/* ==========================================================================
   Intellect Service Consulting — Stylesheet
   Self-contained, no external dependencies.
   ========================================================================== */

:root {
  /* Brand palette */
  --navy-900: #0a1124;
  --navy-800: #0f1a35;
  --navy-700: #15234a;
  --navy-600: #1d2f63;
  --ink: #0b1020;
  --slate-100: #f4f7fc;
  --slate-200: #e6edf7;
  --slate-300: #cdd9ec;
  --slate-400: #9fb0cc;
  --slate-500: #6b7c9c;
  --slate-600: #475571;
  --white: #ffffff;

  --accent: #38bdf8;       /* sky */
  --accent-2: #6366f1;     /* indigo */
  --accent-3: #22d3ee;     /* cyan */
  --gold: #f5b945;

  --grad-hero: radial-gradient(1200px 600px at 80% -10%, rgba(99,102,241,.45), transparent 60%),
               radial-gradient(900px 500px at 0% 10%, rgba(56,189,248,.35), transparent 55%),
               linear-gradient(160deg, #0a1124 0%, #0f1a35 55%, #0a1124 100%);
  --grad-accent: linear-gradient(120deg, var(--accent) 0%, var(--accent-2) 100%);
  --grad-card: linear-gradient(160deg, rgba(255,255,255,.06), rgba(255,255,255,.02));

  --shadow-sm: 0 2px 10px rgba(6, 12, 30, .15);
  --shadow-md: 0 18px 40px -18px rgba(8, 16, 40, .55);
  --shadow-lg: 0 40px 80px -30px rgba(8, 16, 40, .65);

  --radius: 16px;
  --radius-sm: 10px;
  --maxw: 1180px;

  --font: "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, Helvetica, Arial, sans-serif;

  --ease: cubic-bezier(.16, 1, .3, 1);
}

/* ----- Reset ----- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--slate-200);
  background: var(--navy-900);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { margin: 0 0 .5em; line-height: 1.15; color: var(--white); font-weight: 700; letter-spacing: -.02em; }
p { margin: 0 0 1rem; }

/* ----- Layout helpers ----- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; position: relative; }
.section--tight { padding: 64px 0; }
.section--light { background: var(--slate-100); color: var(--navy-800); }
.section--light h1, .section--light h2, .section--light h3 { color: var(--navy-900); }
.section--alt { background: linear-gradient(180deg, var(--navy-900), var(--navy-800)); }

.eyebrow {
  display: inline-flex; align-items: center; gap: .5rem;
  font-size: .78rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}
.eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--grad-accent); border-radius: 2px; }
.section--light .eyebrow { color: var(--accent-2); }

.section-head { max-width: 720px; margin-bottom: 56px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head h2 { font-size: clamp(1.9rem, 3.4vw, 2.7rem); }
.section-head p { color: var(--slate-400); font-size: 1.08rem; }
.section--light .section-head p { color: var(--slate-600); }

.lead { font-size: 1.15rem; color: var(--slate-300); }
.section--light .lead { color: var(--slate-600); }

/* ----- Buttons ----- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .55rem;
  padding: .85rem 1.5rem; border-radius: 999px; font-weight: 600; font-size: .98rem;
  border: 1px solid transparent; cursor: pointer; transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--grad-accent); color: #04122b; box-shadow: 0 12px 30px -10px rgba(56,189,248,.6); }
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 18px 40px -12px rgba(99,102,241,.7); }
.btn--ghost { background: rgba(255,255,255,.04); color: var(--white); border-color: rgba(255,255,255,.18); }
.btn--ghost:hover { background: rgba(255,255,255,.1); transform: translateY(-2px); }
.btn--dark { background: var(--navy-800); color: var(--white); }
.btn--dark:hover { background: var(--navy-700); transform: translateY(-2px); }
.btn svg { width: 18px; height: 18px; }

/* ----- Header / Nav ----- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(10, 17, 36, .72);
  border-bottom: 1px solid rgba(255,255,255,.06);
  transition: background .3s, box-shadow .3s;
}
.site-header.scrolled { background: rgba(10, 17, 36, .94); box-shadow: var(--shadow-sm); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 74px; }
.brand { display: flex; align-items: center; gap: .7rem; font-weight: 700; color: var(--white); letter-spacing: -.01em; }
.brand .mark { width: 38px; height: 38px; flex: none; }
.brand small { display: block; font-size: .7rem; font-weight: 500; letter-spacing: .06em; color: var(--slate-400); text-transform: uppercase; }
.brand b { font-size: 1.05rem; }

