/* ═══════════════════════════════════════════════════
   AdvanceHUB — Premium CSS Design System
   Paleta: #0B0F19 / #00D4FF / #4F7DFF / #7C3AED
═══════════════════════════════════════════════════ */

:root {
  --bg: #0B0F19;
  --surface: #121826;
  --surface2: #1a2233;
  --cyan: #00D4FF;
  --blue: #4F7DFF;
  --violet: #7C3AED;
  --text: #FFFFFF;
  --muted: #B8C2D1;
  --border: rgba(255,255,255,0.07);
  --r: 16px;
  --r-lg: 24px;
  color-scheme: dark;
}

/* ── Reset ── */
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0 }
html { color-scheme: dark; scroll-behavior: smooth; font-size: 16px }
body { font-family: 'Inter', sans-serif; background: var(--bg); color: var(--text); line-height: 1.65; overflow-x: hidden; -webkit-font-smoothing: antialiased }
a { text-decoration: none; color: inherit }
ul { list-style: none }
img, svg, video { max-width: 100% }
input, textarea, select, button { font-family: inherit; color-scheme: dark }
::selection { background: rgba(0,212,255,.25); color: #fff }
::-webkit-scrollbar { width: 5px }
::-webkit-scrollbar-track { background: var(--bg) }
::-webkit-scrollbar-thumb { background: rgba(79,125,255,.4); border-radius: 3px }

/* ── Cursor glow ── */
#cursor-glow { position: fixed; width: 400px; height: 400px; border-radius: 50%; background: radial-gradient(circle, rgba(0,212,255,.06) 0%, transparent 70%); pointer-events: none; z-index: 0; transform: translate(-50%,-50%); transition: opacity .3s }

/* ── Neural Canvas ── */
#neural-canvas { position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: .5 }

/* ── Layout ── */
.section-inner { max-width: 1200px; margin: 0 auto; padding: 0 28px }
.section { padding: 100px 0; position: relative; z-index: 2 }

/* ── Gradient texts ── */
.text-glow-cyan { background: linear-gradient(135deg, var(--cyan), var(--blue)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text }
.text-glow-blue { background: linear-gradient(135deg, var(--blue), var(--violet)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text }
.text-glow-violet { background: linear-gradient(135deg, var(--violet), var(--cyan)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text }

/* ── Section headers ── */
.section-tag { display: inline-flex; align-items: center; gap: 8px; font-size: .75rem; font-weight: 700; letter-spacing: 3px; text-transform: uppercase; color: var(--cyan); margin-bottom: 16px }
.section-tag::before { content: ''; width: 20px; height: 1px; background: var(--cyan); display: inline-block }
.section-title { font-size: clamp(2.4rem, 5vw, 4rem); font-weight: 900; line-height: 1.08; letter-spacing: -.04em; margin-bottom: 20px }
.section-sub { color: var(--muted); font-size: 1.05rem; max-width: 600px; line-height: 1.75; margin-bottom: 60px }

/* ── Buttons ── */
.btn-primary-lg {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 16px 36px; border-radius: 12px; font-weight: 700; font-size: 1rem;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: #fff; border: none; cursor: pointer; transition: all .3s ease;
  box-shadow: 0 0 30px rgba(0,212,255,.25), 0 0 0 1px rgba(0,212,255,.3);
  position: relative; overflow: hidden;
}
.btn-primary-lg::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(255,255,255,.15), transparent); opacity: 0; transition: opacity .3s }
.btn-primary-lg:hover { transform: translateY(-2px); box-shadow: 0 0 50px rgba(0,212,255,.4), 0 0 0 1px rgba(0,212,255,.4) }
.btn-primary-lg:hover::before { opacity: 1 }
.btn-arrow { width: 18px; height: 18px; transition: transform .3s }
.btn-primary-lg:hover .btn-arrow { transform: translateX(4px) }

.btn-outline-lg { display: inline-flex; align-items: center; gap: 10px; padding: 16px 36px; border-radius: 12px; font-weight: 600; font-size: 1rem; background: rgba(255,255,255,.04); color: var(--muted); border: 1px solid var(--border); cursor: pointer; transition: all .3s ease; backdrop-filter: blur(10px) }
.btn-outline-lg:hover { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.15); color: #fff }

