/* ============================================
   VISHNU ADS — GLOBAL STYLESHEET
   Palette: Black + Yellow (per brand reference)
   ============================================ */

:root {
  --bg-primary: #0A0A0A;
  --bg-secondary: #111111;
  --bg-card: #161616;
  --border: rgba(255,255,255,0.09);

  --cta: #FFE01B;
  --cta-hover: #F2D200;
  --purple: #FFC400;        /* secondary accent — amber (legacy token name) */
  --purple-light: #FFD666;

  --white: #FFFFFF;
  --gray-200: #E7E7E7;
  --gray-300: #C9C9C9;
  --gray-400: #9C9C9C;
  --gray-500: #6F6F6F;
  --gray-600: #4A4A4A;

  --gradient-hero: linear-gradient(180deg, #0A0A0A 0%, #101010 60%, #0A0A0A 100%);
  --gradient-cta: linear-gradient(135deg, #FFE01B 0%, #FFC400 100%);

  --radius: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --shadow-card: 0 10px 40px rgba(0,0,0,0.45);
  --shadow-cta: 0 8px 28px rgba(255,224,27,0.25);

  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- RESET / BASE ---------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--cta); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--cta-hover); }
ul { list-style: none; }
h1, h2, h3, h4, h5 { line-height: 1.15; font-weight: 800; }
p { color: var(--gray-400); }

::selection { background: var(--cta); color: #0A0A0A; }

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- SECTIONS ---------- */
.section { padding: 100px 0; position: relative; }
.section-sm { padding: 64px 0; position: relative; }
.section-header { max-width: 720px; margin: 0 auto 56px; text-align: center; }
.section-badge {
  display: inline-block;
  background: rgba(255,224,27,0.1);
  border: 1px solid rgba(255,224,27,0.3);
  color: var(--cta);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 18px;
}
.section-title {
  font-size: clamp(1.9rem, 3.6vw, 2.8rem);
  font-weight: 900;
  margin-bottom: 16px;
}
.section-subtitle {
  color: var(--gray-400);
  font-size: 1.02rem;
  max-width: 640px;
  margin: 0 auto;
}
.gradient-text {
  background: linear-gradient(135deg, #FFE01B 0%, #FFC400 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  padding: 14px 30px;
  border-radius: 100px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--cta);
  color: #0A0A0A;
  box-shadow: var(--shadow-cta);
}
.btn-primary:hover {
  background: var(--cta-hover);
  color: #0A0A0A;
  transform: translateY(-2px);
  box-shadow: 0 12px 34px rgba(255,224,27,0.35);
}
.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.25);
}
.btn-outline:hover {
  border-color: var(--cta);
  color: var(--cta);
  transform: translateY(-2px);
}
.btn-lg { padding: 17px 38px; font-size: 1.02rem; }
.btn-sm { padding: 10px 22px; font-size: 0.85rem; }

.animate-pulse-cta { animation: pulse-cta 2.4s infinite; }
@keyframes pulse-cta {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255,224,27,0.4); }
  55% { box-shadow: 0 0 0 14px rgba(255,224,27,0); }
}

/* ---------- NAVBAR ---------- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(10,10,10,0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
  transition: var(--transition);
}
.navbar.scrolled { background: rgba(10,10,10,0.97); }
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--cta);
  color: #0A0A0A;
  font-weight: 800;
  font-size: 1rem;
  padding: 9px 20px;
  border-radius: 100px;
  letter-spacing: 0.01em;
}
.nav-logo:hover { background: var(--cta-hover); color: #0A0A0A; }
.nav-logo em { font-style: normal; font-weight: 900; }
.nav-logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  color: var(--gray-300);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 6px 0;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  background: var(--cta);
  transition: var(--transition);
}
.nav-links a:hover { color: var(--white); }
.nav-links a.active { color: var(--cta); }
.nav-links a.active::after, .nav-links a:hover::after { width: 100%; }
.nav-cta { display: flex; align-items: center; gap: 16px; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
}
.hamburger span {
  width: 24px; height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

