/* ============================================================
   JESÚS ROBLES ARQUITECTO — Sistema de Diseño Stitch
   Tokens extraídos de: "Rediseño Valuación y Proyectos"
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@200;300;400;500;600;700&family=Inter:wght@400;500;600&display=swap');

/* ── TOKENS ─────────────────────────────────────────────── */
:root {
  /* Colores primarios */
  --color-black:        #000000;
  --color-yellow:       #F7E307;
  --color-white:        #ffffff;

  /* Superficies */
  --surface:            #f9f9f9;
  --surface-low:        #f3f3f3;
  --surface-container:  #eeeeee;
  --surface-high:       #e8e8e8;
  --surface-highest:    #e2e2e2;
  --surface-dim:        #dadada;

  /* Texto */
  --on-surface:         #1a1c1c;
  --on-surface-variant: #4c4546;
  --on-primary:         #ffffff;

  /* Bordes */
  --outline:            #7e7576;
  --outline-variant:    #cfc4c5;
  --border-light:       #e0e0e0;

  /* Fondo */
  --bg-primary:         #ffffff;
  --bg-secondary:       #f5f5f5;

  /* Tipografía */
  --font-headline: 'Manrope', sans-serif;
  --font-body:     'Inter', sans-serif;

  /* Escala tipográfica */
  --text-xl:   clamp(2.5rem, 5vw, 4.5rem);
  --text-lg:   clamp(1.75rem, 3vw, 2.5rem);
  --text-md:   1.5rem;
  --text-body: 1rem;
  --text-sm:   0.875rem;
  --text-xs:   0.75rem;

  /* Espaciado (base 8px) */
  --space-1:  8px;
  --space-2:  16px;
  --space-3:  24px;
  --space-4:  32px;
  --space-6:  48px;
  --space-8:  64px;
  --space-10: 80px;
  --space-12: 96px;

  /* Layout */
  --container-max: 1280px;
  --gutter:        24px;
  --margin:        64px;

  /* Transiciones */
  --transition: 0.25s ease;
}

/* ── RESET ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: 1.6;
  color: var(--on-surface);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ── UTILIDADES ─────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--margin);
}
@media (max-width: 768px) {
  .container { padding-inline: var(--space-3); }
}

.label-caps {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.chip {
  display: inline-block;
  padding: 4px 10px;
  background: var(--surface-high);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
}
.chip--yellow { background: var(--color-yellow); color: var(--color-black); }

/* ── BOTONES ────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: 0;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition);
}
.btn--primary {
  background: var(--color-black);
  color: var(--color-white);
  border: 1px solid var(--color-black);
}
.btn--primary:hover {
  background: #1b1b1b;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.15);
}
.btn--outline {
  background: transparent;
  color: var(--color-black);
  border: 1px solid var(--color-black);
}
.btn--outline:hover {
  background: var(--color-black);
  color: var(--color-white);
}
.btn--yellow {
  background: var(--color-yellow);
  color: var(--color-black);
  border: 1px solid var(--color-yellow);
}
.btn--yellow:hover { background: #e8d406; }

/* ── NAVEGACIÓN ─────────────────────────────────────────── */
header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background var(--transition), backdrop-filter var(--transition);
}
header.scrolled {
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-light);
}
header nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
/* BRANDING HEADER - SOLUCIÓN DEFINITIVA */
nav.container a.nav__logo {
  display: flex !important;
  flex-direction: row !important;
  flex-wrap: nowrap !important;
  align-items: center !important;
  justify-content: flex-start !important;
  gap: 12px !important;
  text-decoration: none !important;
  width: auto !important;
  min-width: 200px !important;
}

nav.container a.nav__logo img {
  height: 38px !important;
  width: auto !important;
  margin: 0 !important;
  display: block !important;
  flex-shrink: 0 !important;
  filter: brightness(0) invert(1);
}

nav.container a.nav__logo .nav__logo-text {
  margin: 0 !important;
  padding: 0 !important;
  display: block !important;
  white-space: nowrap !important;
  font-family: var(--font-headline) !important;
  font-weight: 300 !important;
  font-size: 1.2rem !important;
  line-height: 1 !important;
  color: #ffffff;
  transition: color var(--transition-base);
}

#site-header.scrolled .nav__logo-text {
  color: var(--color-black) !important;
}
#site-header.scrolled .nav__logo img {
  filter: brightness(0);
}