.btn-cyan-sm { display: inline-flex; align-items: center; padding: 9px 20px; border-radius: 10px; font-weight: 600; font-size: .85rem; background: linear-gradient(135deg, var(--cyan), var(--blue)); color: #fff; border: none; cursor: pointer; transition: all .3s; box-shadow: 0 0 20px rgba(0,212,255,.2) }
.btn-cyan-sm:hover { transform: translateY(-1px); box-shadow: 0 0 30px rgba(0,212,255,.35) }

.btn-ghost-sm { display: inline-flex; align-items: center; padding: 9px 20px; border-radius: 10px; font-weight: 500; font-size: .85rem; background: transparent; color: var(--muted); border: 1px solid var(--border); cursor: pointer; transition: all .3s }
.btn-ghost-sm:hover { color: #fff; border-color: rgba(255,255,255,.2); background: rgba(255,255,255,.05) }

/* ── Navbar ── */
#navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; height: 68px; transition: all .4s ease; border-bottom: 1px solid transparent }
#navbar.scrolled { background: rgba(11,15,25,.9); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom-color: var(--border) }
.nav-inner { max-width: 1200px; margin: 0 auto; padding: 0 28px; 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: 800; color: #fff; letter-spacing: -.03em }
.logo-icon { width: 28px; height: 28px; flex-shrink: 0 }
.logo-accent { background: linear-gradient(135deg, var(--cyan), var(--violet)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text }
.nav-links { display: flex; gap: 32px }
.nav-links a { font-size: .875rem; font-weight: 500; color: var(--muted); transition: color .2s }
.nav-links a:hover { color: #fff }
.nav-actions { display: flex; align-items: center; gap: 12px }
.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px }
.hamburger span { display: block; width: 22px; height: 2px; background: #fff; border-radius: 2px; transition: .3s }

/* ── Mobile menu ── */
.mob-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.7); z-index: 1499; opacity: 0; pointer-events: none; transition: opacity .3s; backdrop-filter: blur(4px) }
.mob-overlay.show { opacity: 1; pointer-events: all }
.mob-menu { position: fixed; top: 0; right: -100%; width: min(360px,100%); height: 100vh; background: #0d111e; border-left: 1px solid var(--border); z-index: 1500; padding: 80px 36px 40px; transition: right .5s cubic-bezier(.16,1,.3,1) }
.mob-menu.show { right: 0 }
.mob-close { position: absolute; top: 20px; right: 20px; background: rgba(255,255,255,.08); border: none; color: #fff; width: 36px; height: 36px; border-radius: 50%; cursor: pointer; font-size: 1rem }
.mob-menu nav { display: flex; flex-direction: column; gap: 28px }
.mob-menu nav a { font-size: 1.1rem; font-weight: 600; color: var(--muted); transition: color .2s }
.mob-menu nav a:hover { color: #fff }

/* ── Hero ── */
.hero { min-height: 100vh; display: flex; flex-direction: column; justify-content: center; position: relative; z-index: 2; overflow: hidden; padding-top: 68px }
.hero-inner { max-width: 1200px; margin: 0 auto; padding: 60px 28px; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center }
.hero-badge { display: inline-flex; align-items: center; gap: 10px; padding: 8px 18px; border-radius: 50px; background: rgba(0,212,255,.07); border: 1px solid rgba(0,212,255,.2); font-size: .78rem; font-weight: 600; color: var(--cyan); margin-bottom: 28px }
.badge-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 8px var(--cyan); animation: blink 2s infinite }
@keyframes blink { 0%,100%{opacity:.4} 50%{opacity:1} }
.hero-title { font-size: clamp(2.8rem, 5.5vw, 5rem); font-weight: 900; line-height: 1.05; letter-spacing: -.05em; margin-bottom: 24px }
.hero-sub { font-size: 1.1rem; color: var(--muted); line-height: 1.75; margin-bottom: 40px; max-width: 90% }
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 48px }
.hero-metrics { display: flex; align-items: center; gap: 24px }
.hm-item { text-align: center }
.hm-item p { font-size: .75rem; color: var(--muted); margin-top: 2px; font-weight: 500 }
.hm-num, .hm-plus { font-size: 2rem; font-weight: 900; background: linear-gradient(135deg, var(--cyan), var(--blue)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text }
.hm-sep { width: 1px; height: 40px; background: var(--border) }

