/* ==========================================================================
   COMPONENTS.CSS — Global Component Styles
   Architecture & Interior Design Firm Website
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Header & Navigation
   -------------------------------------------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-header);
  height: var(--header-height);
  background: transparent;
  transition: background var(--transition-base), height var(--transition-base);
}

.header.scrolled {
  background: var(--color-bg);
  height: var(--header-height-scrolled);
}

.header-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 var(--container-padding);
}

.header-logo {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-text);
  transition: color var(--transition-base);
}

.header-logo:hover {
  color: var(--color-accent);
}

/* Desktop Navigation */
.nav-list {
  display: flex;
  gap: var(--space-xl);
  align-items: center;
}

.nav-link {
  font-size: var(--font-size-sm);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: var(--space-sm) 0;
  position: relative;
  color: var(--color-text);
  transition: color var(--transition-base);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--transition-base);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-accent);
}

/* Hamburger (mobile) */
.hamburger {
  display: none;
  position: relative;
  z-index: calc(var(--z-overlay) + 1);
}

.hamburger-button {
  width: 32px;
  height: 24px;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: none;
  border: none;
  cursor: pointer;
}

.hamburger-line {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  transition: all var(--transition-base);
  transform-origin: center;
}

.hamburger.is-active .hamburger-line:nth-child(1) {
  transform: translateY(11px) rotate(45deg);
}

.hamburger.is-active .hamburger-line:nth-child(2) {
  opacity: 0;
}

.hamburger.is-active .hamburger-line:nth-child(3) {
  transform: translateY(-11px) rotate(-45deg);
}

/* Mobile Navigation Overlay */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  background: rgba(10, 10, 10, 0.98);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  transform: translateX(100%);
  transition: transform var(--transition-smooth);
}

.mobile-nav.is-open {
  transform: translateX(0);
}

.mobile-nav-list {
  text-align: center;
}

.mobile-nav-item {
  margin: var(--space-md) 0;
}

.mobile-nav-link {
  font-family: var(--font-heading);
  font-size: var(--font-size-4xl);
  font-weight: 300;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-md) 0;
  display: block;
  color: var(--color-text);
  transition: color var(--transition-base);
}

.mobile-nav-link:hover {
  color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   2. Footer
   -------------------------------------------------------------------------- */
.footer {
  background: var(--color-bg-alt);
  padding: var(--space-4xl) 0 var(--space-xl);
  border-top: 1px solid var(--color-border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-3xl);
}

.footer-brand .footer-logo {
  font-family: var(--font-heading);
  font-size: var(--font-size-2xl);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-text);
}

.footer-description {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  margin-top: var(--space-md);
  max-width: 360px;
}

.footer-heading {
  font-size: var(--font-size-xs);
  font-family: var(--font-body);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
}

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

.footer-link {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  transition: color var(--transition-base);
  padding: var(--space-xs) 0;
  display: inline-block;
}

.footer-link:hover {
  color: var(--color-accent);
}

.footer-social {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.footer-social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  transition: all var(--transition-base);
  font-size: var(--font-size-sm);
}

.footer-social-link:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-3xl);
  padding-top: var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.footer-bottom-links {
  display: flex;
  gap: var(--space-lg);
}

.footer-bottom-link {
  color: var(--color-text-muted);
  transition: color var(--transition-base);
}

.footer-bottom-link:hover {
  color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   3. Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: 0;
  transition: all var(--transition-base);
  cursor: pointer;
  border: 1px solid transparent;
  text-decoration: none;
  line-height: 1;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-bg);
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-bg);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(201, 168, 76, 0.3);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-text);
}

.btn-secondary:hover {
  background: var(--color-text);
  color: var(--color-bg);
  transform: translateY(-1px);
}

.btn-lg {
  padding: 1.125rem 2.5rem;
  font-size: var(--font-size-base);
}

.btn-sm {
  padding: 0.625rem 1.25rem;
  font-size: var(--font-size-xs);
}

/* --------------------------------------------------------------------------
   4. Cards
   -------------------------------------------------------------------------- */
.card {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  background: var(--color-bg-alt);
}

.card-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 0.6s var(--transition-smooth);
}

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

.card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(transparent 40%, rgba(0, 0, 0, 0.85));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.card:hover .card-overlay {
  opacity: 1;
}

