:root {
  --bg: #ffffff;
  --black: #0f0f0f;
  --gray: #6f6f6f;
  --light: #f7f7f7;
}

/* DARK MODE */
body.dark {
  --bg: #0f0f0f;
  --black: #f2f2f2;
  --gray: #a0a0a0;
  --light: #1a1a1a;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: Inter, system-ui, sans-serif;
  color: var(--black);
  background: var(--bg);
  line-height: 1.7;
  transition: background 0.3s ease, color 0.3s ease;
}

/* NAVBAR */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  padding: 20px 60px;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(8px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
}

body.dark .navbar {
  background: rgba(15, 15, 15, 0.85);
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  font-size: 26px;
}

.brand-name {
  font-weight: 800;
  letter-spacing: 1px;
}

.brand-tagline {
  display: block;
  font-size: 11px;
  color: var(--gray);
}

nav a {
  margin-left: 24px;
  text-decoration: none;
  color: var(--black);
  font-size: 14px;
}

.nav-cta {
  border: 1px solid var(--black);
  padding: 8px 14px;
  border-radius: 20px;
}

/* HERO */
.hero {
  padding: 200px 20px 160px;
  text-align: center;
}

.hero h1 {
  font-size: 72px;
  font-weight: 900;
}

.hero-lead {
  margin-top: 20px;
  font-size: 20px;
  color: var(--gray);
}

.hero-body {
  margin: 40px auto;
  max-width: 700px;
  color: var(--gray);
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
}

/* BUTTONS */
.btn {
  text-decoration: none;
  padding: 14px 26px;
  border-radius: 30px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.3px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all .3s ease;
}

.primary {
  background: var(--black);
  color: #fff;
}

.primary:hover {
  transform: translateY(-2px);
  opacity: 0.95;
}

.outline {
  background: transparent;
  border: 1px solid var(--black);
  color: var(--black);
}

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

.large {
  font-size: 16px;
  padding: 18px 36px;
}

/* DARK MODE BUTTON FIXES */
body.dark .primary {
  background: #f2f2f2;
  color: #000;
}

body.dark .outline {
  border-color: #f2f2f2;
  color: #f2f2f2;
}

body.dark .outline:hover {
  background: #f2f2f2;
  color: #000;
}

/* SECTIONS */
.section {
  padding: 120px 20px;
}

.section.light {
  background: var(--light);
}

.section-inner {
  max-width: 900px;
  margin: auto;
  text-align: center;
}

.section h2 {
  font-size: 36px;
  margin-bottom: 30px;
}

.section p {
  margin-bottom: 18px;
  color: var(--gray);
}

/* VALUES */
.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.value-card {
  background: #fff;
  padding: 40px;
  border-radius: 20px;
}

body.dark .value-card {
  background: #141414;
}

/* DONATION */
.donation-box {
  margin-top: 40px;
  background: var(--light);
  padding: 40px;
  border-radius: 20px;
}

body.dark .donation-box {
  background: #141414;
}

.donation-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 14px;
}

.donation-status {
  margin-top: 20px;
  font-size: 14px;
  color: var(--gray);
}

/* FINAL CTA */
.final-cta {
  background: var(--black);
  color: #fff;
  padding: 140px 20px;
  text-align: center;
}

body.dark .final-cta {
  background: #000;
}

.final-cta p {
  max-width: 600px;
  margin: 20px auto 40px;
  color: #ccc;
}

/* FOOTER */
.footer {
  padding: 60px 20px;
  text-align: center;
}

.footer-note {
  font-size: 13px;
  color: var(--gray);
}

/* ANIMATIONS */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: 0.9s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* THEME TOGGLE */
.theme-toggle {
  margin-left: 24px;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 16px;
  transition: transform 0.2s ease;
}

.theme-toggle:hover {
  transform: scale(1.2);
}

/* ROADMAP */
.roadmap-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.roadmap-card {
  background: #fff;
  padding: 40px;
  border-radius: 20px;
  text-align: left;
}

body.dark .roadmap-card {
  background: #141414;
}

.roadmap-card h3 {
  margin: 10px 0 14px;
}

.roadmap-card ul {
  padding-left: 18px;
}

.roadmap-card li {
  margin-bottom: 10px;
  color: var(--gray);
  font-size: 14px;
}

.phase {
  font-size: 12px;
  letter-spacing: 1px;
  font-weight: 700;
  color: var(--gray);
}

/* ROADMAP STATUS */
.roadmap-card.completed {
  border: 1px solid rgba(0, 0, 0, 0.08);
}

body.dark .roadmap-card.completed {
  border-color: rgba(255, 255, 255, 0.08);
}

.roadmap-card.current {
  border: 2px solid var(--black);
}

body.dark .roadmap-card.current {
  border-color: #f2f2f2;
}

.roadmap-card.upcoming {
  opacity: 0.6;
}