/* ============================================================
   main.css — Dynamic Studio
   Reset, variables, base global, componentes compartidos
   ============================================================ */

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

/* ── VARIABLES ── */
:root {
  /* Tipografías */
  --font-display: 'Syne', sans-serif;
  --font-body: 'Syne', sans-serif;

  /* Paleta */
  --black: #080808;
  --surface: #0f0f0f;
  --surface-2: #161616;
  --white: #f0ede8;
  --white-pure: #ffffff;
  --content: #e8e4dd;
  --muted: rgba(232,228,221,0.42);
  --muted-dark: rgba(0,0,0,0.45);
  --accent: #b89a5e;
  --accent-light: #d4b478;
  --border: rgba(232,228,221,0.07);
  --border-light: rgba(0,0,0,0.08);

  /* Escala tipográfica */
  --text-xs: 10px;
  --text-sm: 12px;
  --text-base: 15px;
  --text-lg: 18px;

  /* Sistema de easings cinematográficos */
  --ease-expo-out:  cubic-bezier(0.16, 1, 0.3, 1);
  --ease-cinema:    cubic-bezier(0.4, 0, 0.2, 1);
  --ease-smooth:    cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-in-quart:  cubic-bezier(0.5, 0, 0.75, 0);

  /* Transiciones */
  --transition-fast: 0.18s var(--ease-cinema);
  --transition-base: 0.32s var(--ease-cinema);
  --transition-slow: 0.65s var(--ease-expo-out);

  /* Sombras */
  --shadow-card: 0 2px 4px rgba(0,0,0,0.06), 0 16px 40px rgba(0,0,0,0.18);

  /* Alias legacy */
  --gray: rgba(232,228,221,0.42);
  --gray-light: #161616;
}

/* ── BASE ── */
html, body {
  background: var(--black);
  color: var(--content);
  font-family: var(--font-body);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* ── SELECCIÓN DE TEXTO ── */
::selection {
  background: rgba(184,154,94,0.28);
  color: var(--content);
}

/* ── FOCUS VISIBLE ── */
:focus-visible {
  outline: 1.5px solid var(--accent);
  outline-offset: 3px;
}
:focus:not(:focus-visible) { outline: none; }

/* ── HERO (páginas internas) ── */
.hero { height: 100vh; height: 100dvh; position: relative; display: flex; align-items: flex-end; padding: 0 2rem 5rem; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center; }
.hero-overlay { position: absolute; inset: 0; }
.hero-content { position: relative; z-index: 2; max-width: 1200px; margin: 0 auto; width: 100%; }
.hero-label { font-size: var(--text-xs); letter-spacing: 0.22em; text-transform: uppercase; color: var(--accent); font-weight: 500; margin-bottom: 1rem; display: block; }
.hero-title { font-family: var(--font-display); font-size: clamp(3rem, 8vw, 9rem); font-weight: 700; letter-spacing: -0.02em; line-height: 0.95; color: var(--content); margin-bottom: 1.5rem; }
.hero-desc { font-size: clamp(0.85rem, 1.5vw, 1rem); color: rgba(232,228,221,0.6); line-height: 1.75; max-width: 520px; letter-spacing: 0.01em; }

/* ── SECTION BASE ── */
.section { padding: 8rem 2rem; max-width: 1200px; margin: 0 auto; }
.label { font-size: var(--text-xs); letter-spacing: 0.22em; text-transform: uppercase; color: var(--accent); font-weight: 500; margin-bottom: 1rem; display: block; }
.section-title { font-family: var(--font-display); font-size: clamp(2rem, 4vw, 4rem); font-weight: 700; letter-spacing: -0.01em; line-height: 1.0; margin-bottom: 3rem; }

/* ── SERVICIOS GRID ── */
.servicios-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--border); margin-bottom: 6rem; }
@media (max-width: 700px) { .servicios-grid { grid-template-columns: 1fr; } }
.servicio-item {
  background: var(--surface);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: background var(--transition-base);
}
.servicio-item:hover { background: var(--surface-2); }
.servicio-num { font-size: var(--text-xs); letter-spacing: 0.18em; color: var(--accent); font-weight: 500; }
.servicio-nombre {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2vw, 1.6rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--content);
  transition: color var(--transition-fast);
}
.servicio-item:hover .servicio-nombre { color: var(--white); }
.servicio-desc { font-size: 0.82rem; color: var(--muted); line-height: 1.8; letter-spacing: 0.01em; }

/* ── GALERÍA ── */
.galeria-full { padding: 0 2rem 8rem; }
.galeria-label { max-width: 1200px; margin: 0 auto 2rem; }
.galeria-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--border); max-width: 1200px; margin: 0 auto; }
@media (max-width: 900px) { .galeria-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .galeria-grid { grid-template-columns: 1fr; } }
.galeria-item { aspect-ratio: 16/9; background: var(--surface-2); overflow: hidden; position: relative; }
.galeria-placeholder { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; background: var(--surface-2); }
.galeria-placeholder svg { width: 28px; height: 28px; opacity: 0.1; }

