/* =========================================
   Jauto Landing Page
   Design language inspired by laplatareporta.com
   Dark theme · Bold typography · Clean sections
   ========================================= */

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

:root {
  --bg: #121111;
  --bg-elevated: #1e1d1d;
  --bg-card: #181717;
  --border: #2c2b2b;
  --border-hover: #3a3939;
  --text: #f0f0f0;
  --text-secondary: #999;
  --text-muted: #666;
  --accent: #4263eb;
  --accent-hover: #3b5bdb;
  --nav-bg: rgba(18, 17, 17, 0.88);
  --automaton-state-fill: rgba(255, 255, 255, 0.03);
  --automaton-text: #fff;
  --automaton-label: #aaa;
  --code-bg: rgba(255, 255, 255, 0.06);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

[data-theme="light"] {
  --bg: #f8f8f8;
  --bg-elevated: #ffffff;
  --bg-card: #ffffff;
  --border: #e2e2e2;
  --border-hover: #ccc;
  --text: #111;
  --text-secondary: #555;
  --text-muted: #888;
  --accent: #4263eb;
  --accent-hover: #3b5bdb;
  --nav-bg: rgba(248, 248, 248, 0.85);
  --automaton-state-fill: rgba(0, 0, 0, 0.03);
  --automaton-text: #111;
  --automaton-label: #555;
  --code-bg: rgba(0, 0, 0, 0.05);
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

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

.btn [data-lucide] {
  width: 20px;
  height: 20px;
}

.feature-card__icon [data-lucide] {
  width: 28px;
  height: 28px;
}

.download-card__icon [data-lucide] {
  width: 40px;
  height: 40px;
}

.theme-toggle [data-lucide] {
  width: 18px;
  height: 18px;
}

code {
  font-family: "SF Mono", "Fira Code", "Consolas", monospace;
  background: var(--code-bg);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── NAV ── */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}

.nav--scrolled {
  border-bottom-color: var(--border);
}

.nav__inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  display: flex;
  align-items: center;
}

.nav__logo-img {
  display: block;
  height: 36px;
  width: auto;
  object-fit: contain;
}

.nav__links {
  display: flex;
  gap: 32px;
}

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

.nav__links a:hover {
  color: var(--text);
}

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

.nav__menu-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

.nav__mobile {
  display: none;
  flex-direction: column;
  padding: 16px 24px 24px;
  gap: 16px;
  border-top: 1px solid var(--border);
}

.nav__mobile a {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.nav__mobile.open {
  display: flex;
}

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

/* ── THEME TOGGLE ── */

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
}

.theme-toggle:hover {
  border-color: var(--border-hover);
  color: var(--text);
  background: var(--bg-elevated);
}

.theme-toggle__icon {
  position: absolute;
  transition: opacity var(--transition), transform var(--transition);
}

.theme-toggle__icon--light {
  opacity: 0;
  transform: rotate(-90deg) scale(0.5);
}

[data-theme="light"] .theme-toggle__icon--dark {
  opacity: 0;
  transform: rotate(90deg) scale(0.5);
}

[data-theme="light"] .theme-toggle__icon--light {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

/* ── HERO ── */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 80px;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 60% 50% at 50% 40%, black 20%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 60% 50% at 50% 40%, black 20%, transparent 100%);
}

.hero__content {
  position: relative;
  text-align: center;
  max-width: 720px;
}

.hero__badge {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: transparent;
  border: 1px solid rgba(66, 99, 235, 0.35);
  border-radius: 100px;
  padding: 6px 18px;
  margin-bottom: 32px;
}

.hero__title {
  margin: 0 0 24px;
  line-height: 0;
}

.hero__logo {
  display: block;
  margin: 0 auto;
  max-width: min(480px, 90vw);
  width: 100%;
  height: auto;
  object-fit: contain;
}

[data-theme="light"] .hero__grid {
  background-image:
    linear-gradient(rgba(0, 0, 0, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.05) 1px, transparent 1px);
}

.hero__subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 560px;
  margin: 0 auto 40px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero__scroll-hint {
  margin-top: 60px;
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  animation: bob 2s ease-in-out infinite;
}

