/* ===================================================================
   Meridian Land Studio — Organic Luxury Design System
   =================================================================== */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;0,700;1,300;1,400&family=Jost:wght@300;400;500&display=swap');

/* --- Custom Properties --- */
:root {
  --color-bg:        #f3ece3;
  --color-bg-warm:   #ebe3d8;
  --color-text:      #002a0f;
  --color-text-light:#3a5c45;
  --color-accent:    #bae68c;
  --color-accent-hover: #a8d87a;
  --color-ochre:     #8fbf6a;
  --color-divider:   #c8bfb2;
  --color-overlay:   rgba(0, 42, 15, 0.85);

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'Jost', 'Helvetica Neue', sans-serif;

  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  2rem;
  --space-lg:  4rem;
  --space-xl:  7rem;
  --space-xxl: 11rem;

  --max-width: 1280px;
  --max-width-narrow: 860px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-weight: 300;
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.75;
  letter-spacing: 0.01em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

::selection {
  background: var(--color-accent);
  color: var(--color-text);
}

/* Focus states */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

/* Skip navigation link */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 9999;
  padding: 0.8rem 1.5rem;
  background: var(--color-text);
  color: var(--color-bg);
  font-family: var(--font-body);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  text-decoration: none;
  border-radius: 0 0 4px 4px;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 0;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .fade-in {
    opacity: 1;
    transform: none;
  }
}

/* --- Typography --- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.8rem, 6vw, 5.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3.5rem); }
h3 { font-size: clamp(1.5rem, 2.5vw, 2rem); }
h4 { font-size: clamp(1.2rem, 1.8vw, 1.5rem); }

p {
  font-size: clamp(0.95rem, 1.1vw, 1.1rem);
  max-width: 60ch;
}

.small-caps {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

/* --- Navigation --- */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.5rem 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background-color 0.4s ease, padding 0.4s ease;
}

.site-nav.scrolled {
  background-color: rgba(243, 236, 227, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 1rem 2.5rem;
}

.site-nav__logo {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--color-text);
}

.site-nav__logo--light {
  color: var(--color-bg);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.5);
}

.site-nav.scrolled .site-nav__logo--light {
  text-shadow: none;
}

.site-nav.scrolled .site-nav__logo--light {
  color: var(--color-text);
}

.site-nav__links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  list-style: none;
}

.site-nav__links a {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text);
  position: relative;
  padding-bottom: 2px;
}

.site-nav__links--light a {
  color: var(--color-bg);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.5);
}

.site-nav.scrolled .site-nav__links--light a {
  color: var(--color-text);
  text-shadow: none;
}

.site-nav__links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width 0.3s ease;
}

.site-nav__links a:hover::after,
.site-nav__links a[aria-current="page"]::after {
  width: 100%;
}

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 0;
  z-index: 1001;
}

.nav-toggle span {
  display: block;
  height: 1.5px;
  background: var(--color-text);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-toggle--light span {
  background: var(--color-bg);
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.4));
}

.site-nav.scrolled .nav-toggle--light span {
  background: var(--color-text);
  filter: none;
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(4px, 5px);
}
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(4px, -5px);
}

/* Mobile overlay */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--color-bg);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.mobile-menu.open {
  display: flex;
  opacity: 1;
}

.mobile-menu a {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 400;
  color: var(--color-text);
  letter-spacing: 0.02em;
}

.mobile-menu a:hover {
  color: var(--color-accent);
}

/* --- Hero (Home) --- */
.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
}

.hero__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      to bottom,
      rgba(0, 42, 15, 0.45) 0%,
      transparent 30%
    ),
    linear-gradient(
      to top,
      rgba(0, 42, 15, 0.6) 0%,
      rgba(0, 42, 15, 0.2) 40%,
      transparent 65%
    );
}

.hero__content {
  position: absolute;
  bottom: 12%;
  left: 5%;
  color: var(--color-bg);
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 6rem);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 0.6rem;
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.35);
}

.hero__tagline {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: clamp(0.9rem, 1.3vw, 1.15rem);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
}

/* --- Sections --- */
.section {
  padding: var(--space-xxl) var(--space-md);
}

.section--reduced {
  padding: var(--space-xl) var(--space-md);
}

.section__inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section__inner--narrow {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
}

/* Fade-in on scroll */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* --- Divider --- */
.divider {
  width: 60px;
  height: 2px;
  background: var(--color-accent);
  margin: var(--space-lg) 0;
}

.divider--center {
  margin-left: auto;
  margin-right: auto;
}

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

.about__text h2 {
  margin-bottom: var(--space-sm);
}

.about__text p {
  color: var(--color-text-light);
  margin-bottom: var(--space-sm);
}

