/* ============================================
   Harde Samir Murshid — Portfolio 2026
   Modern Cinematic Design System
   ============================================ */

/* --- Design Tokens --- */
:root {
  --color-bg: #0a0a0a;
  --color-surface: #141414;
  --color-surface-elevated: #1a1a1a;
  --color-gold: #c9930d;
  --color-gold-light: #e6a814;
  --color-gold-glow: rgba(201, 147, 13, 0.25);
  --color-text: #f0f0f0;
  --color-text-muted: #999;
  --color-text-subtle: #666;
  --color-border: rgba(201, 147, 13, 0.12);
  --color-border-hover: rgba(201, 147, 13, 0.3);
  --color-overlay: rgba(10, 10, 10, 0.6);

  --font-heading: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  --transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-fast: 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-slow: 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.5);
  --shadow-gold: 0 8px 32px rgba(201, 147, 13, 0.15);

  --max-width: 1200px;
  --section-padding: clamp(3rem, 8vw, 6rem) clamp(1rem, 4vw, 2rem);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.25rem 2rem;
  transition: background var(--transition), padding var(--transition), box-shadow var(--transition);
  background: transparent;
}

.nav.scrolled {
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 0.75rem 2rem;
  box-shadow: 0 1px 0 var(--color-border);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--max-width);
  margin: 0 auto;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-gold);
  letter-spacing: 0.05em;
  transition: opacity var(--transition-fast);
}

.nav-logo:hover {
  opacity: 0.8;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 0.5rem;
  align-items: center;
}

.nav-links a {
  color: var(--color-text);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  transition: color var(--transition-fast), background var(--transition-fast);
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-gold);
  background: rgba(201, 147, 13, 0.08);
}

/* Hamburger Menu */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1001;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
}

.hamburger {
  width: 24px;
  height: 2px;
  background: var(--color-gold);
  display: block;
  position: relative;
  border-radius: 2px;
  transition: background var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--color-gold);
  border-radius: 2px;
  transition: transform var(--transition), top var(--transition);
}

.hamburger::before { top: -7px; }
.hamburger::after { top: 7px; }

.nav-toggle.active .hamburger {
  background: transparent;
}

.nav-toggle.active .hamburger::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-toggle.active .hamburger::after {
  top: 0;
  transform: rotate(-45deg);
}

/* Mobile nav overlay */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10, 10, 10, 0.98);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  z-index: 999;
  opacity: 0;
  transition: opacity var(--transition);
}

.nav-overlay.active {
  opacity: 1;
}

/* --- Hero Section --- */
.hero {
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.hero-slider {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.hero-slide.active {
  opacity: 1;
}

.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    var(--color-bg) 0%,
    rgba(10, 10, 10, 0.4) 40%,
    rgba(10, 10, 10, 0.2) 60%,
    rgba(10, 10, 10, 0.5) 100%
  );
  pointer-events: none;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 850px;
  padding: 2rem;
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.12em;
  margin-bottom: 0.75rem;
  line-height: 1.1;
  opacity: 0;
  transform: translateY(30px);
  animation: heroReveal 1s ease-out 0.2s forwards;
}

.hero .tagline {
  font-family: var(--font-body);
  font-size: clamp(1rem, 2vw, 1.4rem);
  color: var(--color-gold);
  font-weight: 300;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  opacity: 0;
  transform: translateY(20px);
  animation: heroReveal 1s ease-out 0.5s forwards;
}

.hero .description {
  font-size: clamp(0.95rem, 1.5vw, 1.1rem);
  color: rgba(255, 255, 255, 0.75);
  max-width: 600px;
  margin: 0 auto 2.5rem;
  line-height: 1.8;
  opacity: 0;
  transform: translateY(20px);
  animation: heroReveal 1s ease-out 0.8s forwards;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2.5rem;
  background: var(--color-gold);
  color: #000;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  opacity: 0;
  transform: translateY(20px);
  animation: heroReveal 1s ease-out 1.1s forwards;
}

.cta-button:hover {
  background: var(--color-gold-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--color-gold-glow);
}

.gallery-info {
  margin-top: 1.25rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  opacity: 0;
  animation: heroReveal 1s ease-out 1.3s forwards;
}

.gallery-info i {
  color: var(--color-gold);
  margin-right: 0.3rem;
}

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

/* --- Sections (shared) --- */
.section {
  padding: var(--section-padding);
  max-width: var(--max-width);
  margin: 0 auto;
  opacity: 0;
  transform: translateY(40px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.section.visible {
  opacity: 1;
  transform: translateY(0);
}