/* ── Hero Visual / AI Sphere ── */
.hero-visual { position: relative; display: flex; align-items: center; justify-content: center }
.ai-sphere-wrap { position: relative; width: 480px; height: 480px; display: flex; align-items: center; justify-content: center }
#ai-canvas { position: absolute; inset: 0; border-radius: 50%; z-index: 1 }
.sphere-ring { position: absolute; border-radius: 50%; border: 1px solid; pointer-events: none }
.ring-1 { inset: 40px; border-color: rgba(0,212,255,.15); animation: spinRing 20s linear infinite }
.ring-2 { inset: 80px; border-color: rgba(79,125,255,.12); animation: spinRing 15s linear infinite reverse }
.ring-3 { inset: 120px; border-color: rgba(124,58,237,.1); animation: spinRing 30s linear infinite }
@keyframes spinRing { to { transform: rotate(360deg) } }
.sphere-lines { position: absolute; inset: 0; z-index: 2; pointer-events: none }
.sphere-nodes { position: absolute; inset: 0; z-index: 3 }
.s-node { position: absolute; display: flex; flex-direction: column; align-items: center; gap: 4px; transform: translate(-50%,-50%) }
.s-node svg { width: 16px; height: 16px; color: var(--cyan); filter: drop-shadow(0 0 4px var(--cyan)) }
.s-node span { font-size: .65rem; font-weight: 700; color: var(--muted); white-space: nowrap }
/* Node positions (polar → cartesian at r=160 around center 240,240) */
.n1 { left:50%; top:12%; }
.n2 { left:88%; top:30%; }
.n3 { left:88%; top:70%; }
.n4 { left:50%; top:88%; }
.n5 { left:12%; top:70%; }
.n6 { left:12%; top:30%; }
.hero-scroll-cue { position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: 8px; font-size: .72rem; color: var(--muted); font-weight: 500; letter-spacing: 2px; text-transform: uppercase; z-index: 2 }
.hero-scroll-cue span { width: 1px; height: 40px; background: linear-gradient(to bottom, transparent, var(--cyan)); display: block; animation: scrollLine 2s ease-in-out infinite }
@keyframes scrollLine { 0%,100%{opacity:0;transform:scaleY(.5)} 50%{opacity:1;transform:scaleY(1)} }

/* ── Services ── */
.services-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px }
.srv-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-lg);
  padding: 28px 24px; transition: all .35s ease; position: relative; overflow: hidden; cursor: default;
}
.srv-card::before { content: ''; position: absolute; inset: 0; border-radius: inherit; background: radial-gradient(circle at var(--mx,50%) var(--my,50%), rgba(var(--ic-rgb,0,212,255),.06), transparent 60%); opacity: 0; transition: opacity .3s; pointer-events: none }
.srv-card:hover { transform: translateY(-6px); border-color: rgba(0,212,255,.2); box-shadow: 0 20px 60px rgba(0,0,0,.4), 0 0 30px rgba(0,212,255,.05) }
.srv-card:hover::before { opacity: 1 }
.srv-icon { width: 52px; height: 52px; border-radius: 14px; background: rgba(0,212,255,.08); border: 1px solid rgba(0,212,255,.15); display: flex; align-items: center; justify-content: center; margin-bottom: 20px; color: var(--ic); transition: all .3s }
.srv-icon svg { width: 22px; height: 22px }
.srv-card:hover .srv-icon { background: rgba(0,212,255,.12); box-shadow: 0 0 20px rgba(0,212,255,.15) }
.srv-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 10px }
.srv-card p { font-size: .85rem; color: var(--muted); line-height: 1.6 }
.srv-tag { display: inline-block; margin-top: 16px; padding: 3px 10px; border-radius: 50px; font-size: .7rem; font-weight: 700; color: var(--cyan); background: rgba(0,212,255,.08); border: 1px solid rgba(0,212,255,.15); letter-spacing: 1px }