/* ── PROCESO ── */
.proceso-bg { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; }
@media (max-width: 900px) { .steps { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 500px) { .steps { grid-template-columns: 1fr; } }
.step { display: flex; flex-direction: column; gap: 1rem; padding-top: 1.5rem; border-top: 1px solid var(--border); }
.step-num { font-size: var(--text-xs); letter-spacing: 0.18em; font-weight: 500; color: var(--accent); }
.step h4 { font-family: var(--font-display); font-size: 1.3rem; font-weight: 600; letter-spacing: -0.01em; }
.step p { font-size: 0.82rem; color: var(--muted); line-height: 1.75; }

/* ── CONTACT ── */
.contact-section { background: #fff; color: #000; }
.contact-inner { max-width: 1200px; margin: 0 auto; padding: 8rem 2rem; display: grid; grid-template-columns: 1fr 1fr; gap: 6rem; align-items: start; }
@media (max-width: 800px) { .contact-inner { grid-template-columns: 1fr; gap: 3rem; } }
.contact-label { color: var(--accent); }
.contact-title { font-family: var(--font-display); font-size: clamp(2rem, 4vw, 4rem); font-weight: 700; letter-spacing: -0.01em; line-height: 1.0; color: #111; margin-bottom: 1rem; }
.contact-title em { font-style: normal; color: var(--accent); }
.contact-desc { font-size: 0.85rem; color: rgba(0,0,0,0.45); line-height: 1.75; max-width: 380px; margin-bottom: 2rem; }
.contact-links { display: flex; flex-direction: column; gap: 1rem; }
.contact-link {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-size: 0.88rem;
  color: rgba(0,0,0,0.38);
  text-decoration: none;
  transition: color var(--transition-base), gap var(--transition-base);
  letter-spacing: 0.01em;
}
.contact-link:hover { color: #111; gap: 1rem; }
.contact-link svg {
  width: 18px;
  height: 18px;
  opacity: 0.45;
  flex-shrink: 0;
  transition: opacity var(--transition-base);
}
.contact-link:hover svg { opacity: 0.9; }

/* ── FORM ── */
.form-group { display: flex; flex-direction: column; gap: 0.4rem; margin-bottom: 1.2rem; }
.form-group label { font-size: var(--text-xs); letter-spacing: 0.15em; text-transform: uppercase; font-weight: 500; color: rgba(0,0,0,0.35); }
.form-group input, .form-group textarea { background: #f7f5f2; border: 1px solid rgba(0,0,0,0.1); color: #111; font-family: var(--font-body); font-size: 0.9rem; padding: 0.9rem 1rem; outline: none; transition: border-color 0.2s; border-radius: 2px; }
.form-group input:focus, .form-group textarea:focus { border-color: var(--accent); }
.form-group textarea { resize: vertical; min-height: 120px; }
.btn-submit {
  background: #111;
  color: #fff;
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 1rem 2.2rem;
  border: none;
  cursor: pointer;
  border-radius: 2px;
  transition: background var(--transition-base), letter-spacing var(--transition-slow);
}
.btn-submit:hover {
  background: var(--accent);
  letter-spacing: 0.22em;
}

/* ── Accesibilidad: texto solo para lectores de pantalla ── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ============================================================
   Galería dinámica — overlays para project cards (Fase 9)
   ============================================================ */

.galeria-item--link {
  position: relative;
  display: block;
  text-decoration: none;
  overflow: hidden;
  cursor: pointer;
}

.galeria-item--link img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.55s var(--ease-expo-out);
}

.galeria-item--link:hover img {
  transform: scale(1.05);
}

.galeria-item-overlay {
  position: absolute;
  inset: 0;
  /* Gradiente más profundo — da mayor dramatismo a las fotos */
  background: linear-gradient(
    to top,
    rgba(0,0,0,0.78) 0%,
    rgba(0,0,0,0.22) 45%,
    transparent 70%
  );
  display: flex;
  align-items: flex-end;
  padding: 1rem 1.1rem;
  opacity: 0;
  transition: opacity 0.38s var(--ease-cinema);
}

.galeria-item--link:hover .galeria-item-overlay {
  opacity: 1;
}

.galeria-item-titulo {
  color: var(--white);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ── SCROLL REVEAL ── */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.72s var(--ease-expo-out), transform 0.72s var(--ease-expo-out);
}
.reveal.revealed {
  opacity: 1;
  transform: none;
}
.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }

/* ── RESPONSIVE GLOBAL ── */
@media (max-width: 700px) {
  /* Hero interno — padding inferior más conservador */
  .hero {
    padding: 0 1.25rem 3.5rem;
    min-height: 420px;
  }
  .hero-title {
    /* clamp ya cubre mobile, pero aseguramos que no corte */
    letter-spacing: -0.01em;
  }
  /* Secciones — menos padding vertical en mobile */
  .section {
    padding: 5rem 1.25rem;
  }
  /* Contact — padding interno */
  .contact-inner {
    padding: 5rem 1.25rem;
  }
  /* Galería full */
  .galeria-full {
    padding: 0 1.25rem 5rem;
  }
  .galeria-label {
    margin-bottom: 1.25rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: clamp(2.2rem, 10vw, 3rem);
  }
  .section-title {
    font-size: clamp(1.75rem, 7vw, 2.5rem);
  }
}

/* ── PREFERS-REDUCED-MOTION ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}