 2rem;
  font-weight: 900;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.stat-unit {
  font-size: 1rem;
  font-weight: 700;
  color: var(--secondary);
}
.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
}

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

/* Hero Visual */
.hero-visual {
  z-index: 1;
  animation: fadeSlideUp 1s 0.3s ease both;
}

.server-card {
  padding: 20px;
  overflow: hidden;
}

.server-lights {
  display: flex;
  gap: 6px;
  margin-bottom: 12px;
}
.light {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.light.green { background: #10b981; box-shadow: 0 0 8px #10b981; animation: blink 2s infinite; }
.light.yellow { background: var(--accent); box-shadow: 0 0 8px var(--accent); animation: blink 2s 0.5s infinite; }

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.server-media {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 16px;
}

.server-img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  border-radius: var(--radius-md);
  transform: scale(1);
  animation: subtleZoom 10s ease-in-out infinite;
}

.server-video-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  mix-blend-mode: screen;
}

.scanline {
  position: absolute;
  left: -10%;
  width: 120%;
  height: 22px;
  background: linear-gradient(90deg, transparent, rgba(6,182,212,0.35), transparent);
  filter: blur(1px);
  animation: scanMove 3.2s linear infinite;
}

.scanline-2 {
  height: 12px;
  opacity: 0.7;
  animation-duration: 4.4s;
  animation-delay: 1.2s;
}

.glow-ring {
  position: absolute;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  border: 1px solid rgba(99,102,241,0.4);
  box-shadow: 0 0 30px rgba(99,102,241,0.35);
  top: 20%;
  left: 60%;
  animation: ringFloat 6s ease-in-out infinite;
}

.glitch {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    rgba(255,255,255,0.06) 0,
    rgba(255,255,255,0.06) 1px,
    transparent 1px,
    transparent 3px
  );
  opacity: 0.35;
  animation: glitchFlicker 2.8s steps(2) infinite;
}

@keyframes scanMove {
  0% { transform: translateY(-40px); opacity: 0; }
  30% { opacity: 0.9; }
  100% { transform: translateY(240px); opacity: 0; }
}

@keyframes ringFloat {
  0%, 100% { transform: translate(-10px, 0) scale(1); }
  50% { transform: translate(10px, -12px) scale(1.08); }
}

@keyframes glitchFlicker {
  0%, 100% { opacity: 0.2; }
  50% { opacity: 0.5; }
}

@keyframes subtleZoom {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.04); }
}

.server-info { padding: 0 4px; }

.server-label {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.pulse-green {
  color: #10b981;
  animation: blink 1.5s infinite;
}

.bar-row {
  display: grid;
  grid-template-columns: 36px 1fr 36px;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.bar {
  height: 5px;
  background: rgba(255,255,255,0.1);
  border-radius: 100px;
  overflow: hidden;
}
.bar-fill {
  height: 100%;
  width: var(--w);
  background: var(--gradient-main);
  border-radius: 100px;
  transform-origin: left;
  animation: barGrow 1.5s ease forwards, barPulse 3.6s ease-in-out infinite 1.6s;
}
@keyframes barGrow {
  from { width: 0; }
  to { width: var(--w); }
}

@keyframes barPulse {
  0%, 100% { transform: scaleX(1); }
  50% { transform: scaleX(0.86); }
}

.scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 40px;
  border: 1px solid var(--border-glass);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  animation: bounce 2s infinite;
  grid-column: 1 / -1;
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeSlideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* =============================================
   ABOUT SECTION
   ============================================= */
.about {
  background: transparent;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-image {
  position: relative;
}

.img-wrapper {
  overflow: hidden;
  padding: 8px;
}
.img-wrapper img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  border-radius: var(--radius-md);
  transition: transform 0.5s ease;
}
.img-wrapper:hover img { transform: scale(1.03); }

.floating-badge {
  position: absolute;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.78rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text-primary);
  box-shadow: var(--shadow-md);
}
.badge-tl { top: -20px; left: -20px; border-radius: var(--radius-md); }
.badge-br { bottom: -20px; right: -20px; border-radius: var(--radius-md); }
.floating-badge i { font-size: 1.4rem; }

.about-text {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 16px;
  line-height: 1.85;
}
.about-text strong { color: var(--text-primary); }

.about-features {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 32px;
}

.feature-chip {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(99,102,241,0.1);
  border: 1px solid rgba(99,102,241,0.25);
  color: #a5b4fc;
  padding: 7px 14px;
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 500;
}
.feature-chip i { color: var(--success); font-size: 0.7rem; }

/* =============================================
   SERVICES SECTION
   ============================================= */
.services {
  position: relative;
}

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

.service-card {
  padding: 32px 28px;
  transition: var(--transition);
}
.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255,255,255,0.2);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

.service-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--clr) 15%, transparent);
  border: 1px solid color-mix(in srgb, var(--clr) 30%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--clr);
  margin-bottom: 20px;
}

.service-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.service-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 20px;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--secondary);
  transition: var(--transition);
}
.service-link:hover { gap: 10px; color: var(--primary); }

