/* =========================================================
   Nilabz — Corporate website styles
   Modern dark theme · indigo/violet accent · glass + glow
   ========================================================= */

:root {
  --bg:            #0a0a0f;
  --bg-alt:        #0e0e16;
  --surface:       #14141f;
  --surface-2:     #1b1b29;
  --border:        rgba(255,255,255,.08);
  --border-hover:  rgba(255,255,255,.16);

  --text:          #e9e9f2;
  --text-soft:     #a2a2b8;
  --text-mute:     #6c6c85;

  --brand:         #6366f1;
  --brand-2:       #8b5cf6;
  --brand-3:       #22d3ee;
  --grad:          linear-gradient(120deg, #818cf8 0%, #a78bfa 45%, #22d3ee 100%);
  --grad-soft:     linear-gradient(120deg, rgba(99,102,241,.18), rgba(139,92,246,.12));

  --radius:        16px;
  --radius-lg:     22px;
  --shadow:        0 20px 50px -20px rgba(0,0,0,.6);
  --maxw:          1160px;

  --font-head: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }

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

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 780px; }

h1, h2, h3, h4 { font-family: var(--font-head); font-weight: 600; line-height: 1.15; letter-spacing: -.02em; }

.grad {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4em;
  font-family: var(--font-head); font-weight: 500; font-size: .95rem;
  padding: 12px 22px; border-radius: 12px; cursor: pointer;
  border: 1px solid transparent; transition: transform .18s ease, box-shadow .25s ease, background .25s ease;
  white-space: nowrap;
}
.btn-lg { padding: 15px 28px; font-size: 1.02rem; }
.btn-primary {
  color: #fff; background: linear-gradient(120deg, var(--brand), var(--brand-2));
  box-shadow: 0 10px 30px -10px rgba(99,102,241,.7);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 40px -12px rgba(99,102,241,.85); }
.btn-ghost { color: var(--text); background: rgba(255,255,255,.04); border-color: var(--border); }
.btn-ghost:hover { background: rgba(255,255,255,.08); border-color: var(--border-hover); transform: translateY(-2px); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  background: rgba(10,10,15,.6); border-bottom: 1px solid transparent;
  transition: background .3s ease, border-color .3s ease;
}
.site-header.scrolled { background: rgba(10,10,15,.85); border-bottom-color: var(--border); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }

.brand { display: inline-flex; align-items: center; gap: 10px; font-family: var(--font-head); font-weight: 700; font-size: 1.25rem; }
.brand-mark {
  width: 40px; height: 40px; display: grid; place-items: center;
  overflow: visible;
}
.brand-mark img { width: 130%; height: 130%; object-fit: contain; display: block; }
.brand-name { letter-spacing: -.02em; }

.nav { display: flex; gap: 30px; }
.nav a { color: var(--text-soft); font-size: .95rem; font-weight: 450; transition: color .2s ease; position: relative; }
.nav a:hover { color: var(--text); }
.nav a::after { content:''; position:absolute; left:0; bottom:-6px; width:0; height:2px; background: var(--grad); transition: width .25s ease; }
.nav a:hover::after { width: 100%; }

.nav-cta { display: inline-flex; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: .3s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