.section h2 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  text-align: center;
  margin-bottom: 1rem;
  color: var(--color-text);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.section-subtitle {
  text-align: center;
  color: var(--color-gold);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 3.5rem;
  font-weight: 500;
}

/* Gold accent line under section titles */
.section h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 2px;
  background: linear-gradient(to right, var(--color-gold), var(--color-gold-light));
  margin: 1rem auto 0;
  border-radius: 2px;
}

/* --- About Section --- */
.about-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.about-image {
  position: relative;
}

.about-image img {
  width: 100%;
  border-radius: var(--radius-md);
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border: 1px solid var(--color-border);
  transition: transform var(--transition);
}

.about-image::after {
  content: '';
  position: absolute;
  inset: 8px;
  border: 1px solid var(--color-gold);
  border-radius: var(--radius-md);
  opacity: 0.3;
  pointer-events: none;
  transition: opacity var(--transition);
}

.about-image:hover img {
  transform: scale(1.02);
}

.about-image:hover::after {
  opacity: 0.5;
}

.about-text p {
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--color-text-muted);
}

.about-text p:first-child {
  font-size: 1.1rem;
  color: var(--color-text);
}

.about-text strong {
  color: var(--color-text);
  font-weight: 600;
}

/* --- Experience Section --- */
.experience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.experience-item {
  background: var(--color-surface);
  padding: 2rem;
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-gold);
  border-top: none;
  border-right: none;
  border-bottom: none;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  position: relative;
}

.experience-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  background: var(--color-surface-elevated);
}

.experience-item h3 {
  font-family: var(--font-heading);
  color: var(--color-text);
  font-size: 1.3rem;
  margin-bottom: 0.75rem;
  font-weight: 600;
}

.experience-item > p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
  line-height: 1.7;
}

.experience-item ul {
  list-style: none;
  padding-left: 0;
}

.experience-item li {
  padding: 0.6rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  color: var(--color-text-muted);
  font-size: 0.95rem;
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
}

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

.experience-item li::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-gold);
  flex-shrink: 0;
  margin-top: 0.5em;
}

/* --- Portfolio Section --- */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.portfolio-item {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
  border: 1px solid var(--color-border);
}

.portfolio-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-gold);
  border-color: var(--color-border-hover);
}

.portfolio-item-image {
  overflow: hidden;
  position: relative;
}

.portfolio-item-image img {
  width: 100%;
  object-fit: contain;
  transition: transform var(--transition-slow);
  background: var(--color-surface);
}

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

.portfolio-item-content {
  padding: 1.75rem;
}

.portfolio-item-content h3 {
  font-family: var(--font-heading);
  color: var(--color-text);
  font-size: 1.3rem;
  margin-bottom: 0.75rem;
  font-weight: 600;
}

.portfolio-item-content p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

.award-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--color-gold);
  color: #000;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  z-index: 10;
  box-shadow: 0 4px 16px var(--color-gold-glow);
}

/* --- Contact Section --- */
.contact-content {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.contact-info h3 {
  font-family: var(--font-heading);
  color: var(--color-text);
  font-size: 1.4rem;
  margin-bottom: 2rem;
  font-weight: 600;
}

.contact-info p {
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  transition: color var(--transition-fast);
}

.contact-info p:hover {
  color: var(--color-text);
}

.contact-info i {
  color: var(--color-gold);
  width: 20px;
  text-align: center;
  font-size: 1rem;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-form input,
.contact-form textarea {
  padding: 1rem 1.25rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
  outline: none;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--color-gold);
  background: var(--color-surface-elevated);
  box-shadow: 0 0 0 3px var(--color-gold-glow);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--color-text-subtle);
}

.contact-form textarea {
  min-height: 150px;
  resize: vertical;
}

.contact-form button {
  padding: 1rem 2rem;
  background: var(--color-gold);
  color: #000;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: all var(--transition);
}

.contact-form button:hover {
  background: var(--color-gold-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--color-gold-glow);
}

/* --- Footer --- */
footer {
  background: var(--color-surface);
  padding: 3rem 2rem 2rem;
  text-align: center;
  border-top: 1px solid var(--color-border);
  margin-top: 2rem;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.social-links a {
  color: var(--color-text-muted);
  font-size: 1.25rem;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}

