/* ── Reset & Base ──────────────────────────────────────────────────── */

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

/* ── Custom Properties ────────────────────────────────────────────── */

:root {
  /* Typography */
  --font-display: 'Outfit', sans-serif;
  --font-body: 'Source Sans 3', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Spacing */
  --nav-height: 64px;
  --container-width: 1080px;
  --section-padding: 120px 0;
}

/* Dark theme (default) */
[data-theme="dark"] {
  --bg-primary: #0d0d0d;
  --bg-secondary: #1a1a1a;
  --bg-terminal: #0a0a0a;
  --text-primary: #e8e4de;
  --text-secondary: #9a9590;
  --accent: #d4a246;
  --accent-hover: #e6b654;
  --card-bg: #161616;
  --border: rgba(255, 255, 255, 0.06);
  --border-strong: rgba(255, 255, 255, 0.1);
  --nav-bg: rgba(13, 13, 13, 0.8);
  --install-bg: #111111;
  --terminal-border: rgba(255, 255, 255, 0.06);
  --terminal-header-bg: rgba(255, 255, 255, 0.03);
  --terminal-text: #e8e4de;
  --terminal-dot-bg: rgba(255, 255, 255, 0.1);
  --install-text: #e8e4de;
  --install-border: rgba(255, 255, 255, 0.08);
}

/* Light theme */
[data-theme="light"] {
  --bg-primary: #faf8f5;
  --bg-secondary: #f0ede8;
  --bg-terminal: #f5f3f0;
  --text-primary: #1a1a1a;
  --text-secondary: #6b6560;
  --accent: #b8862e;
  --accent-hover: #a07528;
  --card-bg: #ffffff;
  --border: rgba(0, 0, 0, 0.06);
  --border-strong: rgba(0, 0, 0, 0.1);
  --nav-bg: rgba(250, 248, 245, 0.8);
  --install-bg: #edeae5;
  --terminal-border: rgba(0, 0, 0, 0.08);
  --terminal-header-bg: rgba(0, 0, 0, 0.03);
  --terminal-text: #1a1a1a;
  --terminal-dot-bg: rgba(0, 0, 0, 0.1);
  --install-text: #1a1a1a;
  --install-border: rgba(0, 0, 0, 0.08);
}

html {
  scroll-snap-type: y proximity;
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--accent-hover);
}

code, pre {
  font-family: var(--font-mono);
}

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

.section {
  scroll-snap-align: start;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  text-align: center;
  margin-bottom: 64px;
}

/* ── Nav ──────────────────────────────────────────────────────────── */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s;
}

.nav.scrolled {
  border-bottom-color: var(--border-strong);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.nav-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-primary);
}

.nav-brand:hover {
  color: var(--text-primary);
}

.nav-version {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  opacity: 0.7;
  margin-top: 3px;
  margin-left: -2px;
}

.nav-icon {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

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

.theme-toggle {
  background: none;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  padding: 6px;
  cursor: pointer;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s, border-color 0.2s;
}

.theme-toggle:hover {
  color: var(--text-primary);
  border-color: var(--accent);
}

.theme-toggle svg {
  transition: transform 0.3s ease;
}

[data-theme="dark"] .icon-sun { display: none; }
[data-theme="dark"] .icon-moon { display: block; }
[data-theme="light"] .icon-sun { display: block; }
[data-theme="light"] .icon-moon { display: none; }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  padding: 6px;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  transition: color 0.2s, border-color 0.2s;
}

.nav-icon-btn:hover {
  color: var(--text-primary);
  border-color: var(--accent);
}

.nav-sponsor-btn {
  color: #db61a2;
}

.nav-sponsor-btn:hover {
  color: #bf4b8b;
  border-color: #db61a2;
}

.nav-mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
}

.nav-mobile-toggle .icon-close { display: none; }
.nav-mobile-toggle.open .icon-menu { display: none; }
.nav-mobile-toggle.open .icon-close { display: block; }

/* ── Hero ─────────────────────────────────────────────────────────── */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--nav-height) 24px 0;
}

