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

:root {
  --bg:        #0d1117;
  --bg2:       #161b22;
  --bg3:       #1a2030;
  --border:    #21262d;
  --border2:   #30363d;
  --text1:     #e6edf3;
  --text2:     #8b949e;
  --text3:     #6e7681;
  --accent:    #00b4d8;
  --accent2:   #0096b7;
  --accent3:   #90e0ef;
  --green:     #3fb950;
  --red:       #f85149;
  --font-mono: 'Space Mono', 'Courier New', monospace;
  --font-sans: 'IBM Plex Sans', system-ui, sans-serif;
  --radius:    4px;
  --t:         200ms ease;
}

html { scroll-behavior: smooth; }
body { background: var(--bg); color: var(--text1); font-family: var(--font-sans); font-size: 16px; line-height: 1.6; }
a { color: var(--accent); text-decoration: none; transition: color var(--t); }
a:hover { color: var(--accent3); }
strong { color: var(--text1); font-weight: 600; }

/* ===== HEADER ===== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(13,17,23,.92);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
  transition: border-color var(--t);
}
.header-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 2rem;
  display: flex; align-items: center; height: 60px; gap: 2rem;
}
.logo {
  font-family: var(--font-mono); font-size: 1rem;
  color: var(--text1); text-decoration: none; flex-shrink: 0;
  white-space: nowrap;
}
.logo-b  { color: var(--text3); }
.logo-aic { color: var(--accent); font-weight: 700; }
.logo-ing { color: var(--text2); font-size: .8rem; }

.main-nav { display: flex; gap: 1.8rem; margin-left: auto; }
.main-nav a {
  color: var(--text2); font-size: .875rem; font-weight: 500;
  transition: color var(--t); position: relative; padding-bottom: 2px;
}
.main-nav a::after {
  content: ''; position: absolute; bottom: -2px; left: 0; right: 0;
  height: 1px; background: var(--accent); transform: scaleX(0);
  transition: transform var(--t); transform-origin: left;
}
.main-nav a:hover { color: var(--accent); }
.main-nav a:hover::after { transform: scaleX(1); }

.nav-dropdown { position: relative; }
.nav-dropdown-menu {
  position: absolute; top: 100%; left: 50%; transform: translateX(-50%) translateY(4px);
  background: var(--bg2); border: 1px solid var(--border2); border-radius: var(--radius);
  padding: .4rem 0; min-width: 100px; text-align: center;
  opacity: 0; visibility: hidden; transition: opacity var(--t), transform var(--t);
  pointer-events: none;
}
.nav-dropdown-menu a {
  display: block; padding: .45rem 1rem; font-size: .82rem; color: var(--text2);
}
.nav-dropdown-menu a::after { content: none; }
.nav-dropdown-menu a:hover { color: var(--accent); background: rgba(0,180,216,.08); }
.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu {
  opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); pointer-events: auto;
}

.burger { display: none; background: none; border: none; cursor: pointer; padding: .5rem; flex-direction: column; gap: 5px; }
.burger span { display: block; width: 22px; height: 2px; background: var(--text2); transition: all .25s; }