.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a {
  padding: .55rem .9rem; border-radius: 999px; font-size: .95rem; font-weight: 500; color: var(--slate-300);
  transition: color .2s, background .2s;
}
.nav-links a:hover { color: var(--white); background: rgba(255,255,255,.06); }
.nav-links a.active { color: var(--white); background: rgba(99,102,241,.18); }
.nav-cta { margin-left: 10px; }

.nav-toggle {
  display: none; background: none; border: 1px solid rgba(255,255,255,.18); border-radius: 10px;
  width: 44px; height: 42px; cursor: pointer; padding: 0; align-items: center; justify-content: center;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: ""; display: block; width: 20px; height: 2px; background: var(--white); border-radius: 2px;
  transition: transform .3s, opacity .2s; position: relative;
}
.nav-toggle span::before { position: absolute; top: -6px; }
.nav-toggle span::after { position: absolute; top: 6px; }
.nav-toggle.open span { background: transparent; }
.nav-toggle.open span::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle.open span::after { transform: translateY(-6px) rotate(-45deg); }

/* ----- Hero ----- */
.hero { position: relative; background: var(--grad-hero); overflow: hidden; padding: 120px 0 110px; }
.hero::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(900px 500px at 70% 0%, #000 30%, transparent 75%);
          mask-image: radial-gradient(900px 500px at 70% 0%, #000 30%, transparent 75%);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 2; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.hero h1 { font-size: clamp(2.3rem, 5vw, 3.7rem); letter-spacing: -.03em; }
.hero h1 .grad { background: var(--grad-accent); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p { font-size: 1.18rem; color: var(--slate-300); max-width: 560px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 34px; }
.chip {
  display: inline-flex; align-items: center; gap: .5rem; font-size: .82rem; font-weight: 600;
  padding: .5rem .9rem; border-radius: 999px; color: var(--slate-200);
  background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.1);
}
.chip .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent-3); box-shadow: 0 0 10px var(--accent-3); }

/* Hero visual card */
.hero-visual { position: relative; }
.hero-card {
  background: var(--grad-card); border: 1px solid rgba(255,255,255,.12); border-radius: 22px;
  padding: 22px; box-shadow: var(--shadow-lg); backdrop-filter: blur(6px);
}
.float { animation: floaty 7s ease-in-out infinite; }
@keyframes floaty { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }

/* ----- Marquee / trust strip ----- */
.trust { border-top: 1px solid rgba(255,255,255,.07); border-bottom: 1px solid rgba(255,255,255,.07); background: var(--navy-800); }
.trust-inner { display: flex; align-items: center; gap: 40px; flex-wrap: wrap; justify-content: center; padding: 26px 0; }
.trust-inner span { color: var(--slate-400); font-weight: 600; letter-spacing: .04em; font-size: .9rem; opacity: .85; }

/* ----- Grid cards ----- */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--grad-card); border: 1px solid rgba(255,255,255,.1); border-radius: var(--radius);
  padding: 28px; transition: transform .35s var(--ease), border-color .35s, box-shadow .35s;
  position: relative; overflow: hidden;
}
.card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px; background: var(--grad-accent);
  transform: scaleX(0); transform-origin: left; transition: transform .4s var(--ease);
}
.card:hover { transform: translateY(-6px); border-color: rgba(56,189,248,.4); box-shadow: var(--shadow-md); }
.card:hover::before { transform: scaleX(1); }
.card h3 { font-size: 1.25rem; }
.card p { color: var(--slate-400); margin-bottom: 0; }
.card .icon {
  width: 54px; height: 54px; border-radius: 14px; display: flex; align-items: center; justify-content: center;
  background: rgba(56,189,248,.12); border: 1px solid rgba(56,189,248,.25); margin-bottom: 18px;
}
.card .icon svg { width: 28px; height: 28px; stroke: var(--accent); }

/* light variant cards */
.section--light .card { background: var(--white); border-color: var(--slate-200); box-shadow: var(--shadow-sm); }
.section--light .card h3 { color: var(--navy-900); }
.section--light .card p { color: var(--slate-600); }
.section--light .card:hover { box-shadow: var(--shadow-md); border-color: rgba(99,102,241,.35); }

/* numbered feature list */
.feature-list { display: grid; gap: 18px; }
.feature-item { display: flex; gap: 16px; align-items: flex-start; }
.feature-item .num {
  flex: none; width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center;
  background: var(--grad-accent); color: #04122b; font-weight: 800; font-size: 1rem;
}
.feature-item h4 { margin-bottom: .25rem; }
.feature-item p { color: var(--slate-400); margin: 0; }
.section--light .feature-item p { color: var(--slate-600); }