/* =============================================
   CI SECTION
   ============================================= */
.ci {
  position: relative;
}

.ci-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 28px;
}

.ci-card {
  padding: 28px;
  text-align: center;
}

.ci-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 14px;
}

.ci-logo {
  width: 160px;
  height: 160px;
  margin: 0 auto 16px;
  object-fit: contain;
  background: #fff;
  border-radius: 20px;
  padding: 12px;
}

.ci-logotype {
  width: 100%;
  max-width: 420px;
  margin: 0 auto 16px;
  object-fit: contain;
  background: #fff;
  border-radius: 16px;
  padding: 12px 16px;
}

.ci-signature {
  display: grid;
  grid-template-columns: 120px 1fr;
  align-items: center;
  gap: 16px;
  background: rgba(15,23,42,0.6);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  padding: 16px;
  margin-bottom: 16px;
}

.ci-signature img:first-child {
  width: 100px;
  height: 100px;
  object-fit: contain;
  background: #fff;
  border-radius: 16px;
  padding: 10px;
}

.ci-signature img:last-child {
  width: 100%;
  max-width: 320px;
  object-fit: contain;
  background: #fff;
  border-radius: 12px;
  padding: 10px 12px;
}

.ci-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.ci-actions {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 14px;
  flex-wrap: wrap;
}

.ci-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-primary);
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(15,23,42,0.6);
  transition: var(--transition);
}

.ci-download:hover {
  transform: translateY(-2px);
  border-color: rgba(99,102,241,0.5);
  box-shadow: 0 8px 20px rgba(0,0,0,0.35);
}

.ci-colors {
  padding: 24px;
}

.ci-colors h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 14px;
}

.ci-color-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.ci-color {
  background: rgba(15,23,42,0.6);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 14px;
  padding: 16px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.ci-color::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--ci), transparent 70%);
  opacity: 0.5;
}

.ci-color span,
.ci-color small {
  position: relative;
  z-index: 1;
  display: block;
}

.ci-color span {
  font-weight: 700;
  margin-bottom: 6px;
}

.ci-color small {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.ci-rules {
  padding: 24px;
  margin-top: 24px;
}

.ci-rules h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 14px;
}

.ci-clearspace {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 18px;
  align-items: center;
}

.ci-clearspace-figure {
  position: relative;
  border-radius: 16px;
  border: 1px dashed rgba(255,255,255,0.2);
  background: rgba(15,23,42,0.55);
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ci-clearspace-pad {
  border: 1px dashed rgba(99,102,241,0.6);
  padding: 16px;
  border-radius: 12px;
  background: #fff;
}

.ci-clearspace-pad img {
  width: 90px;
  height: 90px;
  object-fit: contain;
  display: block;
}

.ci-clearspace-label {
  position: absolute;
  top: 8px;
  right: 12px;
  font-size: 0.75rem;
  font-weight: 700;
  color: #93c5fd;
}

/* =============================================
   PRODUCTS SECTION
   ============================================= */
.products {
  position: relative;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.product-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}
.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(255,255,255,0.2);
}

.product-img-wrap {
  position: relative;
  overflow: hidden;
  height: 220px;
}
.product-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.product-card:hover .product-img-wrap img { transform: scale(1.06); }

.product-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--gradient-main);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 4px 10px;
  border-radius: 100px;
}

.product-info { padding: 24px; }

.product-info h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.product-info p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.product-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}
.product-specs span {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.77rem;
  color: var(--text-secondary);
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-glass);
  padding: 4px 10px;
  border-radius: 100px;
}
.product-specs i { color: var(--primary); font-size: 0.7rem; }

/* =============================================
   WHY US SECTION
   ============================================= */
.why-us {
  position: relative;
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.why-card {
  padding: 36px 28px;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}
.why-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient-main);
  transform: scaleX(0);
  transition: transform 0.4s ease;
  transform-origin: left;
}
.why-card:hover::before { transform: scaleX(1); }
.why-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255,255,255,0.2);
}

.why-number {
  font-size: 3rem;
  font-weight: 900;
  color: rgba(255,255,255,0.04);
  position: absolute;
  top: 16px;
  right: 20px;
  line-height: 1;
  font-family: 'Inter', sans-serif;
}

.why-icon {
  font-size: 1.8rem;
  margin-bottom: 16px;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.why-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.why-card p {
  font-size: 0.87rem;
  color: var(--text-secondary);
  line-height: 1.75;
}

/* =============================================
   CONTACT SECTION
   ============================================= */
.contact {
  position: relative;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  align-items: start;
}

.contact-desc {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 40px;
}

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

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.contact-icon {
  width: 40px;
  height: 40px;
  background: rgba(99,102,241,0.15);
  border: 1px solid rgba(99,102,241,0.3);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 0.95rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.contact-item-label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 3px;
}
.contact-item-value {
  font-size: 0.95rem;
  color: var(--text-primary);
  font-weight: 500;
  transition: color 0.2s;
}
a.contact-item-value:hover { color: var(--secondary); }

