/* =====================================================================
   aiiop.ai — Main Stylesheet
   ===================================================================== */

/* -- Reset & Tokens ---------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --or:      #E85A1B;
  --or2:     #FF6B35;
  --or-dim:  rgba(232,90,27,.12);
  --or-bdr:  rgba(232,90,27,.28);
  --bg:      #09090B;
  --bg2:     #111113;
  --bg3:     #18181B;
  --bg4:     #222226;
  --bdr:     rgba(255,255,255,.07);
  --text:    #F4F4F5;
  --muted:   #A1A1AA;
  --white:   #FFFFFF;
}
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
h1,h2,h3,h4,h5 { font-family: 'Inter', sans-serif; line-height: 1.15; letter-spacing: -.02em; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }

/* -- Noise overlay ----------------------------------------------------- */
body::before {
  content: '';
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  opacity: .025;
  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");
}

/* -- Utility ----------------------------------------------------------- */
.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }
.or { color: var(--or); }
.tag {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--or-dim); border: 1px solid var(--or-bdr);
  color: var(--or); font-size: 11px; letter-spacing: .1em; text-transform: uppercase;
  padding: 5px 14px; border-radius: 2px;
}
.tag::before { content: '.'; font-size: 7px; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.3} }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: 'Inter', sans-serif; font-weight: 700;
  font-size: 13px; letter-spacing: .06em;
  padding: 13px 28px; border-radius: 2px;
  cursor: pointer; border: none; transition: all .18s;
  white-space: nowrap;
}
.btn-primary { background: var(--or); color: #fff; }
.btn-primary:hover { background: var(--or2); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--bdr); }
.btn-ghost:hover { border-color: var(--or); color: var(--or); }

.section-label { font-size: 10px; letter-spacing: .18em; color: var(--or); margin-bottom: 18px; }

/* -- NAV --------------------------------------------------------------- */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  border-bottom: 1px solid var(--bdr);
  background: rgba(9,9,11,.88);
  backdrop-filter: blur(14px);
}
.nav-inner {
  max-width: 1140px; margin: 0 auto; padding: 0 24px;
  height: 72px; display: flex; align-items: center; justify-content: space-between;
}
.nav-logo { display: flex; align-items: center; }
.nav-logo img { height: 156px; width: auto; display: block; object-fit: contain; padding: 20px 0px;}
.nav-logo span { color: var(--or); }
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-link { font-size: 12px; color: var(--muted); padding: 7px 14px; border-radius: 2px; transition: color .15s; }
.nav-link:hover { color: var(--text); }
.nav-cta { font-size: 12px; padding: 8px 18px; }

/* -- HERO -------------------------------------------------------------- */
.hero {
  min-height: 100vh;
  display: flex; align-items: center;
  padding: 120px 0 80px;
  position: relative; overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute; top: -200px; left: 50%; transform: translateX(-50%);
  width: 900px; height: 600px;
  background: radial-gradient(ellipse at center, rgba(232,90,27,.14) 0%, transparent 65%);
  pointer-events: none;
}
.hero-inner {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr 420px; gap: 80px; align-items: center;
}
.hero-eyebrow { margin-bottom: 28px; }
.hero h1 { font-size: clamp(44px,6vw,74px); font-weight: 800; color: var(--white); margin-bottom: 24px; line-height: 1.05; }
.hero h1 em { font-style: normal; color: var(--or); }
.hero-sub { font-size: 16px; color: var(--muted); line-height: 1.8; max-width: 500px; margin-bottom: 40px; }
.hero-btns { display: flex; gap: 12px; flex-wrap: wrap; }

