/* ============================================
   STUDIO MISSATO — Global Stylesheet
   Inspired by wolffolins.com
   ============================================ */

/* --- Custom Properties --- */
:root {
  --bg: #FFFFFF;
  --surface: #FFFFFF;
  --ink: #18164A;
  --ink-2: #4A4870;
  --ink-3: #9895B8;
  --accent: #F26744;
  --navy: #2D2A8E;
  --navy-deep: #1A1740;
  --border: #E2E0EF;
  --logo-violet: #4736CB;

  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-sans: 'DM Sans', Helvetica, Arial, sans-serif;

  --space-xs: 0.6rem;
  --space-sm: 1.2rem;
  --space-md: 2.4rem;
  --space-lg: 4.8rem;
  --space-xl: 9.6rem;
  --space-2xl: 14.4rem;

  --nav-height: 72px;
  --transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

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

/* --- Typography --- */
h1, h2, h3 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.15;
}

h1 { font-size: clamp(2.5rem, 6vw, 5.5rem); }
h2 { font-size: clamp(2rem, 4.5vw, 4rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2.2rem); }

.label {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-3);
}

.label--light {
  color: rgba(255,255,255,0.5);
}

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

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

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 1000;
  transition: background var(--transition), box-shadow var(--transition);
  display: flex;
  align-items: center;
}

.nav--scrolled {
  background: #FFFFFF;
  box-shadow: 0 1px 0 var(--border);
}

.nav--dark {
  background: transparent;
}

.nav--dark.nav--scrolled {
  background: #FFFFFF;
}

.nav--dark.nav--scrolled .nav__link {
  color: var(--ink);
}

.nav--dark.nav--scrolled .nav__logo img.logo-white {
  display: none;
}

.nav--dark.nav--scrolled .nav__logo img.logo-violet {
  display: block;
}

.nav--dark.nav--scrolled .nav__burger span {
  background: var(--ink);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.nav__logo img {
  height: 32px;
  width: auto;
  transition: opacity var(--transition);
}

.nav__logo:hover img {
  opacity: 0.7;
}

.nav__links {
  display: flex;
  gap: var(--space-md);
  align-items: center;
}

.nav__link {
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--ink);
  position: relative;
  padding: 0.25rem 0;
}

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

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

.nav--dark .nav__link {
  color: rgba(255,255,255,0.85);
}

.nav--dark .nav__link::after {
  background: #fff;
}

.nav--dark .nav__link:hover {
  color: #fff;
}

/* Mobile menu */
.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 24px;
  cursor: pointer;
  z-index: 1001;
}

.nav__burger span {
  display: block;
  height: 1.5px;
  background: var(--ink);
  transition: all 0.3s ease;
  width: 100%;
}

.nav--dark .nav__burger span {
  background: #fff;
}

.nav__burger--active span:nth-child(1) {
  transform: rotate(45deg) translate(4px, 5px);
}

.nav__burger--active span:nth-child(2) {
  opacity: 0;
}

.nav__burger--active span:nth-child(3) {
  transform: rotate(-45deg) translate(4px, -5px);
}

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

.hero__slides {
  position: relative;
  width: 100%;
  height: 100%;
}

.hero__slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease;
  display: flex;
  align-items: flex-end;
  padding: var(--space-xl) 0 var(--space-lg);
}

.hero__slide--active {
  opacity: 1;
}

.hero__slide-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  transition: transform 8s ease;
}

.hero__slide--active .hero__slide-bg {
  transform: scale(1.05);
}

.hero__slide-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 35%;
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0) 0%,
    rgba(0, 0, 0, 0.5) 100%
  );
}

.hero__slide-content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  color: #fff;
}

.hero__slide-counter {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.5);
  margin-bottom: var(--space-sm);
}

.hero__slide-title {
  display: none;
}

.hero__slide-tagline {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.7);
  max-width: 500px;
}

.hero__slide-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: var(--space-md);
  font-size: 0.875rem;
  font-weight: 500;
  color: #fff;
  border-bottom: 1px solid rgba(255,255,255,0.3);
  padding-bottom: 0.25rem;
  transition: border-color var(--transition);
}

.hero__slide-link:hover {
  border-color: #fff;
}

.hero__slide-link svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition);
}

.hero__slide-link:hover svg {
  transform: translateX(4px);
}

/* Hero nav dots */
.hero__nav {
  position: absolute;
  right: var(--space-md);
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 10;
}

.hero__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 1.5px solid rgba(255,255,255,0.4);
  background: transparent;
  cursor: pointer;
  transition: all var(--transition);
  padding: 0;
}

.hero__dot--active {
  background: #fff;
  border-color: #fff;
  transform: scale(1.3);
}

/* Hero progress bar */
.hero__progress {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: rgba(255,255,255,0.1);
  z-index: 10;
}

.hero__progress-bar {
  height: 100%;
  background: var(--accent);
  width: 0%;
  transition: width 0.1s linear;
}

