/* ============================================================
   JOSE MARIA PALACIOS — Zen Modern CSS
   Paleta: fondos neutros cálidos, texto oscuro suave,
           acento índigo-pizarra, toques zen.
   ============================================================ */

/* ── Custom Properties ─────────────────────────────────────── */
:root {
  /* Fondos zen: cálidos, suaves, como papel de arroz */
  --clr-bg:          #0f0e0d;
  --clr-bg-alt:      #141310;
  --clr-surface:     #1c1a17;
  --clr-surface-2:   #252219;
  --clr-border:      rgba(210, 195, 170, 0.10);

  /* Acento: índigo-pizarra calmado, no agresivo */
  --clr-accent:      #8b7355;
  --clr-accent-2:    #c4a882;
  --clr-accent-glow: rgba(139, 115, 85, 0.25);
  --clr-accent-zen:  #6b8f7a; /* verde musgo, toque zen */

  /* Texto */
  --clr-text:        #e8e0d4;
  --clr-text-muted:  #9a8f80;
  --clr-white:       #f5f0ea;

  /* Tipografía */
  --font-sans:   'Inter', system-ui, sans-serif;
  --font-serif:  'Cormorant Garamond', Georgia, serif;

  /* Radios y sombras */
  --radius-sm:  6px;
  --radius-md:  14px;
  --radius-lg:  22px;
  --transition: 0.38s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-card: 0 8px 48px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 60px var(--clr-accent-glow);

  --max-w: 1100px;
}

/* ── Reset & Base ───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-sans);
  background-color: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a   { color: inherit; text-decoration: none; }
ul  { list-style: none; }

/* ── Utilidades ─────────────────────────────────────────────── */
.container        { width: 100%; max-width: var(--max-w); margin-inline: auto; padding-inline: 1.5rem; }
.container-narrow { max-width: 800px; }

/* ── Animaciones ────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(36px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes brushIn {
  from { opacity: 0; transform: scale(0.85) rotate(-8deg); }
  to   { opacity: 0.04; transform: scale(1) rotate(-4deg); }
}
@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}
@keyframes scrollLine {
  0%   { height: 0;    opacity: 1; }
  80%  { height: 56px; opacity: 1; }
  100% { height: 56px; opacity: 0; }
}
@keyframes particleDrift {
  0%   { transform: translateY(0) translateX(0); opacity: 0; }
  10%  { opacity: 0.7; }
  90%  { opacity: 0.7; }
  100% { transform: translateY(-100vh) translateX(var(--drift-x, 20px)); opacity: 0; }
}
@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 18px var(--clr-accent-glow); }
  50%       { box-shadow: 0 0 42px var(--clr-accent-glow), 0 0 70px var(--clr-accent-glow); }
}

[data-animate] {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.75s ease, transform 0.75s ease;
}
[data-animate].visible { opacity: 1; transform: translateY(0); }

/* ── Header / Navbar ────────────────────────────────────────── */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 1rem 1.5rem;
  transition: background var(--transition), backdrop-filter var(--transition), padding var(--transition);
}
.site-header.scrolled {
  background: rgba(15, 14, 13, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--clr-border);
  padding: 0.65rem 1.5rem;
}
.navbar {
  max-width: var(--max-w); margin-inline: auto;
  display: flex; align-items: center; justify-content: space-between; gap: 2rem;
}
.navbar-brand {
  display: flex; align-items: center; gap: 0.7rem;
  font-weight: 600; font-size: 0.82rem; letter-spacing: 0.12em;
  color: var(--clr-white); transition: opacity var(--transition);
}
.navbar-brand:hover { opacity: 0.75; }
.navbar-brand img {
  width: 42px; height: 42px; border-radius: 50%; object-fit: cover;
  border: 1.5px solid var(--clr-accent);
  transition: box-shadow var(--transition);
}
.navbar-brand:hover img { box-shadow: 0 0 0 4px var(--clr-accent-glow); }
.nav-links { display: flex; align-items: center; gap: 2rem; }
.nav-links a {
  font-size: 0.85rem; font-weight: 500; letter-spacing: 0.05em;
  color: var(--clr-text-muted); position: relative;
  transition: color var(--transition);
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -4px; left: 0;
  width: 0; height: 1px; background: var(--clr-accent-2);
  transition: width var(--transition);
}
.nav-links a:hover, .nav-links a.active { color: var(--clr-white); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-toggle {
  display: none; flex-direction: column; justify-content: center; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
  width: 36px; height: 36px;
}
.nav-toggle span {
  display: block; height: 1.5px; background: var(--clr-white);
  transition: transform var(--transition), opacity var(--transition), width var(--transition);
  width: 100%;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; width: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── Hero ───────────────────────────────────────────────────── */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  text-align: center; overflow: hidden;
  padding: 8rem 1.5rem 6rem;
  background:
    radial-gradient(ellipse 70% 55% at 50% 0%,   rgba(139,115,85,0.14) 0%, transparent 70%),
    radial-gradient(ellipse 50% 40% at 80% 85%,  rgba(107,143,122,0.10) 0%, transparent 60%),
    var(--clr-bg);
}
.hero-particles { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }

/* Carácter zen de fondo */
.zen-brushstroke {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-serif);
  font-size: clamp(18rem, 40vw, 32rem);
  color: var(--clr-white);
  animation: brushIn 1.8s ease both;
  pointer-events: none; user-select: none;
  line-height: 1;
}

.hero-content { position: relative; z-index: 2; max-width: 860px; }

/* Cita de apertura zen */
.hero-koan {
  display: flex; flex-direction: column; align-items: center; gap: 0.2rem;
  margin-bottom: 2rem;
  animation: fadeUp 1s ease both;
}
.koan-line {
  font-family: var(--font-serif); font-size: 1rem; font-style: italic;
  color: var(--clr-accent-zen); letter-spacing: 0.15em;
}
.koan-sub {
  font-size: 0.72rem; font-weight: 500; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--clr-text-muted);
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 9vw, 7rem);
  font-weight: 600; line-height: 1.02; letter-spacing: -0.01em;
  color: var(--clr-white); margin-bottom: 1.8rem;
  animation: fadeUp 1s 0.15s ease both;
}
.hero-title-line { display: block; }
.hero-title .accent {
  background: linear-gradient(135deg, var(--clr-accent) 0%, var(--clr-accent-2) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero-tagline {
  font-size: clamp(1rem, 2vw, 1.2rem); color: var(--clr-text-muted);
  max-width: 600px; margin: 0 auto 0.8rem;
  animation: fadeUp 1s 0.28s ease both; line-height: 1.7;
}
.hero-sub {
  font-family: var(--font-serif); font-size: 1.15rem; font-style: italic;
  color: var(--clr-accent-2); margin-bottom: 2.5rem;
  animation: fadeUp 1s 0.4s ease both;
}
.hero-cta {
  display: flex; flex-wrap: wrap; gap: 1rem;
  justify-content: center;
  animation: fadeUp 1s 0.52s ease both;
}
.btn-hero {
  display: inline-flex; align-items: center; gap: 0.55rem;
  background: linear-gradient(135deg, var(--clr-accent), var(--clr-accent-2));
  color: var(--clr-bg); font-weight: 600; font-size: 0.9rem;
  padding: 0.85rem 2rem; border-radius: 100px; letter-spacing: 0.03em;
  transition: transform var(--transition), box-shadow var(--transition);
  animation: pulseGlow 4s 2s ease-in-out infinite;
}
.btn-hero:hover { transform: translateY(-3px); box-shadow: 0 14px 36px var(--clr-accent-glow); }
.btn-hero i { animation: floatY 2.2s ease-in-out infinite; }
.btn-hero-ghost {
  display: inline-flex; align-items: center; gap: 0.5rem;
  border: 1px solid var(--clr-border);
  color: var(--clr-text-muted); font-weight: 500; font-size: 0.9rem;
  padding: 0.85rem 2rem; border-radius: 100px;
  transition: border-color var(--transition), color var(--transition), transform var(--transition);
}
.btn-hero-ghost:hover { border-color: var(--clr-accent-2); color: var(--clr-white); transform: translateY(-2px); }
.hero-scroll-indicator {
  position: absolute; bottom: 2.5rem; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center;
}
.scroll-line {
  display: block; width: 1px;
  background: linear-gradient(to bottom, var(--clr-accent), transparent);
  animation: scrollLine 2.8s ease-in-out infinite;
}
.particle {
  position: absolute; width: 3px; height: 3px; border-radius: 50%;
  background: var(--clr-accent-2); opacity: 0;
  animation: particleDrift linear infinite;
}