/* ===== BUTTONS ===== */
.btn {
  font-family: var(--font-mono); font-size: .83rem;
  padding: .65rem 1.5rem; border-radius: var(--radius);
  cursor: pointer; display: inline-block; transition: all var(--t);
  border: 1px solid transparent; font-weight: 400;
}
.btn-primary { background: var(--accent); color: #000; font-weight: 700; }
.btn-primary:hover { background: var(--accent3); color: #000; }
.btn-ghost { background: transparent; color: var(--text2); border-color: var(--border2); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* ===== HERO ===== */
.hero {
  min-height: 100vh; display: flex; flex-direction: column;
  justify-content: center; position: relative; overflow: hidden;
  padding: 7rem 2rem 5rem;
}
.hero-bg {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(ellipse at 65% 35%, rgba(0,180,216,.09) 0%, transparent 55%),
    radial-gradient(ellipse at 15% 80%, rgba(0,150,183,.06) 0%, transparent 45%);
}
.hero-bg::after {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0,180,216,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,180,216,.025) 1px, transparent 1px);
  background-size: 48px 48px;
}
.hero-content { position: relative; max-width: 820px; margin: 0 auto; text-align: center; }
.hero-badge {
  font-family: var(--font-mono); font-size: .78rem; color: var(--accent);
  background: rgba(0,180,216,.07); border: 1px solid rgba(0,180,216,.18);
  display: inline-block; padding: .35rem .9rem; border-radius: 20px; margin-bottom: 1.8rem;
  letter-spacing: .04em;
}
.hero-title {
  font-size: clamp(2.4rem, 5.5vw, 4.2rem); font-weight: 300;
  line-height: 1.12; letter-spacing: -.02em; margin-bottom: 1.2rem;
}
.hero-title .accent { color: var(--accent); font-weight: 600; display: block; }
.hero-sub {
  font-family: var(--font-mono); font-size: clamp(.78rem, 1.4vw, .95rem);
  color: var(--text2); margin-bottom: 2.5rem; letter-spacing: .06em;
}
.hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; margin-bottom: 3.5rem; }
.hero-stats { display: flex; align-items: center; gap: 2rem; justify-content: center; flex-wrap: wrap; }
.stat { text-align: center; }
.stat-n { font-family: var(--font-mono); font-size: 1.5rem; color: var(--accent); display: block; font-weight: 700; line-height: 1.2; }
.stat-l { font-size: .72rem; color: var(--text3); text-transform: uppercase; letter-spacing: .1em; margin-top: .2rem; }
.stat-sep { color: var(--border2); font-size: 1.8rem; font-weight: 100; }
.hero-scroll {
  position: absolute; bottom: 2.5rem; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: .5rem;
  font-size: .68rem; color: var(--text3); font-family: var(--font-mono);
  animation: bounce 2.5s ease-in-out infinite;
}
@keyframes bounce {
  0%,100% { transform: translateX(-50%) translateY(0); }
  50%      { transform: translateX(-50%) translateY(5px); }
}

/* ===== SECTIONS ===== */
.section { padding: 5.5rem 2rem; }
.section-dark { background: var(--bg2); }
.container { max-width: 1200px; margin: 0 auto; }
.section-label {
  font-family: var(--font-mono); font-size: .73rem; color: var(--accent);
  margin-bottom: .6rem; letter-spacing: .12em;
}
.section-title {
  font-size: clamp(1.7rem, 3vw, 2.6rem); font-weight: 300;
  margin-bottom: 2.5rem; letter-spacing: -.01em;
}
.section-intro { max-width: 720px; color: var(--text2); line-height: 1.85; margin-bottom: 3rem; }

/* ===== ABOUT ===== */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4.5rem; align-items: start; }
.about-text p { color: var(--text2); margin-bottom: 1.1rem; line-height: 1.85; }
.about-legal {
  display: flex; flex-direction: column; gap: .6rem;
  margin-top: 1.8rem; padding-top: 1.5rem; border-top: 1px solid var(--border);
}
.legal-item { display: flex; gap: 1rem; align-items: baseline; }
.legal-k { font-family: var(--font-mono); font-size: .72rem; color: var(--text3); width: 55px; flex-shrink: 0; }
.legal-v { font-size: .87rem; color: var(--text2); }
.expertise-list { display: flex; flex-direction: column; gap: 1.2rem; }
.exp-block {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.3rem;
}
.exp-label {
  font-family: var(--font-mono); font-size: .68rem; color: var(--accent);
  text-transform: uppercase; letter-spacing: .12em; margin-bottom: .9rem;
}
.exp-item { display: flex; align-items: baseline; gap: .8rem; margin-bottom: .45rem; font-size: .88rem; color: var(--text2); }
.level {
  font-family: var(--font-mono); font-size: .68rem;
  background: rgba(0,180,216,.08); color: var(--accent);
  border: 1px solid rgba(0,180,216,.18); padding: .1rem .4rem;
  border-radius: 3px; flex-shrink: 0;
}

