/* ===================================================================
   Seamless ICT — Stylesheet
   Theme: Sky Blue / Black / White — elegant, light, animated
=================================================================== */

:root {
  --sky: #0ea5e9;
  --sky-light: #7dd3fc;
  --sky-pale: #e0f6ff;
  --sky-dark: #0369a1;
  --ink: #0a0e14;
  --ink-soft: #131924;
  --grey: #5b6472;
  --grey-light: #8b94a3;
  --line: #e7ecf2;
  --white: #ffffff;
  --off-white: #f6f9fc;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 26px;

  --shadow-sm: 0 2px 10px rgba(10, 14, 20, 0.06);
  --shadow-md: 0 10px 30px rgba(10, 14, 20, 0.08);
  --shadow-lg: 0 25px 60px rgba(10, 14, 20, 0.14);
  --shadow-sky: 0 15px 40px rgba(14, 165, 233, 0.25);

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --font-heading: 'Poppins', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

/* Baseline size for every icon() svg — always set, contextual rules below override it */
.icon { width: 20px; height: 20px; flex-shrink: 0; }

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  color: var(--ink);
}

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 110px 0; position: relative; }
.section-alt { background: var(--off-white); }

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--sky-dark);
  background: var(--sky-pale);
  padding: 7px 16px;
  border-radius: 999px;
  margin-bottom: 18px;
}
.section-tag .icon { width: 15px; height: 15px; }

.section-head { max-width: 640px; margin-bottom: 56px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head h2 { font-size: clamp(28px, 3.6vw, 42px); margin-bottom: 16px; }
.section-head p { color: var(--grey); font-size: 17px; }

.text-gradient {
  background: linear-gradient(100deg, var(--sky-dark), var(--sky) 55%, var(--sky-light));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 30px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), background 0.35s var(--ease), color 0.35s var(--ease);
  white-space: nowrap;
}
.btn .icon { width: 17px; height: 17px; }
.btn-primary {
  background: linear-gradient(120deg, var(--sky-dark), var(--sky));
  color: var(--white);
  box-shadow: var(--shadow-sky);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 20px 45px rgba(14,165,233,0.35); }
.btn-dark {
  background: var(--ink);
  color: var(--white);
}
.btn-dark:hover { transform: translateY(-3px); background: var(--ink-soft); }
.btn-outline {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid var(--line);
}
.btn-outline:hover { border-color: var(--sky); color: var(--sky-dark); transform: translateY(-3px); }
.btn-ghost-white {
  background: rgba(255,255,255,0.08);
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.35);
  backdrop-filter: blur(6px);
}
.btn-ghost-white:hover { background: rgba(255,255,255,0.18); transform: translateY(-3px); }
.btn-sm { padding: 10px 20px; font-size: 13px; }

/* ---------- Preloader ---------- */
#preloader {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--ink);
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}
#preloader.hidden { opacity: 0; visibility: hidden; }
.loader-mark {
  width: 54px; height: 54px;
  border-radius: 50%;
  border: 3px solid rgba(125,211,252,0.2);
  border-top-color: var(--sky);
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Header ---------- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 22px 0;
  transition: all 0.4s var(--ease);
}
.site-header.scrolled {
  padding: 12px 0;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-sm);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; }

.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-heading); font-weight: 700; font-size: 20px; }
.brand .logo-mark { width: 40px; height: 40px; flex-shrink: 0; }
.brand-text { display: flex; flex-direction: column; line-height: 1.05; }
.brand .brand-name {
  font-family: 'Orbitron', var(--font-heading); font-weight: 800; font-size: 17px;
  letter-spacing: 0.03em; color: var(--white); transition: color 0.4s var(--ease);
}
.site-header.scrolled .brand .brand-name { color: var(--ink); }
.brand-tagline {
  font-family: 'Orbitron', var(--font-body); font-size: 9.5px; font-weight: 600;
  letter-spacing: 0.24em; text-transform: uppercase; color: var(--sky-light);
  margin-top: 3px; transition: color 0.4s var(--ease);
}
.site-header.scrolled .brand-tagline { color: var(--sky-dark); }
.footer-brand .brand-tagline { color: var(--sky-light); }

