/**
 * Demo 1: Alejandro Ruiz Arquitectura
 * Simple, minimal architecture portfolio
 * Black & white portfolio images
 */

/* ============================================
   CSS Variables
   ============================================ */
:root {
  --d1-bg: #ffffff;
  --d1-text: #1a1a1a;
  --d1-text-light: #666666;
  --d1-border: #e5e5e5;
  --d1-font-display: 'Cormorant Garamond', Georgia, serif;
  --d1-font-body: 'DM Sans', -apple-system, sans-serif;
}

/* ============================================
   Base Styles
   ============================================ */
.demo1-page {
  background-color: var(--d1-bg);
  color: var(--d1-text);
  font-family: var(--d1-font-body);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

.demo1-page .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ============================================
   Header
   ============================================ */
.demo1-page .site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.5rem 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--d1-border);
}

.demo1-page .header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.demo1-page .site-logo {
  font-family: var(--d1-font-display);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--d1-text);
  text-decoration: none;
}

.demo1-page .site-logo span {
  font-weight: 400;
  font-style: italic;
}

.demo1-page .header-nav {
  display: flex;
  gap: 2rem;
}

.demo1-page .header-nav a {
  font-size: 0.875rem;
  color: var(--d1-text-light);
  text-decoration: none;
  transition: color 0.3s ease;
}

.demo1-page .header-nav a:hover {
  color: var(--d1-text);
}

/* ============================================
   Introduction Section
   ============================================ */
.demo1-page .intro-section {
  padding: 10rem 0 5rem;
}

.demo1-page .intro-content {
  display: flex;
  align-items: center;
  gap: 3rem;
  max-width: 800px;
  margin: 0 auto;
}

/* Circular Photo */
.demo1-page .architect-photo {
  flex-shrink: 0;
}

.demo1-page .architect-photo img {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  object-fit: cover;
  filter: grayscale(100%);
}

.demo1-page .architect-info h1 {
  font-family: var(--d1-font-display);
  font-size: 2rem;
  font-weight: 500;
  margin: 0 0 0.25rem;
}

.demo1-page .architect-info .subtitle {
  font-size: 0.875rem;
  color: var(--d1-text-light);
  margin: 0 0 1rem;
  letter-spacing: 0.05em;
}

.demo1-page .architect-info .bio {
  color: var(--d1-text-light);
  margin: 0 0 1rem;
  line-height: 1.8;
}

/* Social Links */
.demo1-page .social-links {
  display: flex;
  gap: 1rem;
}

.demo1-page .social-links a {
  color: var(--d1-text-light);
  transition: color 0.3s ease;
}

.demo1-page .social-links a:hover {
  color: var(--d1-text);
}

/* ============================================
   Portfolio Section
   ============================================ */
.demo1-page .portfolio-section {
  padding: 3rem 0 5rem;
}

.demo1-page .elpt-portfolio {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Section Header */
.demo1-page .portfolio-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  padding: 0 0.5rem;
}

.demo1-page .portfolio-section-title {
  font-family: var(--d1-font-display);
  font-size: 3rem;
  font-weight: 500;
  margin: 0;
  color: var(--d1-text);
}

/* Portfolio Filters */
.demo1-page .elpt-portfolio-filter {
  display: flex;
  gap: 0.5rem;
}

.demo1-page .portfolio-filter-item {
  padding: 0.5rem 1.25rem;
  background: transparent;
  border: 1px solid var(--d1-border);
  color: var(--d1-text-light);
  font-family: var(--d1-font-body);
  font-size: 0.8125rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.demo1-page .portfolio-filter-item:hover {
  border-color: var(--d1-text);
  color: var(--d1-text);
}

.demo1-page .portfolio-filter-item.item-active {
  background: var(--d1-text);
  border-color: var(--d1-text);
  color: #fff;
}

/* Masonry Grid */
.demo1-page .elpt-portfolio-content {
  display: flex;
  flex-wrap: wrap;
}

.demo1-page .elpt-portfolio-columns-3 .portfolio-item-wrapper {
  width: 33.333%;
  padding: 0.5rem;
}

/* Black & White Images */
.demo1-page .portfolio-item {
  display: block;
  position: relative;
  overflow: hidden;
}

.demo1-page .portfolio-item img {
  width: 100%;
  height: auto;
  display: block;
  filter: grayscale(100%);
  transition: filter 0.5s ease, transform 0.5s ease;
}

.demo1-page .portfolio-item:hover img {
  filter: grayscale(0%);
  transform: scale(1.03);
}

/* Hover Overlay */
.demo1-page .portfolio-item-infos-wrapper {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 2rem 1.5rem;
  background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 100%);
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.4s ease;
}

.demo1-page .portfolio-item:hover .portfolio-item-infos-wrapper {
  opacity: 1;
  transform: translateY(0);
}

.demo1-page .portfolio-item-title-span {
  font-family: var(--d1-font-display);
  font-size: 1.25rem;
  font-weight: 500;
  color: #fff;
  display: block;
}

.demo1-page .elpt-portfolio-cat {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.7);
  letter-spacing: 0.05em;
}

/* ============================================
   Footer
   ============================================ */
.demo1-page .site-footer {
  padding: 4rem 0 2rem;
  background: #fafafa;
  border-top: 1px solid var(--d1-border);
}

.demo1-page .footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.demo1-page .footer-logo {
  font-family: var(--d1-font-display);
  font-size: 1.25rem;
  font-weight: 500;
  margin: 0 0 1rem;
}

.demo1-page .footer-tagline {
  font-size: 0.875rem;
  color: var(--d1-text-light);
  line-height: 1.7;
  max-width: 300px;
}

.demo1-page .footer-column h4 {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--d1-text-light);
  margin: 0 0 1rem;
}

.demo1-page .footer-column ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.demo1-page .footer-column li {
  margin-bottom: 0.5rem;
  font-size: 0.9375rem;
  color: var(--d1-text);
}

.demo1-page .footer-column a {
  color: var(--d1-text);
  text-decoration: none;
  transition: color 0.3s ease;
}

.demo1-page .footer-column a:hover {
  color: var(--d1-text-light);
}

.demo1-page .footer-bottom {
  display: flex;
  justify-content: space-between;
  padding-top: 2rem;
  border-top: 1px solid var(--d1-border);
}

.demo1-page .footer-copyright,
.demo1-page .footer-credits {
  font-size: 0.8125rem;
  color: var(--d1-text-light);
}

.demo1-page .footer-credits a {
  color: var(--d1-text);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 900px) {
  .demo1-page .elpt-portfolio-columns-3 .portfolio-item-wrapper {
    width: 50%;
  }
}

@media (max-width: 768px) {
  .demo1-page .intro-content {
    flex-direction: column;
    text-align: center;
  }

  .demo1-page .header-nav {
    display: none;
  }

  .demo1-page .footer-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .demo1-page .footer-bottom {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }
}

@media (max-width: 600px) {
  .demo1-page .elpt-portfolio-columns-3 .portfolio-item-wrapper {
    width: 100%;
  }
}