/* ── Platform ── */
.platform-section { background: linear-gradient(180deg, transparent, var(--surface) 30%, var(--surface) 70%, transparent) }
.platform-visual { display: flex; justify-content: center }
.plat-card { background: var(--surface2); border: 1px solid var(--border); border-radius: var(--r-lg); padding: 48px; width: 100%; max-width: 700px; box-shadow: 0 40px 100px rgba(0,0,0,.5), 0 0 0 1px rgba(255,255,255,.04) }
.plat-hub { position: relative; width: 360px; height: 360px; margin: 0 auto 40px; display: flex; align-items: center; justify-content: center }
.hub-core { width: 80px; height: 80px; border-radius: 50%; background: linear-gradient(135deg, var(--cyan), var(--violet)); display: flex; align-items: center; justify-content: center; font-weight: 900; font-size: 1.1rem; box-shadow: 0 0 40px rgba(0,212,255,.4); position: relative; z-index: 5 }
.hub-ring { position: absolute; border-radius: 50%; border: 1px solid }
.hub-ring-1 { inset: 20px; border-color: rgba(0,212,255,.15); animation: spinRing 20s linear infinite }
.hub-ring-2 { inset: 0; border-color: rgba(79,125,255,.1); animation: spinRing 35s linear infinite reverse }
#hub-svg { position: absolute; inset: 0; z-index: 2 }
.hub-nodes { position: absolute; inset: 0; z-index: 4 }
.hub-node { position: absolute; transform: translate(-50%,-50%); display: flex; flex-direction: column; align-items: center; gap: 5px }
.hn-icon { width: 44px; height: 44px; border-radius: 12px; background: var(--surface); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; color: var(--nc); box-shadow: 0 0 15px rgba(0,212,255,.1); transition: all .3s }
.hn-icon:hover { box-shadow: 0 0 25px rgba(0,212,255,.25); transform: scale(1.1) }
.hn-icon svg { width: 18px; height: 18px }
.hub-node span { font-size: .65rem; font-weight: 700; color: var(--muted); white-space: nowrap }
.hn-1 { left:50%; top:6% }
.hn-2 { left:88%; top:28% }
.hn-3 { left:88%; top:72% }
.hn-4 { left:50%; top:94% }
.hn-5 { left:12%; top:72% }
.hn-6 { left:12%; top:28% }
.plat-metrics { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; padding-top: 28px; border-top: 1px solid var(--border) }
.pm-item { text-align: center }
.pm-val { font-size: 1.6rem; font-weight: 900; font-variant-numeric: tabular-nums }
.pm-label { font-size: .75rem; color: var(--muted); margin-top: 4px; font-weight: 500 }

/* ── Metrics ── */
.metrics-section { padding: 80px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); position: relative; z-index: 2 }
.metrics-grid { max-width: 1200px; margin: 0 auto; padding: 0 28px; display: grid; grid-template-columns: repeat(4,1fr); gap: 1px; background: var(--border) }
.metric-card { background: var(--bg); padding: 48px 32px; text-align: center; transition: background .3s }
.metric-card:hover { background: var(--surface) }
.metric-num { font-size: 3.5rem; font-weight: 900; background: linear-gradient(135deg, var(--cyan), var(--blue)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; line-height: 1; margin-bottom: 12px }
.metric-num span { font-size: 2.5rem }
.metric-label { font-size: 1rem; font-weight: 700; margin-bottom: 8px }
.metric-desc { font-size: .82rem; color: var(--muted); line-height: 1.6 }

/* ── Timeline ── */
.timeline { position: relative; max-width: 700px; margin: 0 auto; display: flex; flex-direction: column; gap: 0 }
.timeline-line { position: absolute; left: 22px; top: 0; bottom: 0; width: 1px; background: linear-gradient(to bottom, transparent, var(--cyan) 20%, var(--violet) 80%, transparent) }
.tl-step { display: grid; grid-template-columns: 48px 1fr; gap: 28px; padding: 32px 0; align-items: start }
.tl-marker { width: 46px; height: 46px; border-radius: 50%; background: var(--surface2); border: 1px solid rgba(0,212,255,.3); display: flex; align-items: center; justify-content: center; position: relative; z-index: 2; flex-shrink: 0 }
.tl-marker span { font-size: .7rem; font-weight: 900; background: linear-gradient(135deg, var(--cyan), var(--blue)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text }
.tl-content { padding-top: 4px }
.tl-icon { width: 40px; height: 40px; border-radius: 10px; background: rgba(0,212,255,.07); border: 1px solid rgba(0,212,255,.15); display: flex; align-items: center; justify-content: center; color: var(--cyan); margin-bottom: 14px }
.tl-icon svg { width: 18px; height: 18px }
.tl-content h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px }
.tl-content p { font-size: .9rem; color: var(--muted); line-height: 1.7 }

