/* ============================================
   AORI - Arquitectura Minimalista & BIM
   Unified Stylesheet
   ============================================ */

/* === Reset & Base === */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-primary: #1E1E1E;
  --color-secondary: #F7F5F2;
  --color-accent: #C45A3C;
  --color-accent-hover: #A84A32;
  --color-light: #F7F5F2;
  --color-white: #F7F5F2;
  --color-dark: #1E1E1E;
  --color-gray: #8C8C8C;
  --color-gray-light: #b0b0b0;
  --color-transition: #F7F5F2;
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;
  --transition-smooth: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-fast: all 0.2s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  color: var(--color-dark);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition-fast);
}

img {
  max-width: 100%;
  height: auto;
}

/* === Page Transition Overlay === */
.page-transition {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-transition);
  z-index: 99999;
  pointer-events: none;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.6s cubic-bezier(0.77, 0, 0.175, 1);
}

.page-transition.active {
  transform: scaleX(1);
  transform-origin: left;
}

.page-transition.exit {
  transform: scaleX(0);
  transform-origin: right;
}

/* === LANDING PAGE (Massively Style) === */
.landing-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  overflow: hidden;
}

.landing-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('../images/hero-bg.jpg') center/cover no-repeat;
  opacity: 0.15;
}

.landing-hero .hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 2rem;
  animation: fadeInUp 1s ease-out;
}

.landing-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.landing-hero .subtitle {
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  color: var(--color-gray-light);
  font-weight: 300;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 2rem;
}

.landing-hero .tagline {
  font-family: var(--font-display);
  font-size: clamp(0.9rem, 1.5vw, 1.1rem);
  color: var(--color-gray);
  font-style: italic;
  margin-bottom: 3rem;
  max-width: 600px;
}

.btn-enter {
  display: inline-block;
  padding: 1rem 3rem;
  border: 2px solid var(--color-white);
  color: var(--color-white);
  font-size: 0.9rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.btn-enter::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--color-white);
  transition: var(--transition-smooth);
  z-index: -1;
}

.btn-enter:hover {
  color: var(--color-primary);
}

.btn-enter:hover::before {
  left: 0;
}

.landing-nav {
  position: absolute;
  bottom: 3rem;
  z-index: 2;
  display: flex;
  gap: 2rem;
}

.landing-nav a {
  color: var(--color-gray-light);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.5rem 0;
  border-bottom: 1px solid transparent;
  transition: var(--transition-smooth);
}

.landing-nav a:hover {
  color: var(--color-white);
  border-bottom-color: var(--color-accent);
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  animation: bounce 2s infinite;
}

.scroll-indicator span {
  display: block;
  width: 24px;
  height: 24px;
  border-right: 2px solid var(--color-white);
  border-bottom: 2px solid var(--color-white);
  transform: rotate(45deg);
  opacity: 0.5;
}

/* === PROJECTS GRID (Phantom Style) === */
.projects-page {
  min-height: 100vh;
  background: var(--color-dark);
  color: var(--color-white);
}

.projects-header {
  padding: 4rem 2rem 2rem;
  text-align: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
}

.projects-header h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: 1rem;
}

.projects-header p {
  color: var(--color-gray-light);
  max-width: 600px;
  margin: 0 auto 2rem;
}

/* Filter buttons */
.filter-bar {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.6rem 1.5rem;
  background: transparent;
  border: 1px solid var(--color-gray);
  color: var(--color-gray-light);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: var(--transition-smooth);
  font-family: var(--font-primary);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--color-white);
  color: var(--color-dark);
  border-color: var(--color-white);
}

/* Project tiles grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 0;
  padding: 0;
}

.project-tile {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
}

.project-tile .tile-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.project-tile:hover .tile-image {
  transform: scale(1.05);
}

.project-tile .tile-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.2) 50%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2rem;
  opacity: 0;
  transition: var(--transition-smooth);
}

.project-tile:hover .tile-overlay {
  opacity: 1;
}

.tile-overlay .category {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.tile-overlay h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.tile-overlay p {
  font-size: 0.85rem;
  color: var(--color-gray-light);
  line-height: 1.5;
}

/* Color variations for tiles */
.project-tile.style1 { background: #1E1E1E; }
.project-tile.style2 { background: #2a2a2a; }
.project-tile.style3 { background: #3a3a3a; }
.project-tile.style4 { background: #C45A3C; }
.project-tile.style5 { background: #8C8C8C; }
.project-tile.style6 { background: #4a4a4a; }

/* === PROJECT DETAIL (Kross Style) === */
.project-detail {
  min-height: 100vh;
  background: var(--color-white);
}

.detail-hero {
  position: relative;
  height: 70vh;
  min-height: 500px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.detail-hero .hero-bg {
  position: absolute;
  inset: 0;
  object-fit: cover;
  width: 100%;
  height: 100%;
}

.detail-hero .hero-content {
  position: relative;
  z-index: 2;
  padding: 4rem;
  background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
  width: 100%;
}

.detail-hero .category-badge {
  display: inline-block;
  padding: 0.4rem 1rem;
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.detail-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  color: var(--color-white);
  margin-bottom: 0.5rem;
}

.detail-hero .project-location {
  color: var(--color-gray-light);
  font-size: 0.95rem;
}

/* Detail navigation */
.detail-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 1.5rem 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
  transition: var(--transition-smooth);
}

