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

:root {
  --bg: #0a0a0c;
  --bg-alt: #111116;
  --surface: #18181f;
  --border: #2a2a35;
  --text: #e8e8ed;
  --text-muted: #9a9aab;
  --accent: #c0c0d0;
  --accent-strong: #e0e0ea;
  --silver: #a8a8b8;
  --white: #ffffff;
  --radius: 12px;
  --max-width: 1100px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-weight: 600;
  line-height: 1.25;
  color: var(--white);
}

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

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

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 12, 0.9);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  color: var(--white);
}

.logo-img {
  height: 42px;
  width: auto;
  border-radius: 6px;
  object-fit: cover;
  border: 1px solid var(--border);
}

.logo-text {
  display: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 26px;
}

.nav-links a {
  font-size: 0.92rem;
  color: var(--text-muted);
  transition: color 0.2s;
}

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

.btn-nav {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: 8px;
  color: var(--white) !important;
  font-weight: 500;
}

.btn-nav:hover {
  background: #22222c;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  transition: 0.25s;
}

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 90px;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(40, 80, 160, 0.18), transparent),
    var(--bg);
}

.hero-content {
  max-width: 820px;
  text-align: center;
  margin: 0 auto;
}

.hero-logo-wrap {
  margin-bottom: 32px;
  display: flex;
  justify-content: center;
}

.hero-logo {
  width: min(420px, 90vw);
  height: auto;
  border-radius: 16px;
  object-fit: cover;
  border: 1px solid var(--border);
  box-shadow: 0 20px 60px rgba(0, 40, 100, 0.35);
}

.eyebrow {
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--silver);
  margin-bottom: 16px;
}

.hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.2rem);
  margin-bottom: 22px;
  letter-spacing: -0.02em;
}

.hero-sub {
  font-size: 1.12rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 36px;
}

.hero-sub strong {
  color: var(--text);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 24px;
  border-radius: 10px;
  font-weight: 550;
  font-size: 0.95rem;
  transition: all 0.2s;
  cursor: pointer;
}

.btn.primary {
  background: var(--white);
  color: #0a0a0c;
}

.btn.primary:hover {
  background: #d8d8e0;
}

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

.btn.secondary:hover {
  border-color: var(--silver);
  color: var(--white);
}

/* ===== Sections ===== */
.section {
  padding: 100px 0;
}

.section.alt {
  background: var(--bg-alt);
}

.section-header {
  margin-bottom: 48px;
  max-width: 680px;
}

.section-header h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  margin-bottom: 12px;
}

.section-desc {
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* ===== About ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 48px;
  align-items: start;
}

.about-text p {
  color: var(--text-muted);
  margin-bottom: 18px;
}

.about-text strong {
  color: var(--text);
}

.about-cards {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.info-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
}

.info-card h3 {
  font-size: 1.02rem;
  margin-bottom: 7px;
}

.info-card p {
  color: var(--text-muted);
  font-size: 0.93rem;
}

/* ===== Features ===== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-bottom: 32px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  transition: border-color 0.2s;
}

.feature-card:hover {
  border-color: #3a3a48;
}

.feature-icon {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--silver);
  margin-bottom: 14px;
  letter-spacing: 0.05em;
}

.feature-card h3 {
  font-size: 1.12rem;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.94rem;
}

.highlight-box {
  background: linear-gradient(135deg, #1a1a24 0%, #14141c 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
}

.highlight-box h3 {
  font-size: 1.15rem;
  margin-bottom: 12px;
}

.highlight-box p {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 820px;
}

/* ===== Two Column ===== */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.two-col h2 {
  font-size: 1.65rem;
  margin-bottom: 16px;
}

.two-col p {
  color: var(--text-muted);
  margin-bottom: 14px;
}

.two-col strong {
  color: var(--text);
}

/* ===== Impact ===== */
.impact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.impact-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
}

.impact-card h3 {
  font-size: 1.12rem;
  margin-bottom: 10px;
}

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

/* ===== Roadmap ===== */
.roadmap {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.roadmap-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
}

.roadmap-marker {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--silver);
  background: rgba(168, 168, 184, 0.12);
  padding: 5px 12px;
  border-radius: 6px;
  margin-bottom: 16px;
}

.roadmap-item h3 {
  font-size: 1.12rem;
  margin-bottom: 10px;
}

.roadmap-item p {
  color: var(--text-muted);
  font-size: 0.94rem;
}

/* ===== Contact ===== */
.contact-section {
  background: linear-gradient(180deg, var(--bg) 0%, #0e0e14 100%);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 40px;
}

.contact-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.contact-card h3 {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--silver);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 10px;
}

.contact-card a {
  color: var(--white);
  font-size: 1.05rem;
  transition: color 0.2s;
}

.contact-card a:hover {
  color: var(--silver);
}

.contact-card p {
  color: var(--text);
  font-size: 1.05rem;
  line-height: 1.5;
}

.contact-note {
  text-align: center;
  padding-top: 12px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.contact-note strong {
  color: var(--white);
  font-size: 1.05rem;
}

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  background: var(--bg);
}

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

.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  margin-bottom: 8px;
}

.footer-logo {
  width: min(280px, 70vw);
  height: auto;
  border-radius: 10px;
  object-fit: cover;
  border: 1px solid var(--border);
}

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

.footer-sub {
  margin-top: 6px;
  font-size: 0.85rem !important;
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .about-grid,
  .two-col,
  .feature-grid,
  .roadmap,
  .impact-grid {
    grid-template-columns: 1fr;
  }

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

  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 24px;
    gap: 18px;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: 0.3s;
  }

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

  .menu-toggle {
    display: flex;
  }

  .menu-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .hero {
    min-height: auto;
    padding: 110px 0 70px;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.85rem;
  }

  .section {
    padding: 70px 0;
  }
}

/* ===== Founding Supporter ===== */
.support-intro {
  max-width: 720px;
  margin-bottom: 40px;
}

.support-intro p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.support-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 36px;
}

.support-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
}

.support-card.featured {
  border-color: #4a4a5c;
  background: linear-gradient(180deg, #1c1c26 0%, #18181f 100%);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
}

.support-tier {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--silver);
  margin-bottom: 12px;
}

.support-card h3 {
  font-size: 1.25rem;
  margin-bottom: 8px;
}

.support-price {
  font-size: 1.05rem;
  color: var(--text);
  font-weight: 500;
  margin-bottom: 18px;
}

.support-card ul {
  list-style: none;
  margin-bottom: 24px;
  flex-grow: 1;
}

.support-card ul li {
  color: var(--text-muted);
  font-size: 0.93rem;
  padding: 6px 0;
  padding-left: 18px;
  position: relative;
}

.support-card ul li::before {
  content: "–";
  position: absolute;
  left: 0;
  color: var(--silver);
}

.support-btn {
  width: 100%;
  text-align: center;
}

.support-disclaimer {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 26px;
}

.support-disclaimer p {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.6;
}

.support-disclaimer strong {
  color: var(--text);
}

@media (max-width: 900px) {
  .support-grid {
    grid-template-columns: 1fr;
  }
}

.support-cta-box {
  background: linear-gradient(135deg, #1a1a28 0%, #14141f 100%);
  border: 1px solid #3a3a4c;
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  margin-bottom: 32px;
}

.support-cta-box h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.support-cta-box p {
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto 22px;
  font-size: 1rem;
}