/* Tatem Web World — global stylesheet
   Design system: void-black canvas, single violet accent, amber emphasis,
   scale-driven type hierarchy (weight stays constant, size does the work). */

:root {
  --color-void: #000000;
  --color-bone-white: #ffffff;
  --color-ash-gray: #9a9a9a;
  --color-silver-mist: #bdbdbd;
  --color-electric-iris: #8052ff;
  --color-electric-iris-dim: #6a3ff0;
  --color-saffron-spark: #ffb829;
  --color-deep-verdant: #15846e;

  --font-sans: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --text-caption: 12px;
  --text-nav-label: 14px;
  --text-body: 18px;
  --text-heading-2xs: 24px;
  --text-heading-xs: 27px;
  --text-subheading: 36px;
  --text-heading-sm: 42px;
  --text-heading: 48px;
  --text-heading-lg: 78px;
  --text-display: 113px;

  --spacing-6: 6px;
  --spacing-12: 12px;
  --spacing-18: 18px;
  --spacing-24: 24px;
  --spacing-30: 30px;
  --spacing-36: 36px;
  --spacing-60: 60px;
  --spacing-96: 96px;
  --spacing-120: 120px;

  --radius-buttons: 24px;
  --radius-cards: 24px;
  --page-max-width: 1280px;

  color-scheme: dark;
}

* { box-sizing: border-box; }

html {
  background: var(--color-void);
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  background: var(--color-void);
  color: var(--color-bone-white);
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: var(--text-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg, canvas { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }

h1, h2, h3, h4, p, ul, ol, figure { margin: 0; }

.container {
  max-width: var(--page-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-24);
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-electric-iris);
  color: #fff;
  padding: 12px 20px;
  z-index: 1000;
  border-radius: 0 0 12px 0;
}
.skip-link:focus { left: 0; }

/* ---------- Typography helpers ---------- */

.eyebrow {
  display: inline-block;
  font-size: var(--text-nav-label);
  font-weight: 600;
  letter-spacing: 0.35px;
  text-transform: uppercase;
  color: var(--color-saffron-spark);
  margin-bottom: var(--spacing-18);
}

h1 {
  font-weight: 400;
  font-size: clamp(42px, 7vw, var(--text-heading-lg));
  line-height: 1.1;
  letter-spacing: -0.03em;
}

h2 {
  font-weight: 400;
  font-size: clamp(30px, 4.5vw, var(--text-heading));
  line-height: 1.1;
  letter-spacing: -0.03em;
}

h3 {
  font-weight: 400;
  font-size: var(--text-heading-sm);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h4 {
  font-weight: 400;
  font-size: var(--text-heading-xs);
  line-height: 1.2;
}

.lede {
  font-weight: 200;
  font-size: var(--text-heading-2xs);
  line-height: 1.4;
  color: var(--color-silver-mist);
  max-width: 640px;
}

p.body-copy, .body-copy {
  font-weight: 200;
  font-size: var(--text-body);
  color: var(--color-silver-mist);
  max-width: 560px;
}

.text-ash { color: var(--color-ash-gray); }
.text-white { color: var(--color-bone-white); }
.text-accent { color: var(--color-saffron-spark); }

/* ---------- Buttons & links ---------- */

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-electric-iris);
  color: #fff;
  font-size: var(--text-nav-label);
  font-weight: 600;
  letter-spacing: 0.025em;
  text-transform: uppercase;
  padding: 14.4px 24px;
  border-radius: var(--radius-buttons);
  border: none;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.2s ease;
}
.btn-primary:hover, .btn-primary:focus-visible { background: var(--color-electric-iris-dim); transform: translateY(-1px); }

.btn-ghost {
  display: inline-block;
  color: var(--color-bone-white);
  font-size: var(--text-nav-label);
  font-weight: 400;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}
.btn-ghost:hover, .btn-ghost:focus-visible { border-color: var(--color-ash-gray); }

.link-accent { color: var(--color-saffron-spark); }
.link-accent:hover { color: var(--color-bone-white); }

/* ---------- Navigation ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(0,0,0,0.72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--spacing-18);
  padding-bottom: var(--spacing-18);
}

