/* ============================================================
   The Quantum Ltd. — Antique-book static site
   Palette: aged paper + sepia ink, with the brand's
   violet -> cyan gradient used only as an accent.
   ============================================================ */

:root {
  /* paper & ink */
  --paper:        #efe4c9;   /* base aged page          */
  --paper-2:      #e7d9b6;   /* deeper page / panels     */
  --paper-edge:   #d8c69c;   /* frame / borders          */
  --ink:          #2f2717;   /* main text                */
  --ink-soft:     #5b4d34;   /* secondary text           */
  --ink-faint:    #8a7856;   /* captions / small caps    */
  --shadow:       rgba(60, 44, 18, 0.28);

  /* brand accent (from the logo) */
  --violet:       #6a2fb0;
  --cyan:         #22b4d6;
  --grad: linear-gradient(100deg, var(--violet), #4f6fd0 45%, var(--cyan));

  --maxw: 1120px;

  --serif-display: "Cinzel", "Trajan Pro", Georgia, "Times New Roman", serif;
  --serif-body: "EB Garamond", Garamond, Georgia, "Times New Roman", serif;
  --serif-accent: "Cormorant Garamond", Georgia, serif;
}

/* ---------- reset-ish ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--serif-body);
  font-size: clamp(1.02rem, 0.55vw + 0.9rem, 1.18rem);
  line-height: 1.72;
  color: var(--ink);
  background-color: var(--paper);
  /* subtle paper grain + soft vignette, drawn as SVG data-URIs */
  background-image:
    radial-gradient(120% 90% at 50% 0%, rgba(255,250,235,0.55), transparent 60%),
    radial-gradient(140% 120% at 50% 100%, rgba(90,66,26,0.14), transparent 55%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='260' height='260'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.05'/%3E%3C/svg%3E");
  background-attachment: fixed;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 clamp(1.1rem, 4vw, 2.6rem); }

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 100;
  background: var(--ink); color: var(--paper); padding: 0.6rem 1rem;
}
.skip-link:focus { left: 0.6rem; top: 0.6rem; }

/* ============================================================
   HEADER / NAV
   ============================================================ */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(239, 228, 201, 0.9);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--paper-edge);
  box-shadow: 0 2px 12px rgba(60,44,18,0.08);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 86px; }
.brand-logo { height: 65px; min-height: 65px; width: auto; }

.primary-nav ul { list-style: none; display: flex; gap: clamp(0.9rem, 1.8vw, 1.8rem); margin: 0; padding: 0; align-items: center; }
.primary-nav a {
  text-decoration: none; color: var(--ink-soft);
  font-family: var(--serif-display); font-size: 0.82rem; font-weight: 500;
  letter-spacing: 0.06em; text-transform: uppercase;
  padding-bottom: 3px; border-bottom: 1.5px solid transparent; transition: color .2s, border-color .2s;
}
.primary-nav a:hover { color: var(--violet); border-bottom-color: var(--cyan); }
.primary-nav .nav-cta {
  border: 1.5px solid var(--paper-edge); border-radius: 2px;
  padding: 0.5rem 0.95rem; color: var(--ink);
}
.primary-nav .nav-cta:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 26px; height: 2px; background: var(--ink); transition: transform .25s, opacity .2s; }

