/* ============================================================
   Kalajna Labs — Shared Stylesheet
   Modern dark theme with gradient accents
   ============================================================ */

/* ---------- Design Tokens ---------- */
:root {
  /* Kalajna brand — inspired by Lord Krishna:
     Shyam peacock-blue · peacock-feather teal · pitambara gold */
  --bg: #061021;
  --bg-soft: #0a1a30;
  --bg-card: #0d2238;
  --bg-card-2: #112a44;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.15);

  --text: #eef3fb;
  --text-soft: #a6b6cc;
  --text-dim: #6b7a92;

  --brand-1: #2f6bff;   /* Krishna sapphire blue (Shyam) */
  --brand-2: #f5b524;   /* pitambara gold accent */
  --brand-3: #1fc8b0;   /* peacock-feather teal */
  --brand-grad: linear-gradient(120deg, #2f6bff 0%, #19c3b6 100%);
  --brand-grad-3: linear-gradient(120deg, #2f6bff 0%, #1fc8b0 55%, #f5b524 100%);

  /* accent tints (theme-driven) */
  --icon-bg: rgba(47, 107, 255, 0.14);
  --icon-border: rgba(47, 107, 255, 0.30);
  --accent-bg: rgba(245, 181, 36, 0.14);
  --accent-border: rgba(245, 181, 36, 0.32);
  --ring: rgba(47, 107, 255, 0.25);
  --btn-shadow: rgba(47, 107, 255, 0.5);
  --hero-radial-1: rgba(47, 107, 255, 0.26);
  --hero-radial-2: rgba(31, 200, 176, 0.16);

  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 28px;

  --shadow: 0 20px 50px -20px rgba(0, 0, 0, 0.7);
  --glow: 0 0 60px -12px rgba(47, 107, 255, 0.5);

  --hero-glow-1: rgba(47, 107, 255, 0.18);
  --hero-glow-2: rgba(31, 200, 176, 0.12);

  --max: 1180px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  --header-h: 72px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
section { position: relative; }

/* ---------- Background glow ---------- */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(600px 400px at 12% -5%, var(--hero-glow-1), transparent 60%),
    radial-gradient(700px 500px at 100% 0%, var(--hero-glow-2), transparent 55%);
  pointer-events: none;
  z-index: 0;
}

/* ---------- Layout helpers ---------- */
.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }
.section { padding: 110px 0; }
.section-tight { padding: 70px 0; }
.center { text-align: center; }

.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand-2);
  margin-bottom: 16px;
}
.section-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 16px;
}
.section-sub {
  color: var(--text-soft);
  max-width: 620px;
  margin: 0 auto;
  font-size: 17px;
}
.gradient-text {
  background: var(--brand-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-weight: 600;
  font-size: 15px;
  padding: 13px 26px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.2s ease, border-color 0.2s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--brand-grad);
  color: #fff;
  box-shadow: 0 10px 30px -10px var(--btn-shadow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 40px -10px var(--btn-shadow); }
.btn-ghost {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.09); transform: translateY(-2px); }
.btn-lg { padding: 16px 32px; font-size: 16px; }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  display: flex;
  align-items: center;
  z-index: 100;
  transition: background 0.3s, border-color 0.3s, backdrop-filter 0.3s;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(6, 8, 15, 0.8);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--border);
}
.nav { display: flex; align-items: center; justify-content: space-between; width: 100%; }
.brand { display: flex; align-items: center; gap: 11px; font-weight: 800; font-size: 19px; letter-spacing: -0.01em; }
.brand-mark {
  width: 34px; height: 34px;
  border-radius: 9px;
  background: var(--brand-grad);
  display: grid; place-items: center;
  font-weight: 800; color: #fff;
  box-shadow: var(--glow);
}
img.brand-mark {
  width: 40px; height: 40px;
  border-radius: 0;
  background: none;
  box-shadow: none;
  object-fit: contain;
}
.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links a { color: var(--text-soft); font-size: 15px; font-weight: 500; transition: color 0.2s; }
.nav-links a:hover { color: var(--text); }
.nav-cta { display: flex; align-items: center; gap: 14px; }
.nav-toggle {
  display: none;
  background: none; border: none; cursor: pointer;
  width: 42px; height: 42px;
  color: var(--text);
}
.nav-toggle svg { width: 26px; height: 26px; }