/* ── Portfolio ── */
.portfolio-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px }
.port-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-lg); overflow: hidden; transition: all .4s ease }
.port-card:hover { transform: translateY(-8px); box-shadow: 0 30px 80px rgba(0,0,0,.5), 0 0 40px rgba(0,212,255,.07); border-color: rgba(0,212,255,.2) }
.port-screen { background: var(--bg); padding: 20px 20px 0; border-bottom: 1px solid var(--border); aspect-ratio: 16/9; display: flex; align-items: flex-end }
.port-screen-inner { width: 100%; height: 100%; border-radius: 8px 8px 0 0; overflow: hidden; background: var(--surface2); border: 1px solid var(--border); border-bottom: none }
.port-info { padding: 24px }
.port-tag { display: inline-block; padding: 4px 12px; border-radius: 50px; font-size: .72rem; font-weight: 700; background: rgba(0,212,255,.08); border: 1px solid rgba(0,212,255,.2); color: var(--cyan); margin-bottom: 12px; letter-spacing: 1px }
.port-info h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; line-height: 1.4 }
.port-info > p { font-size: .85rem; color: var(--muted); line-height: 1.6; margin-bottom: 14px }
.port-tags { display: flex; flex-wrap: wrap; gap: 6px }
.port-tags span { font-size: .72rem; padding: 3px 10px; border-radius: 6px; background: rgba(255,255,255,.05); border: 1px solid var(--border); color: var(--muted) }

/* ── Mock screens ── */
.mock-dash, .mock-app, .mock-iot { height: 100%; padding: 12px; display: flex; flex-direction: column; gap: 8px }
.mock-top { display: flex; align-items: center; gap: 6px; padding-bottom: 8px; border-bottom: 1px solid var(--border) }
.m-dots { display: flex; gap: 4px }
.m-dots span { width: 8px; height: 8px; border-radius: 50%; display: block }
.m-dots span:nth-child(1){background:#FF5F56} .m-dots span:nth-child(2){background:#FFBD2E} .m-dots span:nth-child(3){background:#27C93F}
.mock-body { display: flex; flex: 1; gap: 8px }
.mock-side { width: 36px; display: flex; flex-direction: column; gap: 6px; padding: 6px 4px }
.ms-item { height: 8px; border-radius: 4px; background: rgba(255,255,255,.07) }
.ms-item.active { background: linear-gradient(90deg,var(--cyan),var(--blue)); width: 100% }
.mock-content { flex: 1; display: flex; flex-direction: column; gap: 6px; padding: 6px }
.mc-bar { height: 4px; border-radius: 2px; background: rgba(255,255,255,.08); margin-bottom: 4px }
.mc-chart { display: flex; align-items: flex-end; gap: 4px; flex: 1; padding-top: 4px }
.mcc-bar { flex: 1; border-radius: 3px 3px 0 0; background: rgba(255,255,255,.1); min-height: 6px }
.mock-phone-notch { width: 60px; height: 12px; background: var(--bg); border-radius: 0 0 8px 8px; margin: 0 auto 12px }
.mock-app-body { flex: 1; display: flex; flex-direction: column; gap: 8px; padding: 0 8px }
.mab-card { border-radius: 8px; padding: 10px; border: 1px solid rgba(0,212,255,.15) }
.mab-num { font-size: 1.1rem; font-weight: 900 }
.mab-label { font-size: .6rem; color: var(--muted) }
.mab-list { display: flex; flex-direction: column; gap: 6px }
.mab-item { display: flex; align-items: center; gap: 6px }
.mab-dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0 }
.mab-bar { height: 4px; border-radius: 2px; background: linear-gradient(90deg, rgba(0,212,255,.4), rgba(79,125,255,.2)) }
.mock-sensors { display: flex; flex-direction: column; gap: 6px }
.ms-sensor { display: flex; align-items: center; gap: 8px; padding: 6px 8px; background: rgba(255,255,255,.03); border-radius: 6px; border: 1px solid var(--border) }
.mss-val { font-size: .8rem; font-weight: 700; min-width: 44px }
.mss-label { font-size: .65rem; color: var(--muted); flex: 1 }
.mss-bar { width: 40px; height: 3px; border-radius: 2px }
.mss-bar.ok { background: linear-gradient(90deg,var(--cyan),var(--blue)) }
.mss-bar.warn { background: #F87171 }
.mock-alert { display: flex; align-items: center; gap: 6px; font-size: .65rem; color: #F87171; padding: 6px 8px; border: 1px solid rgba(248,113,113,.2); border-radius: 6px; background: rgba(248,113,113,.05); margin-top: 4px }
.mock-alert svg { width: 12px; height: 12px; flex-shrink: 0 }