/* -- Terminal ---------------------------------------------------------- */
.hero-terminal { background: var(--bg3); border: 1px solid var(--bdr); border-radius: 6px; overflow: hidden; }
.terminal-bar { background: var(--bg4); padding: 10px 16px; display: flex; align-items: center; gap: 8px; border-bottom: 1px solid var(--bdr); }
.terminal-dot { width: 10px; height: 10px; border-radius: 50%; }
.terminal-label { font-size: 11px; color: var(--muted); letter-spacing: .08em; margin-left: 4px; }
.terminal-body { padding: 20px; font-family: 'DM Mono', monospace; font-size: 12px; line-height: 1.9; }
.t-comment { color: #555; }
.t-key { color: var(--or); }
.t-val { color: #a8d8a8; }
.t-val-orange { color: var(--or2); }
.t-brace { color: var(--muted); }
.t-cursor { display: inline-block; width: 7px; height: 13px; background: var(--or); vertical-align: middle; animation: blink .9s step-end infinite; }
@keyframes blink { 50%{opacity:0} }

/* -- STATS STRIP ------------------------------------------------------- */
.stats-strip { border-top: 1px solid var(--bdr); border-bottom: 1px solid var(--bdr); background: var(--bg2); padding: 32px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4,1fr); }
.stat-item { padding: 0 32px; border-right: 1px solid var(--bdr); text-align: center; }
.stat-item:last-child { border-right: none; }
.stat-num { font-size: 38px; font-weight: 800; color: var(--white); line-height: 1; }
.stat-num span { color: var(--or); }
.stat-desc { font-size: 11px; color: var(--muted); margin-top: 6px; letter-spacing: .06em; }

/* -- PROBLEM ----------------------------------------------------------- */
.problem-section { padding: 100px 0; }
.problem-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.problem-left h2 { font-size: clamp(32px,4vw,50px); font-weight: 800; color: var(--white); margin-bottom: 20px; }
.problem-left p { color: var(--muted); font-size: 15px; line-height: 1.8; }
.problem-list { list-style: none; display: flex; flex-direction: column; gap: 14px; margin-top: 8px; }
.problem-item { display: flex; align-items: flex-start; gap: 14px; background: var(--bg3); border: 1px solid var(--bdr); padding: 16px 20px; border-radius: 3px; transition: border-color .2s; }
.problem-item:hover { border-color: var(--or-bdr); }
.problem-icon { width: 32px; height: 32px; flex-shrink: 0; background: var(--or-dim); border: 1px solid var(--or-bdr); border-radius: 2px; display: flex; align-items: center; justify-content: center; color: var(--or); font-size: 14px; }
.problem-text { font-size: 13px; color: var(--text); line-height: 1.6; }
.problem-text strong { color: var(--white); display: block; margin-bottom: 3px; font-size: 15px; }

/* -- PLATFORM CARDS ---------------------------------------------------- */
.platform-section { padding: 100px 0; }
.platform-header { text-align: center; margin-bottom: 60px; }
.platform-header h2 { font-size: clamp(32px,4vw,52px); font-weight: 800; color: var(--white); margin-bottom: 16px; }
.platform-header p { color: var(--muted); font-size: 15px; max-width: 520px; margin: 0 auto; }
.platform-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; }
.platform-card { background: var(--bg2); border: 1px solid var(--bdr); padding: 48px 44px; position: relative; overflow: hidden; transition: border-color .2s; }
.platform-card:hover { border-color: var(--or-bdr); }
.platform-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: linear-gradient(90deg,transparent,var(--or),transparent); opacity: 0; transition: opacity .3s; }
.platform-card:hover::before { opacity: 1; }
.card-product-label { font-size: 10px; letter-spacing: .18em; color: var(--or); margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.card-product-label::after { content: ''; flex: 1; height: 1px; background: var(--or-bdr); }
.card-icon { width: 52px; height: 52px; background: var(--or-dim); border: 1px solid var(--or-bdr); border-radius: 3px; display: flex; align-items: center; justify-content: center; margin-bottom: 24px; }
.card-icon svg { width: 24px; height: 24px; stroke: var(--or); fill: none; stroke-width: 1.5; }
.platform-card h3 { font-size: 26px; font-weight: 800; color: var(--white); margin-bottom: 10px; }
.card-sub { color: var(--muted); font-size: 13px; margin-bottom: 28px; line-height: 1.7; }
.card-features { list-style: none; display: flex; flex-direction: column; gap: 10px; margin-bottom: 28px; }
.card-feat { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--text); }
.card-feat::before { content: '>'; color: var(--or); font-size: 12px; flex-shrink: 0; }
.card-cta { display: flex; align-items: center; justify-content: space-between; }
.card-cta-link { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; font-size: 12px; letter-spacing: .06em; color: var(--or); transition: gap .2s; }
.card-cta-link:hover { gap: 14px; }
.card-badge { font-size: 10px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); background: var(--bg4); border: 1px solid var(--bdr); padding: 4px 10px; border-radius: 2px; }