/* ---------- Hero ---------- */
.hero { padding: calc(var(--header-h) + 80px) 0 90px; text-align: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600;
  padding: 7px 15px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-soft);
  margin-bottom: 26px;
}
.hero-badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--brand-2); box-shadow: 0 0 10px var(--brand-2); }
.hero h1 {
  font-size: clamp(36px, 6.5vw, 70px);
  line-height: 1.04;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 22px;
}
.hero p.lead {
  font-size: clamp(17px, 2.2vw, 20px);
  color: var(--text-soft);
  max-width: 660px;
  margin: 0 auto 36px;
}
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-logos {
  margin-top: 56px;
  display: flex; gap: 38px; justify-content: center; flex-wrap: wrap;
  color: var(--text-dim);
  font-size: 14px; font-weight: 600; letter-spacing: 0.04em;
  opacity: 0.85;
}

/* ---------- Hero slider (full-width) ---------- */
.hero-full {
  position: relative;
  width: 100%;
  min-height: 88vh;
  overflow: hidden;
  display: flex;
}
.hero-slider { position: relative; width: 100%; }
.hero-slide {
  position: absolute; inset: 0;
  opacity: 0; visibility: hidden;
  transition: opacity 0.9s ease;
  display: flex; align-items: center;
}
.hero-slide.active { opacity: 1; visibility: visible; z-index: 1; }
.hero-slide__bg {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  transform: scale(1.06);
  transition: transform 7s ease;
}
.hero-slide.active .hero-slide__bg { transform: scale(1); }   /* slow Ken-Burns zoom */
.hero-slide__overlay {
  position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(6,16,31,0.94) 0%, rgba(6,16,31,0.78) 42%, rgba(6,16,31,0.30) 100%),
    linear-gradient(0deg, rgba(6,16,31,0.85) 0%, rgba(6,16,31,0) 45%);
}
.hero-slide__content {
  position: relative; z-index: 2;
  padding-top: var(--header-h);
  max-width: var(--max);
}
.hero-slide__content .hero-badge,
.hero-slide__content h1,
.hero-slide__content .lead,
.hero-slide__content .hero-actions {
  opacity: 0; transform: translateY(20px);
}
.hero-slide.active .hero-slide__content > * { animation: heroIn 0.7s ease forwards; }
.hero-slide.active .hero-slide__content > *:nth-child(1) { animation-delay: 0.15s; }
.hero-slide.active .hero-slide__content > *:nth-child(2) { animation-delay: 0.28s; }
.hero-slide.active .hero-slide__content > *:nth-child(3) { animation-delay: 0.40s; }
.hero-slide.active .hero-slide__content > *:nth-child(4) { animation-delay: 0.52s; }
@keyframes heroIn { to { opacity: 1; transform: none; } }
.hero-slide h1 {
  font-size: clamp(34px, 5.6vw, 64px);
  line-height: 1.05; font-weight: 800; letter-spacing: -0.03em;
  margin-bottom: 20px; max-width: 16ch;
}
.hero-slide p.lead { font-size: clamp(16px, 2.1vw, 20px); color: var(--text-soft); max-width: 600px; margin: 0 0 34px; }
.hero-slide .hero-actions { justify-content: flex-start; }

.slider-dots {
  position: absolute; left: 0; right: 0; bottom: 34px; z-index: 5;
  display: flex; gap: 10px; justify-content: center;
}
.slider-dot {
  width: 9px; height: 9px; border-radius: 999px;
  background: rgba(255,255,255,0.28); border: none; cursor: pointer; padding: 0;
  transition: width 0.25s, background 0.25s;
}
.slider-dot.active { width: 32px; background: var(--brand-2); }
.slider-arrow {
  width: 46px; height: 46px; border-radius: 50%;
  background: rgba(8,16,31,0.45); border: 1px solid var(--border-strong);
  color: var(--text); cursor: pointer;
  display: grid; place-items: center;
  transition: background 0.2s, transform 0.2s;
  backdrop-filter: blur(6px);
}
.slider-arrow:hover { background: rgba(8,16,31,0.75); }
.slider-arrow svg { width: 22px; height: 22px; }
.slider-arrow--edge {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 5;
}
.slider-arrow--edge.prev { left: 22px; }
.slider-arrow--edge.next { right: 22px; }
.slider-arrow--edge:hover { transform: translateY(-50%) scale(1.06); }
@media (max-width: 680px) {
  .hero-full { min-height: 92vh; }
  .slider-arrow--edge { display: none; }
  .hero-slide__content { text-align: left; }
}

