/* ===== RESET / BASE ===== */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: auto; } /* Lenis maneja el smooth scroll */

body {
  font-family: 'Space Grotesk', sans-serif;
  background: #ffffff;
  color: #0d0d0d;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== CSS VARIABLES ===== */
:root {
  --color-bg-main: #ffffff;
  --color-bg-secondary: #f5f5f5;
  --color-bg-dark: #0d0d0d;
  --color-text-primary: #0d0d0d;
  --color-text-secondary: #ffffff;
  --color-text-muted: rgba(0,0,0,0.45);
  --color-text-muted-light: rgba(255,255,255,0.55);
  --color-border: rgba(0,0,0,0.10);
  --color-border-dark: rgba(255,255,255,0.12);
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: #0d0d0d; }
::-webkit-scrollbar-thumb { background: #555; border-radius: 2px; }

/* ===== HEADER ===== */
#header {
  background: transparent;
  transition: background 0.4s ease, box-shadow 0.3s ease;
}
#header.scrolled {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: none;
  border-bottom: 1px solid rgba(0,0,0,0.08);
}

/* Logo sobre fondo oscuro (hero) */
.logo-name,
.logo-title {
  color: #ffffff;
  transition: color 0.4s ease;
}
#header.scrolled .logo-name,
#header.scrolled .logo-title {
  color: #0d0d0d;
}

/* Nav links — blancos sobre hero, negros al hacer scroll */
.nav-link {
  font-size: 0.78rem;
  font-weight: 400;
  color: rgba(255,255,255,0.75);
  text-decoration: none;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color 0.25s;
}
.nav-link:hover { color: #ffffff; }
#header.scrolled .nav-link { color: rgba(0,0,0,0.55); }
#header.scrolled .nav-link:hover { color: #0d0d0d; }

/* CTA en nav */
.nav-cta {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #ffffff;
  border: 1px solid rgba(255,255,255,0.5);
  padding: 8px 20px;
  text-decoration: none;
  transition: background 0.25s, color 0.25s, border-color 0.25s;
}
.nav-cta:hover {
  background: #ffffff;
  color: #0d0d0d;
}
#header.scrolled .nav-cta {
  color: #0d0d0d;
  border-color: rgba(0,0,0,0.3);
}
#header.scrolled .nav-cta:hover {
  background: #0d0d0d;
  color: #ffffff;
  border-color: #0d0d0d;
}

/* Hamburger */
.ham-line {
  display: block;
  width: 22px;
  height: 1.5px;
  background: rgba(255,255,255,0.85);
  transition: all 0.3s;
}
#header.scrolled .ham-line { background: #0d0d0d; }
#hamburger.open .ham-line:nth-child(1) { transform: translateY(5.75px) rotate(45deg); }
#hamburger.open .ham-line:nth-child(2) { opacity: 0; }
#hamburger.open .ham-line:nth-child(3) { transform: translateY(-5.75px) rotate(-45deg); }

/* Mobile menu */
.mobile-nav-link {
  display: block;
  padding: 14px 0;
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #0d0d0d;
  border-bottom: 1px solid rgba(0,0,0,0.08);
  text-decoration: none;
  transition: color 0.2s;
}
.mobile-nav-link:hover { color: rgba(0,0,0,0.5); }
.mobile-nav-link:last-child { border-bottom: none; }

/* ===== HERO ===== */
.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.5), #0d0d0d);
}

/* Label chip del hero */
.hero-label {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.85);
  border: 1px solid rgba(255,255,255,0.35);
  padding: 8px 20px;
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.4);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.scroll-line {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,0.2);
  position: relative;
  overflow: hidden;
}
.scroll-line::after {
  content: '';
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255,255,255,0.7);
  animation: scrollDown 1.8s ease-in-out infinite;
}
@keyframes scrollDown {
  0% { top: -100%; }
  100% { top: 100%; }
}

/* ===== STATS ===== */
.stat-number {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 300;
  color: #0d0d0d;
  line-height: 1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.stat-suffix {
  font-size: 1.5rem;
  font-weight: 300;
  color: rgba(0,0,0,0.35);
}
.stat-label {
  font-size: 0.68rem;
  font-weight: 700;
  color: rgba(0,0,0,0.4);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-top: 0.75rem;
}

/* ===== SECCIÓN TÍTULOS ===== */
.section-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(0,0,0,0.35);
  margin-bottom: 1.25rem;
}
.section-label-light {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.35);
  margin-bottom: 1.25rem;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.75rem);
  font-weight: 300;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #0d0d0d;
  line-height: 1.1;
}
.section-title-light {
  font-size: clamp(1.8rem, 4vw, 2.75rem);
  font-weight: 300;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #ffffff;
  line-height: 1.1;
}

.section-rule {
  width: 40px;
  height: 1px;
  background: rgba(0,0,0,0.2);
  margin: 1.5rem 0;
}
.section-rule-light {
  width: 40px;
  height: 1px;
  background: rgba(255,255,255,0.2);
  margin: 1.5rem 0;
}

/* ===== IMAGEN FOTO ===== */
.foto-claudio {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%);
  transition: filter 0.4s ease, transform 0.6s ease;
}
.foto-claudio:hover {
  filter: grayscale(100%) brightness(1.05);
  transform: scale(1.02);
}