/* ── IA Section ── */
.ia-section { padding: 100px 0; background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); position: relative; overflow: hidden; z-index: 2 }
.ia-bg-glow { position: absolute; width: 600px; height: 600px; border-radius: 50%; background: radial-gradient(circle, rgba(124,58,237,.12) 0%, transparent 70%); top: 50%; right: -100px; transform: translateY(-50%); pointer-events: none }
.ia-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center }
.ia-features { display: flex; flex-direction: column; gap: 24px; margin-top: 8px }
.ia-features li { display: flex; gap: 16px; align-items: flex-start }
.ia-feat-icon { width: 40px; height: 40px; border-radius: 10px; background: rgba(0,212,255,.08); border: 1px solid rgba(0,212,255,.15); display: flex; align-items: center; justify-content: center; color: var(--cyan); flex-shrink: 0 }
.ia-feat-icon svg { width: 16px; height: 16px }
.ia-features strong { display: block; font-size: .95rem; font-weight: 700; margin-bottom: 4px }
.ia-features p { font-size: .85rem; color: var(--muted); line-height: 1.6 }
.ia-holo-card { background: rgba(11,15,25,.8); border: 1px solid rgba(0,212,255,.2); border-radius: var(--r-lg); padding: 28px; box-shadow: 0 0 60px rgba(0,212,255,.08), 0 0 120px rgba(124,58,237,.05), inset 0 1px 0 rgba(255,255,255,.06); backdrop-filter: blur(20px) }
.ia-holo-header { display: flex; align-items: center; gap: 10px; font-size: .75rem; font-weight: 700; color: var(--cyan); letter-spacing: 1px; text-transform: uppercase; margin-bottom: 20px; padding-bottom: 14px; border-bottom: 1px solid rgba(0,212,255,.1) }
.ia-live-dot { width: 7px; height: 7px; border-radius: 50%; background: #4ADE80; box-shadow: 0 0 6px #4ADE80; animation: blink 1.5s infinite }
.ia-chat { display: flex; flex-direction: column; gap: 14px; margin-bottom: 20px }
.ia-msg { display: flex; align-items: flex-start; gap: 10px }
.ia-msg.user { flex-direction: row-reverse }
.ia-avatar { width: 30px; height: 30px; border-radius: 50%; background: linear-gradient(135deg,var(--cyan),var(--violet)); display: flex; align-items: center; justify-content: center; font-size: .7rem; font-weight: 800; flex-shrink: 0; color: #fff }
.ia-msg.user .ia-avatar { background: rgba(255,255,255,.1); color: var(--muted) }
.ia-bubble { padding: 10px 14px; border-radius: 12px; font-size: .82rem; line-height: 1.5; max-width: 85% }
.ia-msg.ai .ia-bubble { background: rgba(0,212,255,.08); border: 1px solid rgba(0,212,255,.15); color: var(--text) }
.ia-msg.user .ia-bubble { background: rgba(79,125,255,.1); border: 1px solid rgba(79,125,255,.2); color: var(--muted) }
.ia-msg.typing .ia-bubble { display: flex; gap: 4px; align-items: center }
.ia-msg.typing .ia-bubble span { width: 6px; height: 6px; border-radius: 50%; background: var(--cyan); animation: typing .9s ease-in-out infinite }
.ia-msg.typing .ia-bubble span:nth-child(2){animation-delay:.2s} .ia-msg.typing .ia-bubble span:nth-child(3){animation-delay:.4s}
@keyframes typing {0%,80%,100%{opacity:.3;transform:scale(.8)} 40%{opacity:1;transform:scale(1)}}
.ia-metrics-row { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; padding-top: 16px; border-top: 1px solid rgba(255,255,255,.06) }
.ia-mr-item { text-align: center }
.ia-mr-val { font-size: 1.4rem; font-weight: 900 }
.ia-mr-label { font-size: .7rem; color: var(--muted); margin-top: 2px }