.logo-lockup {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 600;
  color: var(--color-bone-white);
  letter-spacing: -0.01em;
}

.logo-mark {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-30);
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-links a {
  font-size: var(--text-nav-label);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.025em;
  color: var(--color-ash-gray);
  transition: color 0.2s ease;
}
.nav-links a:hover, .nav-links a:focus-visible, .nav-links a[aria-current="page"] { color: var(--color-bone-white); }

.nav-cta { display: none; }
@media (min-width: 860px) { .nav-cta { display: inline-flex; } }

.nav-toggle {
  display: inline-flex;
  background: none;
  border: none;
  color: var(--color-bone-white);
  cursor: pointer;
  padding: 8px;
}
@media (min-width: 860px) { .nav-toggle { display: none; } }

@media (max-width: 859px) {
  .nav-links {
    position: fixed;
    inset: 64px 0 0 0;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: var(--spacing-24);
    padding: var(--spacing-36) var(--spacing-24);
    background: var(--color-void);
    transform: translateX(100%);
    transition: transform 0.25s ease;
    overflow-y: auto;
  }
  .nav-links.is-open { transform: translateX(0); }
  .nav-links a { font-size: 24px; }
  .nav-cta.mobile { display: inline-flex; margin-top: var(--spacing-12); }
}

/* ---------- Hero ---------- */

.hero {
  padding: var(--spacing-96) 0 var(--spacing-60);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-60);
  align-items: center;
  position: relative;
  z-index: 2;
}
@media (min-width: 960px) {
  .hero-grid { grid-template-columns: 1.1fr 0.9fr; }
}

.hero-copy .btn-primary { margin-top: var(--spacing-30); }

.hero-visual {
  position: relative;
  min-height: 320px;
}
@media (min-width: 960px) { .hero-visual { min-height: 420px; } }

#constellation {
  width: 100%;
  height: 100%;
  min-height: 320px;
}

.ambient-field {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.5;
}

/* ---------- Sections ---------- */

section { position: relative; z-index: 1; }
section[id] { scroll-margin-top: 90px; }

.jump-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-12);
  margin-top: var(--spacing-30);
}
.jump-nav a {
  padding: 10px 20px;
  border-radius: 9999px;
  border: 1px solid rgba(154,154,154,0.3);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.35px;
  color: var(--color-bone-white);
  transition: border-color 0.2s ease, color 0.2s ease;
}
.jump-nav a:hover, .jump-nav a:focus-visible { border-color: var(--color-electric-iris); color: var(--color-electric-iris); }

.section {
  padding: var(--spacing-96) 0;
}

.section-tight { padding: var(--spacing-60) 0; }

.section-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-60);
  align-items: start;
}
@media (min-width: 900px) {
  .section-grid { grid-template-columns: 1fr 1fr; }
  .section-grid.reverse { direction: rtl; }
  .section-grid.reverse > * { direction: ltr; }
}

.stack { display: flex; flex-direction: column; gap: var(--spacing-18); }

.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(154,154,154,0.25), transparent);
  border: none;
  margin: 0;
}

/* ---------- Feature / service cards (border/shadow-free, per brand rule) ---------- */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--spacing-60) var(--spacing-36);
  margin-top: var(--spacing-60);
}

.feature-item .icon-triangle { margin-bottom: var(--spacing-18); }

.feature-item h3, .feature-item h4 {
  margin-bottom: var(--spacing-12);
}

.feature-item p { font-size: 16px; }

/* ---------- Stat row ---------- */

.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--spacing-36);
  margin-top: var(--spacing-60);
}

.stat-number {
  font-size: var(--text-heading);
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--color-bone-white);
}
.stat-number .accent { color: var(--color-saffron-spark); }

.stat-label {
  font-size: var(--text-caption);
  text-transform: uppercase;
  letter-spacing: 0.35px;
  color: var(--color-ash-gray);
  margin-top: var(--spacing-6);
}