/* Footer Logo - También forzado */
.footer__brand-header {
  display: flex !important;
  flex-direction: row !important;
  align-items: center !important;
  gap: 12px !important;
  margin-bottom: var(--space-4) !important;
}

.footer__brand-header img {
  height: 32px !important;
  width: auto !important;
  margin: 0 !important;
}

.footer__brand-header .logo-text {
  margin: 0 !important;
  white-space: nowrap !important;
  color: #ffffff !important;
}
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.nav__links a {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.85);
  transition: color var(--transition);
  position: relative;
}
.nav__links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 1px;
  background: var(--color-yellow);
  transition: width var(--transition);
}
.nav__links a:hover::after,
.nav__links a.active::after { width: 100%; }
.nav__links a:hover { color: var(--color-white); }
header.scrolled .nav__links a { color: var(--on-surface-variant); }
header.scrolled .nav__links a:hover { color: var(--color-black); }

.nav__cta { display: none; }
@media (min-width: 900px) { .nav__cta { display: inline-flex; } }

/* Hamburguesa móvil */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  transition: transform var(--transition), opacity var(--transition);
}
header.scrolled .nav__hamburger span { background: var(--color-black); }
@media (max-width: 768px) {
  .nav__hamburger { display: flex; }
  .nav__links {
    position: fixed;
    top: 72px; left: 0; right: 0;
    background: var(--color-black);
    flex-direction: column;
    padding: var(--space-4);
    gap: var(--space-3);
    transform: translateY(-120%);
    opacity: 0;
    transition: transform var(--transition), opacity var(--transition);
  }
  .nav__links.open { transform: translateY(0); opacity: 1; }
  .nav__links a { color: rgba(255,255,255,0.85); font-size: 1rem; }
}

/* ── HERO ───────────────────────────────────────────────── */
.hero {
  position: relative;
  height: 100svh;
  min-height: 600px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  background-image: url('../assets/images/hero.png');
  background-size: cover;
  background-position: center 40%;
  transform: scale(1.05);
  transition: transform 8s ease;
}
.hero__bg.loaded { transform: scale(1); }
.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top,
    rgba(0,0,0,0.72) 0%,
    rgba(0,0,0,0.3) 50%,
    rgba(0,0,0,0.1) 100%);
}
.hero__content {
  position: relative;
  z-index: 2;
  padding-bottom: var(--space-12);
  max-width: 720px;
}
.hero__tag {
  color: var(--color-yellow);
  margin-bottom: var(--space-2);
}
.hero__title {
  font-family: var(--font-headline);
  font-size: var(--text-xl);
  font-weight: 200;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--color-white);
  margin-bottom: var(--space-3);
}
.hero__subtitle {
  font-size: 1.125rem;
  color: rgba(255,255,255,0.78);
  line-height: 1.6;
  margin-bottom: var(--space-4);
  max-width: 520px;
}
.hero__actions { display: flex; gap: var(--space-2); flex-wrap: wrap; }
.hero__scroll {
  position: absolute;
  bottom: var(--space-4);
  right: var(--margin);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.55);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.hero__scroll::after {
  content: '';
  width: 1px;
  height: 48px;
  background: rgba(255,255,255,0.35);
}

/* ── SECCIONES GENERALES ────────────────────────────────── */
.section { padding-block: var(--space-10); }
.section--alt { background: var(--bg-secondary); }
.section--dark { background: var(--color-black); color: var(--color-white); }

.section__label { color: var(--on-surface-variant); margin-bottom: var(--space-2); }
.section--dark .section__label { color: rgba(255,255,255,0.5); }

.section__title {
  font-family: var(--font-headline);
  font-size: var(--text-lg);
  font-weight: 300;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-3);
}
.section--dark .section__title { color: var(--color-white); }

.section__body {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--on-surface-variant);
  max-width: 560px;
  margin-bottom: var(--space-4);
}
.section--dark .section__body { color: rgba(255,255,255,0.65); }