/* ── Sections ───────────────────────────────────────────────── */
.section        { padding: 6.5rem 0; }
.section-stone  { background-color: var(--clr-bg-alt); }

.section-label {
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--clr-accent-zen); margin-bottom: 0.7rem;
}
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 600;
  color: var(--clr-white); line-height: 1.15; margin-bottom: 1.2rem;
}
.section-desc {
  color: var(--clr-text-muted); font-size: 1.05rem;
  max-width: 620px; margin-bottom: 3rem; line-height: 1.8;
}

/* ── Blockquotes zen ─────────────────────────────────────────── */
.zen-quote {
  margin-top: 3rem; padding: 2rem 2.5rem;
  border-left: 2px solid var(--clr-accent);
  background: var(--clr-surface);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  max-width: 680px;
}
.zen-quote--center { margin-inline: auto; border-left: none; border-top: 1px solid var(--clr-border); text-align: center; }
.zen-quote p {
  font-family: var(--font-serif); font-size: 1.25rem; font-style: italic;
  color: var(--clr-text); line-height: 1.6; margin-bottom: 0.6rem;
}
.zen-quote cite {
  font-size: 0.82rem; font-weight: 500; letter-spacing: 0.08em;
  color: var(--clr-text-muted); font-style: normal;
}
.inline-quote {
  margin: 1.5rem 0; padding: 1.2rem 1.6rem;
  border-left: 2px solid var(--clr-accent-zen);
  background: var(--clr-surface);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.inline-quote p {
  font-family: var(--font-serif); font-size: 1.1rem; font-style: italic;
  color: var(--clr-text); margin-bottom: 0.4rem; line-height: 1.55;
}
.inline-quote cite { font-size: 0.8rem; color: var(--clr-text-muted); font-style: normal; }

/* ── Símbolos zen ────────────────────────────────────────────── */
.zen-symbol {
  font-size: 2rem; color: var(--clr-accent); margin-bottom: 0.5rem;
  line-height: 1;
}

/* ── Video ───────────────────────────────────────────────────── */
.video-wrapper  { max-width: 900px; margin-inline: auto; }
.video-container {
  position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden;
  border-radius: var(--radius-md); box-shadow: var(--shadow-card);
  border: 1px solid var(--clr-border);
}
.video-container iframe {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0;
}

/* ── Cards Grid ──────────────────────────────────────────────── */
.cards-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 2rem; }
.card {
  background: var(--clr-surface); border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg); overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-card), 0 0 40px var(--clr-accent-glow);
  border-color: rgba(139,115,85,0.3);
}
.card-tag {
  display: inline-block; font-size: 0.7rem; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--clr-accent-zen); background: rgba(107,143,122,0.12);
  border-radius: 100px; padding: 0.28rem 0.85rem;
  margin: 1.25rem 1.25rem 0.6rem;
}
.card-body   { padding: 0.8rem 1.4rem 1.5rem; }
.card-title  { font-family: var(--font-serif); font-size: 1.3rem; font-weight: 600; color: var(--clr-white); margin-bottom: 0.4rem; }
.card-text   { color: var(--clr-text-muted); font-size: 0.92rem; line-height: 1.7; margin-bottom: 1rem; }
.card-link   { display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.86rem; font-weight: 600; color: var(--clr-accent-2); transition: gap var(--transition), color var(--transition); }
.card-link:hover { gap: 0.7rem; color: var(--clr-white); }
.card-img-link { position: relative; display: block; overflow: hidden; }
.card-img      { width: 100%; aspect-ratio: 16/7; object-fit: cover; transition: transform 0.5s ease; }
.card-img-link:hover .card-img { transform: scale(1.04); }
.card-img-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, transparent 40%, rgba(15,14,13,0.82));
  display: flex; align-items: flex-end; padding: 1rem 1.25rem;
  opacity: 0; transition: opacity var(--transition);
  color: var(--clr-white); font-weight: 600; font-size: 0.88rem;
}
.card-img-link:hover .card-img-overlay { opacity: 1; }