/* ===== SERVICES ===== */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.service-card {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.8rem;
  transition: border-color var(--t), transform var(--t);
}
.service-card:hover { border-color: rgba(0,180,216,.5); transform: translateY(-3px); }
.service-icon { width: 38px; height: 38px; color: var(--accent); margin-bottom: 1.1rem; }
.service-icon svg { width: 100%; height: 100%; }
.service-card h3 { font-size: .98rem; font-weight: 600; margin-bottom: .75rem; }
.service-card p { font-size: .86rem; color: var(--text2); line-height: 1.75; margin-bottom: 1.1rem; }
.service-tags { display: flex; flex-wrap: wrap; gap: .4rem; }
.service-tags span {
  font-family: var(--font-mono); font-size: .66rem;
  background: rgba(0,180,216,.07); color: var(--accent);
  border: 1px solid rgba(0,180,216,.14); padding: .2rem .5rem; border-radius: 3px;
}

/* ===== DATACENTER ===== */
.dc-grid { display: grid; grid-template-columns: 1fr 1.6fr; gap: 3.5rem; margin-bottom: 2.5rem; }
.dc-spec-title {
  font-family: var(--font-mono); font-size: .72rem; color: var(--accent);
  text-transform: uppercase; letter-spacing: .12em; margin-bottom: 1.2rem;
}
.dc-spec-list { list-style: none; display: flex; flex-direction: column; gap: .85rem; }
.dc-spec-list li { display: flex; align-items: flex-start; gap: .8rem; font-size: .88rem; color: var(--text2); line-height: 1.55; }
.dc-ico { font-size: .95rem; flex-shrink: 0; margin-top: .05rem; }

.dc-offers { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.dc-offer {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.5rem; position: relative;
}
.dc-offer.featured { border-color: var(--accent); background: rgba(0,180,216,.03); }
.dc-energy { grid-column: 1 / -1; }
.offer-badge {
  position: absolute; top: -1px; right: 1.2rem;
  background: var(--accent); color: #000;
  font-family: var(--font-mono); font-size: .62rem; font-weight: 700;
  padding: .25rem .55rem; border-radius: 0 0 4px 4px;
}
.offer-ref { font-family: var(--font-mono); font-size: .68rem; color: var(--text3); margin-bottom: .25rem; }
.offer-name { font-size: .9rem; color: var(--text2); margin-bottom: .6rem; }
.offer-size { color: var(--text1); font-weight: 600; }
.offer-price { font-family: var(--font-mono); font-size: 1.7rem; color: var(--accent); font-weight: 700; margin-bottom: 1rem; line-height: 1.1; }
.offer-price span { font-size: .78rem; color: var(--text3); font-weight: 400; }
.offer-includes { list-style: none; display: flex; flex-direction: column; gap: .45rem; }
.offer-includes li { font-size: .82rem; color: var(--text2); padding-left: 1.2rem; position: relative; }
.offer-includes li::before { content: '→'; position: absolute; left: 0; color: var(--accent); font-family: var(--font-mono); }
.offer-price-list { display: flex; gap: 2rem; margin-bottom: .6rem; }
.offer-price-list div { font-family: var(--font-mono); font-size: 1rem; color: var(--text1); }
.offer-note { font-size: .8rem; color: var(--text3); }

.dc-access {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
  border-top: 1px solid var(--border); padding-top: 2rem; margin-top: 1rem;
}
.access-item { display: flex; flex-direction: column; gap: .5rem; }
.access-item strong { font-family: var(--font-mono); font-size: .75rem; color: var(--accent); }
.access-item span { font-size: .85rem; color: var(--text2); line-height: 1.6; }

/* ===== PROJECTS ===== */
.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.project-card {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.5rem;
  transition: border-color var(--t);
}
.project-card:hover { border-color: rgba(0,180,216,.35); }
.project-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.project-tag { font-family: var(--font-mono); font-size: .63rem; color: var(--accent); text-transform: uppercase; letter-spacing: .08em; }
.project-year { font-family: var(--font-mono); font-size: .63rem; color: var(--text3); }
.project-card h3 { font-size: .98rem; font-weight: 600; margin-bottom: .75rem; }
.project-card p { font-size: .84rem; color: var(--text2); line-height: 1.75; margin-bottom: 1rem; }
.project-link { font-family: var(--font-mono); font-size: .78rem; color: var(--accent); display: inline-block; margin-bottom: .8rem; }
.project-tech { display: flex; flex-wrap: wrap; gap: .35rem; }
.project-tech span {
  font-family: var(--font-mono); font-size: .63rem;
  background: rgba(255,255,255,.04); color: var(--text3);
  border: 1px solid var(--border2); padding: .15rem .4rem; border-radius: 3px;
}