.hero-content {
  text-align: center;
  max-width: 640px;
  width: 100%;
}

.hero-title {
  font-size: clamp(3.5rem, 8vw, 6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  color: var(--text-secondary);
  margin-bottom: 48px;
  font-weight: 400;
}

.install-box {
  margin: 0 auto 20px;
  max-width: min(520px, 100%);
}

.install-box-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--install-bg);
  border: 1px solid var(--install-border);
  border-radius: 12px;
  padding: 14px 16px;
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.install-prompt {
  color: var(--accent);
  user-select: none;
  flex-shrink: 0;
}

.install-cmd {
  color: var(--install-text);
  flex: 1;
  min-width: 0;
  overflow-x: auto;
  white-space: nowrap;
}

.install-cmd::after {
  content: '▋';
  animation: blink 1s step-end infinite;
  color: var(--accent);
  margin-left: 2px;
}

@keyframes blink {
  50% { opacity: 0; }
}

.copy-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  padding: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s;
  flex-shrink: 0;
}

.copy-btn:hover {
  color: var(--install-text);
}

.copy-btn .icon-check {
  display: none;
  color: #4ade80;
}

.copy-btn.copied .icon-clipboard { display: none; }
.copy-btn.copied .icon-check { display: block; }

.hero-platforms {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.hero-windows {
  margin-top: 6px;
  font-size: 0.8rem;
}

.hero-windows a {
  color: var(--accent);
  font-weight: 500;
}

.hero-windows a:hover {
  color: var(--accent-hover);
}

/* ── How It Works ─────────────────────────────────────────────────── */

.how-it-works {
  background: var(--bg-secondary);
  padding: var(--section-padding);
  padding-top: calc(var(--nav-height) + 80px);
  overflow-x: hidden;
}

.timeline {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.step {
  display: flex;
  gap: 24px;
  align-items: flex-start;
}

.step-number {
  flex-shrink: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(3rem, 5vw, 4rem);
  line-height: 1;
  background: linear-gradient(to top, var(--accent), transparent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  min-width: 48px;
  text-align: center;
  margin-top: -4px;
}

.step-content {
  flex: 1;
  min-width: 0;
  width: 100%;
  overflow: hidden;
}

.step-content h3 {
  font-size: 1.35rem;
  margin-bottom: 6px;
}

.step-content p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  font-size: 0.95rem;
}

/* ── Terminal Block ───────────────────────────────────────────────── */

.terminal {
  background: var(--bg-terminal);
  border: 1px solid var(--terminal-border);
  border-radius: 10px;
  overflow: hidden;
  min-width: 0;
  max-width: 100%;
}

.terminal-header {
  display: flex;
  gap: 6px;
  padding: 10px 14px;
  background: var(--terminal-header-bg);
  border-bottom: 1px solid var(--terminal-border);
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--terminal-dot-bg);
}

.terminal pre {
  padding: 16px;
  overflow-x: auto;
  max-width: 100%;
  font-size: 0.8rem;
  line-height: 1.65;
}

.terminal code {
  color: var(--terminal-text);
}

.t-prompt { color: var(--accent); user-select: none; }
.t-output { color: var(--text-secondary); }
.t-accent { color: var(--accent); }
.t-string { color: #a8cc8c; }
.t-comment { color: #5c5c5c; }
.t-success { color: #4ade80; font-weight: 500; }

/* Light mode terminal syntax overrides */
[data-theme="light"] .t-string { color: #3a7d22; }
[data-theme="light"] .t-comment { color: #8a8580; }
[data-theme="light"] .t-success { color: #1a8a40; }

/* ── Pricing ──────────────────────────────────────────────────────── */

.pricing {
  padding: var(--section-padding);
  padding-top: calc(var(--nav-height) + 80px);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  max-width: 800px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--card-bg);
  border: 1px solid var(--border-strong);
  border-radius: 16px;
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

.pricing-card--free {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.pricing-card-header h3 {
  font-size: 1.75rem;
  margin-bottom: 4px;
}