.card-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-lg);
  transform: translateY(10px);
  transition: transform var(--transition-base), opacity var(--transition-base);
  opacity: 0;
}

.card:hover .card-content {
  transform: translateY(0);
  opacity: 1;
}

.card-title {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  font-weight: 500;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.card-category {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-top: var(--space-xs);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--space-xl);
}

/* --------------------------------------------------------------------------
   5. Section Layout
   -------------------------------------------------------------------------- */
.section-heading {
  font-family: var(--font-heading);
  font-size: var(--font-size-4xl);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin-bottom: var(--space-2xl);
  text-align: center;
}

.section-subheading {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--space-3xl);
  line-height: 1.7;
}

.section-label {
  font-size: var(--font-size-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
  display: block;
}

/* --------------------------------------------------------------------------
   6. Forms
   -------------------------------------------------------------------------- */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-size: var(--font-size-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.875rem 1rem;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: var(--font-size-base);
  font-family: var(--font-body);
  transition: border-color var(--transition-base);
  border-radius: 0;
  outline: none;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--color-accent);
}

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

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23888888' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 12px 8px;
  cursor: pointer;
}

.form-error {
  font-size: var(--font-size-xs);
  color: var(--color-error);
  margin-top: var(--space-xs);
  display: none;
}

.form-input.error,
.form-textarea.error,
.form-select.error {
  border-color: var(--color-error);
}

.form-input.error ~ .form-error,
.form-textarea.error ~ .form-error,
.form-select.error ~ .form-error {
  display: block;
}

/* --------------------------------------------------------------------------
   7. Hero Sections
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}

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

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.3) 0%,
    rgba(0, 0, 0, 0.6) 100%
  );
}

.hero-content {
  position: absolute;
  bottom: 15%;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  width: 100%;
  max-width: var(--container-narrow);
  padding: 0 var(--container-padding);
}

.hero-title {
  font-family: var(--font-heading);
  font-size: var(--font-size-6xl);
  font-weight: 300;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  max-width: 500px;
  margin: 0 auto;
  font-weight: 300;
}

.hero-scroll-indicator {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  animation: scroll-bounce 2s ease-in-out infinite;
}

@keyframes scroll-bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* Page hero (smaller hero for inner pages) */
.page-hero {
  position: relative;
  width: 100%;
  height: 50vh;
  min-height: 400px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
}

.page-hero-title {
  position: relative;
  z-index: 1;
  font-family: var(--font-heading);
  font-size: var(--font-size-5xl);
  font-weight: 300;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text);
  text-align: center;
}

/* --------------------------------------------------------------------------
   8. Images & Media
   -------------------------------------------------------------------------- */
.img-full-bleed {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.img-loading {
  opacity: 0;
  transition: opacity var(--transition-base);
}

.img-loaded {
  opacity: 1;
}

/* Image gallery grid */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

.gallery-grid .gallery-item:first-child {
  grid-column: 1 / -1;
}

.gallery-item {
  overflow: hidden;
  cursor: pointer;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--transition-smooth);
}

.gallery-item:hover img {
  transform: scale(1.03);
}

/* --------------------------------------------------------------------------
   9. Page-specific hero sizes
   -------------------------------------------------------------------------- */
.hero-sm {
  height: 40vh;
  min-height: 300px;
}

/* --------------------------------------------------------------------------
   10. Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
  .hamburger {
    display: block;
  }

  .nav-list {
    display: none;
  }

  .header-logo {
    font-size: var(--font-size-base);
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

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

  .section-heading {
    font-size: var(--font-size-3xl);
  }

  .section {
    padding: var(--space-3xl) 0;
  }

  .hero-title {
    font-size: var(--font-size-4xl);
  }

  .hero-subtitle {
    font-size: var(--font-size-base);
  }

  .page-hero-title {
    font-size: var(--font-size-3xl);
  }

  .page-hero {
    height: 35vh;
    min-height: 280px;
  }

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

  .gallery-grid .gallery-item:first-child {
    grid-column: 1;
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }

  .mobile-nav-link {
    font-size: var(--font-size-3xl);
  }

  .container,
  .container-narrow {
    padding: 0 var(--space-md);
  }
}