/* -- Fabric mode pills ------------------------------------------------- */
.fabric-modes { display: flex; gap: 8px; flex-wrap: wrap; margin: 20px 0 28px; }
.mode-pill { font-family: 'DM Mono', monospace; font-size: 10px; font-weight: 500; padding: 4px 10px; border-radius: 2px; border: 1px solid; letter-spacing: .05em; }
.mode-pill.cls  { color: #60A5FA; border-color: rgba(96,165,250,.3); background: rgba(96,165,250,.08); }
.mode-pill.dapt { color: #A78BFA; border-color: rgba(167,139,250,.3); background: rgba(167,139,250,.08); }
.mode-pill.reg  { color: #34D399; border-color: rgba(52,211,153,.3); background: rgba(52,211,153,.08); }
.mode-pill.ner  { color: #F59E0B; border-color: rgba(245,158,11,.3); background: rgba(245,158,11,.08); }
.mode-pill.cus  { color: var(--muted); border-color: var(--bdr); background: var(--bg4); }

/* -- TOGETHER ---------------------------------------------------------- */
.together-section { padding: 80px 0; background: var(--bg2); border-top: 1px solid var(--bdr); border-bottom: 1px solid var(--bdr); }
.together-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.together-inner h2 { font-size: clamp(28px,3.5vw,44px); font-weight: 800; color: var(--white); margin-bottom: 18px; }
.together-inner p { color: var(--muted); font-size: 14px; line-height: 1.8; }
.flow-diagram { display: flex; flex-direction: column; gap: 0; }
.flow-row { display: flex; align-items: center; }
.flow-box { flex: 1; padding: 16px 20px; background: var(--bg3); border: 1px solid var(--bdr); font-size: 12px; color: var(--text); }
.flow-box.highlight { border-color: var(--or-bdr); color: var(--or); background: var(--or-dim); }
.flow-down { width: 1px; background: var(--or-bdr); height: 20px; margin: 0 auto 0 calc(50% - .5px); }

/* -- FABRIC DETAIL ----------------------------------------------------- */
.fabric-detail { padding: 80px 0; border-top: 1px solid var(--bdr); }
.fabric-detail-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.fabric-detail h3 { font-size: clamp(24px,3vw,36px); font-weight: 800; color: var(--white); margin-bottom: 14px; }
.fabric-detail p { color: var(--muted); font-size: 14px; line-height: 1.8; margin-bottom: 28px; }
.fabric-pillars { display: flex; flex-direction: column; gap: 14px; }
.fabric-pillar { display: flex; gap: 14px; align-items: flex-start; padding: 16px 18px; background: var(--bg2); border: 1px solid var(--bdr); border-radius: 3px; transition: border-color .2s; }
.fabric-pillar:hover { border-color: var(--or-bdr); }
.fp-icon { width: 34px; height: 34px; flex-shrink: 0; background: var(--or-dim); border: 1px solid var(--or-bdr); border-radius: 2px; display: flex; align-items: center; justify-content: center; font-size: 15px; }
.fp-body strong { display: block; font-size: 14px; color: var(--white); margin-bottom: 3px; }
.fp-body span { font-size: 12px; color: var(--muted); line-height: 1.6; }