.about__image {
  width: 100%;
  height: 550px;
  object-fit: cover;
}

/* --- Featured Projects (Home) --- */
.featured {
  text-align: center;
}

.featured h2 {
  margin-bottom: var(--space-xs);
}

.featured__subtitle {
  color: var(--color-text-light);
  margin-bottom: var(--space-xl);
  margin-left: auto;
  margin-right: auto;
}

.featured__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.featured__item {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3 / 4;
}

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

.featured__item:hover img {
  transform: scale(1.04);
}

.featured__item-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1.5rem;
  background: linear-gradient(to top, rgba(0, 42, 15, 0.7), transparent);
  color: var(--color-bg);
  text-align: left;
  opacity: 0;
  transition: opacity 0.4s ease;
}

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

.featured__item-overlay h4 {
  font-family: var(--font-display);
  font-weight: 400;
  margin-bottom: 0.2rem;
}

.featured__item-overlay span {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  opacity: 0.9;
}

/* --- Section Variants --- */
.section--white {
  background-color: #ffffff;
}

/* --- Quote Block --- */
.quote-block {
  background-color: var(--color-text);
  color: var(--color-bg);
}

.quote-block .divider {
  background: var(--color-accent);
}

.quote-block__text {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.6rem);
  font-weight: 300;
  font-style: italic;
  line-height: 1.4;
  max-width: 42ch;
  margin: 0 auto var(--space-md);
  color: var(--color-bg);
}

.quote-block__attribution {
  color: var(--color-accent);
  margin: 0 auto;
}

/* --- CTA Section --- */
.cta {
  text-align: center;
  background: var(--color-bg-warm);
}

.cta h2 {
  margin-bottom: var(--space-sm);
}

.cta p {
  color: var(--color-text-light);
  margin: 0 auto var(--space-lg);
}

.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 1rem 2.8rem;
  border: 1px solid var(--color-text);
  color: var(--color-text);
  transition: background-color 0.3s ease, color 0.3s ease;
}

.btn:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-text);
}

/* --- Gallery Page --- */
.page-header {
  padding: 10rem var(--space-md) var(--space-md);
  text-align: center;
}

.page-header h1 {
  margin-bottom: var(--space-xs);
}

.page-header p {
  color: var(--color-text-light);
  margin: 0 auto;
}

/* Gallery Filters */
.gallery-filters {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  max-width: var(--max-width);
  margin: 0 auto var(--space-lg);
  padding: 0 var(--space-md);
}

.gallery-filter {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.6rem 1.4rem;
  border: 1px solid var(--color-divider);
  color: var(--color-text-light);
  background: transparent;
  cursor: pointer;
  transition: all 0.3s ease;
}

.gallery-filter:hover {
  border-color: var(--color-accent);
  color: var(--color-text);
}

.gallery-filter.active {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-text);
}

.gallery-item.hidden {
  display: none;
}

.gallery-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md) var(--space-xxl);
  columns: 3;
  column-gap: var(--space-md);
}

.gallery-item {
  break-inside: avoid;
  margin-bottom: var(--space-md);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.gallery-item img {
  width: 100%;
  display: block;
  transition: transform 0.6s ease;
}

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

.gallery-item__overlay {
  position: absolute;
  inset: 0;
  background: var(--color-overlay);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.4s ease;
  color: var(--color-bg);
  text-align: center;
  padding: var(--space-md);
}

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

.gallery-item__overlay h3 {
  font-family: var(--font-display);
  font-weight: 400;
  margin-bottom: 0.5rem;
}

.gallery-item__overlay span {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  opacity: 0.9;
}

/* --- Lightbox --- */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 42, 15, 0.92);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  overflow-y: auto;
  padding: var(--space-lg) var(--space-md);
}

.lightbox.open {
  display: flex;
  align-items: flex-start;
  justify-content: center;
}

.lightbox__inner {
  max-width: 960px;
  width: 100%;
  color: var(--color-bg);
  animation: lightboxIn 0.4s ease;
}

.lightbox__inner--photo {
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox__photo {
  max-width: 100%;
  max-height: 85vh;
  object-fit: contain;
  display: block;
}

@keyframes lightboxIn {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.lightbox__close {
  position: fixed;
  top: 1.5rem;
  right: 2rem;
  font-size: 1.5rem;
  color: var(--color-bg);
  background: none;
  border: none;
  cursor: pointer;
  z-index: 2001;
  padding: 0.5rem;
  line-height: 1;
  opacity: 0.7;
  transition: opacity 0.3s ease;
}