/* ---------- Grid cards ---------- */
.grid { display: grid; gap: 22px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: linear-gradient(180deg, var(--bg-card), var(--bg-card-2));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  transition: transform 0.22s ease, border-color 0.22s, box-shadow 0.22s;
  position: relative;
  overflow: hidden;
}
.card:hover { transform: translateY(-5px); border-color: var(--border-strong); box-shadow: var(--shadow); }
.card-icon {
  width: 52px; height: 52px;
  border-radius: 13px;
  display: grid; place-items: center;
  background: var(--icon-bg);
  border: 1px solid var(--icon-border);
  margin-bottom: 20px;
  font-size: 24px;
}
.card h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; letter-spacing: -0.01em; }
.card p { color: var(--text-soft); font-size: 15px; }

/* ---------- Stats ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat { text-align: center; padding: 28px 16px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg-soft); }
.stat .num { font-size: clamp(30px, 4vw, 46px); font-weight: 800; letter-spacing: -0.02em; }
.stat .label { color: var(--text-soft); font-size: 14px; margin-top: 4px; }

/* ---------- Tech stack ---------- */
.tech-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.tech-card { background: var(--bg-soft); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 22px 24px; }
.tech-card h4 { font-size: 14px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--brand-2); margin-bottom: 8px; }
.tech-card p { color: var(--text-soft); font-size: 15px; }

/* ---------- Portfolio ---------- */
.portfolio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.project {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-card);
  transition: transform 0.22s, border-color 0.22s, box-shadow 0.22s;
  display: flex; flex-direction: column;
}
.project:hover { transform: translateY(-5px); border-color: var(--border-strong); box-shadow: var(--shadow); }
.project-thumb {
  aspect-ratio: 16 / 10;
  display: grid; place-items: center;
  font-size: 30px; font-weight: 800; letter-spacing: -0.02em;
  color: #fff;
  position: relative;
}
.project-thumb.pf-1 { background: var(--brand-grad); }
.project-thumb.pf-2 { background: linear-gradient(135deg, #ff5ca8, #7c5cff); }
.project-thumb.pf-3 { background: linear-gradient(135deg, #2dd4ff, #1f8b6f); }
.project-thumb.pf-4 { background: linear-gradient(135deg, #ffae4c, #ff5ca8); }
.project-body { padding: 22px 24px; flex: 1; display: flex; flex-direction: column; }
.project-tag { font-size: 12px; font-weight: 600; color: var(--brand-2); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 9px; }
.project-body h3 { font-size: 19px; font-weight: 700; margin-bottom: 8px; }
.project-body p { color: var(--text-soft); font-size: 14px; flex: 1; }
.project-link { margin-top: 16px; font-weight: 600; font-size: 14px; color: var(--text); display: inline-flex; align-items: center; gap: 7px; }
.project-link .arrow { transition: transform 0.2s; }
.project:hover .project-link .arrow { transform: translateX(4px); }
.badge-featured {
  position: absolute; top: 12px; left: 12px;
  background: rgba(0,0,0,0.45); backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,0.25);
  font-size: 11px; font-weight: 700; letter-spacing: 0.06em;
  padding: 5px 11px; border-radius: 999px;
}