/* Form */
.contact-form-wrap { padding: 36px; }

.contact-form { display: flex; flex-direction: column; gap: 18px; }

.form-group { display: flex; flex-direction: column; gap: 7px; }

.form-group label {
  font-size: 0.83rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: 0.9rem;
  color: var(--text-primary);
  font-family: var(--font-main);
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}
.form-group select {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%2394a3b8' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  padding-right: 40px;
  cursor: pointer;
}
.form-group select option { background: #1e293b; color: var(--text-primary); }

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

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.2);
}

.form-group textarea { resize: vertical; min-height: 100px; }

/* =============================================
   FOOTER
   ============================================= */
.footer {
  background: rgba(0,0,0,0.5);
  border-top: 1px solid var(--border-glass);
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border-glass);
}

.footer-tagline {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.footer-links h4,
.footer-contact h4 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.footer-links ul { display: flex; flex-direction: column; gap: 10px; }
.footer-links a {
  font-size: 0.88rem;
  color: var(--text-secondary);
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--secondary); }

.footer-contact p {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
  line-height: 1.5;
}
.footer-contact i { color: var(--primary); flex-shrink: 0; margin-top: 3px; }

.footer-bottom {
  padding: 20px 0;
  text-align: center;
}
.footer-legal, .footer-copy {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.8;
}

/* =============================================
   BACK TO TOP
   ============================================= */
.back-to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 44px;
  height: 44px;
  background: var(--gradient-main);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  box-shadow: 0 4px 20px rgba(99,102,241,0.5);
  transition: var(--transition);
  opacity: 0;
  pointer-events: none;
  z-index: 999;
}
.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}
.back-to-top:hover { transform: translateY(-3px); box-shadow: 0 8px 28px rgba(99,102,241,0.6); }

/* =============================================
   RESPONSIVE — TABLET (≤1024px)
   ============================================= */
@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 48px;
    padding-bottom: 80px;
  }

  .hero-buttons { justify-content: center; }
  .hero-stats { justify-content: center; }

  .hero-visual {
    max-width: 480px;
    margin: 0 auto;
  }

  .scroll-hint { bottom: 20px; }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .about-image { max-width: 560px; margin: 0 auto; }

  .services-grid { grid-template-columns: repeat(2, 1fr); }

  .products-grid { grid-template-columns: repeat(2, 1fr); }

  .why-grid { grid-template-columns: repeat(2, 1fr); }

  .ci-grid { grid-template-columns: 1fr; }
  .ci-color-grid { grid-template-columns: 1fr; }
  .ci-clearspace { grid-template-columns: 1fr; }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

/* =============================================
   RESPONSIVE — MOBILE (≤768px)
   ============================================= */
@media (max-width: 768px) {
  :root { --nav-h: 64px; }

  .section { padding: 72px 0; }

  /* Nav */
  .nav-menu {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(8, 12, 20, 0.97);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-glass);
    padding: 16px 24px;
    transform: translateY(-100%);
    opacity: 0;
    transition: transform 0.35s ease, opacity 0.35s ease;
    pointer-events: none;
  }
  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-link {
    padding: 14px 0;
    border-bottom: 1px solid var(--border-glass);
    font-size: 1rem;
    color: var(--text-primary);
  }
  .nav-link:last-child { border-bottom: none; }
  .nav-link::after { display: none; }
  .nav-cta {
    margin-top: 8px;
    text-align: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    padding: 12px;
  }

  .nav-toggle { display: flex; }

  /* Hero */
  .hero {
    padding-top: calc(var(--nav-h) + 40px);
    gap: 40px;
  }

  .hero-title { font-size: 2rem; }
  .hero-desc { font-size: 0.95rem; }

  .hero-buttons {
    flex-direction: column;
    gap: 12px;
  }
  .hero-buttons .btn { justify-content: center; }

  .hero-stats { gap: 20px; }
  .stat-num { font-size: 1.5rem; }

  /* Services */
  .services-grid { grid-template-columns: 1fr; }

  /* Products */
  .products-grid { grid-template-columns: 1fr; }

  /* Why */
  .why-grid { grid-template-columns: 1fr; }

  /* CI */
  .ci-signature { grid-template-columns: 1fr; }

  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .hide-mobile { display: none; }
}

/* =============================================
   RESPONSIVE — SMALL MOBILE (≤480px)
   ============================================= */
@media (max-width: 480px) {
  .container { padding: 0 16px; }

  .hero-title { font-size: 1.7rem; }

  .section-title { font-size: 1.6rem; }

  .hero-stats {
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
  }
  .stat-divider { display: none; }

  .contact-form-wrap { padding: 24px 20px; }

  .badge-tl { top: 0; left: 0; }
  .badge-br { bottom: 0; right: 0; }

  .footer-legal { font-size: 0.72rem; }
}

/* =============================================
   ACCESSIBILITY: Reduced Motion
   ============================================= */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .hero-orb { animation: none; }
  .scroll-hint { animation: none; }
  .bar-fill { animation: none; width: var(--w); transform: none; }
  .server-img { animation: none; }
}