.social-links a:hover {
  color: var(--color-gold);
  border-color: var(--color-gold);
  background: rgba(201, 147, 13, 0.08);
  transform: translateY(-2px);
}

footer p {
  color: var(--color-text-subtle);
  font-size: 0.85rem;
  letter-spacing: 0.02em;
}

/* --- Gallery Section (gallery.njk page) --- */
.section.gallery {
  background: var(--color-bg);
  min-height: 100vh;
  padding: 6rem 0 2rem 0;
  max-width: 100%;
}

.section.gallery h2 {
  color: var(--color-text);
  text-align: center;
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 2rem;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  max-width: var(--max-width);
  margin: 2rem auto 0;
  padding: 0 1.5rem;
}

.card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-border-hover);
}

.card a {
  display: block;
  text-decoration: none;
}

.card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  background: var(--color-surface);
  display: block;
  transition: transform var(--transition-slow);
}

.card:hover img {
  transform: scale(1.05);
}

/* Gallery filter buttons */
.gallery-filters {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.5rem 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: transparent;
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  border-color: var(--color-gold);
  color: var(--color-gold);
  background: rgba(201, 147, 13, 0.08);
}

/* Gallery lightbox */
.lightbox-overlay {
  background: rgba(10, 10, 10, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

/* --- Swiper overrides --- */
.swiper {
  width: 100%;
  padding-bottom: 3rem;
  padding-top: 1rem;
}

.swiper-slide {
  display: flex;
  justify-content: center;
  align-items: stretch;
  height: auto;
}

.swiper-slide .card {
  width: 100%;
  max-width: 350px;
  margin: 0 auto;
  height: 100%;
}

.swiper-button-next,
.swiper-button-prev {
  color: var(--color-gold);
  background: rgba(10, 10, 10, 0.6);
  border-radius: 50%;
  width: 44px;
  height: 44px;
  top: 45%;
  transition: background var(--transition-fast);
}

.swiper-button-next:hover,
.swiper-button-prev:hover {
  background: rgba(10, 10, 10, 0.9);
}

.swiper-button-next::after,
.swiper-button-prev::after {
  font-size: 1rem;
}

.swiper-pagination-bullet {
  background: var(--color-text-subtle);
  opacity: 1;
  transition: all var(--transition-fast);
}

.swiper-pagination-bullet-active {
  background: var(--color-gold);
  transform: scale(1.2);
}

/* --- Scroll reveal animation --- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Staggered children reveal */
.section.visible .experience-item,
.section.visible .portfolio-item,
.section.visible .about-image,
.section.visible .about-text,
.section.visible .contact-info,
.section.visible .contact-form {
  opacity: 0;
  animation: fadeInUp 0.6s ease-out forwards;
}

.section.visible .experience-item:nth-child(1),
.section.visible .about-image,
.section.visible .contact-info { animation-delay: 0.1s; }

.section.visible .experience-item:nth-child(2),
.section.visible .about-text,
.section.visible .contact-form { animation-delay: 0.25s; }

.section.visible .experience-item:nth-child(3) { animation-delay: 0.4s; }

.section.visible .portfolio-item:nth-child(1) { animation-delay: 0.1s; }
.section.visible .portfolio-item:nth-child(2) { animation-delay: 0.25s; }
.section.visible .portfolio-item:nth-child(3) { animation-delay: 0.4s; }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .portfolio-grid {
    grid-template-columns: 1fr;
    max-width: 550px;
    margin-left: auto;
    margin-right: auto;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(10, 10, 10, 0.98);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    z-index: 999;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    font-size: 1.25rem;
    padding: 1rem 2rem;
  }

  .hero h1 {
    letter-spacing: 0.06em;
  }

  .about-content {
    grid-template-columns: 1fr;
    text-align: center;
    max-width: 550px;
    margin-left: auto;
    margin-right: auto;
  }

  .about-image {
    max-width: 300px;
    margin: 0 auto;
  }

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

  .contact-content {
    grid-template-columns: 1fr;
  }

  .gallery {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    padding: 0 1rem;
  }
}

@media (max-width: 480px) {
  .hero-content {
    padding: 1.5rem;
  }

  .gallery {
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    padding: 0 0.75rem;
  }

  .card img {
    aspect-ratio: 1 / 1;
  }

  .section {
    padding: 3rem 1rem;
  }

  .contact-form input,
  .contact-form textarea {
    padding: 0.85rem 1rem;
  }
}