/* MainSantai — shared stylesheet */

:root {
  --color-primary: #7c3aed;
  --color-primary-dark: #6425d0;
  --color-secondary: #4f46e5;
  --color-secondary-dark: #3f37c9;
  --color-accent: #f0abfc;
  --color-bg: #faf8ff;
  --color-bg-alt: #f2edfd;
  --color-ink: #201c33;
  --color-ink-soft: #635f77;
  --color-border: #e3d9f7;
  --color-white: #ffffff;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-soft: 0 12px 30px rgba(124, 58, 237, 0.16);
  --shadow-card: 0 6px 18px rgba(35, 38, 43, 0.08);
  --max-width: 1120px;
  --font-base: "Segoe UI", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-base);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* Skip link for accessibility */
.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  background: var(--color-ink);
  color: #fff;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  z-index: 999;
}
.skip-link:focus {
  left: 20px;
  top: 20px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 248, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.35rem;
  text-decoration: none;
  color: var(--color-ink);
  letter-spacing: -0.02em;
}

.brand-badge {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 900;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.brand span.highlight {
  color: var(--color-primary);
}

.site-header .brand .logo-img {
  height: 36px;
  width: auto;
  display: block;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 26px;
}

.main-nav a {
  text-decoration: none;
  font-weight: 600;
  font-size: 0.96rem;
  color: var(--color-ink-soft);
  transition: color 0.15s ease;
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: var(--color-primary);
}

.nav-cta {
  background: var(--color-primary);
  color: #fff !important;
  padding: 10px 20px;
  border-radius: 999px;
  font-weight: 700 !important;
}

.nav-cta:hover {
  background: var(--color-primary-dark);
}

.nav-toggle {
  display: none;
  border: none;
  background: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-ink);
  margin: 5px 0;
  border-radius: 2px;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: 64px 0 56px;
  background: radial-gradient(circle at 15% 20%, #ede4fd 0%, transparent 45%),
    radial-gradient(circle at 85% 0%, #e6e6fb 0%, transparent 50%), var(--color-bg);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  color: var(--color-primary-dark);
  font-weight: 700;
  font-size: 0.82rem;
  padding: 7px 14px;
  border-radius: 999px;
  margin-bottom: 18px;
}

.hero h1 {
  font-size: clamp(2rem, 4.2vw, 3rem);
  line-height: 1.15;
  margin: 0 0 18px;
  letter-spacing: -0.02em;
}

.hero h1 .accent {
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p.lead {
  font-size: 1.08rem;
  color: var(--color-ink-soft);
  max-width: 52ch;
  margin: 0 0 28px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-soft);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
}

.btn-outline {
  background: transparent;
  border-color: var(--color-ink);
  color: var(--color-ink);
}

.btn-outline:hover {
  background: var(--color-ink);
  color: #fff;
}

.hero-note {
  font-size: 0.85rem;
  color: var(--color-ink-soft);
}

.hero-note strong {
  color: var(--color-ink);
}

/* Hero visual card */
.hero-visual {
  position: relative;
}

.promo-card {
  background: linear-gradient(160deg, var(--color-primary) 0%, #9333ea 55%, var(--color-accent) 100%);
  border-radius: var(--radius-lg);
  padding: 32px;
  color: #fff;
  box-shadow: 0 22px 45px rgba(88, 28, 178, 0.32);
  position: relative;
  overflow: hidden;
}

.promo-card::after {
  content: "";
  position: absolute;
  width: 220px;
  height: 220px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  top: -80px;
  right: -60px;
}

.promo-card .promo-label {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.9;
}

.promo-card .promo-amount {
  font-size: 3rem;
  font-weight: 900;
  margin: 6px 0 4px;
  letter-spacing: -0.03em;
}

.promo-card .promo-sub {
  font-size: 0.98rem;
  opacity: 0.95;
  margin-bottom: 22px;
}

.promo-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  position: relative;
  z-index: 1;
}

.promo-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 0.92rem;
  font-weight: 600;
}

.promo-list li .tick {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #fff;
  color: var(--color-primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 900;
}

.disclaimer-chip {
  margin-top: 18px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  font-size: 0.82rem;
  color: var(--color-ink-soft);
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

/* ---------- Section shared ---------- */
section {
  padding: 60px 0;
}

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 40px;
}

.section-tag {
  color: var(--color-secondary-dark);
  font-weight: 800;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.15rem);
  margin: 10px 0 12px;
  letter-spacing: -0.01em;
}

.section-head p {
  color: var(--color-ink-soft);
  margin: 0;
}

/* Steps */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.step-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 26px 22px;
  box-shadow: var(--shadow-card);
  position: relative;
}

.step-number {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--color-bg-alt);
  color: var(--color-primary-dark);
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.step-card h3 {
  margin: 0 0 8px;
  font-size: 1.08rem;
}

.step-card p {
  margin: 0;
  color: var(--color-ink-soft);
  font-size: 0.92rem;
}

/* Benefit / feature grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.feature-card {
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  padding: 26px 22px;
  border: 1px solid var(--color-border);
}

.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--color-secondary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  margin-bottom: 14px;
}

.feature-card h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.feature-card p {
  margin: 0;
  color: var(--color-ink-soft);
  font-size: 0.92rem;
}

/* Terms summary box on home */
.terms-box {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 34px;
  box-shadow: var(--shadow-card);
}

.terms-box ol {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 12px;
}

.terms-box ol li {
  color: var(--color-ink-soft);
}

.terms-box ol li strong {
  color: var(--color-ink);
}

.terms-more {
  margin-top: 22px;
  text-align: center;
}

/* FAQ accordion */
.faq-list {
  display: grid;
  gap: 14px;
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 22px;
  font-weight: 700;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  font-size: 1.3rem;
  color: var(--color-primary);
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item .faq-answer {
  padding: 0 22px 20px;
  color: var(--color-ink-soft);
  font-size: 0.95rem;
}