.nav-links { display: flex; align-items: center; gap: 36px; }
.nav-links a {
  font-size: 14.5px; font-weight: 500; color: rgba(255,255,255,0.88);
  position: relative; padding: 6px 0; transition: color 0.4s var(--ease);
}
.site-header.scrolled .nav-links a { color: var(--ink); }
.nav-links a::after {
  content: ''; position: absolute; left: 0; bottom: 0; height: 2px; width: 0;
  background: var(--sky); transition: width 0.3s var(--ease);
}
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-toggle span { background: var(--white); }
.site-header.scrolled .nav-toggle span { background: var(--ink); }
.nav-links .dropdown { position: relative; }
.nav-links .dropdown-menu {
  position: absolute; top: calc(100% + 18px); left: 50%; transform: translateX(-50%) translateY(8px);
  background: var(--white); border-radius: var(--radius-md); box-shadow: var(--shadow-lg);
  padding: 10px; min-width: 240px; opacity: 0; visibility: hidden;
  transition: all 0.3s var(--ease); border: 1px solid var(--line);
}
.nav-links .dropdown:hover .dropdown-menu { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.dropdown-menu a {
  display: flex; align-items: center; gap: 10px; padding: 11px 14px; border-radius: var(--radius-sm);
  font-size: 14px; color: var(--ink-soft);
}
.dropdown-menu .icon { width: 18px; height: 18px; }
.dropdown-menu a::after { display: none; }
.dropdown-menu a:hover { background: var(--sky-pale); color: var(--sky-dark); }

.header-actions { display: flex; align-items: center; gap: 18px; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; width: 26px; z-index: 1100; }
.nav-toggle span { height: 2px; background: var(--ink); border-radius: 2px; transition: all 0.3s var(--ease); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: calc(100vh - 92px);
  display: flex; align-items: center;
  padding-top: 96px;
  background: var(--ink);
  overflow: hidden;
}
.hero-bg-grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(125,211,252,0.06) 1px, transparent 1px), linear-gradient(90deg, rgba(125,211,252,0.06) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 40%, transparent 100%);
}
.hero-glow {
  position: absolute; border-radius: 50%; filter: blur(90px); opacity: 0.55; pointer-events: none;
}
.hero-glow.one { width: 480px; height: 480px; background: var(--sky); top: -140px; right: -80px; animation: float 9s ease-in-out infinite; }
.hero-glow.two { width: 360px; height: 360px; background: #0369a1; bottom: -140px; left: -60px; animation: float 11s ease-in-out infinite reverse; }
@keyframes float {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(30px, -25px); }
}
.hero .container {
  position: relative; z-index: 2; padding-bottom: 36px;
  display: flex; align-items: center; justify-content: space-between; gap: 40px;
}
.hero-content { max-width: 540px; flex: 1 1 420px; min-width: 0; }
.hero-content .section-tag { background: rgba(125,211,252,0.12); color: var(--sky-light); }
.hero-content h1 {
  color: var(--white);
  font-size: clamp(26px, 3.4vw, 38px);
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}
.hero-content p {
  color: rgba(255,255,255,0.72);
  font-size: 15.5px;
  max-width: 480px;
  margin-bottom: 26px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 42px; }
.hero-actions .btn { padding: 12px 24px; font-size: 14px; }

.hero-stats { display: grid; grid-template-columns: repeat(4, auto); gap: 30px; }
.hero-stats .stat h3 {
  color: var(--white); font-size: 22px; margin-bottom: 3px;
}
.hero-stats .stat span { color: rgba(255,255,255,0.55); font-size: 12px; letter-spacing: 0.02em; }

.scroll-cue {
  position: absolute; bottom: 20px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: rgba(255,255,255,0.55); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase;
}
.scroll-cue .line { width: 1px; height: 24px; background: linear-gradient(var(--sky), transparent); animation: scrollcue 1.8s ease-in-out infinite; }
@keyframes scrollcue { 0% { opacity: 0.2; } 50% { opacity: 1; } 100% { opacity: 0.2; } }

/* ---------- Hero visual (animated network + terminal card) ---------- */
.hero-visual {
  position: relative;
  width: 560px; height: 560px;
  flex: 0 0 560px;
  opacity: 0;
  transform: translate(28px, -30px);
  animation: hero-visual-in 1s var(--ease) 0.3s forwards;
}
@keyframes hero-visual-in { to { opacity: 1; } }
.hero-visual canvas { position: absolute; inset: 0; width: 100%; height: 100%; }