/* ----- Stats ----- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat { text-align: center; padding: 28px 18px; background: var(--grad-card); border: 1px solid rgba(255,255,255,.1); border-radius: var(--radius); }
.stat .n { font-size: clamp(2rem, 4vw, 2.8rem); font-weight: 800; letter-spacing: -.03em;
  background: var(--grad-accent); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat .l { color: var(--slate-400); font-size: .92rem; font-weight: 500; }

/* ----- Pills / tags ----- */
.pills { display: flex; flex-wrap: wrap; gap: 10px; }
.pill {
  padding: .5rem 1rem; border-radius: 999px; font-size: .9rem; font-weight: 600;
  background: rgba(99,102,241,.12); color: var(--slate-200); border: 1px solid rgba(99,102,241,.25);
}
.section--light .pill { background: rgba(99,102,241,.08); color: var(--navy-700); border-color: rgba(99,102,241,.2); }

/* ----- Split / about ----- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.media-frame {
  border-radius: 20px; overflow: hidden; border: 1px solid rgba(255,255,255,.1);
  background: var(--grad-card); box-shadow: var(--shadow-md); padding: 18px;
}

/* ----- Page hero (interior) ----- */
.page-hero { background: var(--grad-hero); padding: 92px 0 76px; position: relative; overflow: hidden; }
.page-hero::after {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(800px 360px at 80% -10%, #000 30%, transparent 75%);
          mask-image: radial-gradient(800px 360px at 80% -10%, #000 30%, transparent 75%);
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero h1 { font-size: clamp(2.1rem, 4.4vw, 3.1rem); }
.page-hero p { font-size: 1.12rem; color: var(--slate-300); max-width: 640px; }
.breadcrumb { display: flex; gap: .5rem; align-items: center; color: var(--slate-500); font-size: .85rem; margin-bottom: 1rem; }
.breadcrumb a:hover { color: var(--accent); }

/* ----- Industries grid ----- */
.ind-card {
  display: flex; gap: 16px; align-items: center; padding: 22px;
  background: var(--grad-card); border: 1px solid rgba(255,255,255,.1); border-radius: var(--radius);
  transition: transform .3s var(--ease), border-color .3s, box-shadow .3s;
}
.ind-card:hover { transform: translateY(-5px); border-color: rgba(34,211,238,.4); box-shadow: var(--shadow-md); }
.ind-card .ic { flex: none; width: 50px; height: 50px; border-radius: 12px; display: grid; place-items: center;
  background: rgba(34,211,238,.12); border: 1px solid rgba(34,211,238,.25); }
.ind-card .ic svg { width: 26px; height: 26px; stroke: var(--accent-3); }
.ind-card h3 { font-size: 1.1rem; margin: 0 0 .2rem; }
.ind-card p { margin: 0; color: var(--slate-400); font-size: .92rem; }

/* ----- Tech stack ----- */
.tech-col h3 { display: flex; align-items: center; gap: .6rem; font-size: 1.2rem; }
.tech-col h3 .b { width: 10px; height: 10px; border-radius: 3px; background: var(--grad-accent); }
.tech-list li { padding: .65rem 0; border-bottom: 1px dashed rgba(255,255,255,.1); color: var(--slate-300); display: flex; align-items: center; gap: .6rem; }
.tech-list li::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); flex: none; }
.section--light .tech-list li { border-color: var(--slate-200); color: var(--slate-600); }

/* ----- Process / timeline ----- */
.timeline { position: relative; display: grid; gap: 8px; }
.t-step { display: grid; grid-template-columns: 56px 1fr; gap: 18px; padding: 18px 0; position: relative; }
.t-step:not(:last-child)::before { content: ""; position: absolute; left: 27px; top: 56px; bottom: -18px; width: 2px; background: linear-gradient(var(--accent-2), transparent); }
.t-step .dot { width: 56px; height: 56px; border-radius: 16px; display: grid; place-items: center;
  background: var(--grad-card); border: 1px solid rgba(255,255,255,.14); font-weight: 800; color: var(--accent); }
.section--light .t-step .dot { background: var(--white); border-color: var(--slate-200); }
.t-step h4 { margin-bottom: .3rem; }
.t-step p { color: var(--slate-400); margin: 0; }
.section--light .t-step p { color: var(--slate-600); }