.pricing-audience {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.pricing-description {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 24px;
  line-height: 1.5;
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
  flex: 1;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
}

.pricing-features svg {
  color: var(--accent);
  flex-shrink: 0;
}

.pricing-cta {
  margin-top: auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: 10px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.2s;
  cursor: pointer;
  text-decoration: none;
  width: 100%;
}

.btn--free {
  background: var(--accent);
  border: 1px solid var(--accent);
  color: #0d0d0d;
}

.btn--free:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: #0d0d0d;
}

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

.btn--contribute:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ── Footer ───────────────────────────────────────────────────────── */

.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 48px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-copyright {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.85rem;
  transition: color 0.2s;
}

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

.footer-license {
  font-size: 0.8rem;
}

.footer-license a {
  color: var(--text-secondary);
}

.footer-license a:hover {
  color: var(--text-primary);
}

/* ── Scroll Reveal ────────────────────────────────────────────────── */

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ── Responsive ───────────────────────────────────────────────────── */

@media (max-width: 768px) {
  :root {
    --section-padding: 80px 0;
  }

  .nav.menu-open {
    height: 100dvh;
    background: var(--bg-primary);
  }

  .nav.menu-open .nav-inner {
    height: var(--nav-height);
  }

  .nav-links {
    display: flex;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-primary);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 32px;
    padding: var(--nav-height) 24px 24px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
  }

  .nav-links.open {
    opacity: 1;
    visibility: visible;
  }

  .nav-links a {
    font-size: 1.5rem;
    font-family: var(--font-display);
    font-weight: 600;
    color: var(--text-primary);
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.3s ease, transform 0.3s ease, color 0.2s;
  }

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

  .nav-links.open a:nth-child(1) { transition-delay: 0.05s; }
  .nav-links.open a:nth-child(2) { transition-delay: 0.1s; }
  .nav-links.open a:nth-child(3) { transition-delay: 0.15s; }

  .nav-mobile-toggle {
    display: flex;
  }

  .nav-actions {
    margin-left: auto;
    position: relative;
    z-index: 1;
  }

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

  .pricing-card {
    padding: 32px 20px;
  }

  .step {
    flex-direction: column;
    gap: 12px;
  }

  .terminal pre {
    font-size: 0.7rem;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
    gap: 12px;
  }

  .hero-title {
    font-size: clamp(2.5rem, 10vw, 4rem);
  }

  .install-box-inner {
    font-size: 0.75rem;
    padding: 12px 14px;
    gap: 8px;
  }
}

@media (max-width: 480px) {
  .install-box-inner {
    font-size: 0.65rem;
  }

  .section-title {
    margin-bottom: 40px;
  }

  .consent-actions {
    flex-direction: column;
  }

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

/* ── Consent Banner ──────────────────────────────────────────────── */

.consent-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  padding: 16px 24px;
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--border-strong);
  transform: translateY(100%);
  animation: consent-slide-up 0.4s ease forwards;
}

.consent-banner.hidden {
  animation: consent-slide-down 0.3s ease forwards;
  pointer-events: none;
}

@keyframes consent-slide-up {
  from { transform: translateY(100%); }
  to   { transform: translateY(0); }
}

@keyframes consent-slide-down {
  from { transform: translateY(0); opacity: 1; }
  to   { transform: translateY(100%); opacity: 0; }
}

.consent-banner-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.consent-text {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.5;
  flex: 1;
}

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

.consent-actions {
  display: flex;
  gap: 10px;
  flex-shrink: 0;
}

.consent-btn {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

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

.consent-btn--reject:hover {
  border-color: var(--text-secondary);
  color: var(--text-primary);
}

.consent-btn--accept {
  background: var(--accent);
  border: 1px solid var(--accent);
  color: #0d0d0d;
}

.consent-btn--accept:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

@media (max-width: 768px) {
  .consent-banner-inner {
    flex-direction: column;
    text-align: center;
    gap: 14px;
  }

  .consent-text {
    font-size: 0.8rem;
  }

  .consent-actions {
    width: 100%;
    justify-content: center;
  }
}