/* CTA band */
.cta-band {
  background: linear-gradient(120deg, var(--color-secondary), var(--color-secondary-dark));
  border-radius: var(--radius-lg);
  padding: 44px;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.cta-band h2 {
  margin: 0 0 8px;
  font-size: 1.6rem;
}

.cta-band p {
  margin: 0;
  opacity: 0.92;
  max-width: 46ch;
}

.cta-band .btn-primary {
  background: #fff;
  color: var(--color-secondary-dark);
}

.cta-band .btn-primary:hover {
  background: var(--color-accent);
  color: var(--color-ink);
}

/* ---------- Legal / content pages ---------- */
.page-hero {
  padding: 48px 0 30px;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
}

.breadcrumbs {
  font-size: 0.85rem;
  color: var(--color-ink-soft);
  margin-bottom: 14px;
}

.breadcrumbs a {
  text-decoration: none;
  color: var(--color-ink-soft);
  font-weight: 600;
}

.breadcrumbs a:hover {
  color: var(--color-primary);
}

.page-hero h1 {
  font-size: clamp(1.8rem, 3.4vw, 2.4rem);
  margin: 0 0 10px;
  letter-spacing: -0.02em;
}

.page-hero .updated {
  color: var(--color-ink-soft);
  font-size: 0.9rem;
}

.legal-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 50px 20px 70px;
}

.legal-content h2 {
  font-size: 1.3rem;
  margin: 36px 0 12px;
  letter-spacing: -0.01em;
}

.legal-content h2:first-child {
  margin-top: 0;
}

.legal-content p {
  color: var(--color-ink-soft);
  margin: 0 0 14px;
}

.legal-content ul,
.legal-content ol {
  color: var(--color-ink-soft);
  padding-left: 22px;
  display: grid;
  gap: 8px;
  margin: 0 0 14px;
}

.legal-content strong {
  color: var(--color-ink);
}

.info-callout {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-secondary);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  margin: 20px 0;
  font-size: 0.92rem;
  color: var(--color-ink-soft);
}

.warning-callout {
  background: #f5edff;
  border: 1px solid #ddc4f7;
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  margin: 20px 0;
  font-size: 0.92rem;
  color: var(--color-ink-soft);
}

/* Contact page */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.contact-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 26px;
  text-align: center;
  box-shadow: var(--shadow-card);
}

.contact-card .feature-icon {
  margin: 0 auto 14px;
}

.contact-card h3 {
  margin: 0 0 6px;
}

.contact-card p {
  color: var(--color-ink-soft);
  margin: 0 0 4px;
  font-size: 0.92rem;
}

/* About page */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 26px;
}

.stat-box {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px;
  text-align: center;
}

.stat-box strong {
  display: block;
  font-size: 1.5rem;
  color: var(--color-primary);
}

.stat-box span {
  font-size: 0.8rem;
  color: var(--color-ink-soft);
}

/* ---------- Footer ---------- */
.site-footer {
  background: #1c1e22;
  color: #cfd3d9;
  padding: 54px 0 24px;
  margin-top: 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 34px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .brand {
  color: #fff;
}

.footer-brand p {
  font-size: 0.88rem;
  color: #9ba0a8;
  margin: 14px 0 0;
  max-width: 32ch;
}

.footer-col h4 {
  color: #fff;
  font-size: 0.92rem;
  margin: 0 0 16px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.footer-col a {
  text-decoration: none;
  color: #b7bbc2;
  font-size: 0.92rem;
  transition: color 0.15s ease;
}

.footer-col a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: #82868e;
}

.age-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.08);
  padding: 6px 12px;
  border-radius: 999px;
  font-weight: 700;
  color: #e6e8eb;
}

/* ---------- AMP landing page ---------- */
.amp-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: radial-gradient(circle at 12% 10%, #ede4fd 0%, transparent 45%),
    radial-gradient(circle at 88% 15%, #e6e6fb 0%, transparent 50%), var(--color-bg);
}

.amp-header {
  padding: 22px 0;
}

.amp-header .container {
  display: flex;
  justify-content: center;
}

.amp-main {
  flex: 1;
  display: flex;
  align-items: center;
  padding: 20px 0 50px;
}

.amp-card {
  width: 100%;
  max-width: 640px;
  margin: 0 auto;
  padding: 0 20px;
  text-align: center;
}

.amp-banner {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  margin-bottom: 30px;
  border: 1px solid var(--color-border);
}

.amp-banner img {
  width: 100%;
  height: auto;
  display: block;
}

.amp-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.amp-actions .btn {
  min-width: 200px;
}

.amp-note {
  font-size: 0.85rem;
  color: var(--color-ink-soft);
}

.amp-footer {
  padding: 22px 0;
  border-top: 1px solid var(--color-border);
}

.amp-footer .container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.82rem;
  color: var(--color-ink-soft);
  text-align: center;
}

.amp-footer a {
  color: var(--color-ink-soft);
  text-decoration: none;
  font-weight: 600;
}

.amp-footer a:hover {
  color: var(--color-primary);
}

.amp-footer .age-badge {
  background: var(--color-bg-alt);
  color: var(--color-primary-dark);
}

@media (max-width: 480px) {
  .amp-actions {
    flex-direction: column;
  }

  .amp-actions .btn {
    width: 100%;
  }
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }

  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 680px) {
  .main-nav {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px;
    gap: 16px;
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-140%);
    transition: transform 0.2s ease;
  }

  .main-nav.open {
    transform: translateY(0);
  }

  .nav-toggle {
    display: block;
  }

  .steps-grid,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .cta-band {
    flex-direction: column;
    text-align: center;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }
}