.hero-float-card {
  position: absolute;
  background: rgba(19, 25, 36, 0.72);
  border: 1px solid rgba(125, 211, 252, 0.18);
  border-radius: var(--radius-md);
  backdrop-filter: blur(10px);
  box-shadow: 0 20px 50px rgba(0,0,0,0.35);
}
.hero-float-terminal {
  left: -12px; bottom: 22px; width: 248px; padding: 14px 16px;
  animation: float 7s ease-in-out infinite;
}
.terminal-dots { display: flex; gap: 6px; margin-bottom: 12px; }
.terminal-dots span { width: 8px; height: 8px; border-radius: 50%; background: rgba(255,255,255,0.18); }
.terminal-dots span:nth-child(1) { background: #f97066; }
.terminal-dots span:nth-child(2) { background: #f7b955; }
.terminal-dots span:nth-child(3) { background: #3ecf6e; }
.terminal-line {
  font-family: 'SFMono-Regular', 'Menlo', 'Consolas', monospace;
  font-size: 12.5px; color: var(--sky-light); white-space: nowrap; overflow: hidden;
}
.terminal-prompt { color: rgba(255,255,255,0.4); margin-right: 6px; }
.terminal-cursor { background: var(--sky-light); animation: blink 1s step-end infinite; margin-left: 1px; }
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

@media (max-width: 1100px) {
  .hero-visual { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-visual, .hero-float-terminal, .terminal-cursor, .hero-glow, .marquee-track, .scroll-cue .line {
    animation: none !important;
  }
  .hero-visual { opacity: 1; }
}

/* ---------- Reveal animations ---------- */
.reveal { opacity: 0; transform: translateY(34px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.in-view { opacity: 1; transform: translateY(0); }
.reveal-stagger.in-view > * { opacity: 1; transform: translateY(0); }
.reveal-stagger > * { opacity: 0; transform: translateY(24px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal-stagger > *:nth-child(1) { transition-delay: 0.05s; }
.reveal-stagger > *:nth-child(2) { transition-delay: 0.15s; }
.reveal-stagger > *:nth-child(3) { transition-delay: 0.25s; }
.reveal-stagger > *:nth-child(4) { transition-delay: 0.35s; }
.reveal-stagger > *:nth-child(5) { transition-delay: 0.45s; }
.reveal-stagger > *:nth-child(6) { transition-delay: 0.55s; }

/* ---------- Marquee (trusted-by strip) ---------- */
.marquee-strip { background: var(--off-white); padding: 34px 0; border-bottom: 1px solid var(--line); overflow: hidden; }
.marquee-track { display: flex; gap: 70px; width: max-content; animation: marquee 26s linear infinite; }
.marquee-track span { font-family: var(--font-heading); font-weight: 600; font-size: 18px; color: var(--grey-light); white-space: nowrap; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ---------- About ---------- */
.about-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 70px; align-items: center; }
.about-visual { position: relative; }
.about-card {
  background: var(--ink); border-radius: var(--radius-lg); padding: 46px 36px;
  position: relative; overflow: hidden; min-height: 420px;
  display: flex; flex-direction: column; justify-content: flex-end;
}
.about-card::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 30% 20%, rgba(14,165,233,0.35), transparent 60%);
}
.about-card .quote { position: relative; color: var(--white); font-family: var(--font-heading); font-size: 22px; line-height: 1.5; }
.about-card .quote span { color: var(--sky-light); }
.about-badge {
  position: absolute; bottom: -26px; right: -18px; background: var(--white);
  border-radius: var(--radius-md); box-shadow: var(--shadow-lg); padding: 20px 26px;
  display: flex; align-items: center; gap: 14px;
}
.about-badge .num { font-family: var(--font-heading); font-size: 26px; font-weight: 700; color: var(--sky-dark); }
.about-badge .label { font-size: 12.5px; color: var(--grey); max-width: 110px; }

.about-text p { color: var(--grey); margin-bottom: 20px; font-size: 16.5px; }
.about-points { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin: 30px 0 34px; }
.about-point { display: flex; align-items: flex-start; gap: 12px; }
.about-point .icon-dot {
  width: 34px; height: 34px; border-radius: 10px; background: var(--sky-pale); color: var(--sky-dark);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.about-point .icon-dot .icon { width: 17px; height: 17px; }
.about-point strong { display: block; font-size: 14.5px; margin-bottom: 2px; }
.about-point p { font-size: 13.5px; color: var(--grey); margin: 0; }

