/* ============================================
   The Gallery SW3 - London Photography Studio
   ============================================ */

/* CSS Variables */
:root {
  --color-charcoal: #1a1a1a;
  --color-charcoal-light: #2d2d2d;
  --color-champagne: #c9a87c;
  --color-champagne-light: #dfc9a8;
  --color-cream: #f8f6f3;
  --color-white: #ffffff;
  --color-grey: #6b6b6b;
  --color-grey-light: #e8e6e3;
  
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 8rem;
  
  --transition-fast: 0.2s ease;
  --transition-smooth: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-charcoal);
  background-color: var(--color-cream);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
  list-style: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.5rem, 8vw, 5rem);
}

h2 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
  max-width: 65ch;
}

.text-champagne {
  color: var(--color-champagne);
}

.text-center {
  text-align: center;
}

/* Layout */
.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-xl) 0;
}

.section--dark {
  background-color: var(--color-charcoal);
  color: var(--color-white);
}

.section--cream {
  background-color: var(--color-cream);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--spacing-sm) 0;
  background-color: rgba(248, 246, 243, 0.95);
  backdrop-filter: blur(10px);
  transition: background-color var(--transition-smooth), box-shadow var(--transition-smooth);
}

.header.scrolled {
  box-shadow: 0 1px 0 var(--color-grey-light);
}

.header__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.logo span {
  color: var(--color-champagne);
}

.nav__list {
  display: flex;
  gap: var(--spacing-md);
}

.nav__link {
  font-size: 0.875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-champagne);
  transition: width var(--transition-smooth);
}

.nav__link:hover::after,
.nav__link.active::after {
  width: 100%;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-charcoal);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background-color: var(--color-charcoal);
  color: var(--color-white);
}

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

.hero__background img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.5;
}

.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-md);
  max-width: 900px;
}

.hero__subtitle {
  font-family: var(--font-body);
  font-size: 0.875rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-champagne);
  margin-bottom: var(--spacing-sm);
}

.hero__title {
  margin-bottom: var(--spacing-md);
}

.hero__description {
  font-size: 1.125rem;
  opacity: 0.9;
  margin: 0 auto var(--spacing-lg);
  max-width: 600px;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 1rem 2.5rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-smooth);
}

.btn--primary {
  background-color: var(--color-champagne);
  color: var(--color-charcoal);
}

.btn--primary:hover {
  background-color: var(--color-champagne-light);
}

.btn--outline {
  background-color: transparent;
  border-color: var(--color-white);
  color: var(--color-white);
}

.btn--outline:hover {
  background-color: var(--color-white);
  color: var(--color-charcoal);
}

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

.btn--dark:hover {
  background-color: var(--color-charcoal-light);
}

/* Section Header */
.section-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.section-header__eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-champagne);
  margin-bottom: var(--spacing-xs);
}

.section-header__title {
  margin-bottom: var(--spacing-sm);
}

.section-header__line {
  width: 60px;
  height: 1px;
  background-color: var(--color-champagne);
  margin: 0 auto;
}

/* Grid Layouts */
.grid {
  display: grid;
  gap: var(--spacing-md);
}

.grid--2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid--4 {
  grid-template-columns: repeat(4, 1fr);
}

/* Services Cards */
.service-card {
  padding: var(--spacing-lg);
  background-color: var(--color-white);
  text-align: center;
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.service-card__icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--spacing-sm);
  color: var(--color-champagne);
}

.service-card__title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xs);
}

.service-card__text {
  font-size: 0.9375rem;
  color: var(--color-grey);
}

/* Portfolio Grid */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xs);
}

.portfolio-item {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  cursor: pointer;
}

.portfolio-item--wide {
  grid-column: span 2;
  aspect-ratio: 2;
}

.portfolio-item--tall {
  grid-row: span 2;
  aspect-ratio: 0.5;
}

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

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

.portfolio-item__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26, 26, 26, 0.8) 0%, transparent 50%);
  display: flex;
  align-items: flex-end;
  padding: var(--spacing-md);
  opacity: 0;
  transition: opacity var(--transition-smooth);
}

.portfolio-item:hover .portfolio-item__overlay {
  opacity: 1;
}

.portfolio-item__title {
  color: var(--color-white);
  font-size: 1.25rem;
}

/* About Section */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
}

.about__image {
  position: relative;
}

.about__image img {
  width: 100%;
  height: auto;
}

.about__image::before {
  content: '';
  position: absolute;
  top: -20px;
  left: -20px;
  width: 100%;
  height: 100%;
  border: 1px solid var(--color-champagne);
  z-index: -1;
}

.about__content h2 {
  margin-bottom: var(--spacing-md);
}

.about__content p {
  margin-bottom: var(--spacing-sm);
  color: var(--color-grey);
}

/* Testimonial */
.testimonial {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.testimonial__quote {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-style: italic;
  line-height: 1.5;
  margin-bottom: var(--spacing-md);
}

.testimonial__author {
  font-size: 0.875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-champagne);
}

/* CTA Section */
.cta {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-md);
  background: linear-gradient(135deg, var(--color-charcoal) 0%, var(--color-charcoal-light) 100%);
}

