/* ============================================================
   CSS Reset
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ============================================================
   Design Tokens
   ============================================================ */
:root {
  --sky-deep:         #050709;
  --sky-lift:         #0A0E14;
  --champagne:        #F4EAD8;
  --champagne-dim:    #B8B0A0;
  --champagne-faint:  #6B665D;
  --amber:            #E8B568;
  --purple:           #9381FF;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'Inter', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', 'Fira Code', monospace;

  --nav-height: 64px;
}

/* ============================================================
   Base
   ============================================================ */
html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  font-size: 16px;
}

body {
  background-color: var(--sky-deep);
  color: var(--champagne);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

/* ============================================================
   Typography
   ============================================================ */
.display {
  font-family: var(--font-display);
  font-weight: 300;
  line-height: 1.15;
}

.eyebrow {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

/* ============================================================
   Layout Utilities
   ============================================================ */
.container {
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.15;
  margin-bottom: 0.5rem;
}

.section-subtitle {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  color: var(--champagne-dim);
  max-width: 620px;
  line-height: 1.7;
}

/* ============================================================
   Section Layout
   ============================================================ */
section,
footer {
  padding: 80px 0;
}

section:nth-of-type(even) {
  background-color: var(--sky-lift);
}

#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background-color: var(--sky-deep);
  position: relative;
  overflow: hidden;
  padding: 80px 0;
}

/* ============================================================
   Hero Content
   ============================================================ */
.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1.5rem;
}

.hero-logo {
  width: 120px;
  height: 120px;
  object-fit: contain;
  border-radius: 24px;
}

.hero-eyebrow {
  color: var(--amber);
}

.hero-headline {
  font-size: clamp(2.75rem, 7vw, 5rem);
  max-width: 700px;
}

.hero-subheadline {
  font-size: 1.0625rem;
  color: var(--champagne-dim);
  max-width: 580px;
  line-height: 1.75;
}

/* ============================================================
   Star Twinkle Animation
   ============================================================ */
@keyframes twinkle {
  0%, 100% { opacity: 0.15; transform: scale(1); }
  50%       { opacity: 0.8;  transform: scale(1.4); }
}

#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1px 1px at 12%  8%,  var(--champagne-faint) 100%, transparent),
    radial-gradient(1px 1px at 87%  5%,  var(--champagne-faint) 100%, transparent),
    radial-gradient(1.5px 1.5px at 34% 18%, var(--amber) 100%, transparent),
    radial-gradient(1px 1px at 63% 12%,  var(--champagne-faint) 100%, transparent),
    radial-gradient(1px 1px at 76% 30%,  var(--champagne-faint) 100%, transparent),
    radial-gradient(1px 1px at 22% 42%,  var(--champagne-faint) 100%, transparent),
    radial-gradient(1px 1px at 50% 65%,  var(--champagne-faint) 100%, transparent),
    radial-gradient(1.5px 1.5px at 91% 55%, var(--amber) 100%, transparent),
    radial-gradient(1px 1px at  5% 72%,  var(--champagne-faint) 100%, transparent),
    radial-gradient(1px 1px at 44% 88%,  var(--champagne-faint) 100%, transparent),
    radial-gradient(1px 1px at 70% 80%,  var(--champagne-faint) 100%, transparent),
    radial-gradient(1.5px 1.5px at 18% 92%, var(--amber) 100%, transparent),
    radial-gradient(1px 1px at 83% 92%,  var(--champagne-faint) 100%, transparent),
    radial-gradient(1px 1px at 56% 35%,  var(--champagne-faint) 100%, transparent),
    radial-gradient(1px 1px at 29% 58%,  var(--champagne-faint) 100%, transparent);
  animation: twinkle 4s ease-in-out infinite;
  pointer-events: none;
  z-index: 0;
}

#hero .container {
  position: relative;
  z-index: 1;
}

/* ============================================================
   Navigation
   ============================================================ */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(5, 7, 9, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(244, 234, 216, 0.06);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
}