/* ---------- Services ---------- */
.service-tabs { display: flex; gap: 12px; margin-bottom: 50px; flex-wrap: wrap; }
.service-tab {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 24px; border-radius: 999px; border: 1.5px solid var(--line);
  font-weight: 600; font-size: 14.5px; color: var(--grey); background: var(--white);
  transition: all 0.35s var(--ease);
}
.service-tab .tab-icon { width: 20px; height: 20px; }
.service-tab:hover { border-color: var(--sky-light); color: var(--sky-dark); }
.service-tab.active {
  background: linear-gradient(120deg, var(--sky-dark), var(--sky));
  border-color: transparent; color: var(--white); box-shadow: var(--shadow-sky);
}

.service-panel { display: none; }
.service-panel.active { display: block; animation: fadein 0.5s var(--ease); }
@keyframes fadein { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }

.service-panel-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 30px; margin-bottom: 40px; flex-wrap: wrap; }
.service-panel-head h3 { font-size: 26px; margin-bottom: 10px; }
.service-panel-head p { color: var(--grey); max-width: 520px; }

.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.service-card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-md);
  padding: 30px 24px; transition: all 0.4s var(--ease); position: relative; overflow: hidden;
}
.service-card::before {
  content: ''; position: absolute; inset: 0; opacity: 0;
  background: linear-gradient(160deg, var(--sky-dark), var(--ink));
  transition: opacity 0.4s var(--ease); z-index: 0;
}
.service-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: transparent; }
.service-card:hover::before { opacity: 1; }
.service-card > * { position: relative; z-index: 1; }
.service-card .icon-box {
  width: 48px; height: 48px; border-radius: 12px; background: var(--sky-pale); color: var(--sky-dark);
  display: flex; align-items: center; justify-content: center; margin-bottom: 20px;
  transition: all 0.4s var(--ease);
}
.service-card .icon-box .icon { width: 23px; height: 23px; }
.service-card:hover .icon-box { background: rgba(255,255,255,0.15); color: var(--white); }
.service-card h4 { font-size: 16.5px; margin-bottom: 10px; transition: color 0.4s var(--ease); }
.service-card:hover h4 { color: var(--white); }
.service-card p { font-size: 13.8px; color: var(--grey); transition: color 0.4s var(--ease); margin: 0; }
.service-card:hover p { color: rgba(255,255,255,0.75); }

/* ---------- Process strip ---------- */
.process-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 70px; }
.process-step { position: relative; padding-left: 4px; }
.process-step .step-num {
  font-family: var(--font-heading); font-size: 40px; font-weight: 700; color: var(--sky-pale);
  -webkit-text-stroke: 1.5px var(--sky-light);
  margin-bottom: 14px; display: block;
}
.process-step h4 { font-size: 15.5px; margin-bottom: 8px; }
.process-step p { font-size: 13.5px; color: var(--grey); }

/* ---------- Products ---------- */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.product-card {
  border-radius: var(--radius-lg); overflow: hidden; background: var(--white);
  border: 1px solid var(--line); transition: all 0.4s var(--ease);
}
.product-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.product-media {
  height: 180px; position: relative; overflow: hidden;
  background: linear-gradient(135deg, var(--sky-dark), var(--sky) 60%, var(--sky-light));
  display: flex; align-items: center; justify-content: center;
}
.product-media::after {
  content: ''; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.15) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.15) 1px, transparent 1px);
  background-size: 26px 26px;
}
.product-media .product-icon { width: 56px; height: 56px; color: var(--white); position: relative; z-index: 1; opacity: 0.92; }
.product-tag {
  position: absolute; top: 16px; left: 16px; background: rgba(10,14,20,0.35); backdrop-filter: blur(6px);
  color: var(--white); font-size: 11.5px; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase;
  padding: 6px 12px; border-radius: 999px; z-index: 2;
}
.product-body { padding: 28px 26px 30px; }
.product-body h4 { font-size: 19px; margin-bottom: 10px; }
.product-body p { color: var(--grey); font-size: 14px; margin-bottom: 20px; }
.product-link { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 14px; color: var(--sky-dark); }
.product-link .icon { width: 15px; height: 15px; transition: transform 0.3s var(--ease); }
.product-link:hover svg { transform: translateX(4px); }

