/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --green-dark: #0d4a2e;
  --green-mid: #1a6b44;
  --green-bright: #2d9a5f;
  --green-light: #4fc87d;
  --teal: #0e7490;
  --ocean: #0c4a6e;
  --sand: #f5f0e8;
  --white: #ffffff;
  --text: #1a2e1e;
  --text-muted: #4a6356;
  --font: 'Inter', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
}

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

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
}
.btn-primary {
  background: var(--green-bright);
  color: white;
}
.btn-primary:hover { background: var(--green-light); transform: translateY(-1px); }
.btn-secondary {
  background: var(--teal);
  color: white;
}
.btn-secondary:hover { background: #0e8aac; transform: translateY(-1px); }
.btn-ghost {
  background: transparent;
  color: white;
  border: 2px solid rgba(255,255,255,0.5);
}
.btn-ghost:hover { border-color: white; background: rgba(255,255,255,0.1); }
.btn-nav {
  background: var(--green-bright);
  color: white;
  padding: 10px 22px;
  font-size: 0.9rem;
}
.btn-donate {
  background: var(--green-bright);
  color: white;
  width: 100%;
  text-align: center;
  padding: 16px;
  font-size: 1.1rem;
  border-radius: 12px;
  margin-top: 8px;
}
.btn-donate:hover { background: var(--green-light); transform: translateY(-1px); }

/* ===== NAV ===== */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 48px;
  position: absolute;
  top: 0; left: 0; right: 0;
  z-index: 10;
}
.nav-logo {
  font-size: 1.2rem;
  font-weight: 700;
  color: white;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  color: rgba(255,255,255,0.85);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.2s;
}
.nav-links a:hover { color: white; }

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  background:
    linear-gradient(160deg, rgba(13,74,46,0.92) 0%, rgba(12,74,110,0.85) 100%),
    url('kina-barren-bluff.png') center/cover no-repeat;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  padding: 120px 24px 80px;
}

.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  color: white;
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero-content h1 {
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 800;
  color: white;
  line-height: 1.1;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 1.2rem;
  color: rgba(255,255,255,0.8);
  max-width: 580px;
  margin: 0 auto 36px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

.hero-counter {
  display: flex;
  align-items: center;
  gap: 0;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 16px;
  padding: 24px 40px;
  gap: 40px;
}
.counter-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.counter-num {
  font-size: 2.2rem;
  font-weight: 800;
  color: white;
  line-height: 1;
}
.counter-label {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.65);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 4px;
}
.counter-divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,0.2);
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  color: rgba(255,255,255,0.5);
  font-size: 1.4rem;
  animation: bounce 2s infinite;
}
@keyframes bounce {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(8px); }
}

/* ===== SECTIONS ===== */
.section { padding: 100px 0; }
.section-dark { background: var(--green-dark); color: white; }
.section-light { background: var(--sand); }
.section-green {
  background: linear-gradient(135deg, var(--green-mid) 0%, var(--ocean) 100%);
  color: white;
}

.section-tag {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  opacity: 0.6;
  margin-bottom: 12px;
}
.section h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 48px;
  line-height: 1.2;
}
.section-sub {
  font-size: 1.1rem;
  opacity: 0.8;
  max-width: 560px;
  margin: -30px auto 48px;
  text-align: center;
}
.section-dark .section-tag,
.section-green .section-tag { color: var(--green-light); opacity: 1; }
.section-light .section-tag { color: var(--green-bright); opacity: 1; }

/* ===== WHY GRID ===== */
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}
.why-card {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  padding: 32px;
}
.why-icon { font-size: 2rem; margin-bottom: 16px; }
.why-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; }
.why-card p { font-size: 0.95rem; opacity: 0.75; line-height: 1.6; }

/* ===== TRACKS ===== */
.tracks {
  display: flex;
  align-items: center;
  gap: 32px;
  margin-bottom: 64px;
  flex-wrap: wrap;
  justify-content: center;
}
.track {
  flex: 1;
  min-width: 280px;
  max-width: 420px;
  background: white;
  border-radius: 20px;
  padding: 40px;
  box-shadow: 0 4px 32px rgba(0,0,0,0.08);
  text-align: center;
}
.track-icon { font-size: 2.5rem; margin-bottom: 16px; }
.track h3 { font-size: 1.4rem; font-weight: 700; margin-bottom: 12px; color: var(--text); }
.track p { color: var(--text-muted); margin-bottom: 20px; line-height: 1.6; }
.track-price { font-size: 1rem; color: var(--text-muted); margin-bottom: 24px; }
.track-price strong { color: var(--green-bright); font-size: 1.3rem; }
.track-divider {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-muted);
  opacity: 0.5;
}

