/* ============================================
   Global Integral Supply - Linear-style Theme
   ============================================ */

:root {
  --bg-primary: #09090B;
  --bg-secondary: #111113;
  --bg-tertiary: #18181B;
  --bg-elevated: #1C1C1F;

  --border: #27272A;
  --border-subtle: #1C1C1F;

  --text-primary: #FAFAFA;
  --text-secondary: #A1A1AA;
  --text-tertiary: #71717A;

  --accent: #00D4FF;
  --accent-glow: rgba(0, 212, 255, 0.15);
  --accent-green: #22C55E;

  --font-display: 'Outfit', sans-serif;
  --font-body: 'DM Sans', sans-serif;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.76, 0, 0.24, 1);
}

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

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

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-secondary);
  line-height: 1.6;
  overflow-x: hidden;
}

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

ul { list-style: none; }
img { max-width: 100%; display: block; }
hr { border: none; border-top: 1px solid var(--border); }

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

/* Noise Overlay */
.noise {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9999;
  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='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
}

/* Reveal Animation */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

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

/* ============================================
   Navigation
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 24px;
  transition: background 0.3s, border-color 0.3s, backdrop-filter 0.3s;
  border-bottom: 1px solid transparent;
}

.nav.scrolled {
  background: rgba(9, 9, 11, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--border);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--text-primary);
  font-size: 15px;
  letter-spacing: -0.02em;
}

.nav-logo-img {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

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

.nav-links a {
  font-size: 14px;
  color: var(--text-tertiary);
  transition: color 0.2s;
  font-weight: 400;
}

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

.nav-cta {
  padding: 8px 18px !important;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary) !important;
  transition: background 0.2s, border-color 0.2s !important;
}

.nav-cta:hover {
  background: var(--bg-tertiary);
  border-color: var(--text-tertiary);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--text-secondary);
  transition: transform 0.3s, opacity 0.3s;
}

/* ============================================
   Hero
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

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

.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(9, 9, 11, 0.6) 0%,
    rgba(9, 9, 11, 0.75) 40%,
    rgba(9, 9, 11, 0.92) 75%,
    rgba(9, 9, 11, 1) 100%
  );
}

.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: 64px 64px;
  mask-image: radial-gradient(ellipse at 50% 30%, black 10%, transparent 60%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 30%, black 10%, transparent 60%);
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 120px 24px 80px;
  max-width: 880px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(28, 28, 31, 0.8);
  border: 1px solid rgba(39, 39, 42, 0.8);
  border-radius: 100px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  font-weight: 400;
  backdrop-filter: blur(8px);
}

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

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

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(40px, 7vw, 72px);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.035em;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.hero-line {
  display: block;
}

.hero-title em {
  font-style: normal;
  background: linear-gradient(135deg, var(--accent), var(--accent-green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: clamp(16px, 2vw, 19px);
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.7;
  font-weight: 300;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 64px;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 12px 24px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  font-family: var(--font-body);
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--text-primary);
  color: var(--bg-primary);
}

.btn-primary:hover {
  background: #E4E4E7;
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  backdrop-filter: blur(8px);
}

.btn-ghost:hover {
  border-color: var(--text-tertiary);
  color: var(--text-primary);
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
}

.stat {
  text-align: center;
}

.stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 13px;
  color: var(--text-tertiary);
  margin-top: 4px;
  display: block;
}

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

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}

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

@keyframes scrollDown {
  0% { opacity: 0; transform: scaleY(0); transform-origin: top; }
  50% { opacity: 1; transform: scaleY(1); transform-origin: top; }
  50.01% { transform-origin: bottom; }
  100% { opacity: 0; transform: scaleY(0); transform-origin: bottom; }
}

/* ============================================
   Sections (shared)
   ============================================ */
.section {
  padding: 120px 0;
}

.section-label {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 24px;
}

.label-line {
  width: 24px;
  height: 1px;
  background: var(--accent);
}

.section-heading {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.text-accent {
  background: linear-gradient(135deg, var(--accent), var(--accent-green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================
   Image Breaks
   ============================================ */
.image-break {
  position: relative;
  height: 320px;
  overflow: hidden;
}

.image-break img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.image-break-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    var(--bg-primary) 0%,
    rgba(9, 9, 11, 0.3) 20%,
    rgba(9, 9, 11, 0.3) 80%,
    var(--bg-primary) 100%
  );
}