.mobile-nav { display: none; flex-direction: column; gap: 4px; padding: 0 24px; overflow: hidden; max-height: 0; transition: max-height .35s ease, padding .35s ease; background: rgba(10,10,15,.96); border-bottom: 1px solid var(--border); }
.mobile-nav.open { max-height: 420px; padding: 12px 24px 22px; }
.mobile-nav a { padding: 12px 4px; color: var(--text-soft); border-bottom: 1px solid var(--border); }
.mobile-nav a.btn { border: 0; color: #fff; margin-top: 10px; justify-content: center; }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 96px 0 80px; overflow: hidden; }
.hero-glow {
  position: absolute; top: -240px; left: 50%; transform: translateX(-50%);
  width: 900px; height: 700px; pointer-events: none;
  background: radial-gradient(closest-side, rgba(99,102,241,.35), transparent 70%),
              radial-gradient(closest-side, rgba(34,211,238,.18), transparent 70%);
  filter: blur(20px); opacity: .8;
}
.hero-inner { position: relative; text-align: center; max-width: 860px; margin: 0 auto; }
.eyebrow { font-family: var(--font-head); font-size: .8rem; letter-spacing: .14em; text-transform: uppercase; color: var(--brand-3); font-weight: 500; }
.hero-title { font-size: clamp(2.4rem, 6vw, 4.2rem); margin: 20px 0 22px; font-weight: 700; }
.hero-sub { font-size: clamp(1.05rem, 2vw, 1.25rem); color: var(--text-soft); max-width: 640px; margin: 0 auto 34px; }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 66px; padding-top: 40px; border-top: 1px solid var(--border); }
.stat-num { display: block; font-family: var(--font-head); font-size: 2.2rem; font-weight: 700; }
.stat-num::after { content: attr(data-suffix); }
.stat-label { font-size: .85rem; color: var(--text-mute); }

/* ---------- Trust row ---------- */
.trust { padding: 30px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: var(--bg-alt); }
.trust-label { text-align: center; color: var(--text-mute); font-size: .85rem; margin-bottom: 18px; }
.trust-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px 40px; }
.trust-row span { font-family: var(--font-head); font-weight: 500; color: var(--text-soft); opacity: .8; font-size: 1.05rem; transition: opacity .2s, color .2s; }
.trust-row span:hover { opacity: 1; color: var(--text); }

/* ---------- Sections ---------- */
.section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 56px; }
.section-title { font-size: clamp(1.9rem, 4vw, 2.8rem); margin: 14px 0 16px; }
.section-lead { color: var(--text-soft); font-size: 1.08rem; }

.grid { display: grid; gap: 22px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

/* ---------- Cards ---------- */
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px 26px; transition: transform .25s ease, border-color .25s ease, background .25s ease;
  position: relative; overflow: hidden;
}
.card::before {
  content:''; position:absolute; inset:0; border-radius: inherit; padding: 1px;
  background: var(--grad); opacity: 0; transition: opacity .3s ease;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude; pointer-events: none;
}
.card:hover { transform: translateY(-6px); background: var(--surface-2); }
.card:hover::before { opacity: .9; }
.card-icon { font-size: 1.9rem; margin-bottom: 16px; display: block; }
.card h3 { font-size: 1.2rem; margin-bottom: 10px; }
.card p { color: var(--text-soft); font-size: .96rem; }

/* ---------- Products ---------- */
.product {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px 26px; transition: transform .25s ease, border-color .25s ease;
}
.product:hover { transform: translateY(-6px); border-color: var(--border-hover); }
.product-tag {
  display: inline-block; font-family: var(--font-head); font-size: .72rem; font-weight: 600;
  letter-spacing: .1em; text-transform: uppercase; padding: 5px 12px; border-radius: 999px;
  background: var(--grad-soft); color: #c7d2fe; border: 1px solid var(--border); margin-bottom: 16px;
}
.product h3 { font-size: 1.35rem; margin-bottom: 10px; }
.product p { color: var(--text-soft); margin-bottom: 18px; }
.link-arrow { font-family: var(--font-head); font-weight: 500; color: var(--brand-3); font-size: .95rem; transition: gap .2s; }
.link-arrow:hover { text-decoration: underline; }

/* ---------- About ---------- */
.about-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
.about-grid .section-title { text-align: left; }
.check-list { list-style: none; margin: 26px 0 30px; display: grid; gap: 12px; }
.check-list li { position: relative; padding-left: 32px; color: var(--text-soft); }
.check-list li::before {
  content: '✓'; position: absolute; left: 0; top: 0; width: 22px; height: 22px;
  display: grid; place-items: center; border-radius: 6px; font-size: .8rem; color: #fff;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
}
.about-values { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.value { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px 22px; transition: transform .25s, border-color .25s; }
.value:hover { transform: translateY(-4px); border-color: var(--border-hover); }
.value h4 { font-size: 1.1rem; margin-bottom: 8px; color: var(--brand-3); }
.value p { font-size: .92rem; color: var(--text-soft); }