/* ===== QUOTE ===== */
.quote-text {
  font-style: italic;
  font-weight: 300;
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  line-height: 1.5;
  color: rgba(0,0,0,0.5);
}

/* ===== PHILOSOPHY CARDS (dark bg) ===== */
.pilar-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.10);
  padding: 2rem;
  transition: background 0.35s ease, border-color 0.35s ease;
}
.pilar-card:hover {
  background: rgba(255,255,255,0.07);
  border-color: rgba(255,255,255,0.20);
}
.pilar-number {
  font-size: 2.5rem;
  font-weight: 300;
  color: rgba(255,255,255,0.08);
  line-height: 1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  transition: color 0.35s;
}
.pilar-card:hover .pilar-number { color: rgba(255,255,255,0.15); }

/* ===== PROJECT CARDS ===== */
.project-card img {
  filter: grayscale(100%);
  transition: transform 0.6s ease, filter 0.4s ease;
}
.project-card:hover img {
  transform: scale(1.02);
  filter: grayscale(100%) brightness(1.05);
}
.project-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.3) 50%, transparent 100%);
  opacity: 0;
  transition: opacity 0.4s ease;
}
.project-card:hover .project-card-overlay { opacity: 1; }
.project-card-meta {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1.5rem;
  transform: translateY(8px);
  opacity: 0;
  transition: transform 0.4s ease, opacity 0.4s ease;
}
.project-card:hover .project-card-meta {
  transform: translateY(0);
  opacity: 1;
}

/* ===== PRENSA CARDS ===== */
.prensa-card {
  background: #ffffff;
  border: 1px solid rgba(0,0,0,0.10);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: border-color 0.35s ease, box-shadow 0.35s ease;
}
.prensa-card:hover {
  border-color: rgba(0,0,0,0.25);
  box-shadow: 0 8px 32px rgba(0,0,0,0.08);
}
.prensa-img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  filter: grayscale(100%);
  transition: filter 0.4s, transform 0.5s;
}
.prensa-card:hover .prensa-img {
  filter: grayscale(100%) brightness(1.05);
  transform: scale(1.02);
}
.prensa-medio {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(0,0,0,0.35);
  margin-bottom: 0.5rem;
}
.prensa-title {
  font-size: 0.95rem;
  font-weight: 500;
  color: #0d0d0d;
  line-height: 1.4;
  margin-bottom: 1rem;
}
.prensa-link {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #0d0d0d;
  text-decoration: none;
  border-bottom: 1px solid rgba(0,0,0,0.2);
  padding-bottom: 2px;
  transition: border-color 0.2s;
  align-self: flex-start;
}
.prensa-link:hover { border-color: #0d0d0d; }

/* ===== FORM ===== */
.form-label {
  display: block;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(0,0,0,0.4);
  margin-bottom: 6px;
}
.form-input {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(0,0,0,0.15);
  color: #0d0d0d;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.9rem;
  padding: 10px 0;
  outline: none;
  transition: border-color 0.25s;
  border-radius: 0;
}
.form-input::placeholder { color: rgba(0,0,0,0.25); }
.form-input:focus { border-color: #0d0d0d; }

textarea.form-input { resize: none; }

.submit-btn {
  background: #0d0d0d;
  color: #ffffff;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 16px 40px;
  border: 1px solid #0d0d0d;
  cursor: pointer;
  transition: background 0.25s, color 0.25s;
}
.submit-btn:hover {
  background: transparent;
  color: #0d0d0d;
}
.submit-btn:disabled { opacity: 0.4; cursor: not-allowed; }

#form-msg.success { color: #1a7a1a; font-size: 0.85rem; }
#form-msg.error   { color: #8b1a1a; font-size: 0.85rem; }

/* ===== BOTONES GENERALES ===== */
.btn-primary {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #ffffff;
  border: 1px solid rgba(255,255,255,0.6);
  padding: 14px 36px;
  text-decoration: none;
  transition: background 0.25s, color 0.25s, border-color 0.25s;
}
.btn-primary:hover {
  background: #ffffff;
  color: #0d0d0d;
  border-color: #ffffff;
}

.btn-secondary {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #0d0d0d;
  border: 1px solid rgba(0,0,0,0.3);
  padding: 14px 36px;
  text-decoration: none;
  transition: background 0.25s, color 0.25s, border-color 0.25s;
}
.btn-secondary:hover {
  background: #0d0d0d;
  color: #ffffff;
  border-color: #0d0d0d;
}

/* ===== FOOTER ===== */
.footer-link {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.45);
  text-decoration: none;
  transition: color 0.2s;
}
.footer-link:hover { color: rgba(255,255,255,0.85); }

/* ===== PORTFOLIO FILTERS ===== */
.filter-btn {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(0,0,0,0.4);
  background: transparent;
  border: 1px solid rgba(0,0,0,0.12);
  padding: 8px 20px;
  cursor: pointer;
  transition: all 0.25s;
}
.filter-btn:hover {
  color: #0d0d0d;
  border-color: rgba(0,0,0,0.4);
}
.filter-btn.active {
  background: #0d0d0d;
  color: #ffffff;
  border-color: #0d0d0d;
}

/* ===== UTILIDADES ===== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border-width: 0;
}

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .scroll-line::after { display: none; }
  [data-aos] { opacity: 1 !important; transform: none !important; }
}