/* ============================================ */
/*  VIAN SOFTWARE SOLUTIONS — Design System      */
/*  Minimal · Premium · Professional             */
/* ============================================ */

:root {
  color-scheme: light;
  --font: Verdana, Geneva, sans-serif;
  --mono: 'Courier New', monospace;

  /* Light theme */
  --bg: #FFFFFF;
  --bg-secondary: #FAFAFA;
  --surface: #FFFFFF;
  --surface-hover: #F5F5F5;
  --border: #E5E7EB;
  --border-light: #F3F4F6;

  --text: #111827;
  --text-secondary: #6B7280;
  --text-tertiary: #9CA3AF;
  --text-inverse: #FFFFFF;

  --accent: #2563EB;
  --accent-hover: #1D4ED8;
  --accent-light: #EFF2FF;

  --success: #16A34A;
  --error: #DC2626;

  --radius: 6px;
  --radius-lg: 10px;

  --shadow: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.08);

  --nav-height: 64px;
  --container: min(1200px, calc(100% - 48px));
  --container-narrow: min(800px, calc(100% - 48px));
  --space: 8px;
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0F172A;
  --bg-secondary: #111827;
  --surface: #1E293B;
  --surface-hover: #263548;
  --border: #334155;
  --border-light: #1E293B;

  --text: #FFFFFF;
  --text-secondary: #CBD5E1;
  --text-tertiary: #64748B;
  --text-inverse: #0F172A;

  --accent: #3B82F6;
  --accent-hover: #60A5FA;
  --accent-light: rgba(59,130,246,0.1);

  --shadow: 0 1px 3px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.3);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.4);
}

/* ======= RESET ======= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
ul, ol { list-style: none; }
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ======= CONTAINER ======= */
.container { width: var(--container); margin: 0 auto; }
.container-narrow { width: var(--container-narrow); margin: 0 auto; }

/* ======= NAVIGATION ======= */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  height: var(--nav-height);
}
.nav {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: var(--container);
  margin: 0 auto;
  gap: 24px;
}

/* Logo */
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 16px;
  color: var(--text);
  flex-shrink: 0;
}

/* Nav links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
}
.nav-links a {
  padding: 8px 14px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color .15s, background .15s;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
  background: var(--surface-hover);
}

/* Nav actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.icon-btn {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 16px;
  transition: background .15s;
}
.icon-btn:hover { background: var(--surface-hover); }
.menu-toggle { display: none; }

/* ======= BUTTONS ======= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-secondary:hover { border-color: var(--text-secondary); color: var(--text); }
.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: transparent;
}
.btn-ghost:hover { color: var(--text); }
.btn-lg { padding: 12px 28px; font-size: 14px; }
.btn-sm { padding: 6px 14px; font-size: 12px; }

/* ======= SECTION ======= */
.section { padding: 96px 0; }
.section-soft { background: var(--bg-secondary); }
.section-head { max-width: 640px; margin-bottom: 48px; }
.section-head.center { margin: 0 auto 48px; text-align: center; }
.section-head p { margin-top: 12px; color: var(--text-secondary); font-size: 15px; }

/* ======= TYPOGRAPHY ======= */
h1, h2, h3, h4 { line-height: 1.2; font-weight: 700; color: var(--text); }
h1 { font-size: clamp(36px, 5vw, 56px); letter-spacing: -0.02em; }
h2 { font-size: clamp(28px, 3.5vw, 40px); letter-spacing: -0.01em; }
h3 { font-size: 18px; }
h4 { font-size: 15px; }
.eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
  margin-bottom: 12px;
}
.lead {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-top: 16px;
  max-width: 600px;
}
.muted { color: var(--text-secondary); }
.small { font-size: 13px; color: var(--text-secondary); }

/* ======= HERO ======= */
.hero {
  min-height: calc(100vh - var(--nav-height));
  display: flex;
  align-items: center;
  padding: 80px 0 64px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero h1 { margin-top: 16px; }
.hero-actions { display: flex; gap: 10px; margin-top: 32px; flex-wrap: wrap; }
.hero-image {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
}

/* ======= PAGE HERO ======= */
.page-hero {
  padding: 80px 0 48px;
  border-bottom: 1px solid var(--border-light);
}
.page-hero h1 { margin-top: 8px; }

/* ======= BREADCRUMB ======= */
.breadcrumb {
  display: flex;
  gap: 8px;
  font-size: 13px;
  color: var(--text-tertiary);
  margin-bottom: 8px;
}
.breadcrumb a { color: var(--accent); }
.breadcrumb a:hover { text-decoration: underline; }

/* ======= CARD ======= */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: border-color .15s, box-shadow .15s;
}
.card:hover { border-color: var(--text-tertiary); }

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

/* ======= STATS ======= */
.stats {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
.stat {
  text-align: center;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
}
.stat strong {
  display: block;
  font-size: 32px;
  line-height: 1;
  color: var(--text);
}
.stat span { font-size: 13px; color: var(--text-secondary); display: block; margin-top: 6px; }

/* ======= LIST ======= */
.list { display: grid; gap: 8px; }
.list li {
  padding-left: 20px;
  position: relative;
  color: var(--text-secondary);
  font-size: 14px;
}
.list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

/* ======= PILLS ======= */
.pill-row { display: flex; flex-wrap: wrap; gap: 6px; margin: 16px 0 20px; }
.pill {
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg);
}

/* ======= CTA BAND ======= */
.cta-band {
  padding: 48px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-align: center;
  background: var(--bg-secondary);
}
.cta-band .lead { margin: 12px auto 0; }
.cta-band .hero-actions { justify-content: center; }

/* ======= LOGO STRIP ======= */
.logo-strip {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}
.tech-badge {
  display: grid;
  place-items: center;
  height: 64px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 12px;
  font-weight: 700;
  color: var(--text-secondary);
  background: var(--surface);
}

/* ======= ARTICLE CARD ======= */
.article-card time {
  display: block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
  margin-bottom: 8px;
}
.article-card h3 { margin-bottom: 8px; }
.article-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }
.article-card a { font-size: 13px; font-weight: 600; color: var(--accent); display: inline-block; margin-top: 12px; }
.article-card a:hover { text-decoration: underline; }

/* ======= FAQ ======= */
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  overflow: hidden;
}
.faq-item + .faq-item { margin-top: 8px; }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  border: 0;
  background: transparent;
  color: var(--text);
  font-weight: 600;
  font-size: 14px;
  text-align: left;
  cursor: pointer;
}
.faq-question span { font-size: 18px; color: var(--text-secondary); transition: transform .2s; flex-shrink: 0; }
.faq-item.open .faq-question span { transform: rotate(45deg); }
.faq-answer { display: none; padding: 0 20px 16px; font-size: 14px; color: var(--text-secondary); line-height: 1.6; }
.faq-item.open .faq-answer { display: block; }

/* ======= FORMS ======= */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: grid; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 13px; font-weight: 600; color: var(--text); }
.field input, .field textarea, .field select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  transition: border-color .15s;
}
.field input:focus, .field textarea:focus, .field select:focus {
  border-color: var(--accent);
  outline: none;
  box-shadow: 0 0 0 3px var(--accent-light);
}
.field textarea { min-height: 120px; resize: vertical; }
.field .error { font-size: 12px; color: var(--error); }

/* ======= FOOTER ======= */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 64px 0 32px;
  background: var(--bg-secondary);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr;
  gap: 32px;
}
.footer-grid h3 { font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 16px; color: var(--text); }
.footer-grid a, .footer-grid p { display: block; font-size: 13px; color: var(--text-secondary); margin: 6px 0; }
.footer-grid a:hover { color: var(--accent); }
.newsletter { display: flex; gap: 8px; }
.newsletter input {
  flex: 1;
  min-width: 0;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  font-size: 13px;
}
.footer-bottom {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-secondary);
}

/* ======= BACK TO TOP ======= */
.back-to-top {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text-secondary);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity .2s, transform .2s;
}
.back-to-top.visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
.back-to-top:hover { border-color: var(--text-secondary); }

