/* ========================================
   PREMIUM PORTFOLIO GALLERY DESIGN SYSTEM
   Built for KAS Waterproofing & Building
   ======================================== */

:root {
  /* Brand Colors */
  --navy-primary: #0B1F3A;
  --navy-dark: #07172B;
  --gold-primary: #D4AF37;
  --gold-light: #E3C464;
  --white: #FFFFFF;
  --off-white: #F7F9FC;
  
  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.18);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.24);
  
  /* Shadows */
  --shadow-soft: 0 10px 40px rgba(0, 0, 0, 0.1);
  --shadow-hover: 0 20px 60px rgba(0, 0, 0, 0.2);
  --shadow-gold: 0 8px 24px rgba(212, 175, 55, 0.3);
  
  /* Spacing */
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 24px;
}

/* ========================================
   GLOBAL RESET & BASE
   ======================================== */

body.portfolio-premium {
  margin: 0;
  padding: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #000000;
  color: var(--white);
  overflow-x: hidden;
  line-height: 1.6;
}

.portfolio-container {
  width: 100%;
  margin: 0;
  padding: 0;
}

/* ========================================
   1️⃣ CINEMATIC HERO SECTION
   ======================================== */

.hero-portfolio {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  padding: 120px 6% 80px;
  background: #000000;
  overflow: hidden;
}

.hero-portfolio::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(212, 175, 55, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 20s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(-30px, -30px); }
}

.hero-content {
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-left {
  animation: fadeInUp 1s ease-out;
}

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

.hero-label {
  display: inline-block;
  background: linear-gradient(120deg, var(--gold-primary), var(--gold-light));
  color: var(--navy-dark);
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 20px;
  box-shadow: var(--shadow-gold);
}

.hero-headline {
  font-family: "Playfair Display", Georgia, serif;
  font-size: clamp(3rem, 6vw, 5.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin: 0 0 24px 0;
  color: var(--white);
  letter-spacing: -1px;
}

.hero-subtext {
  font-size: 1.15rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 36px;
  max-width: 540px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-primary-gold {
  background: linear-gradient(135deg, var(--gold-primary), var(--gold-light));
  color: var(--navy-dark);
  padding: 16px 36px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  display: inline-block;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-gold);
}

.btn-primary-gold:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(212, 175, 55, 0.4);
}

.btn-ghost-white {
  border: 2px solid rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.05);
  color: var(--white);
  padding: 14px 34px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  display: inline-block;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

.btn-ghost-white:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-3px);
}

/* Hero Right - Featured Image & Stats */

.hero-right {
  position: relative;
  animation: fadeInRight 1.2s ease-out;
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.hero-featured-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 500px;
  box-shadow: var(--shadow-hover);
}

.hero-featured-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.hero-featured-image:hover img {
  transform: scale(1.05);
}

.hero-image-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60%;
  background: linear-gradient(to top, rgba(7, 23, 43, 0.9) 0%, transparent 100%);
  pointer-events: none;
}

.hero-stats-float {
  position: absolute;
  bottom: -40px;
  left: 20px;
  right: 20px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  z-index: 3;
}

.stat-card {
  padding: 20px;
  text-align: center;
  border-radius: var(--radius-sm);
  backdrop-filter: blur(20px);
  animation: fadeIn 1.5s ease-out;
}

.stat-card:nth-child(2) { animation-delay: 0.2s; }
.stat-card:nth-child(3) { animation-delay: 0.4s; }

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--gold-primary);
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.8);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.glass-effect {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

/* ========================================
   2️⃣ FILTER BAR
   ======================================== */

.filter-section {
  padding: 20px 6%;
  background: var(--navy-primary);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.filter-container {
  max-width: 1400px;
  margin: 0 auto;
}

.filter-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.filter-btn {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--white);
  padding: 12px 28px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.filter-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
}

.filter-btn.active {
  background: linear-gradient(135deg, var(--gold-primary), var(--gold-light));
  color: var(--navy-dark);
  border-color: var(--gold-primary);
  box-shadow: 0 4px 16px rgba(212, 175, 55, 0.3);
}

/* ========================================
   3️⃣ PREMIUM PROJECT GRID
   ======================================== */

.projects-grid-section {
  padding: 60px 6% 80px;
  background: #000000;
}

.projects-grid {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 30px;
}

.project-card-premium {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 460px;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  opacity: 1;
  transform: scale(1);
}

.project-card-premium.hidden {
  opacity: 0;
  transform: scale(0.9);
  height: 0;
  margin: 0;
  padding: 0;
  overflow: hidden;
  pointer-events: none;
}

.project-image-container {
  position: relative;
  width: 100%;
  height: 100%;
}

.project-image-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.project-card-premium:hover img {
  transform: scale(1.1);
}

.project-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(7, 23, 43, 0.95) 0%,
    rgba(7, 23, 43, 0.6) 50%,
    rgba(7, 23, 43, 0.2) 100%
  );
  padding: 30px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.4s ease;
}

.project-card-premium:hover .project-overlay {
  background: linear-gradient(
    to top,
    rgba(7, 23, 43, 0.98) 0%,
    rgba(7, 23, 43, 0.8) 60%,
    rgba(7, 23, 43, 0.4) 100%
  );
}

.project-category-badge {
  display: inline-block;
  align-self: flex-start;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
  color: var(--gold-light);
  padding: 8px 16px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.project-info {
  transform: translateY(20px);
  opacity: 0.9;
  transition: all 0.4s ease;
}