/* ---------- Blog ---------- */
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.blog-card {
  border-radius: var(--radius-lg); overflow: hidden; background: var(--white);
  border: 1px solid var(--line); transition: all 0.4s var(--ease); display: flex; flex-direction: column;
}
.blog-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.blog-media {
  height: 170px; background: linear-gradient(150deg, var(--ink), var(--ink-soft));
  position: relative; overflow: hidden; display: flex; align-items: center; justify-content: center;
}
.blog-media svg { width: 42px; height: 42px; color: var(--sky-light); opacity: 0.8; }
.blog-media::after { content: ''; position: absolute; inset: 0; background: radial-gradient(circle at 80% 20%, rgba(14,165,233,0.4), transparent 55%); }
.blog-body { padding: 26px 24px 28px; display: flex; flex-direction: column; flex: 1; }
.blog-meta { display: flex; align-items: center; gap: 10px; font-size: 12px; color: var(--grey-light); margin-bottom: 14px; text-transform: uppercase; letter-spacing: 0.04em; }
.blog-meta .tag-pill { background: var(--sky-pale); color: var(--sky-dark); padding: 4px 11px; border-radius: 999px; font-weight: 600; }
.blog-body h4 { font-size: 17.5px; margin-bottom: 10px; }
.blog-body p { color: var(--grey); font-size: 14px; margin-bottom: 18px; flex: 1; }
.blog-readmore { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 13.5px; color: var(--ink); }
.blog-readmore .icon { width: 15px; height: 15px; transition: transform 0.3s var(--ease); }
.blog-readmore:hover svg { transform: translateX(4px); }
.blog-readmore:hover { color: var(--sky-dark); }

/* ---------- CTA banner ---------- */
.cta-banner {
  background: var(--ink); border-radius: var(--radius-lg); padding: 70px 60px;
  display: flex; align-items: center; justify-content: space-between; gap: 40px;
  position: relative; overflow: hidden; flex-wrap: wrap;
}
.cta-banner::before {
  content: ''; position: absolute; width: 420px; height: 420px; border-radius: 50%;
  background: var(--sky); filter: blur(110px); opacity: 0.4; top: -140px; right: -80px;
}
.cta-banner > * { position: relative; z-index: 1; }
.cta-banner h3 { color: var(--white); font-size: clamp(24px, 3vw, 32px); max-width: 480px; margin-bottom: 10px; }
.cta-banner p { color: rgba(255,255,255,0.65); max-width: 480px; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 60px; }
.contact-info-card {
  background: var(--ink); border-radius: var(--radius-lg); padding: 44px 34px; color: var(--white);
  position: relative; overflow: hidden;
}
.contact-info-card::before { content: ''; position: absolute; inset: 0; background: radial-gradient(circle at 20% 100%, rgba(14,165,233,0.35), transparent 55%); }
.contact-info-card > * { position: relative; z-index: 1; }
.contact-info-card h3 { color: var(--white); font-size: 22px; margin-bottom: 12px; }
.contact-info-card p { color: rgba(255,255,255,0.65); font-size: 14.5px; margin-bottom: 34px; }
.contact-detail { display: flex; align-items: flex-start; gap: 14px; margin-bottom: 24px; }
.contact-detail .icon-box { width: 40px; height: 40px; border-radius: 11px; background: rgba(125,211,252,0.14); color: var(--sky-light); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.contact-detail .icon-box .icon { width: 19px; height: 19px; }
.contact-detail strong { display: block; font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--sky-light); margin-bottom: 3px; }
.contact-detail span, .contact-detail a { font-size: 14.5px; color: rgba(255,255,255,0.85); }
.social-row { display: flex; gap: 10px; margin-top: 34px; }
.social-row a {
  width: 40px; height: 40px; border-radius: 50%; border: 1px solid rgba(255,255,255,0.2);
  display: flex; align-items: center; justify-content: center; transition: all 0.3s var(--ease);
}
.social-row .icon { width: 16px; height: 16px; }
.social-row a:hover { background: var(--sky); border-color: var(--sky); transform: translateY(-3px); }

