/* ============================================================
   Meditación — estilos
   Paleta verde eucalipto · responsive · respeta el modo del sistema
   ============================================================ */

:root {
  --bg: #f4faf4;
  --surface: #ffffff;
  --surface-alt: #e9f3ea;
  --primary: #2f5d46;
  --primary-deep: #234433;
  --accent: #7fb069;
  --accent-soft: #dcebdd;
  --text: #22332a;
  --text-muted: #5c6f62;
  --ad-bg: rgba(127, 176, 105, 0.08);
  --ad-border: #9db89f;
  --radius: 16px;
  --shadow: 0 4px 18px rgba(47, 93, 70, 0.10);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1712;
    --surface: #182219;
    --surface-alt: #1f2c21;
    --primary: #a8d5a2;
    --primary-deep: #c4e6bd;
    --accent: #7fb069;
    --text: #e9f2e9;
    --text-muted: #a9bfa9;
    --ad-bg: rgba(127, 176, 105, 0.10);
    --ad-border: #4a6b52;
    --shadow: 0 4px 18px rgba(0, 0, 0, 0.35);
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

/* ---------- Encabezado ---------- */

.hero {
  background: linear-gradient(160deg, var(--primary-deep), var(--primary));
  color: #f2f8f2;
  padding-bottom: 0;
  position: relative;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  max-width: 1080px;
  margin: 0 auto;
  padding: 1rem 1.25rem;
}

.brand { font-weight: 700; font-size: 1.15rem; }

.nav-links { display: flex; gap: 1rem; flex-wrap: wrap; }

.nav-links a {
  color: #f2f8f2;
  text-decoration: none;
  font-size: 0.95rem;
  opacity: 0.9;
}

.nav-links a:hover { opacity: 1; text-decoration: underline; }

.hero-content {
  text-align: center;
  padding: 3rem 1.25rem 4.5rem;
  max-width: 720px;
  margin: 0 auto;
}

.hero-content h1 {
  font-size: clamp(2.4rem, 6vw, 3.6rem);
  margin: 0 0 0.5rem;
  letter-spacing: 0.5px;
}

.tagline { font-size: 1.15rem; opacity: 0.92; margin: 0 0 1.75rem; }

.hero-waves { display: block; width: 100%; height: 70px; margin-bottom: -1px; }
.hero-waves path { fill: var(--bg); }

/* ---------- Botones ---------- */

.btn {
  display: inline-block;
  background: var(--accent);
  color: #10241a;
  font-weight: 700;
  border: none;
  border-radius: 999px;
  padding: 0.7rem 1.6rem;
  font-size: 1rem;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, filter 0.15s ease;
}

.btn:hover { filter: brightness(1.06); transform: translateY(-1px); }
.btn:disabled { opacity: 0.45; cursor: default; transform: none; }

.btn-ghost {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

/* ---------- Secciones ---------- */

main { max-width: 1080px; margin: 0 auto; padding: 0 1.25rem; }

.section { padding: 2.5rem 0; }

.section h2 {
  color: var(--primary);
  font-size: clamp(1.5rem, 4vw, 2rem);
  margin: 0 0 0.25rem;
}

.section-intro { color: var(--text-muted); margin: 0 0 1.75rem; }

.section.alt {
  background: var(--surface-alt);
  border-radius: var(--radius);
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* ---------- Espacios para anuncios ---------- */

.ad-slot {
  margin: 2rem auto;
  padding: 1.4rem 1rem;
  text-align: center;
  background: var(--ad-bg);
  border: 2px dashed var(--ad-border);
  border-radius: var(--radius);
  color: var(--text-muted);
  font-size: 0.9rem;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.ad-banner { max-width: 970px; min-height: 90px; }
.ad-infeed { min-height: 200px; display: flex; align-items: center; justify-content: center; }

/* ---------- Consejos ---------- */

.tips-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.tip-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transition: transform 0.15s ease;
}

.tip-card:hover { transform: translateY(-3px); }

.tip-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--surface-alt);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.9rem;
}

.tip-icon svg { width: 28px; height: 28px; }

.tip-card h3 { margin: 0 0 0.5rem; font-size: 1.1rem; color: var(--primary); }
.tip-card p { margin: 0; color: var(--text-muted); font-size: 0.96rem; }

/* ---------- Respiración guiada ---------- */

.breath-box {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem 1.5rem;
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
}

.breath-controls { margin-bottom: 1.25rem; font-size: 1.05rem; }

.breath-controls select {
  font-size: 1rem;
  padding: 0.35rem 0.7rem;
  border-radius: 10px;
  border: 2px solid var(--accent);
  background: var(--bg);
  color: var(--text);
  margin-left: 0.4rem;
}

.breath-stage {
  position: relative;
  width: 220px;
  height: 220px;
  margin: 0 auto 1.25rem;
}

.breath-circle {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, var(--accent), var(--primary));
  opacity: 0.85;
  transform: scale(0.55);
}

.breath-text {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #fff;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.35);
  font-weight: 700;
  font-size: 1.35rem;
  pointer-events: none;
}

.breath-count { font-size: 1rem; font-weight: 400; opacity: 0.95; }

.breath-status { min-height: 1.6em; color: var(--text-muted); margin: 0 0 1.25rem; }

.breath-buttons { display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap; }

/* ---------- Rutina y consejos rápidos ---------- */

.steps { padding-left: 1.25rem; max-width: 640px; }
.steps li { margin-bottom: 0.85rem; }
.steps li::marker { color: var(--primary); font-weight: 700; }

.quick-grid {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.quick-grid li {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 1.1rem 1.25rem;
  box-shadow: var(--shadow);
  font-size: 0.97rem;
}

.quick-grid li::before { content: "⚡ "; }

/* ---------- Videos ---------- */

.videos-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.video-card { margin: 0; }

.video-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  background: #000;
}

.video-wrap iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-card figcaption {
  margin-top: 0.6rem;
  font-size: 0.95rem;
  color: var(--text-muted);
  text-align: center;
}

/* ---------- Sobre este sitio ---------- */

.about { text-align: center; }
.about p { max-width: 620px; margin: 0 auto; font-size: 1.08rem; }

/* ---------- Pie ---------- */

footer {
  text-align: center;
  padding: 2.5rem 1.25rem 2rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .tips-grid { grid-template-columns: 1fr; }
  .videos-grid { grid-template-columns: 1fr; }
  .quick-grid { grid-template-columns: 1fr; }
  .nav { justify-content: center; }
  .section.alt { padding-left: 1rem; padding-right: 1rem; }
}