.nav-brand {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  color: var(--champagne);
  text-transform: uppercase;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  font-size: 0.875rem;
  color: var(--champagne-dim);
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--amber);
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--champagne);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

/* Hamburger open state */
.nav-hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-hamburger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav-hamburger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================================
   Button
   ============================================================ */
.cta-button {
  display: inline-block;
  background: var(--amber);
  color: var(--sky-deep);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9375rem;
  padding: 0.75rem 1.75rem;
  border-radius: 100px;
  border: none;
  cursor: pointer;
  transition: box-shadow 0.25s, transform 0.15s;
  text-decoration: none;
}

.cta-button:hover {
  box-shadow: 0 0 18px rgba(232, 181, 104, 0.45);
  transform: translateY(-1px);
}

.cta-button:active {
  transform: translateY(0);
}

/* ============================================================
   Features Section
   ============================================================ */
#features .section-title {
  margin-bottom: 2.5rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.feature-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(244, 234, 216, 0.08);
  border-radius: 12px;
  padding: 1.75rem;
  transition: border-color 0.25s;
}

.feature-card:hover {
  border-color: rgba(244, 234, 216, 0.16);
}

.feature-card--pro {
  border-color: rgba(147, 129, 255, 0.22);
  background: rgba(147, 129, 255, 0.04);
}

.feature-card--pro:hover {
  border-color: rgba(147, 129, 255, 0.4);
}

.feature-icon {
  width: 36px;
  height: 36px;
  color: var(--amber);
  margin-bottom: 1rem;
}

.feature-card--pro .feature-icon {
  color: var(--purple);
}

.feature-title {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  color: var(--champagne);
  margin-bottom: 0.5rem;
}

.feature-card--pro .feature-title {
  color: var(--purple);
}

.feature-desc {
  font-size: 0.9375rem;
  color: var(--champagne-dim);
  line-height: 1.65;
}

/* ============================================================
   Policy Sections (Privacy & Terms)
   ============================================================ */
.policy-date {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--champagne-faint);
  letter-spacing: 0.06em;
  margin-bottom: 2.5rem;
}

.policy-content {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.policy-section p {
  font-size: 0.9375rem;
  color: var(--champagne-dim);
  line-height: 1.75;
}

.policy-heading {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  color: var(--champagne);
  margin-bottom: 0.5rem;
}

.policy-link {
  color: var(--amber);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: opacity 0.2s;
}

.policy-link:hover {
  opacity: 0.8;
}

/* ============================================================
   Contact Section
   ============================================================ */
.contact-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1.5rem;
}

.contact-copy {
  font-size: 1.0625rem;
  color: var(--champagne-dim);
  max-width: 480px;
  line-height: 1.75;
}

/* ============================================================
   Footer
   ============================================================ */
footer {
  border-top: 1px solid rgba(244, 234, 216, 0.06);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.footer-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  object-fit: contain;
}

.footer-brand-name {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.08em;
  color: var(--champagne-faint);
  text-transform: uppercase;
}

.footer-copy {
  font-size: 0.8125rem;
  color: var(--champagne-faint);
}

.footer-nav {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.8125rem;
  color: var(--champagne-faint);
}

.footer-nav a {
  color: var(--champagne-faint);
  transition: color 0.2s;
}

.footer-nav a:hover {
  color: var(--champagne);
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 767px) {
  section,
  footer {
    padding: 40px 0;
  }

  #hero {
    min-height: 100svh;
    padding: 40px 0;
  }

  .nav-hamburger {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: rgba(5, 7, 9, 0.97);
    border-bottom: 1px solid rgba(244, 234, 216, 0.08);
    padding: 0.5rem 1.5rem 1rem;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links li {
    width: 100%;
  }

  .nav-links a {
    display: block;
    padding: 0.6rem 0;
    font-size: 1rem;
  }

  .section-title {
    font-size: 2rem;
  }

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

@media (min-width: 768px) and (max-width: 1023px) {
  .section-title {
    font-size: 2.75rem;
  }

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