/* ── Tai Chi / Deportes ─────────────────────────────────────── */
.tai-chi-block {
  display: grid; grid-template-columns: 1fr 1fr; gap: 3.5rem;
  align-items: center; margin-bottom: 2.5rem;
}
.tai-chi-img {
  width: 100%; border-radius: var(--radius-md); border: 1px solid var(--clr-border);
  transition: transform var(--transition), box-shadow var(--transition);
}
.tai-chi-img:hover { transform: scale(1.02); box-shadow: var(--shadow-card); }
.tai-chi-title {
  font-family: var(--font-serif); font-size: 2.2rem; font-weight: 600;
  color: var(--clr-white); margin-bottom: 1.2rem;
}
.tai-chi-title .tm { font-size: 0.65em; vertical-align: super; color: var(--clr-accent); }
.tai-chi-text p  { color: var(--clr-text-muted); line-height: 1.8; margin-bottom: 1rem; }
.tai-chi-text strong { color: var(--clr-text); }
.tai-chi-master  { border-radius: var(--radius-md); overflow: hidden; border: 1px solid var(--clr-border); }
.tai-chi-master img { width: 100%; display: block; transition: transform 0.5s ease; }
.tai-chi-master:hover img { transform: scale(1.02); }

/* ── Libros ──────────────────────────────────────────────────── */
.book-card {
  display: grid; grid-template-columns: 200px 1fr; gap: 3rem; align-items: start;
  background: var(--clr-surface); border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg); padding: 2.5rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.book-card:hover { border-color: rgba(139,115,85,0.3); box-shadow: var(--shadow-card); }
.book-cover img {
  border-radius: var(--radius-sm); box-shadow: 0 20px 60px rgba(0,0,0,0.6);
  transition: transform var(--transition), box-shadow var(--transition);
}
.book-cover img:hover { transform: translateY(-6px) rotate(-2deg); box-shadow: 0 28px 70px rgba(0,0,0,0.7); }
.book-genre {
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--clr-accent-zen); background: rgba(107,143,122,0.12);
  border-radius: 100px; padding: 0.25rem 0.85rem; display: inline-block; margin-bottom: 1rem;
}
.book-title  { font-family: var(--font-serif); font-size: 1.9rem; font-weight: 600; color: var(--clr-white); line-height: 1.2; margin-bottom: 0.3rem; }
.book-author { font-size: 0.9rem; font-weight: 500; color: var(--clr-accent-2); margin-bottom: 1.2rem; font-style: italic; }
.book-desc   { color: var(--clr-text-muted); font-size: 0.93rem; line-height: 1.78; margin-bottom: 0.8rem; }
.book-desc strong { color: var(--clr-text); }
.book-desc em { color: var(--clr-accent-2); }

/* ── Sobre mí ────────────────────────────────────────────────── */
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start;
}
.about-text p { color: var(--clr-text-muted); line-height: 1.85; margin-bottom: 1.1rem; }
.about-text strong { color: var(--clr-text); }
.about-text em { color: var(--clr-accent-2); font-style: italic; }
.about-principles-title {
  font-family: var(--font-serif); font-size: 1.15rem; font-weight: 600;
  color: var(--clr-white); margin-bottom: 1.5rem; letter-spacing: 0.02em;
}
.principles-list { display: flex; flex-direction: column; gap: 1.5rem; }
.principles-list li { display: flex; align-items: flex-start; gap: 1rem; }
.principle-icon {
  font-size: 1.4rem; color: var(--clr-accent); line-height: 1.3;
  flex-shrink: 0; width: 2rem; text-align: center;
}
.principles-list strong { display: block; color: var(--clr-white); font-size: 0.95rem; margin-bottom: 0.2rem; }
.principles-list p { color: var(--clr-text-muted); font-size: 0.88rem; line-height: 1.6; margin: 0; }