/* Fabric terminal */
.fabric-term { background: var(--bg3); border: 1px solid var(--bdr); border-radius: 6px; overflow: hidden; position: sticky; top: 80px; }
.fabric-term-bar { background: var(--bg4); padding: 10px 16px; display: flex; align-items: center; gap: 8px; border-bottom: 1px solid var(--bdr); }
.fabric-term-body { padding: 20px; font-family: 'DM Mono', monospace; font-size: 11.5px; line-height: 1.85; }
.ft-section { font-size: 9px; letter-spacing: .14em; text-transform: uppercase; color: #444; margin: 12px 0 6px; padding-bottom: 4px; border-bottom: 1px solid #222; }
.ft-section:first-child { margin-top: 0; }
.ft-row { display: flex; justify-content: space-between; }
.ft-k { color: var(--or); }
.ft-v { color: #a8d8a8; }
.ft-vo { color: var(--or2); }

/* -- USE CASES --------------------------------------------------------- */
.usecases-section { padding: 100px 0; }
.usecases-header { text-align: center; margin-bottom: 60px; }
.usecases-header h2 { font-size: clamp(28px,4vw,48px); font-weight: 800; color: var(--white); margin-bottom: 14px; }
.usecases-header p { color: var(--muted); font-size: 14px; }
.usecases-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 2px; }
.usecase-card { background: var(--bg2); border: 1px solid var(--bdr); padding: 32px 28px; transition: border-color .2s, transform .2s; }
.usecase-card:hover { border-color: var(--or-bdr); transform: translateY(-3px); }
.usecase-num { font-size: 11px; font-weight: 800; color: var(--or); letter-spacing: .14em; margin-bottom: 16px; }
.usecase-icon { width: 44px; height: 44px; border: 1px solid var(--bdr); border-radius: 2px; display: flex; align-items: center; justify-content: center; font-size: 20px; margin-bottom: 18px; background: var(--bg3); }
.usecase-card h4 { font-size: 17px; font-weight: 700; color: var(--white); margin-bottom: 10px; }
.usecase-card p { font-size: 12px; color: var(--muted); line-height: 1.7; }
.usecase-tag { margin-top: 16px; font-size: 10px; letter-spacing: .1em; color: var(--or); font-family: 'DM Mono', monospace; }

/* -- ENGAGEMENT -------------------------------------------------------- */
.engagement-section { padding: 100px 0; background: var(--bg2); border-top: 1px solid var(--bdr); }
.engagement-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.engagement-inner h2 { font-size: clamp(28px,3.5vw,46px); font-weight: 800; color: var(--white); margin-bottom: 20px; }
.engagement-inner p { color: var(--muted); font-size: 14px; line-height: 1.8; margin-bottom: 32px; }
.engagement-steps { display: flex; flex-direction: column; gap: 20px; }
.estep { display: flex; gap: 18px; align-items: flex-start; }
.estep-num { width: 36px; height: 36px; flex-shrink: 0; background: var(--or-dim); border: 1px solid var(--or-bdr); border-radius: 2px; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 14px; color: var(--or); }
.estep-text strong { font-size: 15px; color: var(--white); display: block; margin-bottom: 4px; }
.estep-text span { font-size: 12px; color: var(--muted); }

/* -- CTA --------------------------------------------------------------- */
.cta-section { padding: 120px 0; text-align: center; position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse at center,rgba(232,90,27,.1) 0%,transparent 60%); pointer-events: none; }
.cta-section h2 { font-size: clamp(36px,5vw,64px); font-weight: 800; color: var(--white); margin-bottom: 20px; }
.cta-section p { color: var(--muted); font-size: 15px; margin-bottom: 44px; }
.cta-btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* -- FOOTER ------------------------------------------------------------ */
footer { background: var(--bg2); border-top: 1px solid var(--bdr); padding: 60px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-brand h3 { font-weight: 800; font-size: 22px; color: var(--white); margin-bottom: 14px; }
.footer-brand h3 span { color: var(--or); }
.footer-brand p { font-size: 12px; color: var(--muted); line-height: 1.8; max-width: 280px; }
.footer-col h4 { font-size: 13px; font-weight: 700; color: var(--white); margin-bottom: 16px; letter-spacing: .05em; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col li a { font-size: 12px; color: var(--muted); transition: color .15s; }
.footer-col li a:hover { color: var(--or); }
.footer-bottom { border-top: 1px solid var(--bdr); padding-top: 24px; display: flex; align-items: center; justify-content: space-between; }
.footer-bottom p { font-size: 11px; color: var(--muted); }