/* ── Contact ── */
.contact-wrap { display: grid; grid-template-columns: 1fr 1.2fr; gap: 64px; align-items: start }
.contact-info-list { display: flex; flex-direction: column; gap: 20px }
.ci-item { display: flex; align-items: center; gap: 14px }
.ci-icon { width: 42px; height: 42px; border-radius: 10px; background: rgba(0,212,255,.08); border: 1px solid rgba(0,212,255,.15); display: flex; align-items: center; justify-content: center; color: var(--cyan); flex-shrink: 0 }
.ci-icon svg { width: 16px; height: 16px }
.ci-item strong { display: block; font-size: .9rem; font-weight: 700; margin-bottom: 2px }
.ci-item p { font-size: .8rem; color: var(--muted) }
.contact-form-wrap { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-lg); padding: 36px; box-shadow: 0 0 0 1px rgba(255,255,255,.03) }
.contact-form h3 { font-size: 1.25rem; font-weight: 800; margin-bottom: 24px }
.form-2col { display: grid; grid-template-columns: 1fr 1fr; gap: 16px }
.fg { margin-bottom: 16px }
.fg label { display: block; font-size: .78rem; font-weight: 600; color: var(--muted); margin-bottom: 8px; letter-spacing: .5px }
.fg input, .fg select, .fg textarea { width: 100%; background: var(--bg); border: 1px solid rgba(255,255,255,.1); border-radius: 10px; padding: 12px 14px; color: #fff; font-size: .9rem; transition: all .2s; outline: none; color-scheme: dark; -webkit-appearance: none }
.fg input:focus, .fg select:focus, .fg textarea:focus { border-color: rgba(0,212,255,.5); background: rgba(0,212,255,.03); box-shadow: 0 0 0 3px rgba(0,212,255,.1) }
.fg input::placeholder, .fg textarea::placeholder { color: rgba(184,194,209,.35) }
.fg input:-webkit-autofill { -webkit-box-shadow: 0 0 0 1000px #0B0F19 inset !important; -webkit-text-fill-color: #fff !important }
.fg select { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='7' viewBox='0 0 12 7'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23B8C2D1' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 40px }
.fg select option { background: #0B0F19; color: #fff }
.fe { display: block; font-size: .75rem; color: #F87171; margin-top: 4px }
.btn-submit { width: 100%; padding: 14px; border-radius: 10px; background: linear-gradient(135deg, var(--cyan), var(--blue)); color: #fff; font-weight: 700; font-size: 1rem; border: none; cursor: pointer; transition: all .3s; box-shadow: 0 0 20px rgba(0,212,255,.2); margin-top: 4px }
.btn-submit:hover { transform: translateY(-1px); box-shadow: 0 0 35px rgba(0,212,255,.35) }
.btn-submit:disabled { opacity: .6; cursor: not-allowed; transform: none }
.form-success { margin-top: 16px; padding: 14px; border-radius: 10px; background: rgba(74,222,128,.07); border: 1px solid rgba(74,222,128,.2); color: #4ADE80; font-size: .9rem; font-weight: 600; text-align: center }
.form-error { margin-top: 16px; padding: 14px; border-radius: 10px; background: rgba(248,113,113,.07); border: 1px solid rgba(248,113,113,.2); color: #F87171; font-size: .85rem; text-align: center }