/* ---------- Process ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.step { position: relative; padding: 30px 24px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
.step-num { font-family: var(--font-head); font-size: 2rem; font-weight: 700; background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; display: block; margin-bottom: 12px; }
.step h3 { font-size: 1.2rem; margin-bottom: 8px; }
.step p { color: var(--text-soft); font-size: .94rem; }

/* ---------- FAQ ---------- */
.faq { display: grid; gap: 14px; }
.faq-item { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 4px 24px; transition: border-color .25s; }
.faq-item[open] { border-color: var(--border-hover); }
.faq-item summary {
  cursor: pointer; list-style: none; padding: 20px 0; font-family: var(--font-head);
  font-weight: 500; font-size: 1.08rem; display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; font-size: 1.5rem; color: var(--brand-3); transition: transform .25s; line-height: 1; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { padding: 0 0 22px; color: var(--text-soft); }
.faq-item a { color: var(--brand-3); text-decoration: underline; }

/* ---------- CTA / Contact ---------- */
.cta-panel {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px;
  background: linear-gradient(135deg, var(--surface-2), var(--surface));
  border: 1px solid var(--border-hover); border-radius: var(--radius-lg);
  padding: 52px; position: relative; overflow: hidden; box-shadow: var(--shadow);
}
.cta-panel::before {
  content:''; position: absolute; top: -120px; right: -80px; width: 380px; height: 380px;
  background: radial-gradient(closest-side, rgba(99,102,241,.4), transparent 70%); filter: blur(10px); pointer-events: none;
}
.cta-copy { position: relative; }
.cta-copy .section-title { text-align: left; font-size: 2rem; }
.contact-list { list-style: none; margin-top: 26px; display: grid; gap: 12px; color: var(--text-soft); }
.contact-list a { color: var(--brand-3); }

.contact-form { position: relative; display: grid; gap: 16px; }
.field { display: grid; gap: 7px; }
.field label { font-size: .85rem; color: var(--text-soft); font-family: var(--font-head); }
.field input, .field textarea {
  width: 100%; background: rgba(0,0,0,.25); border: 1px solid var(--border); border-radius: 12px;
  padding: 13px 15px; color: var(--text); font-family: var(--font-body); font-size: .96rem; transition: border-color .2s, box-shadow .2s; resize: vertical;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px rgba(99,102,241,.25); }
.field input::placeholder, .field textarea::placeholder { color: var(--text-mute); }
.form-note { font-size: .9rem; min-height: 1.2em; }
.form-note.ok { color: #34d399; }
.form-note.err { color: #f87171; }

/* ---------- Footer ---------- */
.site-footer { background: var(--bg-alt); border-top: 1px solid var(--border); padding: 60px 0 30px; }
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
.footer-brand p { color: var(--text-mute); font-size: .92rem; margin-top: 16px; max-width: 300px; }
.footer-col h4 { font-size: .95rem; margin-bottom: 16px; color: var(--text); }
.footer-col a { display: block; color: var(--text-mute); font-size: .92rem; padding: 5px 0; transition: color .2s; }
.footer-col a:hover { color: var(--text); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; margin-top: 44px; padding-top: 24px; border-top: 1px solid var(--border); color: var(--text-mute); font-size: .85rem; flex-wrap: wrap; gap: 8px; }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 940px) {
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .cta-panel { grid-template-columns: 1fr; padding: 40px 32px; }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 720px) {
  .nav, .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .mobile-nav { display: flex; }
  .hero { padding: 66px 0 60px; }
  .hero-stats { grid-template-columns: 1fr 1fr; gap: 28px 20px; }
  .section { padding: 72px 0; }
}
@media (max-width: 520px) {
  .grid-3 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .about-values { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .cta-panel { padding: 32px 22px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}