/* ---------- About / split ---------- */
.split { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center; }
.about-points { display: grid; gap: 16px; margin-top: 24px; }
.about-point { display: flex; gap: 14px; align-items: flex-start; }
.about-point .tick {
  flex: none; width: 26px; height: 26px; border-radius: 8px;
  background: var(--accent-bg); border: 1px solid var(--accent-border);
  display: grid; place-items: center; color: var(--brand-2); font-size: 14px; margin-top: 2px;
}
.about-point b { display: block; font-size: 15px; }
.about-point span { color: var(--text-soft); font-size: 14px; }
.about-visual {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background:
    radial-gradient(400px 300px at 70% 20%, var(--hero-radial-1), transparent 60%),
    linear-gradient(180deg, var(--bg-card), var(--bg-soft));
  padding: 40px;
  min-height: 340px;
  display: flex; flex-direction: column; justify-content: center; gap: 18px;
}

/* ---------- Testimonials ---------- */
.quote-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.quote { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; }
.quote .stars { color: #ffc857; margin-bottom: 14px; letter-spacing: 2px; }
.quote p { color: var(--text-soft); font-size: 15px; margin-bottom: 18px; }
.quote .who { display: flex; align-items: center; gap: 12px; }
.quote .avatar { width: 40px; height: 40px; border-radius: 50%; background: var(--brand-grad); display: grid; place-items: center; font-weight: 700; color: #fff; }
.quote .who b { font-size: 14px; display: block; }
.quote .who span { font-size: 13px; color: var(--text-dim); }

/* ---------- CTA banner ---------- */
.cta-banner {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-strong);
  background:
    radial-gradient(500px 300px at 0% 0%, var(--hero-radial-1), transparent 60%),
    radial-gradient(500px 300px at 100% 100%, var(--hero-radial-2), transparent 60%),
    var(--bg-card);
  padding: 60px;
  text-align: center;
}
.cta-banner h2 { font-size: clamp(26px, 4vw, 40px); font-weight: 800; letter-spacing: -0.02em; margin-bottom: 14px; }
.cta-banner p { color: var(--text-soft); max-width: 540px; margin: 0 auto 28px; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.contact-info { display: grid; gap: 24px; align-content: start; }
.info-item { display: flex; gap: 15px; align-items: flex-start; }
.info-item .ic {
  flex: none; width: 44px; height: 44px; border-radius: 12px;
  background: var(--icon-bg); border: 1px solid var(--icon-border);
  display: grid; place-items: center; font-size: 19px;
}
.info-item h4 { font-size: 15px; margin-bottom: 3px; }
.info-item p { color: var(--text-soft); font-size: 14px; }
form.contact-form { display: grid; gap: 16px; }
.field { display: grid; gap: 7px; }
.field label { font-size: 13px; font-weight: 600; color: var(--text-soft); }
.field input, .field textarea, .field select {
  width: 100%;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 13px 15px;
  color: var(--text);
  font-family: inherit;
  font-size: 15px;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--brand-1);
  box-shadow: 0 0 0 3px var(--ring);
}
.field textarea { resize: vertical; min-height: 120px; }
.form-note { font-size: 13px; color: var(--text-dim); }
.form-success { display: none; color: #4ade80; font-size: 14px; font-weight: 600; }
.form-success.show { display: block; }
.form-error { display: none; color: #f87171; font-size: 14px; font-weight: 600; }
.form-error.show { display: block; }
.btn[disabled] { opacity: 0.6; cursor: not-allowed; transform: none; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); padding: 60px 0 30px; background: var(--bg-soft); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-col h5 { font-size: 14px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text); margin-bottom: 16px; }
.footer-col a, .footer-col p { color: var(--text-soft); font-size: 14px; display: block; margin-bottom: 9px; transition: color 0.2s; }
.footer-col a:hover { color: var(--text); }
.footer-about p { max-width: 320px; }
.socials { display: flex; gap: 12px; margin-top: 18px; }
.socials a {
  width: 38px; height: 38px; border-radius: 10px;
  background: rgba(255,255,255,0.04); border: 1px solid var(--border);
  display: grid; place-items: center; color: var(--text-soft);
  transition: all 0.2s; margin: 0;
}
.socials a:hover { color: #fff; border-color: var(--border-strong); transform: translateY(-2px); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  color: var(--text-dim); font-size: 13px;
}
.footer-bottom a { color: var(--text-dim); }
.footer-bottom a:hover { color: var(--text-soft); }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Placeholder marker ---------- */
.ph { border-bottom: 1px dashed rgba(255,200,87,0.5); cursor: help; }