/* ============================================================
   HERO
   ============================================================ */
.hero { text-align: center; padding: clamp(2.2rem, 5.5vw, 4.5rem) 0 1.5rem; position: relative; }
.hero-inner { max-width: 860px; }
.eyebrow {
  font-family: var(--serif-display); text-transform: uppercase; letter-spacing: 0.22em;
  font-size: 0.72rem; color: var(--ink-faint); margin: 0 0 1.4rem;
}
.hero-title {
  font-family: var(--serif-display); font-weight: 600;
  font-size: clamp(2rem, 5.4vw, 3.7rem); line-height: 1.12; margin: 0 0 1.4rem;
  letter-spacing: 0.01em;
}
.grad {
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  color: transparent; -webkit-text-fill-color: transparent;
}
.hero-lead { font-size: 1.22rem; color: var(--ink-soft); margin: 0 auto 1.4rem; max-width: 640px; }
.hero-tagline { font-family: var(--serif-accent); font-style: italic; font-size: 1.5rem; color: var(--ink); margin: 0 0 2rem; }
.hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* buttons */
.btn {
  display: inline-block; text-decoration: none; cursor: pointer;
  font-family: var(--serif-display); text-transform: uppercase; letter-spacing: 0.08em;
  font-size: 0.8rem; font-weight: 500; padding: 0.85rem 1.7rem; border-radius: 2px;
  border: 1.5px solid transparent; transition: transform .15s, box-shadow .2s, background .2s, color .2s;
}
.btn-primary { background: var(--ink); color: var(--paper); box-shadow: 0 4px 14px var(--shadow); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 22px var(--shadow); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--paper); }

/* ornamental rules */
.rule-ornament, .fleuron { text-align: center; color: var(--paper-edge); font-size: 1.7rem; line-height: 1; }
.rule-ornament { margin-top: 1.5rem; }
.fleuron { margin: 0.5rem 0; color: var(--ink-faint); position: relative; }
.fleuron::before, .fleuron::after {
  content: ""; display: inline-block; width: min(28vw, 240px); height: 1px;
  background: linear-gradient(to right, transparent, var(--paper-edge));
  vertical-align: middle; margin: 0 1rem;
}
.fleuron::after { background: linear-gradient(to left, transparent, var(--paper-edge)); }

/* ============================================================
   SECTION SCAFFOLD
   ============================================================ */
.section { padding: clamp(2.6rem, 6vw, 4.6rem) 0; scroll-margin-top: 94px; }
.sec-num {
  font-family: var(--serif-display); font-size: 1.15rem; letter-spacing: 0.1em;
  color: var(--violet); margin: 0 0 0.3rem; text-align: center;
}
.sec-num.light { color: var(--cyan); }
.sec-title {
  font-family: var(--serif-display); font-weight: 600;
  font-size: clamp(1.5rem, 3.6vw, 2.4rem); text-align: center; margin: 0 0 0.6rem; line-height: 1.2;
}
.sec-title::after {
  content: "\275C"; display: block; color: var(--paper-edge);
  font-size: 1.1rem; margin: 0.7rem auto 0;
}
.sec-intro { text-align: center; max-width: 640px; margin: 0 auto 2.4rem; color: var(--ink-soft); font-size: 1.12rem; }

.section-tint { background: rgba(216, 198, 156, 0.28); border-block: 1px solid var(--paper-edge); }

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: clamp(1.5rem, 4vw, 3rem); margin-top: 1rem; align-items: start; }
.dropcap::first-letter {
  font-family: var(--serif-display); float: left; font-size: 3.6rem; line-height: 0.8;
  padding: 0.15em 0.12em 0 0; color: var(--violet);
}
.vm-card {
  background: var(--paper-2); border: 1px solid var(--paper-edge);
  padding: clamp(1.4rem, 3vw, 2rem); border-radius: 3px;
  box-shadow: inset 0 0 0 1px rgba(255,250,235,0.4), 0 6px 20px rgba(60,44,18,0.1);
}
.vm-card h3 { font-family: var(--serif-display); font-size: 1rem; letter-spacing: 0.06em; margin: 0 0 0.4rem; color: var(--ink); }
.vm-card p { margin: 0; color: var(--ink-soft); font-size: 1.05rem; }
.hairline { height: 1px; background: var(--paper-edge); margin: 1.3rem 0; }

