/* Kolenu Landing Page — Warm, traditional, inclusive */
/* Palette from app theme: meadow (olive, cream, tan) */

:root {
  --color-primary: #7B9B6D;
  --color-primary-dark: #5a7a4f;
  --color-secondary: #B8956B;
  --color-secondary-dark: #9a7a52;
  --color-surface: #FFFBF7;
  --color-surface-alt: #F5F0E8;
  --color-surface-warm: #F5EDE0;
  --color-text: #2C2825;
  --color-text-muted: #5C564E;
  --color-outline: #A89F94;
  --font-serif: 'Libre Baskerville', Georgia, serif;
  --font-sans: 'Source Sans 3', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius: 12px;
  --shadow: 0 4px 20px rgba(44, 40, 37, 0.08);
  --shadow-hover: 0 8px 30px rgba(44, 40, 37, 0.12);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-surface);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 251, 247, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(168, 159, 148, 0.2);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--color-text);
  font-weight: 600;
  font-size: 1.25rem;
}

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

.nav-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

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

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

/* Hero */
.hero {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4rem 1.5rem;
  background: linear-gradient(180deg, var(--color-surface-warm) 0%, var(--color-surface) 50%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(123, 155, 109, 0.08) 0%, transparent 60%);
  pointer-events: none;
}

.hero-content {
  max-width: 640px;
  text-align: center;
  position: relative;
}

.hero-logo {
  border-radius: 24px;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow);
}

.hero-headline {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.25;
  margin: 0 0 1rem;
  color: var(--color-text);
}

.hero-subheadline {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  margin: 0 0 1rem;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.hero-taglines {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin: 0 0 2rem;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(1rem, 3vw, 1.5rem);
  justify-content: center;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: clamp(0.875rem, 3vw, 1rem) clamp(1.5rem, 4vw, 2rem);
  font-family: var(--font-sans);
  font-size: clamp(1rem, 2.5vw, 1.0625rem);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius);
  transition: transform 0.2s, box-shadow 0.2s;
  border: none;
  cursor: pointer;
  min-height: 48px;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-hover);
}

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

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

.btn-secondary {
  background: var(--color-secondary);
  color: white;
}

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

.btn-tertiary {
  background: var(--color-surface-alt);
  color: var(--color-text);
  border: 2px solid var(--color-outline);
}

.btn-tertiary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

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

.btn-ghost:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-large {
  padding: clamp(1rem, 4vw, 1.25rem) clamp(1.5rem, 5vw, 2.5rem);
  font-size: clamp(1.0625rem, 2.5vw, 1.25rem);
  min-height: 56px;
}

/* Sections */
.section {
  padding: clamp(3rem, 8vw, 5rem) 1.5rem;
}

.section-alt {
  background: var(--color-surface-alt);
  border-top: 1px solid rgba(168, 159, 148, 0.15);
  border-bottom: 1px solid rgba(168, 159, 148, 0.15);
}

.container {
  max-width: 720px;
  margin: 0 auto;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  margin: 0 0 1rem;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin: 0 0 1rem;
}

.section-lead {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  margin: 0 0 1.5rem;
  line-height: 1.65;
}

.feature-list {
  margin: 0 0 1.5rem;
  padding-left: 1.5rem;
}

.feature-list li {
  margin-bottom: 0.5rem;
}

.about-note,
.volunteer-note {
  font-style: italic;
  color: var(--color-text-muted);
  margin: 1.5rem 0;
}

.about-reason {
  color: var(--color-text-muted);
  margin: 0 0 1rem;
  font-size: 1rem;
  line-height: 1.65;
}

.about-continuity {
  font-style: italic;
  color: var(--color-text-muted);
  margin: 0 0 1.5rem;
  font-size: 1rem;
}

.about-open {
  color: var(--color-text-muted);
  margin: 0;
  font-size: 0.9375rem;
}

.trust-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1rem 0;
}

.trust-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.75rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text);
  background: rgba(123, 155, 109, 0.12);
  border: 1px solid rgba(123, 155, 109, 0.25);
  border-radius: 999px;
}