.lightbox__close:hover {
  opacity: 1;
}

.lightbox__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 300;
  margin-bottom: 0.3rem;
}

.lightbox__meta {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  opacity: 0.9;
  margin-bottom: var(--space-lg);
}

.lightbox__images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.lightbox__images img {
  width: 100%;
  height: 320px;
  object-fit: cover;
}

.lightbox__images img:first-child {
  grid-column: 1 / -1;
  height: 450px;
}

.lightbox__description {
  font-size: 1rem;
  line-height: 1.8;
  opacity: 0.85;
  max-width: 60ch;
}

/* --- Contact Page --- */
.contact-page .page-header {
  padding-bottom: var(--space-md);
}

.contact-page .section--reduced {
  padding-top: var(--space-md);
}

.contact-page .divider {
  margin-top: var(--space-sm);
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  align-items: start;
}

.contact-info {
  padding-top: var(--space-md);
}

.contact-info h2 {
  margin-bottom: var(--space-sm);
}

.contact-info p {
  color: var(--color-text-light);
  margin-bottom: var(--space-sm);
}

.contact-info__detail {
  font-size: 0.85rem;
  color: var(--color-text-light);
}

.contact-info__detail a {
  color: var(--color-text);
  border-bottom: 1px solid var(--color-divider);
  transition: border-color 0.3s ease, border-width 0.3s ease;
}

.contact-info__detail a:hover {
  border-bottom: 2px solid var(--color-accent);
}

.contact-form {
  padding-top: var(--space-md);
}

.form-group {
  margin-bottom: var(--space-lg);
  position: relative;
}

.form-group label {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-light);
  margin-bottom: 0.6rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 1rem;
  color: var(--color-text);
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--color-divider);
  padding: 0.6rem 0;
  transition: border-color 0.3s ease;
  line-height: 1.6;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-bottom-color: var(--color-text);
  border-bottom-width: 2px;
}

.form-group input:focus-visible,
.form-group select:focus-visible,
.form-group textarea:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-bottom-color: var(--color-text);
}

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

.form-group select {
  appearance: none;
  -webkit-appearance: none;
  border-radius: 0;
  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 d='M1 1l5 5 5-5' stroke='%233a5c45' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0 center;
  padding-right: 1.5rem;
}

.form-submit {
  margin-top: var(--space-md);
}

.form-submit .btn {
  width: auto;
}

.form-status {
  margin-top: var(--space-sm);
  font-size: 0.85rem;
  color: var(--color-text-light);
}

/* Visually hidden but accessible */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* --- Footer --- */
.site-footer {
  padding: var(--space-xl) var(--space-md) var(--space-lg);
  border-top: 1px solid var(--color-divider);
}

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

.site-footer__logo {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 400;
}

.site-footer__contact {
  font-size: 0.8rem;
  color: var(--color-text-light);
  letter-spacing: 0.03em;
}

.site-footer__contact a {
  color: var(--color-text);
  border-bottom: 1px solid var(--color-divider);
  transition: border-color 0.3s ease;
}

.site-footer__contact a:hover {
  border-color: var(--color-accent);
}

.site-footer__copy {
  font-size: 0.75rem;
  color: var(--color-text-light);
  letter-spacing: 0.05em;
}

/* ===================================================================
   Responsive
   =================================================================== */

@media (max-width: 1024px) {
  .about {
    gap: var(--space-lg);
  }

  .about__image {
    height: 420px;
  }

  .gallery-grid {
    columns: 2;
  }
}

@media (max-width: 768px) {
  .site-nav__links {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .hero__content {
    bottom: 10%;
    left: 6%;
    right: 6%;
  }

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

  .section--reduced {
    padding: var(--space-lg) var(--space-sm);
  }

  .about {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .about__image {
    height: 350px;
    order: -1;
  }

  .featured__grid {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }

  .featured__item {
    aspect-ratio: 4 / 3;
  }

  .featured__item-overlay {
    opacity: 1;
  }

  .gallery-grid {
    columns: 1;
  }

  .gallery-item__overlay {
    opacity: 1;
    background: linear-gradient(to top, rgba(0, 42, 15, 0.7), transparent 60%);
    justify-content: flex-end;
    padding-bottom: 1.2rem;
  }

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

  .lightbox__images img:first-child,
  .lightbox__images img {
    height: 250px;
  }

  .contact-layout {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .page-header {
    padding: 8rem var(--space-sm) var(--space-lg);
  }

  .site-footer__inner {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero__title {
    font-size: 2.5rem;
  }

  .site-nav {
    padding: 1.2rem 1.2rem;
  }

  .site-nav.scrolled {
    padding: 0.8rem 1.2rem;
  }
}