.project-card-premium:hover .project-info {
  transform: translateY(0);
  opacity: 1;
}

.project-title {
  font-family: "Playfair Display", Georgia, serif;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--white);
  margin: 0 0 12px 0;
  line-height: 1.3;
}

.project-excerpt {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.95rem;
  margin: 0 0 20px 0;
  line-height: 1.6;
}

.project-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--gold-light);
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  opacity: 0;
  transform: translateX(-10px);
  transition: all 0.4s ease;
}

.project-card-premium:hover .project-cta {
  opacity: 1;
  transform: translateX(0);
}

.project-card-premium:hover {
  box-shadow: 0 0 0 2px var(--gold-primary);
  transform: translateY(-8px);
}

/* ========================================
   4️⃣ FEATURED PROJECT SECTION
   ======================================== */

.featured-project-section {
  padding: 100px 6%;
  background: #000000;
  position: relative;
  overflow: hidden;
}

.featured-project-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(212, 175, 55, 0.1) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  border-radius: 50%;
}

.featured-content {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.featured-left img {
  width: 100%;
  height: 500px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-hover);
}

.featured-right {
  padding: 50px;
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px);
}

.featured-label {
  display: inline-block;
  background: rgba(212, 175, 55, 0.2);
  border: 1px solid var(--gold-primary);
  color: var(--gold-light);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.featured-title {
  font-family: "Playfair Display", Georgia, serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--white);
  margin: 0 0 30px 0;
  line-height: 1.2;
}

.featured-details {
  display: grid;
  gap: 24px;
  margin-bottom: 36px;
}

.detail-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.detail-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.detail-content h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--gold-light);
  margin: 0 0 6px 0;
}

.detail-content p {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.8);
  margin: 0;
  line-height: 1.6;
}

/* ========================================
   5️⃣ TRUST SECTION
   ======================================== */

.trust-section {
  padding: 80px 6%;
  background: #000000;
  text-align: center;
}

.trust-title {
  font-family: "Playfair Display", Georgia, serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--white);
  margin: 0 0 50px 0;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.trust-cards {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.trust-card {
  padding: 40px 30px;
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px);
  transition: all 0.3s ease;
}

.trust-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}

.trust-icon {
  font-size: 3rem;
  margin-bottom: 20px;
}

.trust-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--gold-light);
  margin: 0 0 12px 0;
}

.trust-card p {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.8);
  margin: 0;
  line-height: 1.7;
}

/* ========================================
   6️⃣ FINAL CTA SECTION
   ======================================== */

.final-cta-section {
  position: relative;
  padding: 120px 6%;
  background: linear-gradient(135deg, var(--gold-primary) 0%, var(--gold-light) 100%);
  text-align: center;
  overflow: hidden;
}

.cta-background-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.1;
  background-image: 
    radial-gradient(circle at 20% 50%, var(--navy-dark) 1px, transparent 1px),
    radial-gradient(circle at 80% 80%, var(--navy-dark) 1px, transparent 1px);
  background-size: 50px 50px;
}

.cta-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  margin: 0 auto;
}

.cta-headline {
  font-family: "Playfair Display", Georgia, serif;
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--navy-dark);
  margin: 0 0 20px 0;
  line-height: 1.2;
}

.cta-subtext {
  font-size: 1.15rem;
  color: rgba(11, 31, 58, 0.8);
  margin: 0 0 40px 0;
  line-height: 1.7;
}

.btn-cta-large {
  background: var(--navy-dark);
  color: var(--white);
  padding: 20px 48px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1.1rem;
  text-decoration: none;
  display: inline-block;
  transition: all 0.3s ease;
  box-shadow: 0 10px 30px rgba(7, 23, 43, 0.3);
}

.btn-cta-large:hover {
  transform: translateY(-4px);
  box-shadow: 0 15px 40px rgba(7, 23, 43, 0.4);
}

/* ========================================
   FOOTER
   ======================================== */

.portfolio-footer {
  padding: 40px 6%;
  background: #000000;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.portfolio-footer p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
  margin: 0;
}

/* ========================================
   SCROLL ANIMATIONS
   ======================================== */

.fade-in-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-out;
}

.fade-in-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 1024px) {
  .hero-content,
  .featured-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-stats-float {
    position: relative;
    bottom: 0;
    margin-top: 30px;
  }

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

  .hero-headline {
    font-size: 3rem;
  }

  .featured-title,
  .trust-title {
    font-size: 2rem;
  }

  .cta-headline {
    font-size: 2.5rem;
  }
}

@media (max-width: 768px) {
  .hero-portfolio {
    min-height: auto;
    padding: 80px 5% 60px;
  }

  .hero-headline {
    font-size: 2.5rem;
  }

  .hero-featured-image {
    height: 350px;
  }

  .filter-section {
    padding: 60px 5% 30px;
  }

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

  .project-card-premium {
    height: 400px;
  }

  .featured-left img {
    height: 350px;
  }

  .featured-right {
    padding: 30px;
  }

  .trust-cards {
    grid-template-columns: 1fr;
  }

  .final-cta-section {
    padding: 80px 5%;
  }

  .cta-headline {
    font-size: 2rem;
  }

  .btn-cta-large {
    padding: 16px 36px;
    font-size: 1rem;
  }
}