/* ===== CONTACT ===== */
.contact-grid { display: grid; grid-template-columns: 320px 1fr; gap: 4rem; }
.contact-block { margin-bottom: 1.8rem; }
.contact-label {
  font-family: var(--font-mono); font-size: .7rem; color: var(--accent);
  text-transform: uppercase; letter-spacing: .12em; margin-bottom: .45rem;
}
.contact-value { font-size: .9rem; color: var(--text2); line-height: 1.8; }
.contact-value.mono { font-family: var(--font-mono); font-size: .8rem; line-height: 1.9; }
.text-dim { color: var(--text3); }

.contact-form { display: flex; flex-direction: column; gap: 1.1rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: .4rem; }
.form-group label { font-size: .8rem; color: var(--text2); font-weight: 500; }
.form-group input, .form-group select, .form-group textarea {
  background: var(--bg2); border: 1px solid var(--border2);
  color: var(--text1); border-radius: var(--radius); padding: .7rem .95rem;
  font-family: var(--font-sans); font-size: .9rem;
  transition: border-color var(--t); outline: none; width: 100%;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--accent); }
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--text3); }
.form-group select { appearance: none; cursor: pointer; }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-status { font-family: var(--font-mono); font-size: .8rem; padding: .3rem 0; min-height: 1.5rem; }
.form-status.success { color: var(--green); }
.form-status.error   { color: var(--red); }

/* ===== FOOTER ===== */
.site-footer { background: var(--bg2); border-top: 1px solid var(--border); padding: 2.5rem 2rem; }
.footer-inner { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; gap: 2rem; flex-wrap: wrap; }
.footer-logo { font-family: var(--font-mono); font-size: .9rem; }
.footer-links { display: flex; gap: 1.8rem; margin-left: auto; }
.footer-links a { font-size: .82rem; color: var(--text3); transition: color var(--t); }
.footer-links a:hover { color: var(--accent); }
.footer-legal { width: 100%; font-size: .74rem; color: var(--text3); border-top: 1px solid var(--border); padding-top: 1.2rem; line-height: 1.7; }

/* ===== SCROLL REVEAL ===== */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .55s ease, transform .55s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ===== RESPONSIVE ===== */
@media (max-width: 960px) {
  .about-grid       { grid-template-columns: 1fr; gap: 2.5rem; }
  .services-grid    { grid-template-columns: 1fr 1fr; }
  .dc-grid          { grid-template-columns: 1fr; }
  .dc-access        { grid-template-columns: 1fr 1fr; }
  .projects-grid    { grid-template-columns: 1fr 1fr; }
  .contact-grid     { grid-template-columns: 1fr; gap: 2.5rem; }
}

@media (max-width: 620px) {
  .main-nav {
    display: none; flex-direction: column; position: absolute;
    top: 60px; left: 0; right: 0; background: var(--bg2);
    border-bottom: 1px solid var(--border2); padding: 1rem 2rem; gap: 1rem;
  }
  .main-nav.open { display: flex; }
  .burger { display: flex; margin-left: auto; }
  .nav-dropdown { display: flex; flex-direction: column; }
  .nav-dropdown-menu {
    position: static; opacity: 1; visibility: visible; pointer-events: auto;
    transform: none; background: none; border: none; padding: 0 0 0 1rem; text-align: left;
  }
  .services-grid  { grid-template-columns: 1fr; }
  .projects-grid  { grid-template-columns: 1fr; }
  .dc-offers      { grid-template-columns: 1fr; }
  .dc-energy      { grid-column: 1; }
  .dc-access      { grid-template-columns: 1fr; }
  .form-row       { grid-template-columns: 1fr; }
  .footer-links   { display: none; }
  .hero-stats     { gap: 1rem; }
  .stat-sep       { display: none; }
}