/* ---------- Credential badges ---------- */

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-12);
  margin-top: var(--spacing-24);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.35px;
  color: var(--color-bone-white);
  padding: 10px 16px;
  border-radius: 9999px;
  background: rgba(128, 82, 255, 0.12);
  border: 1px solid rgba(128, 82, 255, 0.35);
}
.badge .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--color-saffron-spark); flex-shrink: 0; }

/* ---------- Pricing / process list ---------- */

.process-list { counter-reset: step; margin-top: var(--spacing-60); }

.process-item {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: var(--spacing-24);
  padding: var(--spacing-30) 0;
}
.process-item + .process-item { border-top: 1px solid rgba(154,154,154,0.15); }

.process-num {
  font-size: var(--text-subheading);
  font-weight: 400;
  color: var(--color-electric-iris);
}

/* ---------- FAQ ---------- */

.faq-item { padding: var(--spacing-24) 0; border-top: 1px solid rgba(154,154,154,0.15); }
.faq-item:last-child { border-bottom: 1px solid rgba(154,154,154,0.15); }
.faq-item summary {
  cursor: pointer;
  font-size: var(--text-heading-xs);
  font-weight: 400;
  color: var(--color-bone-white);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-18);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 28px;
  color: var(--color-electric-iris);
  flex-shrink: 0;
  transition: transform 0.2s ease;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { margin-top: var(--spacing-18); }

/* ---------- Team / person card ---------- */

.person-card { max-width: 420px; }
.person-role {
  font-size: 12px;
  text-transform: uppercase;
  color: var(--color-electric-iris);
  letter-spacing: 0.35px;
  margin-bottom: var(--spacing-12);
}
.person-name { font-size: var(--text-heading-xs); font-weight: 400; }

/* ---------- Forms ---------- */

.form-field { display: flex; flex-direction: column; gap: 8px; margin-bottom: var(--spacing-24); }
.form-field label { font-size: 13px; text-transform: uppercase; letter-spacing: 0.35px; color: var(--color-ash-gray); }
.form-field input, .form-field textarea, .form-field select {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(154,154,154,0.3);
  border-radius: 12px;
  padding: 14px 16px;
  color: var(--color-bone-white);
  font-family: var(--font-sans);
  font-size: 16px;
}
.form-field input:focus, .form-field textarea:focus, .form-field select:focus {
  outline: none;
  border-color: var(--color-electric-iris);
}
.form-field textarea { min-height: 140px; resize: vertical; }
.form-note { font-size: 13px; color: var(--color-ash-gray); margin-top: var(--spacing-18); }

/* ---------- Contact info list ---------- */

.info-list { list-style: none; padding: 0; margin: var(--spacing-24) 0 0; display: flex; flex-direction: column; gap: var(--spacing-18); }
.info-list dt { font-size: 12px; text-transform: uppercase; letter-spacing: 0.35px; color: var(--color-ash-gray); }
.info-list dd { margin: 4px 0 0; font-size: 20px; }

/* ---------- Footer ---------- */

.site-footer {
  padding: var(--spacing-96) 0 var(--spacing-60);
  border-top: 1px solid rgba(154,154,154,0.15);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-60);
}
@media (min-width: 760px) {
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
}

.footer-col h4 { font-size: 15px; text-transform: uppercase; letter-spacing: 0.35px; color: var(--color-ash-gray); margin-bottom: var(--spacing-18); font-weight: 600; }
.footer-col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: var(--spacing-12); }
.footer-col a:hover { color: var(--color-saffron-spark); }

.footer-bottom {
  margin-top: var(--spacing-60);
  padding-top: var(--spacing-30);
  border-top: 1px solid rgba(154,154,154,0.15);
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-12);
  justify-content: space-between;
  font-size: 13px;
  color: var(--color-ash-gray);
}

/* ---------- Breadcrumbs ---------- */

.breadcrumbs { padding: var(--spacing-24) 0 0; font-size: 13px; color: var(--color-ash-gray); }
.breadcrumbs a:hover { color: var(--color-saffron-spark); }
.breadcrumbs span[aria-hidden] { margin: 0 8px; }

/* ---------- Utility ---------- */

.mt-0 { margin-top: 0 !important; }
.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }