/* Base */
:root {
  --color-bg: #0f1115;
  --color-surface: #161a22;
  --color-text: #e7eaf0;
  --color-muted: #9aa3b2;

  /* Brand roles */
  --velugu-primary: #008080; /* teal */
  --velugu-accent: #daa520; /* goldenrod */

  --vyapari-primary: #2d5016; /* dark green */
  --vyapari-accent: #daa520; /* goldenrod */

  --vahini-primary: #884513; /* brownish */
  --vahini-accent: #ff8c69; /* salmon */

  --radius-md: 12px;
  --radius-lg: 18px;
  --shadow-1: 0 8px 30px rgba(0,0,0,0.35);
  --maxw: 1200px;
  --header-h: 68px;
}

/* Light theme overrides */
[data-theme="light"] {
  --color-bg: #ffffff;
  --color-surface: #f7f8fa;
  --color-text: #0f1115;
  --color-muted: #4b5565;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--color-text);
  background: radial-gradient(1200px 600px at 80% -10%, rgba(0, 128, 128, 0.1), transparent 60%),
              radial-gradient(900px 500px at 0% 0%, rgba(218, 165, 32, 0.08), transparent 55%),
              var(--color-bg);
  line-height: 1.6;
  padding-top: var(--header-h);
}

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.skip-link:focus {
  position: fixed;
  left: 16px;
  top: 16px;
  width: auto;
  height: auto;
  padding: 8px 12px;
  background: #000;
  color: #fff;
  border-radius: 6px;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  background: rgba(15,17,21,0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
[data-theme="light"] .site-header {
  background: rgba(255,255,255,0.85);
  border-bottom: 1px solid rgba(0,0,0,0.08);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
}
.brand-logo { width: 44px; height: 12px; display: block; }
.brand-name { letter-spacing: 0.2px; }

.site-nav ul {
  list-style: none;
  display: flex;
  gap: 20px;
  margin: 0;
  padding: 0;
}
.site-nav a {
  color: var(--color-text);
  text-decoration: none;
  padding: 8px 10px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.site-nav .section-logo { width: 20px; height: 20px; display: inline-block; }
.site-nav a:hover {
  background: rgba(255,255,255,0.06);
}

/* Theme toggle */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--color-text);
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 10px;
  padding: 8px 12px;
  cursor: pointer;
}
.theme-toggle:hover { background: rgba(255,255,255,0.12); }
.theme-toggle:focus-visible { outline: 2px solid var(--velugu-accent); outline-offset: 2px; }
[data-theme="light"] .theme-toggle {
  background: rgba(0,0,0,0.04);
  border-color: rgba(0,0,0,0.08);
}
[data-theme="light"] .theme-toggle:hover { background: rgba(0,0,0,0.08); }

/* Language toggle */
.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  color: var(--color-text);
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 10px;
  padding: 8px 12px;
  cursor: pointer;
}
.lang-toggle:hover { background: rgba(255,255,255,0.12); }
.lang-toggle:focus-visible { outline: 2px solid var(--velugu-accent); outline-offset: 2px; }
[data-theme="light"] .lang-toggle { background: rgba(0,0,0,0.04); border-color: rgba(0,0,0,0.08); }
[data-theme="light"] .lang-toggle:hover { background: rgba(0,0,0,0.08); }

/* Hero */
.hero {
  padding: 72px 0 40px;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 28px;
  align-items: center;
}
.hero h1 {
  margin: 0 0 12px;
  font-size: clamp(28px, 5vw, 44px);
  line-height: 1.1;
}
.hero p { color: var(--color-muted); max-width: 60ch; }

.hero-ctas { display: flex; gap: 12px; margin-top: 18px; }
.btn { display: inline-block; text-decoration: none; font-weight: 600; border-radius: 10px; }
.btn-primary { background: var(--velugu-accent); color: #1a1202; padding: 12px 16px; }
.btn-secondary { background: rgba(255,255,255,0.08); color: var(--color-text); padding: 12px 16px; }
.btn-text { color: var(--color-muted); text-decoration: underline; padding: 10px 0; }
[data-theme="light"] .btn-secondary { background: rgba(0,0,0,0.06); }