/* ============================================================
   SERVICE CARDS
   ============================================================ */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: clamp(1rem, 2.5vw, 1.6rem); }
.card {
  background: rgba(255, 251, 240, 0.5); border: 1px solid var(--paper-edge);
  padding: 1.7rem 1.6rem; border-radius: 3px; position: relative;
  box-shadow: 0 4px 16px rgba(60,44,18,0.08); transition: transform .18s, box-shadow .2s;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 10px 26px rgba(60,44,18,0.14); }
.card-title {
  font-family: var(--serif-display); font-size: 1.12rem; font-weight: 600;
  margin: 0 0 1rem; padding-bottom: 0.7rem; border-bottom: 1px solid var(--paper-edge);
}
.card-feature { background: rgba(106,47,176,0.06); border-color: #c9b5d8; }
.card-feature .card-title { color: var(--violet); }
.tick { list-style: none; margin: 0; padding: 0; }
.tick li { position: relative; padding-left: 1.5rem; margin-bottom: 0.4rem; color: var(--ink-soft); }
.tick li::before {
  content: "\2767"; position: absolute; left: 0; top: 0;
  color: var(--cyan); font-size: 0.9rem;
}

/* ============================================================
   AI SECTION
   ============================================================ */
.section-ai { background: rgba(216, 198, 156, 0.22); border-block: 1px solid var(--paper-edge); }
.ai-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 0.9rem 1.6rem; max-width: 900px; margin: 0 auto; }
.ai-item {
  display: flex; align-items: center; gap: 0.7rem; padding: 0.6rem 0;
  border-bottom: 1px dotted var(--paper-edge); font-size: 1.08rem;
}
.ai-mark { color: var(--violet); font-size: 0.8rem; }

/* ============================================================
   WHY US
   ============================================================ */
.why-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: clamp(1.1rem, 2.5vw, 1.8rem); }
.why-item { padding: 1.3rem 1.4rem; border-left: 2px solid var(--cyan); background: rgba(255,251,240,0.4); }
.why-item h3 { font-family: var(--serif-display); font-size: 1rem; letter-spacing: 0.03em; margin: 0 0 0.4rem; }
.why-item p { margin: 0; color: var(--ink-soft); font-size: 1.02rem; }

/* ============================================================
   INDUSTRIES CHIPS
   ============================================================ */
.chips { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.7rem; justify-content: center; }
.chips li {
  font-family: var(--serif-display); font-size: 0.82rem; letter-spacing: 0.05em;
  border: 1px solid var(--paper-edge); background: var(--paper);
  padding: 0.5rem 1.1rem; border-radius: 40px; color: var(--ink-soft);
}

/* ============================================================
   PROCESS
   ============================================================ */
.process { list-style: none; counter-reset: none; margin: 0 auto; padding: 0; max-width: 820px; display: grid; grid-template-columns: 1fr 1fr; gap: 1rem 2rem; }
.process li { display: flex; gap: 1rem; align-items: flex-start; padding: 0.6rem 0; }
.step-n {
  flex: 0 0 auto; width: 40px; height: 40px; display: grid; place-items: center;
  border-radius: 50%; border: 1.5px solid var(--violet); color: var(--violet);
  font-family: var(--serif-display); font-weight: 600;
}
.process h3 { font-family: var(--serif-display); font-size: 1rem; margin: 0.2rem 0 0.2rem; }
.process p { margin: 0; color: var(--ink-soft); font-size: 1rem; }

/* ============================================================
   TECHNOLOGIES
   ============================================================ */
/* 8 cards: fixed column counts so rows always stay full (4+4, 2x4, 1-col) */
.tech-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.2rem; }
.tech-col { text-align: center; padding: 1.3rem 1rem; border: 1px solid var(--paper-edge); border-radius: 3px; background: rgba(255,251,240,0.4); }
.tech-col h3 { font-family: var(--serif-display); font-size: 0.92rem; letter-spacing: 0.08em; text-transform: uppercase; margin: 0 0 0.6rem; color: var(--violet); }
.tech-col p { margin: 0; color: var(--ink-soft); font-size: 1.02rem; }
@media (max-width: 1000px) { .tech-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px)  { .tech-grid { grid-template-columns: 1fr; } }