@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

/* ── BUTTONS ── */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius);
  transition: all var(--transition);
  cursor: pointer;
  border: none;
}

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

.btn--primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
}

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

.btn--secondary:hover {
  border-color: var(--text-muted);
  background: rgba(255, 255, 255, 0.04);
  transform: translateY(-2px);
}

/* ── SECTIONS ── */

.section {
  padding: 120px 0;
}

.section__tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.section__title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 16px;
}

.section__desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 56px;
}

/* ── FEATURES ── */

.features {
  border-top: 1px solid var(--border);
}

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

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: all var(--transition);
}

.feature-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-elevated);
  transform: translateY(-4px);
}

.feature-card__icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--code-bg);
  color: var(--accent);
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ── ABOUT ── */

.about {
  border-top: 1px solid var(--border);
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about__text p {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 16px;
  line-height: 1.75;
}

.about__visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.about__automaton {
  width: 100%;
  max-width: 400px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}

.about__automaton svg {
  width: 100%;
  height: auto;
}

.about__automaton .state-text {
  fill: var(--automaton-text);
}

.about__automaton .label-text {
  fill: var(--automaton-label);
}

.about__automaton .state-neutral {
  fill: var(--automaton-state-fill);
}

/* ── DOWNLOAD ── */

.download {
  border-top: 1px solid var(--border);
}

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

.download-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: all var(--transition);
}

.download-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
}

.download-card--online:hover,
.download-card--windows:hover,
.download-card--mac:hover {
  border-color: var(--accent);
}

.download-card__icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  background: var(--code-bg);
  color: var(--accent);
  margin-bottom: 24px;
}

.download-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.download-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
  flex: 1;
}

.download-card__btn {
  display: inline-block;
  margin-top: 20px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
  transition: color var(--transition);
}

.download-card:hover .download-card__btn {
  color: var(--accent-hover);
}

.contributors-card__icon [data-lucide] {
  width: 22px;
  height: 22px;
}

.contributors-card {
  margin-top: 48px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 28px 32px;
  transition: border-color var(--transition);
}

.contributors-card:hover {
  border-color: var(--border-hover);
}

.contributors-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.contributors-card__title-block {
  display: flex;
  align-items: center;
  gap: 16px;
}

.contributors-card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--accent-glow);
  color: var(--accent);
  flex-shrink: 0;
}

.contributors-card__title {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}

.contributors-card__meta {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.contributors-card__cta {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
  transition: color var(--transition);
  white-space: nowrap;
  align-self: center;
}

.contributors-card__cta:hover {
  color: var(--accent-hover);
}

.contributors-card__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(132px, 1fr));
  gap: 12px;
}

.contributors-card__person {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 10px;
  padding: 16px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  transition: border-color var(--transition), transform var(--transition);
}

.contributors-card__person:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.contributors-card__avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border);
}

.contributors-card__name {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
  word-break: break-word;
  max-width: 100%;
  line-height: 1.35;
}

.contributors-card__commits {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.contributors-card__error {
  font-size: 0.88rem;
  color: var(--accent);
  margin-top: 8px;
}

/* ── FOOTER ── */

.footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
}

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

.footer__brand {
  display: flex;
  align-items: center;
}

.footer__logo {
  display: block;
  height: 28px;
  width: auto;
  object-fit: contain;
}

.footer__copy {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer__links {
  display: flex;
  gap: 24px;
}

.footer__links a {
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: color var(--transition);
}

.footer__links a:hover {
  color: var(--text);
}

/* ── RESPONSIVE ── */

@media (max-width: 900px) {
  .features__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .download__cards {
    grid-template-columns: 1fr;
    max-width: 420px;
  }
}

@media (max-width: 640px) {
  .nav__links {
    display: none;
  }

  .nav__menu-btn {
    display: flex;
  }

  .section {
    padding: 80px 0;
  }

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

  .hero {
    padding: 100px 20px 60px;
  }

  .footer__inner {
    flex-direction: column;
    text-align: center;
  }
}

/* ── SCROLL REVEAL ── */

.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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