/* ======= TOAST ======= */
.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translate(-50%, 16px);
  z-index: 200;
  padding: 12px 20px;
  border-radius: var(--radius);
  background: var(--text);
  color: var(--bg);
  font-size: 14px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s, transform .2s;
  white-space: nowrap;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ======= LOADER ======= */
.site-loader {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: var(--bg);
  z-index: 2000;
  transition: opacity .3s, visibility .3s;
}
.site-loader.hidden { opacity: 0; visibility: hidden; }
.loader-ring {
  width: 24px;
  height: 24px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .6s linear infinite;
}

/* ======= LEGAL DOC ======= */
.legal-wrapper {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 48px;
  align-items: start;
}
.legal-sidebar {
  position: sticky;
  top: calc(var(--nav-height) + 32px);
}
.legal-sidebar h4 {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-tertiary);
  margin-bottom: 12px;
}
.legal-sidebar a {
  display: block;
  font-size: 13px;
  padding: 6px 0;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-light);
  transition: color .15s;
}
.legal-sidebar a:hover { color: var(--accent); }
.legal-doc { max-width: 100%; }
.legal-doc h2 {
  font-size: 24px;
  margin-top: 48px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  scroll-margin-top: 80px;
}
.legal-doc h2:first-child { margin-top: 0; }
.legal-doc h3 { font-size: 16px; margin-top: 24px; }
.legal-doc p, .legal-doc li {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}
.legal-doc p { margin-top: 12px; }
.legal-doc ul { list-style: disc; padding-left: 20px; margin-top: 8px; }
.legal-doc ul li { margin-top: 4px; }
.legal-note {
  padding: 12px 16px;
  border-left: 3px solid var(--accent);
  background: var(--accent-light);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 16px;
}

/* ======= JOB META ======= */
.job-meta { display: flex; flex-wrap: wrap; gap: 8px; margin: 8px 0 12px; }
.job-meta span {
  padding: 3px 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
}

/* ======= CASE META ======= */
.case-meta { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--accent); }

/* ======= SERVICE CARD ======= */
.service-card { text-align: center; }
.service-card .icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  margin: 0 auto 16px;
  border-radius: var(--radius);
  background: var(--accent-light);
  color: var(--accent);
  font-weight: 700;
  font-size: 16px;
}
.service-card h3 { margin-bottom: 8px; }
.service-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; margin-bottom: 16px; }

/* ======= TABLE ======= */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius-lg); }
table { width: 100%; border-collapse: collapse; min-width: 600px; }
th, td { padding: 12px 16px; border-bottom: 1px solid var(--border); text-align: left; font-size: 14px; vertical-align: top; }
th { font-weight: 700; color: var(--text); background: var(--bg-secondary); }
td { color: var(--text-secondary); }

/* ======= SIDEBAR ======= */
.sidebar-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  background: var(--surface);
  margin-bottom: 16px;
}
.sidebar-card h3 { font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 12px; color: var(--text); }
.sidebar-card a {
  display: block;
  padding: 6px 0;
  font-size: 13px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-light);
}
.sidebar-card a:hover { color: var(--accent); }

/* ======= PAGINATION ======= */
.pagination { display: flex; gap: 6px; justify-content: center; margin-top: 48px; }
.pagination-btn {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s, border-color .15s;
}
.pagination-btn:hover { border-color: var(--text-secondary); }
.pagination-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ======= TIMELINE ======= */
.timeline { display: grid; gap: 16px; }
.timeline-item {
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}
.timeline-item strong { display: block; font-size: 13px; color: var(--accent); margin-bottom: 4px; }
.timeline-item h3 { margin-bottom: 4px; }
.timeline-item p { font-size: 14px; color: var(--text-secondary); }

/* ======= FILTER BAR ======= */
.filter-bar { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 32px; }
.filter-btn {
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s, color .15s;
}
.filter-btn:hover { border-color: var(--text-secondary); }
.filter-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ======= MISCELLANEOUS ======= */
hr { border: none; border-top: 1px solid var(--border); margin: 48px 0; }
.text-center { text-align: center; }
.mt-16 { margin-top: 16px; }
.mt-32 { margin-top: 32px; }
.mb-16 { margin-bottom: 16px; }
.mb-32 { margin-bottom: 32px; }
.gap-16 { gap: 16px; }