/* ============================================================
   CTA / CONTACT
   ============================================================ */
.section-cta { background: var(--ink); color: var(--paper); }
.section-cta .sec-title, .section-cta .cta-lead { color: var(--paper); }
.section-cta .sec-title::after { color: rgba(239,228,201,0.4); }
.cta-lead { text-align: center; max-width: 620px; margin: 0 auto 2.4rem; font-size: 1.15rem; color: rgba(239,228,201,0.85); }

.contact-form { max-width: 640px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; }
.field { display: flex; flex-direction: column; gap: 0.35rem; }
.field-full { grid-column: 1 / -1; }
.contact-form label { font-family: var(--serif-display); font-size: 0.74rem; letter-spacing: 0.1em; text-transform: uppercase; color: rgba(239,228,201,0.75); }
.contact-form input, .contact-form textarea {
  font-family: var(--serif-body); font-size: 1.02rem; color: var(--paper);
  background: rgba(239,228,201,0.06); border: 1px solid rgba(239,228,201,0.3);
  border-radius: 2px; padding: 0.7rem 0.85rem; resize: vertical;
}
.contact-form input:focus, .contact-form textarea:focus { outline: none; border-color: var(--cyan); background: rgba(239,228,201,0.1); }
.form-actions { display: flex; align-items: center; gap: 1.2rem; flex-wrap: wrap; }
.section-cta .btn-primary { background: var(--paper); color: var(--ink); }
.form-note { font-family: var(--serif-accent); font-style: italic; font-size: 1.05rem; color: var(--cyan); }
.contact-direct { text-align: center; margin-top: 2rem; color: rgba(239,228,201,0.8); }
.contact-direct a { color: var(--cyan); }

/* ============================================================
   FOOTER / COLOPHON
   ============================================================ */
.site-footer { background: #241d11; color: var(--paper); text-align: center; padding: 3rem 0 2rem; }
.footer-inner { display: flex; flex-direction: column; align-items: center; gap: 0.4rem; }
.footer-mark { width: 78px; height: auto; opacity: 0.95; margin-bottom: 0.4rem; }
.footer-name { font-family: var(--serif-display); letter-spacing: 0.18em; font-size: 1.05rem; margin: 0; }
.footer-tag { font-family: var(--serif-accent); font-style: italic; color: rgba(239,228,201,0.7); margin: 0 0 0.6rem; }
.footer-nav { display: flex; gap: 1.3rem; flex-wrap: wrap; justify-content: center; margin: 0.6rem 0; }
.footer-nav a { text-decoration: none; color: rgba(239,228,201,0.85); font-family: var(--serif-display); font-size: 0.76rem; letter-spacing: 0.06em; text-transform: uppercase; }
.footer-nav a:hover { color: var(--cyan); }
.footer-copy { font-size: 0.9rem; color: rgba(239,228,201,0.55); margin: 0.8rem 0 0; }

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 860px) {
  .about-grid { grid-template-columns: 1fr; }
  .process { grid-template-columns: 1fr; }
  .contact-form { grid-template-columns: 1fr; }

  .nav-toggle { display: flex; }
  .primary-nav {
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--paper); border-bottom: 1px solid var(--paper-edge);
    max-height: 0; overflow: hidden; transition: max-height .3s ease;
    box-shadow: 0 12px 24px rgba(60,44,18,0.15);
  }
  .primary-nav.open { max-height: 460px; }
  .primary-nav ul { flex-direction: column; align-items: stretch; gap: 0; padding: 0.5rem 0; }
  .primary-nav li { border-bottom: 1px solid var(--paper-edge); }
  .primary-nav li:last-child { border-bottom: 0; }
  .primary-nav a { display: block; padding: 0.9rem clamp(1.1rem, 4vw, 2.6rem); border-bottom: 0; }
  .primary-nav .nav-cta { border: 0; border-radius: 0; }
}

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