.contact-form-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 44px; box-shadow: var(--shadow-sm); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; }
.form-group { margin-bottom: 20px; display: flex; flex-direction: column; gap: 8px; }
.form-group label { font-size: 13px; font-weight: 600; color: var(--ink-soft); }
.form-group input, .form-group select, .form-group textarea {
  padding: 14px 16px; border: 1.5px solid var(--line); border-radius: var(--radius-sm);
  font-family: inherit; font-size: 14.5px; color: var(--ink); transition: all 0.3s var(--ease); background: var(--off-white);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--sky); background: var(--white); box-shadow: 0 0 0 4px var(--sky-pale);
}
.form-group textarea { resize: vertical; min-height: 130px; }
.form-alert { padding: 14px 18px; border-radius: var(--radius-sm); font-size: 14px; margin-bottom: 22px; }
.form-alert.success { background: #e6f9ee; color: #146c43; border: 1px solid #b9ecd0; }
.form-alert.error { background: #fdecec; color: #b42318; border: 1px solid #f6c6c2; }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: rgba(255,255,255,0.6); padding: 80px 0 0; }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 50px; padding-bottom: 60px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.footer-brand .brand-name { color: var(--white); }
.footer-brand p { margin: 18px 0 24px; font-size: 14px; max-width: 280px; }
.footer-col h5 { color: var(--white); font-size: 14px; margin-bottom: 20px; letter-spacing: 0.03em; text-transform: uppercase; }
.footer-col ul li { margin-bottom: 12px; }
.footer-col a { font-size: 14px; transition: color 0.3s var(--ease); }
.footer-col a:hover { color: var(--sky-light); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding: 26px 0; font-size: 13px; flex-wrap: wrap; gap: 10px; }
.footer-bottom a { color: rgba(255,255,255,0.55); }
.footer-bottom a:hover { color: var(--sky-light); }

/* ---------- Back to top ---------- */
.back-to-top {
  position: fixed; bottom: 28px; right: 28px; width: 48px; height: 48px; border-radius: 50%;
  background: var(--ink); color: var(--white); display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-lg); opacity: 0; visibility: hidden; transform: translateY(14px);
  transition: all 0.35s var(--ease); z-index: 900;
}
.back-to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--sky-dark); }

/* ---------- Modal (blog / product detail) ---------- */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(10,14,20,0.6); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center; padding: 24px;
  z-index: 1200; opacity: 0; visibility: hidden; transition: all 0.35s var(--ease);
}
.modal-overlay.open { opacity: 1; visibility: visible; }
.modal-box {
  background: var(--white); border-radius: var(--radius-lg); max-width: 640px; width: 100%;
  max-height: 82vh; overflow-y: auto; padding: 44px; position: relative;
  transform: translateY(24px) scale(0.98); transition: transform 0.35s var(--ease);
}
.modal-overlay.open .modal-box { transform: translateY(0) scale(1); }
.modal-close {
  position: absolute; top: 20px; right: 20px; width: 36px; height: 36px; border-radius: 50%;
  background: var(--off-white); display: flex; align-items: center; justify-content: center;
  transition: all 0.3s var(--ease);
}
.modal-close:hover { background: var(--sky-pale); color: var(--sky-dark); }
.modal-box .tag-pill { background: var(--sky-pale); color: var(--sky-dark); padding: 5px 13px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.modal-box h3 { font-size: 24px; margin: 16px 0 14px; }
.modal-box .modal-meta { font-size: 13px; color: var(--grey-light); margin-bottom: 20px; }
.modal-box .modal-content-body p { color: var(--grey); margin-bottom: 14px; font-size: 15px; }

.icon-rotate-neg90 { transform: rotate(-90deg); }
.icon-rotate-45 { transform: rotate(45deg); }
.icon-sm { width: 16px; height: 16px; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .product-grid, .blog-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
  .about-visual { max-width: 480px; margin: 0 auto; }
  .contact-grid { grid-template-columns: 1fr; }
  .process-strip { grid-template-columns: repeat(2, 1fr); row-gap: 40px; }
  .footer-top { grid-template-columns: 1fr 1fr; row-gap: 40px; }
}

@media (max-width: 860px) {
  .nav-links, .header-actions .btn { display: none; }
  .nav-toggle { display: flex; }
  .nav-links.mobile-open {
    display: flex; flex-direction: column; align-items: flex-start; gap: 4px;
    position: fixed; top: 0; right: 0; height: 100vh; width: 78%; max-width: 340px;
    background: var(--white); padding: 100px 32px 40px; box-shadow: var(--shadow-lg);
    z-index: 1050; overflow-y: auto;
  }
  .nav-links.mobile-open a { padding: 14px 0; width: 100%; border-bottom: 1px solid var(--line); color: var(--ink) !important; }
  .nav-links.mobile-open .dropdown-menu { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: none; padding: 0 0 0 14px; display: none; }
  .nav-links.mobile-open .dropdown.open .dropdown-menu { display: block; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); row-gap: 30px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
}

@media (max-width: 640px) {
  .section { padding: 80px 0; }
  .service-grid, .product-grid, .blog-grid { grid-template-columns: 1fr; }
  .process-strip { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .cta-banner { padding: 44px 28px; }
  .contact-form-card { padding: 28px; }
  .about-badge { position: static; margin-top: -30px; margin-left: 20px; width: fit-content; }
}