:root {
  --bg: #0b1220;
  --bg-elevated: #121c2e;
  --surface: #1a2740;
  --text: #e8edf5;
  --text-muted: #9aa8be;
  --accent: #3dd6c6;
  --accent-strong: #22b8a8;
  --warm: #f59e5e;
  --border: rgba(255, 255, 255, 0.08);
  --shadow: 0 24px 48px rgba(0, 0, 0, 0.35);
  --radius: 16px;
  --radius-sm: 10px;
  --font-sans: "DM Sans", system-ui, sans-serif;
  --font-display: "Outfit", system-ui, sans-serif;
  --header-h: 72px;
  --max: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 1000;
  padding: 0.75rem 1rem;
  background: var(--accent);
  color: var(--bg);
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  background: rgba(11, 18, 32, 0.82);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: var(--header-h);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  text-decoration: none;
  margin-right: auto;
}

.brand img {
  border-radius: 10px;
}

.site-nav {
  display: flex;
  gap: 1.5rem;
}

.site-nav a {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.95rem;
  text-decoration: none;
  transition: color 0.2s;
}

.site-nav a:hover {
  color: var(--text);
  text-decoration: none;
}

.lang-switch {
  display: flex;
  background: var(--surface);
  border-radius: 999px;
  padding: 3px;
  border: 1px solid var(--border);
}

.lang-btn {
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-family: inherit;
  font-weight: 600;
  font-size: 0.8rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

.lang-btn.is-active {
  background: var(--accent);
  color: var(--bg);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  cursor: pointer;
}

.nav-toggle-bar,
.nav-toggle-bar::before,
.nav-toggle-bar::after {
  display: block;
  width: 20px;
  height: 2px;
  margin: 0 auto;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.2s;
}

.nav-toggle-bar::before,
.nav-toggle-bar::after {
  content: "";
  margin-top: 5px;
}

.nav-toggle-bar::after {
  margin-top: 5px;
}

/* Hero */
.hero {
  position: relative;
  padding: 4rem 0 5rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 20%, rgba(61, 214, 198, 0.15), transparent),
    radial-gradient(ellipse 50% 40% at 10% 80%, rgba(245, 158, 94, 0.08), transparent);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
}

.badge {
  display: inline-block;
  margin: 0 0 1rem;
  padding: 0.35rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(61, 214, 198, 0.12);
  border: 1px solid rgba(61, 214, 198, 0.25);
  border-radius: 999px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.12;
  margin: 0 0 1rem;
  letter-spacing: -0.02em;
}

.hero .lead {
  color: var(--text-muted);
  font-size: 1.15rem;
  max-width: 36ch;
  margin: 0 0 1.75rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero-visual {
  position: relative;
}

.hero-banner {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.35rem;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: var(--bg);
  box-shadow: 0 8px 24px rgba(61, 214, 198, 0.25);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

/* Sections */
.section {
  padding: 4.5rem 0;
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  margin: 0 0 0.5rem;
}

.section-head .section-lead,
.section-head p {
  color: var(--text-muted);
  font-size: 1.15rem;
  margin: 0;
}

.prose {
  color: var(--text-muted);
  max-width: 65ch;
}

.about {
  background: var(--bg-elevated);
  border-block: 1px solid var(--border);
}

.pillars {
  display: grid;
  gap: 1.25rem;
  margin-top: 2.5rem;
}

@media (min-width: 768px) {
  .pillars {
    grid-template-columns: repeat(3, 1fr);
  }
}

.pillar {
  padding: 1.5rem;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.pillar h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin: 0 0 0.5rem;
  color: var(--accent);
}

.pillar p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* Product */
.product-grid {
  display: grid;
  gap: 2.5rem;
  align-items: start;
}

@media (min-width: 900px) {
  .product-grid {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

.product-card {
  padding: 2rem;
  background: var(--bg-elevated);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.product-logo {
  width: 96px;
  margin-bottom: 1rem;
}

.product-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.tag {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.3rem 0.65rem;
  background: rgba(245, 158, 94, 0.15);
  color: var(--warm);
  border-radius: 6px;
}

.tagline {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--accent);
}

.product-card h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  margin: 0 0 1rem;
}

.mission-quote {
  margin: 1.5rem 0;
  padding: 1.25rem 1.5rem;
  border-left: 3px solid var(--accent);
  background: rgba(61, 214, 198, 0.06);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--text);
}

.audience {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.donation-box {
  margin-top: 1.5rem;
  padding: 1.25rem;
  background: var(--surface);
  border-radius: var(--radius-sm);
  border: 1px dashed rgba(61, 214, 198, 0.35);
}

.donation-box h3 {
  font-size: 1rem;
  margin: 0 0 0.5rem;
  color: var(--warm);
}

.donation-box p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.glow-card {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  background: var(--surface);
}

.glow-card::before {
  content: "";
  display: block;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--warm));
}

.product-visual img {
  width: 100%;
}

/* Features */
.features {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 2rem;
}

.feature {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s;
}

.feature.is-open {
  border-color: rgba(61, 214, 198, 0.35);
}

.feature-trigger {
  width: 100%;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1rem;
  align-items: center;
  padding: 1.25rem 1.5rem;
  border: none;
  background: transparent;
  color: inherit;
  font-family: inherit;
  text-align: left;
  cursor: pointer;
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(61, 214, 198, 0.12);
  color: var(--accent);
}

.feature-icon svg {
  width: 22px;
  height: 22px;
}

.feature-head h3 {
  margin: 0 0 0.2rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
}

.feature-head p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.feature-chevron {
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--text-muted);
  border-bottom: 2px solid var(--text-muted);
  transform: rotate(45deg);
  transition: transform 0.2s;
}

.feature.is-open .feature-chevron {
  transform: rotate(-135deg);
  margin-top: 6px;
}

.feature-panel {
  padding: 0 1.5rem 1.25rem 5.5rem;
}

.feature-panel ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.feature-panel li + li {
  margin-top: 0.5rem;
}

.feature-remember {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--warm);
  background: rgba(245, 158, 94, 0.1);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--warm);
}

/* Support */
.support-inner {
  text-align: center;
  padding: 3rem 2rem;
  background: linear-gradient(145deg, var(--surface), var(--bg-elevated));
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.support-inner h2 {
  font-family: var(--font-display);
  margin: 0 0 0.75rem;
}

.support-inner p {
  color: var(--text-muted);
  max-width: 50ch;
  margin: 0 auto 1.5rem;
}

/* Footer */
.site-footer {
  padding: 2.5rem 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  text-align: center;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.footer-inner p {
  margin: 0.25rem 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.copyright {
  margin-top: 1rem !important;
  font-size: 0.8rem !important;
  opacity: 0.7;
}

/* Mobile nav */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    flex-direction: column;
    padding: 1.5rem;
    gap: 1rem;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.25s, opacity 0.25s;
  }

  .site-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .feature-panel {
    padding-left: 1.5rem;
  }
}