/* ── SERVICIOS ──────────────────────────────────────────── */
.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1px;
  background: var(--border-light);
  border: 1px solid var(--border-light);
  margin-top: var(--space-8);
}
.service-card {
  background: var(--bg-primary);
  padding: var(--space-6) var(--space-4);
  transition: background var(--transition);
}
.service-card:hover { background: var(--surface-low); }
.service-card__icon {
  width: 40px;
  height: 2px;
  background: var(--color-yellow);
  margin-bottom: var(--space-3);
}
.service-card__title {
  font-family: var(--font-headline);
  font-size: 1.25rem;
  font-weight: 500;
  margin-bottom: var(--space-2);
}
.service-card__body {
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--on-surface-variant);
}

/* ── PROYECTOS GRID ─────────────────────────────────────── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--gutter);
  margin-top: var(--space-8);
}
.project-card { grid-column: span 4; }
.project-card--featured { grid-column: span 8; }
@media (max-width: 900px) {
  .project-card,
  .project-card--featured { grid-column: span 12; }
}
.project-card__img {
  aspect-ratio: 4/3;
  overflow: hidden;
  position: relative;
}
.project-card--featured .project-card__img { aspect-ratio: 16/9; }
.project-card__img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.project-card:hover .project-card__img img { transform: scale(1.04); }
.project-card__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.1);
  opacity: 0;
  transition: opacity var(--transition);
  display: flex;
  align-items: flex-end;
  padding: var(--space-3);
}
.project-card:hover .project-card__overlay { opacity: 1; }
.project-card__info {
  background: var(--bg-primary);
  padding: var(--space-2) var(--space-3) var(--space-3);
  border-top: 2px solid var(--color-yellow);
}
.project-card__name {
  font-family: var(--font-headline);
  font-size: 1.125rem;
  font-weight: 500;
  margin: 8px 0 4px;
}
.project-card__meta { color: var(--on-surface-variant); }

/* ── PROCESO ────────────────────────────────────────────── */
.process__steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0;
  margin-top: var(--space-8);
  border-top: 2px solid var(--border-light);
  counter-reset: step;
}
.process-step {
  padding: var(--space-4) var(--space-3) var(--space-3);
  border-right: 1px solid var(--border-light);
  counter-increment: step;
  position: relative;
}
.process-step:last-child { border-right: none; }
.process-step::before {
  content: '0' counter(step);
  font-family: var(--font-headline);
  font-size: 2rem;
  font-weight: 200;
  color: var(--color-yellow);
  display: block;
  margin-bottom: var(--space-2);
}
.process-step__title {
  font-family: var(--font-headline);
  font-weight: 500;
  font-size: 1rem;
  margin-bottom: 8px;
}
.process-step__body { font-size: var(--text-sm); color: var(--on-surface-variant); line-height: 1.6; }

/* ── BIO ────────────────────────────────────────────────── */
.bio__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: center;
}
@media (max-width: 768px) { .bio__grid { grid-template-columns: 1fr; } }
.bio__img { aspect-ratio: 4/5; overflow: hidden; }
.bio__img img { width: 100%; height: 100%; object-fit: cover; }
.bio__pillars { display: flex; flex-direction: column; gap: var(--space-4); margin-top: var(--space-4); }
.bio__pillar {
  padding: var(--space-3);
  border-left: 2px solid var(--color-yellow);
  background: var(--bg-secondary);
}
.bio__pillar-title {
  font-family: var(--font-headline);
  font-weight: 600;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}
.bio__pillar-body { font-size: var(--text-sm); color: var(--on-surface-variant); line-height: 1.6; }

/* ── CTA FINAL ──────────────────────────────────────────── */
.cta-section {
  background: var(--color-black);
  padding-block: var(--space-12);
  text-align: center;
}
.cta-section__title {
  font-family: var(--font-headline);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 200;
  letter-spacing: -0.02em;
  color: var(--color-white);
  margin-bottom: var(--space-3);
  max-width: 700px;
  margin-inline: auto;
}
.cta-section__body {
  color: rgba(255,255,255,0.6);
  font-size: 1.0625rem;
  max-width: 480px;
  margin-inline: auto;
  margin-bottom: var(--space-5, var(--space-6));
}