/* ---------- Responsive ---------- */
@media (max-width: 940px) {
  .grid-3, .grid-4, .tech-grid, .portfolio-grid, .quote-grid { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .split { grid-template-columns: 1fr; gap: 36px; }
  .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
}
@media (max-width: 680px) {
  .section { padding: 80px 0; }
  .nav-links, .nav-cta .btn { display: none; }
  .nav-toggle { display: grid; place-items: center; }
  .nav.open .nav-links {
    display: flex; flex-direction: column;
    position: absolute; top: var(--header-h); left: 0; right: 0;
    background: rgba(11,15,28,0.98); backdrop-filter: blur(14px);
    padding: 22px 24px; gap: 18px;
    border-bottom: 1px solid var(--border);
  }
  .grid-3, .grid-4, .tech-grid, .portfolio-grid, .quote-grid, .grid-2 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-banner, .about-visual { padding: 36px 24px; }
}

/* ============================================================
   COLOR THEMES  (set via <html data-theme="...">)
   Default (no attribute) = Aurora: violet → cyan
   ============================================================ */

/* 1) Emerald — emerald → teal */
[data-theme="emerald"] {
  --brand-1: #10b981; --brand-2: #5eead4; --brand-3: #34d399;
  --brand-grad: linear-gradient(120deg, #10b981 0%, #5eead4 100%);
  --brand-grad-3: linear-gradient(120deg, #34d399 0%, #10b981 50%, #5eead4 100%);
  --glow: 0 0 60px -12px rgba(16, 185, 129, 0.5);
  --hero-glow-1: rgba(16, 185, 129, 0.18);
  --hero-glow-2: rgba(94, 234, 212, 0.12);
}

/* 2) Sunset — orange → pink */
[data-theme="sunset"] {
  --brand-1: #ff7a45; --brand-2: #ff4d8d; --brand-3: #ffb04c;
  --brand-grad: linear-gradient(120deg, #ff7a45 0%, #ff4d8d 100%);
  --brand-grad-3: linear-gradient(120deg, #ffb04c 0%, #ff7a45 50%, #ff4d8d 100%);
  --glow: 0 0 60px -12px rgba(255, 77, 141, 0.5);
  --hero-glow-1: rgba(255, 122, 69, 0.18);
  --hero-glow-2: rgba(255, 77, 141, 0.14);
}

/* 3) Cobalt — blue → indigo (corporate) */
[data-theme="cobalt"] {
  --brand-1: #3b82f6; --brand-2: #38bdf8; --brand-3: #6366f1;
  --brand-grad: linear-gradient(120deg, #6366f1 0%, #38bdf8 100%);
  --brand-grad-3: linear-gradient(120deg, #6366f1 0%, #3b82f6 50%, #38bdf8 100%);
  --glow: 0 0 60px -12px rgba(59, 130, 246, 0.5);
  --hero-glow-1: rgba(99, 102, 241, 0.18);
  --hero-glow-2: rgba(56, 189, 248, 0.12);
}

/* 4) Nebula — magenta → purple */
[data-theme="nebula"] {
  --brand-1: #d946ef; --brand-2: #a78bfa; --brand-3: #f472b6;
  --brand-grad: linear-gradient(120deg, #d946ef 0%, #a78bfa 100%);
  --brand-grad-3: linear-gradient(120deg, #f472b6 0%, #d946ef 50%, #a78bfa 100%);
  --glow: 0 0 60px -12px rgba(217, 70, 239, 0.5);
  --hero-glow-1: rgba(217, 70, 239, 0.18);
  --hero-glow-2: rgba(167, 139, 250, 0.13);
}