.hero-visual { display: grid; place-items: center; }
.orb {
  width: min(420px, 70vw);
  aspect-ratio: 1/1;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(0,128,128,0.35), rgba(0,128,128,0.15), transparent),
              conic-gradient(from 180deg at 50% 50%, rgba(218,165,32,0.4), transparent 60%),
              linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0));
  box-shadow: var(--shadow-1), inset 0 0 60px rgba(0,0,0,0.4);
}

/* Sections */
.section { padding: 56px 0; }
.section-header { margin-bottom: 18px; }
.section h2 { margin: 0 0 6px; font-size: clamp(22px, 4vw, 32px); }
.eyebrow { color: var(--color-muted); margin: 0; }

.title-row { display: flex; align-items: center; gap: 12px; }
.section-logo { width: 36px; height: 36px; flex: 0 0 auto; }
.app-links { display: flex; gap: 10px; margin-top: 10px; flex-wrap: wrap; }
.btn-app { font-weight: 600; text-decoration: none; border-radius: 8px; padding: 8px 12px; }
.btn-app--android { background: #3ddc84; color: #062b17; }
.btn-app--web { background: rgba(255,255,255,0.08); color: var(--color-text); }
[data-theme="light"] .btn-app--web { background: rgba(0,0,0,0.06); }

.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: 1fr; }
@media (min-width: 900px) {
  .grid-2 { grid-template-columns: 1fr 1fr; }
}

.bullets { padding-left: 18px; margin: 10px 0 0; }
.bullets li { margin: 6px 0; }

.card {
  background: var(--color-surface);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  padding: 18px;
  box-shadow: var(--shadow-1);
}
[data-theme="light"] .card { border-color: rgba(0,0,0,0.08); }
.card--accent { border-color: rgba(255,140,105,0.45); }
.checklist, .steps { margin: 10px 0 0; }
.checklist li, .steps li { margin: 8px 0; }

/* Map figure */
.map-figure {
  margin: 0;
  background: radial-gradient(450px 300px at 20% 0%, rgba(218,165,32,0.12), transparent 60%), var(--color-surface);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  padding: 12px;
  box-shadow: var(--shadow-1);
}
.map-figure img { width: 100%; height: auto; display: block; border-radius: 10px; }
.map-figure figcaption { color: var(--color-muted); font-size: 14px; margin-top: 8px; }
[data-theme="light"] .map-figure { border-color: rgba(0,0,0,0.08); }
.map-figure img { width: 100%; height: auto; display: block; border-radius: 10px; }
.map-figure figcaption { color: var(--color-muted); font-size: 14px; margin-top: 8px; }

/* Themed sections */
.section--velugu { --section-primary: var(--velugu-primary); --section-accent: var(--velugu-accent); }
.section--vyapari { --section-primary: var(--vyapari-primary); --section-accent: var(--vyapari-accent); }
.section--vahini { --section-primary: var(--vahini-primary); --section-accent: var(--vahini-accent); }

.section--velugu .section-header h2 { color: var(--section-primary); }
.section--vyapari .section-header h2 { color: var(--section-primary); }
.section--vahini .section-header h2 { color: var(--section-primary); }

.section--velugu .card { border-color: rgba(218,165,32,0.35); }
.section--vyapari .card { border-color: rgba(218,165,32,0.35); }
.section--vahini .card { border-color: rgba(255,140,105,0.45); }

/* Contact */
.contact-form {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
.form-row { display: grid; gap: 6px; }
.form-row label { color: var(--color-text); font-weight: 600; }
.contact-form input,
.contact-form select,
.contact-form textarea {
  background: #10141b;
  color: var(--color-text);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  padding: 10px 12px;
}
[data-theme="light"] .contact-form input,
[data-theme="light"] .contact-form select,
[data-theme="light"] .contact-form textarea {
  background: #ffffff;
  border-color: rgba(0,0,0,0.1);
}
.form-help { color: var(--color-muted); margin: 4px 0 0; font-size: 14px; }
.form-actions { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }

/* Footer */
.site-footer {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 20px 0 36px;
  margin-top: 24px;
}
[data-theme="light"] .site-footer { border-top-color: rgba(0,0,0,0.08); }
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.site-footer nav a { color: var(--color-muted); text-decoration: none; margin-left: 12px; }
.site-footer nav a:hover { color: var(--color-text); }

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}