/* ── Social Grid ─────────────────────────────────────────────── */
.social-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(175px, 1fr)); gap: 1.2rem; margin-top: 1rem; }
.social-card {
  display: flex; flex-direction: column; align-items: center; gap: 0.6rem;
  padding: 2rem 1rem;
  background: var(--clr-surface); border: 1px solid var(--clr-border);
  border-radius: var(--radius-md); font-size: 0.88rem; font-weight: 600;
  color: var(--clr-text-muted);
  transition: transform var(--transition), border-color var(--transition), color var(--transition), box-shadow var(--transition);
}
.social-card i { font-size: 1.7rem; color: var(--clr-accent); transition: transform var(--transition), color var(--transition); }
.social-handle { font-size: 0.75rem; font-weight: 400; color: var(--clr-text-muted); letter-spacing: 0.04em; }
.social-card:hover {
  transform: translateY(-5px); border-color: var(--clr-accent);
  color: var(--clr-white); box-shadow: 0 10px 40px var(--clr-accent-glow);
}
.social-card:hover i { transform: scale(1.15); color: var(--clr-accent-2); }

/* ── Footer ──────────────────────────────────────────────────── */
.footer-zen-line {
  text-align: center; padding: 1.5rem 0 0;
  font-family: var(--font-serif); font-size: 0.9rem; font-style: italic;
  color: var(--clr-text-muted); letter-spacing: 0.2em;
  border-top: 1px solid var(--clr-border);
}
.site-footer { background: var(--clr-bg); padding-bottom: 2.5rem; }
.footer-inner {
  max-width: var(--max-w); margin-inline: auto;
  padding: 2rem 1.5rem 0;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 1.25rem;
}
.footer-brand {
  display: flex; align-items: center; gap: 0.6rem;
  font-weight: 600; font-size: 0.82rem; color: var(--clr-text-muted);
  letter-spacing: 0.05em; transition: color var(--transition);
}
.footer-brand:hover { color: var(--clr-white); }
.footer-brand img { width: 34px; height: 34px; border-radius: 50%; object-fit: cover; border: 1px solid var(--clr-border); }
.footer-copy { font-size: 0.82rem; color: var(--clr-text-muted); text-align: center; }
.footer-socials { display: flex; gap: 1.2rem; }
.footer-socials a { color: var(--clr-text-muted); font-size: 1rem; transition: color var(--transition), transform var(--transition); }
.footer-socials a:hover { color: var(--clr-accent-2); transform: translateY(-2px); }

/* ── Focus visible ───────────────────────────────────────────── */
:focus-visible { outline: 2px solid var(--clr-accent); outline-offset: 3px; border-radius: 4px; }

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 960px) {
  .tai-chi-block  { grid-template-columns: 1fr; gap: 2rem; }
  .about-grid     { grid-template-columns: 1fr; gap: 2.5rem; }
  .book-card      { grid-template-columns: 140px 1fr; gap: 1.75rem; padding: 1.75rem; }
  .book-title     { font-size: 1.6rem; }
}
@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: fixed; top: 0; right: 0; height: 100dvh;
    width: min(300px, 78vw);
    background: rgba(15,14,13,0.97); backdrop-filter: blur(22px);
    flex-direction: column; justify-content: center; gap: 2.5rem;
    padding: 3rem 2.5rem;
    transform: translateX(100%); transition: transform var(--transition);
    border-left: 1px solid var(--clr-border); z-index: 999;
  }
  .nav-links.open { transform: translateX(0); }
  .nav-links a { font-size: 1.1rem; }
  .book-card      { grid-template-columns: 1fr; gap: 1.5rem; }
  .book-cover img { max-width: 150px; }
  .footer-inner   { flex-direction: column; text-align: center; align-items: center; }
}
@media (max-width: 480px) {
  .section       { padding: 4.5rem 0; }
  .cards-grid    { grid-template-columns: 1fr; }
  .social-grid   { grid-template-columns: 1fr 1fr; }
  .hero-title    { font-size: clamp(2.6rem, 12vw, 4rem); }
}

/* ── Print ───────────────────────────────────────────────────── */
@media print {
  .site-header, .hero-particles, .zen-brushstroke,
  .hero-scroll-indicator, .nav-toggle { display: none; }
  body { background: #fff; color: #000; }
}