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

/* ── TOKENS: TEMA CLARO (defecto) ── */
:root {
  --blue:    #1a73e8;
  --blue-dk: #1558b0;
  --red:     #e53935;

  --bg:      #f8fafc;
  --surface: #ffffff;
  --text:    #1e293b;
  --muted:   #64748b;
  --border:  #e2e8f0;

  --hero-bg:    linear-gradient(160deg, #e8f0fe 0%, #f8fafc 60%);
  --mockup-bg:  linear-gradient(180deg, #eef2ff 0%, #f8fafc 100%);
  --gallery-bg: #f1f5f9;
  --cta-bg:     linear-gradient(160deg, #e8f0fe 0%, #f8fafc 100%);
  --nav-bg:     rgba(255,255,255,0.92);

  --phone-body: #1e293b;
  --phone-notch: #334155;
}

/* ── TOKENS: TEMA OSCURO ── */
[data-theme="dark"] {
  --bg:      #0f172a;
  --surface: #1e293b;
  --text:    #f1f5f9;
  --muted:   #94a3b8;
  --border:  #334155;

  --hero-bg:    linear-gradient(160deg, #1a2744 0%, #0f172a 60%);
  --mockup-bg:  linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
  --gallery-bg: #020617;
  --cta-bg:     linear-gradient(160deg, #1e293b 0%, #0f172a 100%);
  --nav-bg:     rgba(15,23,42,0.92);

  --phone-body: #0f172a;
  --phone-notch: #1e293b;
}

/* ── BASE ── */
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  transition: background 0.3s, color 0.3s;
}

/* ── NAV ── */
nav {
  position: sticky; top: 0; z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
  display: flex; align-items: center; justify-content: space-between;
  height: 60px;
  transition: background 0.3s, border-color 0.3s;
}
.nav-logo {
  font-weight: 700; font-size: 1.1rem; color: var(--blue);
  display: flex; align-items: center; gap: 0.5rem;
}
.nav-logo .dot { color: var(--red); }
.nav-icon {
  width: 28px; height: 28px;
  object-fit: contain;
}
.nav-right { display: flex; align-items: center; gap: 0.75rem; }

nav a.btn-sm {
  background: var(--blue); color: #fff;
  padding: 0.4rem 1.1rem; border-radius: 6px;
  text-decoration: none; font-size: 0.875rem; font-weight: 600;
  transition: background 0.2s;
}
nav a.btn-sm:hover { background: var(--blue-dk); }

#theme-toggle {
  background: var(--surface);
  border: 1.5px solid var(--border);
  color: var(--text);
  width: 36px; height: 36px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1rem;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.2s, border-color 0.2s;
}
#theme-toggle:hover { background: var(--border); }

/* ── HERO ── */
.hero {
  text-align: center;
  padding: 5rem 1.5rem 4rem;
  background: var(--hero-bg);
}
.badge {
  display: inline-block;
  background: var(--surface); color: var(--blue);
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.05em;
  padding: 0.3rem 0.9rem; border-radius: 999px;
  margin-bottom: 1.5rem;
  border: 1px solid var(--border);
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800; line-height: 1.15;
  margin-bottom: 1.2rem;
}
.hero h1 span { color: var(--blue); }
.hero > p:not(.version-chip) {
  font-size: 1.1rem; color: var(--muted);
  max-width: 540px; margin: 0 auto 2.5rem;
}
.hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.8rem 1.8rem; border-radius: 10px;
  font-size: 1rem; font-weight: 700; text-decoration: none;
  transition: transform 0.15s, box-shadow 0.15s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,0,0,0.18); }
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-dk); }
.btn-outline {
  background: var(--surface); color: var(--text);
  border: 1.5px solid var(--border);
}
.version-chip {
  display: block;
  width: fit-content;
  margin: 2.5rem auto 0;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  background: var(--surface);
  border: 1.5px solid var(--border);
  padding: 0.45rem 1.1rem;
  border-radius: 999px;
}

/* ── PHONE FRAME ── */
.phone-frame {
  position: relative;
  background: var(--phone-body);
  border-radius: 44px;
  display: inline-flex;
  flex-direction: column;
  align-items: stretch;
  box-shadow: 0 40px 100px rgba(0,0,0,0.35), 0 0 0 1px rgba(255,255,255,0.06);
  transition: background 0.3s;
  overflow: hidden;
}
.phone-frame--lg { width: 260px; padding: 14px; }
.phone-frame--sm { width: 170px; padding: 10px; }