/* Mobile menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(10,10,10,0.98);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 26px;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}
.mobile-menu.open { opacity: 1; visibility: visible; }
.mobile-menu a {
  color: var(--white);
  font-size: 1.3rem;
  font-weight: 700;
}
.mobile-menu a:hover { color: var(--cta); }
.mobile-menu-close {
  position: absolute;
  top: 28px; right: 28px;
  font-size: 1.6rem;
  color: var(--gray-300);
  cursor: pointer;
}
.mobile-menu-close:hover { color: var(--cta); }

/* ---------- PAGE HERO (inner pages) ---------- */
.page-hero {
  padding: 170px 0 80px;
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
  text-align: center;
}
.page-hero::before {
  content: '';
  position: absolute;
  top: -260px; right: -160px;
  width: 620px; height: 620px;
  background: radial-gradient(circle, rgba(255,224,27,0.07) 0%, transparent 65%);
  pointer-events: none;
}
.breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.82rem;
  color: var(--gray-500);
  margin-bottom: 18px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.breadcrumb a { color: var(--gray-400); }
.breadcrumb a:hover { color: var(--cta); }

/* ---------- STAT CHIPS ---------- */
.stat-chip {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-top: 2px solid var(--cta);
  border-radius: var(--radius);
  padding: 14px 26px;
  min-width: 110px;
}
.stat-num {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--cta);
  line-height: 1.1;
}
.stat-label {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray-400);
}

/* ---------- METRIC CARDS ---------- */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px 24px;
  text-align: center;
  transition: var(--transition);
}
.metric-card:hover {
  border-color: rgba(255,224,27,0.4);
  transform: translateY(-4px);
}
.metric-num {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--cta);
  margin-bottom: 4px;
}
.metric-label {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-400);
}

/* ---------- TAGS ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  color: var(--gray-300);
}
.tag-cta {
  background: rgba(255,224,27,0.1);
  border-color: rgba(255,224,27,0.35);
  color: var(--cta);
}
.tag-purple {
  background: rgba(255,196,0,0.1);
  border-color: rgba(255,196,0,0.35);
  color: var(--purple-light);
}

/* ---------- FORMS ---------- */
.form-group { margin-bottom: 22px; }
.form-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gray-300);
  margin-bottom: 8px;
}
.form-control {
  width: 100%;
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--white);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  transition: var(--transition);
}
.form-control::placeholder { color: var(--gray-500); }
.form-control:focus {
  outline: none;
  border-color: var(--cta);
  box-shadow: 0 0 0 3px rgba(255,224,27,0.15);
}
textarea.form-control { resize: vertical; min-height: 130px; }
select.form-control { appearance: none; cursor: pointer; }

/* ---------- CAROUSEL ---------- */
.carousel-wrapper { position: relative; overflow: hidden; }
.carousel-track {
  display: flex;
  gap: 24px;
  transition: transform 0.55s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}
.carousel-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px; height: 46px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--white);
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition);
}
.carousel-btn:hover {
  background: var(--cta);
  border-color: var(--cta);
  color: #0A0A0A;
}
.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 28px;
}
.carousel-dots .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--gray-600);
  cursor: pointer;
  transition: var(--transition);
}
.carousel-dots .dot.active {
  background: var(--cta);
  width: 26px;
  border-radius: 100px;
}

/* ---------- FOOTER ---------- */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 72px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 56px;
}
.footer-brand p {
  margin-top: 16px;
  font-size: 0.92rem;
  max-width: 320px;
}
.footer-heading {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 20px;
}
.footer-links li { margin-bottom: 12px; }
.footer-links a {
  color: var(--gray-400);
  font-size: 0.92rem;
}
.footer-links a:hover { color: var(--cta); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.82rem;
  color: var(--gray-500);
}
.social-links { display: flex; gap: 12px; margin-top: 20px; }
.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  color: var(--gray-300);
  font-size: 0.95rem;
  transition: var(--transition);
}
.social-link:hover {
  background: var(--cta);
  border-color: var(--cta);
  color: #0A0A0A;
  transform: translateY(-3px);
}

/* ---------- ANIMATIONS ---------- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(28px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

[data-animate] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
[data-animate].in-view {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 1024px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .section { padding: 72px 0; }
  .metrics-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .btn-lg { padding: 15px 28px; }
  .nav-cta .btn { display: none; }
}