/* -- ANIMATIONS -------------------------------------------------------- */
.fade-up { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ======================================================================
   RESPONSIVE
   ====================================================================== */

/* -- Tablet (=900px) --------------------------------------------------- */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 32px; }
  .hero-terminal { display: none; }
  .problem-grid, .platform-cards, .together-inner,
  .fabric-detail-inner, .engagement-inner, .footer-grid {
    grid-template-columns: 1fr; gap: 28px;
  }
  .stats-grid    { grid-template-columns: 1fr 1fr; gap: 0; }
  .usecases-grid { grid-template-columns: 1fr 1fr; }
  .stat-item     { border-bottom: 1px solid var(--bdr); }
  .nav-links .nav-link { display: none; }

  /* Section vertical padding */
  .hero               { min-height: auto; padding: 88px 0 48px; }
  .stats-strip        { padding: 24px 0; }
  .problem-section    { padding: 60px 0; }
  .platform-section   { padding: 60px 0; }
  .together-section   { padding: 48px 0; }
  .fabric-detail      { padding: 48px 0; }
  .usecases-section   { padding: 60px 0; }
  .engagement-section { padding: 60px 0; }
  .cta-section        { padding: 72px 0; }
  footer              { padding: 48px 0 24px; }

  /* Component tightening */
  .platform-card   { padding: 32px 24px; }
  .platform-header { margin-bottom: 32px; }
  .usecases-header { margin-bottom: 32px; }
  .footer-grid     { gap: 32px; }
  .together-inner  { gap: 32px; }
  .engagement-inner{ gap: 32px; }
  .fabric-detail-inner { gap: 32px; }
}

/* -- Mobile (=560px) --------------------------------------------------- */
@media (max-width: 560px) {
  .usecases-grid { grid-template-columns: 1fr; }
  .stats-grid    { grid-template-columns: 1fr 1fr; }

  .hero           { padding: 80px 0 40px; }
  .problem-section,
  .platform-section,
  .usecases-section,
  .engagement-section { padding: 48px 0; }
  .together-section,
  .fabric-detail  { padding: 40px 0; }
  .cta-section    { padding: 56px 0; }
  footer          { padding: 40px 0 20px; }

  .hero h1        { font-size: 38px; }
  .cta-section h2 { font-size: 36px; }
  .hero-btns      { flex-direction: column; }
  .cta-btns       { flex-direction: column; align-items: center; }
  .platform-card  { padding: 28px 20px; }
  .fabric-pillar  { padding: 14px; }
  .usecase-card   { padding: 24px 20px; }
  .estep          { gap: 12px; }
  .footer-grid    { gap: 24px; }
  .fabric-modes   { gap: 6px; }
  .stat-item      { padding: 16px; }
  .fabric-term    { position: static; }
}
/* Contact Form Styles */
.contact-form-wrapper {
  background: #111;
  border: 1px solid #222;
  border-radius: 12px;
  padding: 32px;
  max-width: 400px;
}

.contact-form-wrapper h3 {
  font-size: 1.25rem;
  margin-bottom: 24px;
  color: #fff;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 500;
  color: #888;
}

.form-group input,
.form-group textarea {
  background: #0a0a0a;
  border: 1px solid #333;
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 0.95rem;
  color: #fff;
  font-family: inherit;
  transition: all 0.2s ease;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #555;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #E85A1B;
  box-shadow: 0 0 0 2px rgba(232, 90, 27, 0.15);
}

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

@media (max-width: 900px) {
  .engagement-inner {
    flex-direction: column;
  }
  
  .contact-form-wrapper {
    max-width: 100%;
    margin-top: 32px;
  }
}