.detail-nav.scrolled {
  background: rgba(247,245,242,0.95);
  box-shadow: 0 2px 20px rgba(0,0,0,0.1);
  padding: 1rem 3rem;
}

.detail-nav .logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-white);
  transition: var(--transition-smooth);
}

.detail-nav.scrolled .logo {
  color: var(--color-dark);
}

.detail-nav .nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.detail-nav .nav-links a {
  color: var(--color-white);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.3rem 0;
  border-bottom: 2px solid transparent;
  transition: var(--transition-fast);
}

.detail-nav.scrolled .nav-links a {
  color: var(--color-dark);
}

.detail-nav .nav-links a:hover {
  border-bottom-color: var(--color-accent);
}

.back-btn {
  position: fixed;
  top: 2rem;
  left: 2rem;
  z-index: 101;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: rgba(247,245,242,0.15);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: 1.2rem;
  transition: var(--transition-smooth);
  border: 1px solid rgba(247,245,242,0.2);
}

.back-btn:hover {
  background: var(--color-white);
  color: var(--color-dark);
}

/* Detail content */
.detail-content {
  padding: 5rem 0;
}

.detail-content .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.detail-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.detail-description h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  margin-bottom: 1.5rem;
  color: var(--color-dark);
}

.detail-description p {
  color: var(--color-gray);
  line-height: 1.8;
  margin-bottom: 1rem;
  font-size: 1.05rem;
}

.detail-sidebar {
  background: var(--color-light);
  padding: 2.5rem;
  border-radius: 8px;
  height: fit-content;
  position: sticky;
  top: 100px;
}

.detail-sidebar h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--color-accent);
}

.sidebar-item {
  display: flex;
  justify-content: space-between;
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--color-gray-light);
}

.sidebar-item:last-child {
  border-bottom: none;
}

.sidebar-item .label {
  font-size: 0.85rem;
  color: var(--color-gray);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.sidebar-item .value {
  font-weight: 600;
  color: var(--color-dark);
  text-align: right;
}

/* Gallery */
.detail-gallery {
  margin-top: 3rem;
}

.detail-gallery h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  margin-bottom: 2rem;
  color: var(--color-dark);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  aspect-ratio: 16/10;
  cursor: pointer;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

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

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.95);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-smooth);
}

.lightbox.active {
  opacity: 1;
  pointer-events: all;
}

.lightbox img {
  max-width: 90%;
  max-height: 90vh;
  object-fit: contain;
}

.lightbox-close {
  position: absolute;
  top: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  border: none;
  background: transparent;
  color: white;
  font-size: 2rem;
  cursor: pointer;
}

/* BIM Section */
.bim-section {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 5rem 0;
  margin-top: 3rem;
}

.bim-section .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.bim-section h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  margin-bottom: 2rem;
  text-align: center;
}

.bim-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 2rem;
}

.bim-card {
  background: rgba(247,245,242,0.05);
  padding: 2rem;
  border-radius: 8px;
  border: 1px solid rgba(247,245,242,0.1);
  transition: var(--transition-smooth);
}

.bim-card:hover {
  background: rgba(247,245,242,0.1);
  transform: translateY(-5px);
}

.bim-card .icon {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--color-accent);
}

.bim-card h4 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.bim-card p {
  font-size: 0.85rem;
  color: var(--color-gray-light);
  line-height: 1.6;
}

/* Project detail footer */
.detail-footer {
  background: var(--color-light);
  padding: 4rem 0;
}

.project-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.project-nav-item {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  aspect-ratio: 16/9;
  cursor: pointer;
}

.project-nav-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.project-nav-item:hover img {
  transform: scale(1.05);
}

.project-nav-item .nav-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1.5rem;
  background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
  color: var(--color-white);
}

.project-nav-item .nav-label span {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: block;
  margin-bottom: 0.3rem;
}

.project-nav-item .nav-label h4 {
  font-family: var(--font-display);
  font-size: 1.2rem;
}

/* === FOOTER (Unified) === */
.site-footer {
  background: var(--color-primary);
  color: var(--color-gray-light);
  padding: 4rem 0 2rem;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand h3 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--color-white);
  margin-bottom: 1rem;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 350px;
}

.footer-links h4 {
  color: var(--color-white);
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.8rem;
}

.footer-links a {
  font-size: 0.9rem;
  color: var(--color-gray);
  transition: var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-white);
  padding-left: 5px;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(247,245,242,0.1);
  font-size: 0.8rem;
  color: var(--color-gray);
}

/* === ANIMATIONS === */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateX(-50%) translateY(0);
  }
  40% {
    transform: translateX(-50%) translateY(-10px);
  }
  60% {
    transform: translateX(-50%) translateY(-5px);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.animate-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* === RESPONSIVE === */
@media (max-width: 992px) {
  .detail-grid {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-brand p {
    max-width: 100%;
  }

  .projects-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  }

  .project-nav {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .detail-hero {
    height: 50vh;
    min-height: 400px;
  }

  .detail-hero .hero-content {
    padding: 2rem;
  }

  .back-btn {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }

  .detail-nav .nav-links {
    display: none;
  }

  .landing-nav {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }
}

@media (max-width: 480px) {
  .projects-grid {
    grid-template-columns: 1fr;
  }

  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .bim-grid {
    grid-template-columns: 1fr;
  }

  .filter-bar {
    gap: 0.5rem;
  }

  .filter-btn {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
  }
}