.cta h2 {
  color: var(--color-white);
  margin-bottom: var(--spacing-sm);
}

.cta p {
  color: rgba(255, 255, 255, 0.8);
  margin: 0 auto var(--spacing-md);
  max-width: 500px;
}

/* Team Grid */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
}

.team-card {
  text-align: center;
}

.team-card__image {
  aspect-ratio: 3/4;
  overflow: hidden;
  margin-bottom: var(--spacing-sm);
}

.team-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%);
  transition: filter var(--transition-smooth);
}

.team-card:hover .team-card__image img {
  filter: grayscale(0%);
}

.team-card__name {
  font-size: 1.125rem;
  margin-bottom: 0.25rem;
}

.team-card__role {
  font-size: 0.8125rem;
  color: var(--color-champagne);
  letter-spacing: 0.05em;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
}

.contact-info__item {
  margin-bottom: var(--spacing-md);
}

.contact-info__label {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-champagne);
  margin-bottom: var(--spacing-xs);
}

.contact-info__value {
  font-size: 1.125rem;
}

.contact-form .form-group {
  margin-bottom: var(--spacing-sm);
}

.contact-form label {
  display: block;
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  border: 1px solid var(--color-grey-light);
  background-color: var(--color-white);
  transition: border-color var(--transition-fast);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-champagne);
}

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

/* Footer */
.footer {
  background-color: var(--color-charcoal);
  color: var(--color-white);
  padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer__brand {
  max-width: 300px;
}

.footer__logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--spacing-sm);
}

.footer__logo span {
  color: var(--color-champagne);
}

.footer__description {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.6;
}

.footer__title {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-champagne);
  margin-bottom: var(--spacing-sm);
}

.footer__links li {
  margin-bottom: 0.75rem;
}

.footer__links a {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
}

.footer__links a:hover {
  color: var(--color-white);
}

.footer__bottom {
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer__copyright {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.5);
}

.footer__social {
  display: flex;
  gap: var(--spacing-sm);
}

.footer__social a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.7);
  transition: all var(--transition-fast);
}

.footer__social a:hover {
  border-color: var(--color-champagne);
  color: var(--color-champagne);
}

/* Page Hero */
.page-hero {
  padding-top: 120px;
  padding-bottom: var(--spacing-lg);
  background-color: var(--color-charcoal);
  color: var(--color-white);
  text-align: center;
}

.page-hero__eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-champagne);
  margin-bottom: var(--spacing-xs);
}

.page-hero__title {
  margin-bottom: var(--spacing-sm);
}

.page-hero__line {
  width: 60px;
  height: 1px;
  background-color: var(--color-champagne);
  margin: 0 auto;
}

/* Stats */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
  text-align: center;
}

.stat__number {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  color: var(--color-champagne);
  line-height: 1;
  margin-bottom: var(--spacing-xs);
}

.stat__label {
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-grey);
}

/* Services Detail */
.service-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
  padding: var(--spacing-lg) 0;
  border-bottom: 1px solid var(--color-grey-light);
}

.service-detail:nth-child(even) {
  direction: rtl;
}

.service-detail:nth-child(even) > * {
  direction: ltr;
}

.service-detail__image {
  aspect-ratio: 4/3;
  overflow: hidden;
}

.service-detail__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.service-detail__content h3 {
  margin-bottom: var(--spacing-sm);
}

.service-detail__content p {
  color: var(--color-grey);
  margin-bottom: var(--spacing-sm);
}

.service-detail__list {
  margin-bottom: var(--spacing-sm);
}

.service-detail__list li {
  padding-left: 1.5rem;
  position: relative;
  color: var(--color-grey);
  margin-bottom: 0.5rem;
}

.service-detail__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 8px;
  height: 1px;
  background-color: var(--color-champagne);
}

/* Map */
.map {
  height: 400px;
  background-color: var(--color-grey-light);
  display: flex;
  align-items: center;
  justify-content: center;
}

.map__placeholder {
  text-align: center;
  color: var(--color-grey);
}

/* Responsive */
@media (max-width: 1024px) {
  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background-color: var(--color-cream);
    padding: var(--spacing-md);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-smooth);
  }
  
  .nav.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .nav__list {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .nav__toggle {
    display: flex;
  }
  
  .nav__toggle.active span:first-child {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .nav__toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .nav__toggle.active span:last-child {
    transform: rotate(-45deg) translate(5px, -5px);
  }
  
  .grid--2,
  .grid--3 {
    grid-template-columns: 1fr;
  }
  
  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .about__image::before {
    display: none;
  }
  
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .portfolio-item--wide {
    grid-column: span 2;
  }
  
  .portfolio-item--tall {
    grid-row: span 1;
    aspect-ratio: 1;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .footer__bottom {
    flex-direction: column;
    gap: var(--spacing-sm);
    text-align: center;
  }
  
  .service-detail {
    grid-template-columns: 1fr;
    direction: ltr;
  }
  
  .service-detail:nth-child(even) {
    direction: ltr;
  }
}

@media (max-width: 480px) {
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
  
  .portfolio-item--wide {
    grid-column: span 1;
    aspect-ratio: 16/9;
  }
  
  .stats {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }
}

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

.animate-fade-in-up {
  animation: fadeInUp 0.8s ease forwards;
}

.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }
.animate-delay-4 { animation-delay: 0.4s; }