/* ── Footer ── */
.footer { padding: 72px 0 32px; border-top: 1px solid var(--border); position: relative; z-index: 2; overflow: hidden }
.footer-glow { position: absolute; width: 500px; height: 200px; border-radius: 50%; background: radial-gradient(ellipse, rgba(0,212,255,.05) 0%, transparent 70%); top: 0; left: 50%; transform: translateX(-50%); pointer-events: none }
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px }
.footer-brand p { font-size: .875rem; color: var(--muted); margin-top: 16px; max-width: 280px; line-height: 1.7 }
.footer-social { display: flex; gap: 10px; margin-top: 24px }
.footer-social a { width: 36px; height: 36px; border-radius: 8px; background: rgba(255,255,255,.04); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; color: var(--muted); transition: all .2s }
.footer-social a:hover { background: rgba(0,212,255,.1); border-color: rgba(0,212,255,.2); color: var(--cyan) }
.footer-social a svg { width: 16px; height: 16px }
.footer-col h4 { font-size: .75rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--muted); margin-bottom: 18px; opacity: .5 }
.footer-col ul { display: flex; flex-direction: column; gap: 12px }
.footer-col a { font-size: .875rem; color: var(--muted); transition: color .2s }
.footer-col a:hover { color: #fff }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 28px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px }
.footer-bottom p { font-size: .82rem; color: rgba(184,194,209,.4) }

/* ── Reveal ── */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s cubic-bezier(.16,1,.3,1), transform .7s cubic-bezier(.16,1,.3,1) }
.reveal.active { opacity: 1; transform: translateY(0) }
.delay-1 { transition-delay: .1s }
.delay-2 { transition-delay: .2s }
.delay-3 { transition-delay: .3s }

/* ── Responsive ── */
html, body { max-width: 100%; overflow-x: hidden }
* { min-width: 0 }

@media(max-width:1200px) {
  .services-grid { grid-template-columns: repeat(2,1fr) }
  .portfolio-grid { grid-template-columns: 1fr 1fr }
  .ia-grid { gap: 48px }
}
@media(max-width:1024px) {
  .section { padding: 72px 0 }
  .hero-inner { grid-template-columns: 1fr; gap: 0; padding: 40px 28px }
  .hero-visual { display: none }
  .hero-scroll-cue { display: none }
  .hero-title { font-size: clamp(2.5rem, 7vw, 4rem) }
  .metrics-grid { grid-template-columns: repeat(2,1fr) }
  .ia-grid { grid-template-columns: 1fr }
  .ia-bg-glow { display: none }
  .contact-wrap { grid-template-columns: 1fr }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px }
  .portfolio-grid { grid-template-columns: 1fr }
}
@media(max-width:768px) {
  .section { padding: 56px 0 }
  .section-inner { padding: 0 20px }
  .nav-links, .btn-ghost-sm, .btn-cyan-sm.desktop { display: none }
  .hamburger { display: flex }
  .hero { min-height: 100svh }
  .hero-inner { padding: 28px 20px 48px }
  .hero-title { font-size: clamp(2.2rem, 9vw, 3rem) }
  .hero-btns { flex-direction: column }
  .hero-btns a { width: 100%; justify-content: center }
  .hero-metrics { gap: 16px }
  .hm-num,.hm-plus { font-size: 1.6rem }
  .hero-badge { font-size: .72rem }
  .services-grid { grid-template-columns: 1fr }
  .plat-card { padding: 24px; }
  .plat-hub { width: 280px; height: 280px }
  .plat-metrics { grid-template-columns: repeat(2,1fr) }
  .metrics-grid { grid-template-columns: 1fr 1fr }
  .metric-card { padding: 32px 16px }
  .metric-num { font-size: 2.5rem }
  .portfolio-grid { grid-template-columns: 1fr }
  .form-2col { grid-template-columns: 1fr }
  .footer-top { grid-template-columns: 1fr }
  .footer-bottom { justify-content: center; text-align: center }
  .contact-form-wrap { padding: 24px 20px }
  .nav-actions .btn-cyan-sm { display: none }
  .nav-actions .btn-cyan-sm.mobile { display: inline-flex }
}
@media(max-width:480px) {
  .hero-title { font-size: clamp(1.9rem, 10vw, 2.5rem) }
  .section-title { font-size: clamp(2rem, 9vw, 2.8rem) }
  .metrics-grid { grid-template-columns: 1fr }
  .metric-card { padding: 28px 20px }
  .ia-holo-card { padding: 20px 16px }
  .plat-hub { width: 260px; height: 260px }
  .hub-core { width: 60px; height: 60px; font-size: .9rem }
}