/* --- Conviction Section --- */
.conviction {
  padding: var(--space-2xl) 0;
}

.conviction__label {
  margin-bottom: var(--space-md);
}

.conviction__text {
  font-family: var(--font-serif);
  font-size: clamp(3.5rem, 6.5vw, 4.5rem);
  line-height: 1.15;
  max-width: 100%;
  color: var(--ink);
}

.conviction__text a {
  color: var(--navy);
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-underline-offset: 4px;
  text-decoration-thickness: 2px;
  transition: color var(--transition);
}

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

/* --- Projects Grid --- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.project-card {
  position: relative;
  cursor: pointer;
}

.project-card > a {
  display: block;
  position: relative;
  overflow: hidden;
  aspect-ratio: 3/2;
  background: #FFFFFF;
}

.project-card:first-child > a {
  aspect-ratio: 16/8;
}

.project-card:first-child {
  grid-column: 1 / -1;
}

.project-card__image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  transition: transform 0.6s ease;
}

.project-card:hover .project-card__image {
  transform: scale(1.03);
}

.project-card__overlay {
  display: none;
}

.project-card__content {
  position: relative;
  padding: var(--space-sm) 0;
  color: var(--ink);
  z-index: 2;
}

.project-card__tags {
  display: flex;
  gap: var(--space-xs);
  margin-bottom: 0.3rem;
}

.project-card__tag {
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-3);
}

.project-card__tag + .project-card__tag::before {
  content: '/ ';
}

.project-card__title {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 2.5vw, 2.2rem);
  font-weight: 400;
  margin-bottom: 0.15rem;
  color: var(--ink);
}

.project-card__tagline {
  font-size: 0.95rem;
  color: var(--ink-2);
}

/* --- Projects List (projets.html) --- */
.projects-list {
  padding-top: calc(var(--nav-height) + var(--space-lg));
}

.projects-list__header {
  margin-bottom: var(--space-lg);
}

.projects-list__header h1 {
  margin-bottom: var(--space-xs);
}

.projects-list__header p {
  color: var(--ink-2);
  font-size: 1.1rem;
}

.project-row {
  display: block;
  padding: 0 0 var(--space-xl);
  transition: opacity var(--transition);
}

.project-row:hover {
  opacity: 0.9;
}

.project-row__image {
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #f0f0f0;
}

.project-row__image-inner {
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  transition: transform 0.6s ease;
}

.project-row:hover .project-row__image-inner {
  transform: scale(1.03);
}

.project-row__info {
  padding: var(--space-sm) 0 0;
}

.project-row__number {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--ink-3);
  letter-spacing: 0.1em;
  margin-bottom: 0.4rem;
}

.project-row__title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  margin-bottom: 0.3rem;
  color: var(--ink);
}

.project-row__tagline {
  color: var(--ink-2);
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.project-row__meta {
  display: flex;
  gap: var(--space-md);
  font-size: 0.8rem;
  color: var(--ink-3);
}

.project-row__meta span {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

/* --- Project Page --- */
.project-hero {
  width: 100%;
  height: 80vh;
  min-height: 500px;
  background: var(--navy-deep);
  position: relative;
  display: flex;
  align-items: flex-end;
}

.project-hero__bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
}

.project-hero__overlay {
  display: none;
}

.project-body {
  padding: var(--space-xl) 0;
}

.project-body__grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-xl);
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.project-body__sidebar {
  position: sticky;
  top: calc(var(--nav-height) + var(--space-md));
  align-self: start;
}

.project-body__meta-item {
  margin-bottom: var(--space-md);
}

.project-body__meta-label {
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-3);
  margin-bottom: 0.25rem;
}

.project-body__meta-value {
  font-size: 1rem;
  color: var(--ink);
}

.project-body__content p {
  font-size: 1.15rem;
  line-height: 1.8;
  color: var(--ink-2);
  margin-bottom: var(--space-md);
}

.project-body__content p:first-child {
  font-size: 1.4rem;
  color: var(--ink);
  line-height: 1.6;
}

.project-body__placeholder {
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: 0;
  margin: var(--space-lg) 0;
}

/* Project nav (prev/next) */
.project-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--border);
}

.project-nav__item {
  padding: var(--space-lg) var(--space-md);
  transition: background var(--transition);
}

.project-nav__item:hover {
  background: var(--surface);
}

.project-nav__item--next {
  text-align: right;
  border-left: 1px solid var(--border);
}

.project-nav__direction {
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-3);
  margin-bottom: 0.5rem;
}

.project-nav__title {
  font-family: var(--font-serif);
  font-size: clamp(1.2rem, 2vw, 1.8rem);
  color: var(--ink);
}

/* --- Studio Page --- */
.studio-hero {
  padding: calc(var(--nav-height) + var(--space-xl)) 0 var(--space-xl);
}

.studio-hero__text {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4.5vw, 3.8rem);
  line-height: 1.3;
  max-width: 950px;
  color: var(--ink);
}