/* ── AVALÚOS ────────────────────────────────────────────── */
.avaluo-types { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: var(--gutter); margin-top: var(--space-6); }
.avaluo-card {
  padding: var(--space-4);
  border: 1px solid var(--border-light);
  transition: border-color var(--transition), background var(--transition);
}
.avaluo-card:hover { border-color: var(--color-yellow); background: var(--surface-low); }
.avaluo-card__num {
  font-family: var(--font-headline);
  font-size: 3rem;
  font-weight: 200;
  color: var(--surface-high);
  line-height: 1;
  margin-bottom: var(--space-2);
}
.avaluo-card__title {
  font-family: var(--font-headline);
  font-size: 1.25rem;
  font-weight: 500;
  margin-bottom: 8px;
}
.avaluo-card__body { font-size: var(--text-sm); color: var(--on-surface-variant); line-height: 1.7; }

/* Data table */
.data-table { width: 100%; border-collapse: collapse; margin-top: var(--space-6); font-size: var(--text-sm); }
.data-table th {
  text-align: left;
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  border-bottom: 1px solid var(--border-light);
  background: var(--bg-secondary);
}
.data-table td { padding: 14px 16px; border-bottom: 1px solid var(--border-light); color: var(--on-surface); }
.data-table tr:nth-child(even) td { background: var(--bg-secondary); }

/* ── FORMULARIO ─────────────────────────────────────────── */
.form { display: flex; flex-direction: column; gap: var(--space-4); }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label { font-family: var(--font-body); font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--on-surface-variant); }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 0;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--color-black);
  font-family: var(--font-body);
  font-size: var(--text-body);
  color: var(--on-surface);
  outline: none;
  transition: border-color var(--transition);
  border-radius: 0;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-bottom-color: var(--color-yellow); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); }
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }

/* ── FOOTER ─────────────────────────────────────────────── */
footer {
  background: var(--color-black);
  color: var(--color-white);
  padding-block: var(--space-8) var(--space-4);
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: var(--space-8);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
@media (max-width: 768px) { .footer__grid { grid-template-columns: 1fr 1fr; } }
.footer__brand p { font-size: var(--text-sm); color: rgba(255,255,255,0.5); line-height: 1.7; margin-top: var(--space-2); max-width: 320px; }
.footer__brand .logo-text {
  font-family: var(--font-headline);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-white);
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer__brand .logo-text::before {
  content: '';
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-yellow);
}
.footer__col {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.footer__col h4 {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: var(--space-3);
}
.footer__col ul { display: flex; flex-direction: column; gap: var(--space-1); }
.footer__col ul a { font-size: var(--text-sm); color: rgba(255,255,255,0.65); transition: color var(--transition); }
.footer__col ul a:hover { color: var(--color-white); }
.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding-top: var(--space-4);
}
.footer__bottom p { font-size: var(--text-xs); color: rgba(255,255,255,0.35); }
.footer__bottom-links { display: flex; gap: var(--space-3); }
.footer__bottom-links a { font-size: var(--text-xs); color: rgba(255,255,255,0.35); transition: color var(--transition); }
.footer__bottom-links a:hover { color: rgba(255,255,255,0.7); }

/* ── ANIMACIONES ────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ── PAGE HEADER (páginas internas) ────────────────────── */
.page-header {
  background: var(--color-black);
  padding-top: calc(72px + var(--space-8));
  padding-bottom: var(--space-8);
}
.page-header__label { color: var(--color-yellow); margin-bottom: var(--space-2); }
.page-header__title {
  font-family: var(--font-headline);
  font-size: var(--text-xl);
  font-weight: 200;
  letter-spacing: -0.02em;
  color: var(--color-white);
  max-width: 640px;
}
.page-header__body { color: rgba(255,255,255,0.6); font-size: 1.0625rem; max-width: 560px; margin-top: var(--space-3); }

/* ── FILTROS GALERÍA ────────────────────────────────────── */
.filter-bar { display: flex; gap: var(--space-2); flex-wrap: wrap; margin-bottom: var(--space-6); padding-bottom: var(--space-3); border-bottom: 1px solid var(--border-light); }
.filter-btn {
  padding: 8px 16px;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--border-light);
  background: transparent;
  color: var(--on-surface-variant);
  transition: all var(--transition);
  cursor: pointer;
  border-radius: 0;
}
.filter-btn.active,
.filter-btn:hover {
  background: var(--color-black);
  color: var(--color-white);
  border-color: var(--color-black);
}

/* ── GALLERY GRID ───────────────────────────────────────── */
.gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gutter); }
@media (max-width: 900px) { .gallery-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .gallery-grid { grid-template-columns: 1fr; } }
.gallery-item.hidden { display: none; }