/* ===== STEPS ===== */
.steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}
.step {
  display: flex;
  align-items: center;
  gap: 12px;
  background: white;
  border-radius: 12px;
  padding: 16px 20px;
  box-shadow: 0 2px 16px rgba(0,0,0,0.06);
}
.step-num {
  width: 32px; height: 32px;
  background: var(--green-bright);
  color: white;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  flex-shrink: 0;
}
.step-text { display: flex; flex-direction: column; }
.step-text strong { font-size: 0.9rem; }
.step-text span { font-size: 0.78rem; color: var(--text-muted); }
.step-arrow { color: var(--text-muted); font-size: 1.2rem; opacity: 0.4; }

/* ===== DONATE ===== */
.donate-tabs {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 32px;
}
.tab {
  padding: 12px 28px;
  border-radius: 50px;
  border: 2px solid rgba(255,255,255,0.3);
  background: transparent;
  color: rgba(255,255,255,0.7);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  font-family: var(--font);
}
.tab.active, .tab:hover {
  background: rgba(255,255,255,0.15);
  color: white;
  border-color: rgba(255,255,255,0.6);
}

.donate-panel {
  max-width: 480px;
  margin: 0 auto;
}
.donate-panel.hidden { display: none; }

.amount-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}
.amount {
  background: rgba(255,255,255,0.1);
  border: 2px solid rgba(255,255,255,0.2);
  border-radius: 12px;
  padding: 14px 8px;
  color: white;
  font-family: var(--font);
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.amount span {
  font-size: 0.7rem;
  font-weight: 400;
  opacity: 0.7;
}
.amount.active, .amount:hover {
  background: rgba(255,255,255,0.25);
  border-color: white;
}

.custom-amount {
  width: 100%;
  padding: 14px 16px;
  border-radius: 12px;
  border: 2px solid rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.1);
  color: white;
  font-size: 1rem;
  font-family: var(--font);
  margin-bottom: 16px;
  outline: none;
}
.custom-amount::placeholder { color: rgba(255,255,255,0.4); }
.custom-amount:focus { border-color: rgba(255,255,255,0.6); }

.donate-note {
  text-align: center;
  font-size: 0.8rem;
  opacity: 0.5;
  margin-top: 20px;
}

/* ===== PARTNERS ===== */
.partners-grid {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
}
.partner-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  background: white;
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: 16px;
  padding: 36px 48px;
  box-shadow: 0 2px 16px rgba(0,0,0,0.06);
  transition: all 0.2s;
  min-width: 220px;
  text-align: center;
}
.partner-card:hover { transform: translateY(-3px); box-shadow: 0 8px 32px rgba(0,0,0,0.1); }
.partner-icon { font-size: 2.5rem; }
.partner-card strong { font-size: 1rem; color: var(--text); }
.partner-card span { font-size: 0.85rem; color: var(--text-muted); }

/* ===== FOOTER ===== */
.footer {
  background: var(--green-dark);
  color: white;
  text-align: center;
  padding: 64px 24px;
}
.footer-logo { font-size: 1.3rem; font-weight: 700; margin-bottom: 12px; }
.footer p { opacity: 0.6; font-size: 0.9rem; margin-bottom: 24px; }
.footer-links {
  display: flex;
  gap: 32px;
  justify-content: center;
  margin-bottom: 24px;
}
.footer-links a {
  color: var(--green-light);
  font-size: 0.9rem;
  transition: opacity 0.2s;
}
.footer-links a:hover { opacity: 0.7; }
.footer-small { font-size: 0.8rem; opacity: 0.35; }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .nav { padding: 20px 24px; }
  .nav-links { gap: 16px; }
  .nav-links a:not(.btn-nav) { display: none; }
  .hero-counter { gap: 20px; padding: 20px 24px; }
  .amount-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { flex-direction: column; }
  .step-arrow { transform: rotate(90deg); }
}