.about-github {
  margin: 0;
  font-size: 0.9375rem;
}

.about-github a {
  color: var(--color-primary);
  text-decoration: none;
}

.about-github a:hover {
  text-decoration: underline;
}

.volunteer-value-lead {
  margin: 1rem 0 0.5rem;
  font-size: 1rem;
}

.volunteer-value-list {
  margin: 0 0 1.5rem;
  padding-left: 1.5rem;
}

.volunteer-value-list li {
  margin-bottom: 0.35rem;
}

.volunteer-valuable {
  margin: 1rem 0 0.5rem;
}

.valuable-list {
  margin: 0 0 1.5rem;
  padding-left: 1.5rem;
}

.support-note {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin: 1rem 0 1.5rem;
}

.legal-note {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: 1.5rem;
  padding: 1rem;
  background: rgba(123, 155, 109, 0.08);
  border-radius: var(--radius);
  border-left: 4px solid var(--color-primary);
}

/* Audience grid */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.audience-card {
  background: var(--color-surface);
  padding: 1.25rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s;
}

.audience-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.audience-icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 0.5rem;
}

.audience-card p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-text);
}

/* Download CTA */
.download-cta {
  background: linear-gradient(180deg, var(--color-surface) 0%, var(--color-surface-warm) 100%);
}

.download-buttons {
  margin-top: 1rem;
}

.privacy-summary {
  font-size: 0.9rem;
  color: var(--color-muted, #666);
  margin-top: 0.5rem;
}

.privacy-summary a {
  color: var(--color-primary, #2d5a27);
  text-decoration: underline;
}

.download-note {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: 1rem;
}

/* Footer */
.site-footer {
  padding: 2.5rem 1.5rem;
  text-align: center;
  background: var(--color-text);
  color: rgba(255, 251, 247, 0.9);
}

.site-footer p {
  margin: 0.5rem 0;
  font-size: 0.9375rem;
}

.site-footer a {
  color: var(--color-secondary);
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

.footer-tagline {
  font-size: 0.8125rem;
  color: rgba(255, 251, 247, 0.7);
  margin-top: 0.25rem;
}

/* Legal pages */
.legal-page {
  padding: 4rem 1.5rem;
}

.legal-page .container {
  max-width: 640px;
}

.legal-intro {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}

.legal-page h1 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  margin: 0 0 0.5rem;
}

.legal-page h2 {
  font-family: var(--font-sans);
  font-size: 1.125rem;
  font-weight: 600;
  margin: 2rem 0 0.5rem;
}

.legal-page h3 {
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  margin: 1.5rem 0 0.5rem;
}

.legal-page p,
.legal-page ul {
  margin: 0 0 1rem;
  font-size: 0.9375rem;
  line-height: 1.65;
}

.legal-page ul {
  padding-left: 1.5rem;
}

.legal-page blockquote {
  margin: 0.5rem 0 1rem;
  padding: 0.75rem 1rem;
  background: var(--color-surface-alt);
  border-left: 4px solid var(--color-primary);
  font-style: italic;
  color: var(--color-text-muted);
}

.contribute-cta {
  margin-top: 2.5rem;
  text-align: center;
}

.support-divider {
  margin: 2rem 0;
  border: none;
  border-top: 1px solid var(--color-outline);
}

/* Mobile-first: stacked layout, bigger touch targets */
@media (max-width: 640px) {
  .nav-links {
    gap: 1rem;
  }

  .hero {
    min-height: auto;
    padding: 3rem 1.25rem;
  }

  .hero-buttons {
    flex-direction: column;
    gap: 1rem;
  }

  .hero-buttons .btn {
    width: 100%;
    min-height: 52px;
  }

  .section {
    padding: 3rem 1.25rem;
  }

  .audience-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .container {
    padding: 0 0.5rem;
  }
}

@media (max-width: 480px) {
  .nav-links {
    display: none;
  }
}