.studio-section {
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--border);
}

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

.studio-section__content p {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--ink-2);
  margin-bottom: var(--space-md);
}

.studio-section__content p:first-child {
  font-size: 1.25rem;
  color: var(--ink);
}

.territories {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}

.territory {
  padding: var(--space-md) var(--space-md) var(--space-md) var(--space-md);
  border-top: 1.5px solid var(--border);
  border-left: 1px solid var(--border);
}

.territory:first-child {
  border-left: none;
  padding-left: 0;
}

.territory:last-child {
  padding-right: 0;
}

.territory__number {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--ink-3);
  letter-spacing: 0.1em;
  margin-bottom: 0.6rem;
}

.territory__title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  line-height: 1.2;
  margin-bottom: 0.6rem;
  color: var(--ink);
}

.territory__desc {
  font-size: 0.875rem;
  color: var(--ink-2);
  line-height: 1.6;
}

.studio-cta {
  padding: var(--space-2xl) 0;
  border-top: 1px solid var(--border);
}

.studio-cta__headline {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-style: italic;
  color: var(--ink);
  margin-bottom: var(--space-sm);
}

.studio-cta__sub {
  font-size: 1.15rem;
  color: var(--ink-2);
  line-height: 1.6;
}

/* --- Contact Page --- */
.contact {
  padding: calc(var(--nav-height) + var(--space-xl)) 0 var(--space-xl);
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.contact__headline {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 400;
  line-height: 1;
  margin-bottom: var(--space-xs);
  color: var(--ink);
}

.contact__sub {
  font-style: italic;
  color: var(--ink-3);
  font-size: 1.1rem;
  margin-bottom: var(--space-md);
}

.contact__body {
  font-size: 1.15rem;
  color: var(--ink-2);
  line-height: 1.7;
  max-width: 480px;
}

.contact__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-3);
}

.form-group input,
.form-group textarea {
  font-family: var(--font-sans);
  font-size: 1rem;
  padding: 0.8rem 0;
  border: none;
  border-bottom: 1.5px solid var(--border);
  background: transparent;
  color: var(--ink);
  outline: none;
  transition: border-color var(--transition);
}

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

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

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--ink-3);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 1rem 2.5rem;
  border-radius: 2px;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
}

.btn--primary {
  background: var(--ink);
  color: #fff;
}

.btn--primary:hover {
  background: var(--navy);
}

.btn--outline {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid var(--ink);
}

.btn--outline:hover {
  background: var(--ink);
  color: #fff;
}

/* --- Footer --- */
.footer {
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--border);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer__logo img {
  height: 24px;
  width: auto;
}

.footer__links {
  display: flex;
  gap: var(--space-md);
}

.footer__link {
  font-size: 0.85rem;
  color: var(--ink-2);
  transition: color var(--transition);
}

.footer__link:hover {
  color: var(--ink);
}

.footer__copy {
  font-size: 0.8rem;
  color: var(--ink-3);
}

/* --- Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

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

/* --- Page transition --- */
.page-transition {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--navy-deep);
  z-index: 9999;
  transform: scaleY(0);
  transform-origin: bottom;
  pointer-events: none;
}

.page-transition--active {
  animation: pageIn 0.6s ease forwards;
}

@keyframes pageIn {
  0% { transform: scaleY(0); transform-origin: bottom; }
  50% { transform: scaleY(1); transform-origin: bottom; }
  50.1% { transform-origin: top; }
  100% { transform: scaleY(0); transform-origin: top; }
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .projects-grid {
    gap: var(--space-sm);
  }

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

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

  .studio-section__grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
}

@media (max-width: 768px) {
  :root {
    --space-xl: 6rem;
    --space-2xl: 8.5rem;
  }

  .nav__links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: #FFFFFF;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--space-lg);
    z-index: 999;
  }

  .nav--dark .nav__links {
    background: var(--navy-deep);
  }

  .nav__links--open {
    display: flex;
  }

  .nav__link {
    font-size: 1.5rem;
  }

  .nav__burger {
    display: flex;
  }

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

  .project-card:first-child > a {
    aspect-ratio: 3/2;
  }

  .project-row__info {
    padding: var(--space-sm) 0 0;
  }

  .project-body__sidebar {
    grid-template-columns: 1fr 1fr;
  }

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

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

  .territory {
    border-left: none;
    padding-left: 0;
    padding-right: 0;
  }

  .footer__inner {
    flex-direction: column;
    text-align: center;
  }

  .project-nav {
    grid-template-columns: 1fr;
  }

  .project-nav__item--next {
    text-align: left;
    border-left: none;
    border-top: 1px solid var(--border);
  }

  .hero__nav {
    right: var(--space-sm);
  }
}

@media (max-width: 480px) {
  :root {
    --space-xl: 4.2rem;
    --space-2xl: 6rem;
  }

  .project-body__sidebar {
    grid-template-columns: 1fr;
  }
}