/* 5) Goldwave — amber → gold (matches MagicVarsh promo) */
[data-theme="goldwave"] {
  --bg: #0a0a0f; --bg-soft: #12121b; --bg-card: #16161f; --bg-card-2: #1b1b26;
  --brand-1: #f5b431; --brand-2: #ffd76e; --brand-3: #ff9f1c;
  --brand-grad: linear-gradient(120deg, #ff9f1c 0%, #ffd76e 100%);
  --brand-grad-3: linear-gradient(120deg, #ff9f1c 0%, #f5b431 50%, #ffd76e 100%);
  --glow: 0 0 60px -12px rgba(245, 180, 49, 0.45);
  --hero-glow-1: rgba(245, 180, 49, 0.16);
  --hero-glow-2: rgba(255, 159, 28, 0.10);
}

/* 6) Daylight — clean LIGHT theme, violet accent */
[data-theme="daylight"] {
  --bg: #f7f8fc; --bg-soft: #ffffff; --bg-card: #ffffff; --bg-card-2: #f3f4fb;
  --border: rgba(20, 24, 40, 0.10); --border-strong: rgba(20, 24, 40, 0.18);
  --text: #141828; --text-soft: #4a5168; --text-dim: #8b92a6;
  --brand-1: #6d28d9; --brand-2: #0ea5e9; --brand-3: #db2777;
  --brand-grad: linear-gradient(120deg, #6d28d9 0%, #0ea5e9 100%);
  --brand-grad-3: linear-gradient(120deg, #db2777 0%, #6d28d9 50%, #0ea5e9 100%);
  --shadow: 0 20px 50px -24px rgba(40, 30, 90, 0.25);
  --glow: 0 0 50px -16px rgba(109, 40, 217, 0.4);
  --hero-glow-1: rgba(109, 40, 217, 0.12);
  --hero-glow-2: rgba(14, 165, 233, 0.10);
}
[data-theme="daylight"] .site-header.scrolled { background: rgba(255,255,255,0.85); }
[data-theme="daylight"] .nav.open .nav-links { background: rgba(255,255,255,0.98); }
[data-theme="daylight"] .hero-badge,
[data-theme="daylight"] .btn-ghost { background: rgba(20,24,40,0.03); }
[data-theme="daylight"] .card-icon { background: rgba(109,40,217,0.08); border-color: rgba(109,40,217,0.2); }

/* ============================================================
   THEME SWITCHER  (floating control)
   ============================================================ */
.theme-switcher {
  position: fixed;
  right: 18px; bottom: 18px;
  z-index: 200;
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(11, 15, 28, 0.82);
  border: 1px solid var(--border-strong);
  backdrop-filter: blur(14px);
  box-shadow: 0 14px 40px -14px rgba(0,0,0,0.6);
}
[data-theme="daylight"] .theme-switcher { background: rgba(255,255,255,0.9); }
.theme-switcher .ts-label { font-size: 12px; font-weight: 600; color: var(--text-soft); letter-spacing: 0.02em; }
.theme-dots { display: flex; gap: 8px; }
.theme-dot {
  width: 22px; height: 22px; border-radius: 50%;
  cursor: pointer; border: 2px solid transparent;
  transition: transform 0.15s, border-color 0.15s;
  padding: 0;
}
.theme-dot:hover { transform: scale(1.15); }
.theme-dot.active { border-color: var(--text); transform: scale(1.12); }
.theme-dot.t-aurora   { background: linear-gradient(135deg, #2f6bff, #1fc8b0 55%, #f5b524); }
.theme-dot.t-emerald  { background: linear-gradient(135deg, #10b981, #5eead4); }
.theme-dot.t-sunset   { background: linear-gradient(135deg, #ff7a45, #ff4d8d); }
.theme-dot.t-cobalt   { background: linear-gradient(135deg, #6366f1, #38bdf8); }
.theme-dot.t-nebula   { background: linear-gradient(135deg, #d946ef, #a78bfa); }
.theme-dot.t-goldwave { background: linear-gradient(135deg, #ff9f1c, #ffd76e); }
.theme-dot.t-daylight { background: linear-gradient(135deg, #ffffff 0%, #ffffff 50%, #6d28d9 50%, #0ea5e9 100%); border: 2px solid var(--border-strong); }
@media (max-width: 680px) {
  .theme-switcher { right: 12px; bottom: 12px; padding: 8px 10px; }
  .theme-switcher .ts-label { display: none; }
}