/* ----- CTA band ----- */
.cta-band { background: var(--grad-accent); color: #04122b; border-radius: 24px; padding: 56px; text-align: center; box-shadow: var(--shadow-lg); }
.cta-band h2 { color: #04122b; font-size: clamp(1.7rem, 3vw, 2.4rem); }
.cta-band p { color: #0a2540; opacity: .85; max-width: 560px; margin: 0 auto 1.6rem; font-size: 1.08rem; }

/* ----- Contact ----- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.contact-card { background: var(--grad-card); border: 1px solid rgba(255,255,255,.1); border-radius: var(--radius); padding: 26px; }
.contact-row { display: flex; gap: 16px; align-items: flex-start; padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,.07); }
.contact-row:last-child { border-bottom: 0; }
.contact-row .ic { flex: none; width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  background: rgba(56,189,248,.12); border: 1px solid rgba(56,189,248,.25); }
.contact-row .ic svg { width: 22px; height: 22px; stroke: var(--accent); }
.contact-row b { color: var(--white); display: block; }
.contact-row span, .contact-row a { color: var(--slate-400); font-size: .95rem; }
.contact-row a:hover { color: var(--accent); }

.form-field { margin-bottom: 16px; }
.form-field label { display: block; font-size: .88rem; font-weight: 600; color: var(--slate-300); margin-bottom: .4rem; }
.form-field input, .form-field select, .form-field textarea {
  width: 100%; padding: .8rem 1rem; border-radius: 12px; border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.04); color: var(--white); font-family: inherit; font-size: .98rem; transition: border-color .2s, box-shadow .2s;
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(56,189,248,.18);
}
.form-field textarea { resize: vertical; min-height: 130px; }
.form-note { font-size: .82rem; color: var(--slate-500); margin-top: 8px; }

.map-frame { border-radius: var(--radius); overflow: hidden; border: 1px solid rgba(255,255,255,.1); box-shadow: var(--shadow-md); }
.map-frame iframe { width: 100%; height: 320px; border: 0; display: block; filter: grayscale(.2) contrast(1.05); }

/* ----- Footer ----- */
.site-footer { background: var(--ink); border-top: 1px solid rgba(255,255,255,.07); padding: 64px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px; }
.footer-grid h4 { font-size: .8rem; text-transform: uppercase; letter-spacing: .12em; color: var(--slate-400); margin-bottom: 1.1rem; }
.footer-grid a { color: var(--slate-400); display: block; padding: .3rem 0; transition: color .2s; }
.footer-grid a:hover { color: var(--accent); }
.footer-about p { color: var(--slate-500); font-size: .92rem; max-width: 320px; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
  margin-top: 48px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.07); color: var(--slate-500); font-size: .86rem; }
.footer-bottom .socials { display: flex; gap: 10px; }
.footer-bottom .socials a { width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center;
  background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.1); }
.footer-bottom .socials a:hover { background: rgba(56,189,248,.15); border-color: rgba(56,189,248,.4); }
.footer-bottom .socials svg { width: 18px; height: 18px; stroke: var(--slate-300); }

/* ----- Reveal on scroll ----- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; }
.reveal.d2 { transition-delay: .16s; }
.reveal.d3 { transition-delay: .24s; }
.reveal.d4 { transition-delay: .32s; }

/* ----- Utilities ----- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; } .mb-0 { margin-bottom: 0; }
.mt-2 { margin-top: 1.5rem; }
.muted { color: var(--slate-400); }
.divider { height: 1px; background: rgba(255,255,255,.08); margin: 0; border: 0; }

/* ----- Responsive ----- */
@media (max-width: 980px) {
  .hero-grid, .split, .contact-grid { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-visual { order: -1; }
}
@media (max-width: 760px) {
  .section { padding: 68px 0; }
  .nav-links {
    position: fixed; inset: 74px 0 auto 0; flex-direction: column; align-items: stretch; gap: 4px;
    background: rgba(10,17,36,.98); border-bottom: 1px solid rgba(255,255,255,.08); padding: 16px 24px 24px;
    transform: translateY(-130%); transition: transform .35s var(--ease); box-shadow: var(--shadow-md);
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links a { padding: .8rem 1rem; }
  .nav-cta { margin: 6px 0 0; }
  .nav-toggle { display: inline-flex; }
  .cta-band { padding: 40px 24px; }
}
@media (max-width: 520px) {
  .grid-2, .grid-3, .grid-4, .stats, .footer-grid { grid-template-columns: 1fr; }
  .hero { padding: 80px 0 70px; }
}

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