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

.about-image {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.about-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}

.about-image:hover img {
  transform: scale(1.03);
}

.about-right .section-heading {
  margin-bottom: 32px;
}

.about-body p {
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.about-body p:last-child {
  margin-bottom: 0;
}

/* ============================================
   Services
   ============================================ */
.services .section-heading {
  margin-bottom: 64px;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}

.service-card {
  background: var(--bg-secondary);
  padding: 40px 32px;
  transition: background 0.3s;
}

.service-card:hover {
  background: var(--bg-tertiary);
}

.card-number {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 20px;
  letter-spacing: 0.05em;
}

.card-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.card-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.card-list li {
  font-size: 13px;
  color: var(--text-tertiary);
  padding: 6px 0;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-list li::before {
  content: '';
  width: 4px;
  height: 4px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
}

/* ============================================
   Detail Section (Administrative)
   ============================================ */
.detail-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
}

.detail-desc {
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-secondary);
  margin-top: 24px;
}

.detail-image {
  margin-top: 32px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.detail-image img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}

.detail-image:hover img {
  transform: scale(1.03);
}

.detail-block {
  margin-bottom: 40px;
}

.detail-block:last-child {
  margin-bottom: 0;
}

.detail-block h4 {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.detail-items {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.detail-items span {
  padding: 6px 14px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  transition: border-color 0.2s, color 0.2s;
}

.detail-items span:hover {
  border-color: var(--accent);
  color: var(--text-primary);
}

/* ============================================
   Procurement
   ============================================ */
.procurement .section-heading {
  margin-bottom: 64px;
}

.procurement-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}

.proc-heading {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}

.proc-list li {
  font-size: 14px;
  color: var(--text-secondary);
  padding: 10px 0;
  border-bottom: 1px solid var(--border-subtle);
}

.proc-list li:last-child {
  border-bottom: none;
}

/* ============================================
   Contact
   ============================================ */
.contact {
  position: relative;
  padding-bottom: 80px;
  overflow: hidden;
}

.contact-image-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 400px;
  z-index: 0;
}

.contact-image-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.contact-image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(9, 9, 11, 0.4) 0%,
    rgba(9, 9, 11, 0.85) 50%,
    var(--bg-primary) 100%
  );
}

.contact .container {
  position: relative;
  z-index: 1;
}

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
}

.contact-block {
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
}

.contact-block:first-child {
  border-top: 1px solid var(--border);
}

.contact-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.contact-value {
  font-size: 16px;
  color: var(--text-primary);
  line-height: 1.6;
  display: block;
}

.contact-link {
  transition: color 0.2s;
}

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

/* ============================================
   Footer
   ============================================ */
.footer {
  border-top: 1px solid var(--border);
  padding: 24px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-logo-img {
  width: 28px;
  height: 28px;
  object-fit: contain;
}

.footer-copy {
  font-size: 13px;
  color: var(--text-tertiary);
}

.footer-right a {
  font-size: 13px;
  color: var(--text-tertiary);
  transition: color 0.2s;
}

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

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 900px) {
  .nav-links {
    display: none;
    position: fixed;
    inset: 0;
    top: 64px;
    background: rgba(9, 9, 11, 0.95);
    backdrop-filter: blur(16px);
    border-top: 1px solid var(--border);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 24px;
    padding: 40px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    font-size: 18px;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.open span:first-child {
    transform: rotate(45deg) translate(2px, 2px);
  }

  .nav-toggle.open span:last-child {
    transform: rotate(-45deg) translate(2px, -2px);
  }

  .about-grid,
  .services-grid {
    grid-template-columns: 1fr;
  }

  .about-image img {
    height: 300px;
  }

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

  .procurement-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-stats {
    flex-direction: column;
    gap: 20px;
  }

  .stat-divider {
    width: 40px;
    height: 1px;
  }

  .section {
    padding: 80px 0;
  }

  .image-break {
    height: 220px;
  }

  .footer-inner {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .footer-left {
    flex-direction: column;
    gap: 12px;
  }
}

@media (max-width: 600px) {
  .hero-actions {
    flex-direction: column;
  }

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

  .image-break {
    height: 180px;
  }
}