.phone-frame__notch {
  position: absolute;
  top: 0; left: 50%; transform: translateX(-50%);
  background: var(--phone-body);
  border-radius: 0 0 14px 14px;
  z-index: 2;
  transition: background 0.3s;
}
.phone-frame--lg .phone-frame__notch { width: 80px; height: 22px; top: 14px; }
.phone-frame--sm .phone-frame__notch { width: 54px; height: 14px; top: 10px; }

.phone-frame img {
  width: 100%;
  border-radius: 32px;
  display: block;
}
.phone-frame--sm img { border-radius: 22px; }

/* ── MOCKUP SECTION ── */
.mockup-section {
  display: flex; justify-content: center;
  padding: 2rem 1.5rem 5rem;
  background: var(--mockup-bg);
}

/* ── STATS STRIP ── */
.stats {
  display: flex; flex-wrap: wrap; justify-content: center;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  transition: background 0.3s, border-color 0.3s;
}
.stat {
  flex: 1; min-width: 160px;
  padding: 2rem 1rem; text-align: center;
  border-right: 1px solid var(--border);
}
.stat:last-child { border-right: none; }
.stat-value { font-size: 2rem; font-weight: 800; color: var(--blue); }
.stat-label { font-size: 0.8rem; color: var(--muted); margin-top: 0.2rem; }

/* ── FEATURES ── */
.features {
  padding: 5rem 1.5rem;
  max-width: 900px; margin: 0 auto;
}
.section-label {
  text-align: center;
  font-size: 0.78rem; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--blue);
  margin-bottom: 0.6rem;
}
.section-title {
  text-align: center;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800; margin-bottom: 3rem;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.2rem;
}
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.5rem;
  transition: box-shadow 0.2s, transform 0.2s, background 0.3s, border-color 0.3s;
}
.feature-card:hover {
  box-shadow: 0 8px 30px rgba(0,0,0,0.12);
  transform: translateY(-3px);
}
.feature-icon { font-size: 1.8rem; margin-bottom: 0.8rem; }
.feature-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 0.4rem; }
.feature-card p  { font-size: 0.875rem; color: var(--muted); }

/* ── GALLERY ── */
.gallery {
  background: var(--gallery-bg);
  padding: 5rem 0;
  overflow: hidden;
  transition: background 0.3s;
}
.gallery .section-label,
.gallery .section-title {
  padding: 0 1.5rem;
}
.gallery-scroll {
  display: flex;
  gap: 2rem;
  padding: 2.5rem 2rem 1rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  justify-content: center;
  flex-wrap: wrap;
}
.gallery-scroll::-webkit-scrollbar { display: none; }

.gallery-item {
  scroll-snap-align: start;
  display: flex; flex-direction: column; align-items: center;
  gap: 1rem; flex-shrink: 0;
}
.gallery-item figcaption {
  font-size: 0.875rem; font-weight: 600; color: var(--muted);
}

/* ── CTA ── */
.cta {
  text-align: center;
  padding: 5rem 1.5rem;
  background: var(--cta-bg);
  transition: background 0.3s;
}
.cta-icon {
  width: 72px; height: 72px;
  object-fit: contain;
  margin-bottom: 1.5rem;
  filter: drop-shadow(0 8px 24px rgba(26,115,232,0.3));
}
.cta h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; margin-bottom: 1rem; }
.cta > p { color: var(--muted); max-width: 460px; margin: 0 auto 2rem; }

.btn-play {
  display: inline-block;
  transition: transform 0.15s, box-shadow 0.15s;
  border-radius: 8px;
  overflow: hidden;
}
.btn-play:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,0,0,0.2); }
.play-badge {
  display: block;
  height: 60px;
  width: auto;
}

/* ── FOOTER ── */
footer {
  text-align: center;
  padding: 2rem 1.5rem;
  font-size: 0.8rem; color: var(--muted);
  border-top: 1px solid var(--border);
  background: var(--surface);
  transition: background 0.3s, border-color 0.3s;
}
footer a { color: var(--blue); text-decoration: none; }