/* ============================================
   Maison Élégance — Luxury Brand Stylesheet
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  --color-bg: #070708;
  --color-bg-alt: #0c0c0e;
  --color-surface: #111114;
  --color-text: #ece8e1;
  --color-text-muted: #8a867f;
  --color-gold: #c9a84c;
  --color-gold-light: #dfc26b;
  --color-gold-dark: #a8863a;
  --color-border: rgba(236, 232, 225, 0.08);
  --color-border-light: rgba(236, 232, 225, 0.15);
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-width: 1200px;
  --nav-height: 80px;
  --transition: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

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

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }

/* --- Container --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
}

@media (max-width: 768px) {
  .container { padding: 0 20px; }
}

/* --- Section Shared --- */
.section-label {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 400;
  color: var(--color-text);
  line-height: 1.15;
}

/* --- Scroll Reveal --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  padding: 0 32px;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: background 0.4s ease;
  mix-blend-mode: difference;
}

.nav.scrolled {
  background: rgba(7, 7, 8, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  mix-blend-mode: normal;
  border-bottom: 1px solid var(--color-border);
}

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

.nav__logo {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--color-text);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav__link {
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-text);
  opacity: 0.7;
  transition: opacity var(--transition-fast);
  position: relative;
}

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

.nav__link:hover {
  opacity: 1;
}

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

.nav__link--cta {
  padding: 10px 24px;
  border: 1px solid var(--color-gold);
  color: var(--color-gold);
  opacity: 1;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.nav__link--cta::after { display: none; }

.nav__link--cta:hover {
  background: var(--color-gold);
  color: var(--color-bg);
  opacity: 1;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  padding: 4px;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 1px;
  background: var(--color-text);
  transition: transform var(--transition-fast);
}

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

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

.hero__bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 30%, #1a1a1e 0%, #070708 60%);
  z-index: 0;
}

.hero__grain {
  position: absolute;
  inset: 0;
  z-index: 1;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 2;
  width: 100%;
  padding-top: var(--nav-height);
}

.hero__content {
  max-width: 720px;
}

.hero__subtitle {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 24px;
}

.hero__title {
  font-family: var(--font-serif);
  font-size: clamp(3.5rem, 10vw, 8rem);
  font-weight: 400;
  line-height: 0.95;
  letter-spacing: -0.03em;
}

.hero__title-line {
  display: block;
}

.hero__title-line--accent {
  font-style: italic;
  color: var(--color-gold);
  padding-left: 0.15em;
}

.hero__divider {
  width: 80px;
  height: 1px;
  background: var(--color-gold);
  margin: 40px 0;
}

.hero__tagline {
  font-size: 1.15rem;
  font-weight: 300;
  line-height: 1.7;
  color: var(--color-text-muted);
  max-width: 520px;
  margin-bottom: 48px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: all var(--transition-fast);
}

.btn--primary {
  background: var(--color-gold);
  color: var(--color-bg);
  border: 1px solid var(--color-gold);
}

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

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-light);
}

.btn--outline:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

/* --- Scroll Indicator --- */
.hero__scroll {
  position: absolute;
  bottom: 48px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 2;
}

.hero__scroll-text {
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--color-text-muted), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; transform: scaleY(1); }
  50% { opacity: 1; transform: scaleY(1.4); }
}

@media (max-width: 768px) {
  .hero__title { font-size: clamp(2.8rem, 15vw, 4.5rem); }
  .hero__actions { flex-direction: column; }
  .hero__scroll { display: none; }
}

/* --- Manifesto --- */
.manifesto {
  padding: 160px 0;
  background: var(--color-bg-alt);
}

.manifesto__inner {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.manifesto__quote {
  position: relative;
}

.manifesto__quote-mark {
  display: block;
  font-family: var(--font-serif);
  font-size: 8rem;
  line-height: 0.6;
  color: var(--color-gold);
  opacity: 0.3;
  margin-bottom: 24px;
}

.manifesto__text {
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
  font-weight: 400;
  line-height: 1.7;
  color: var(--color-text);
  font-style: italic;
}

.manifesto__attribution {
  margin-top: 48px;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

@media (max-width: 768px) {
  .manifesto { padding: 100px 0; }
}

/* --- Disciplines --- */
.disciplines {
  padding: 120px 0;
}

.disciplines__header {
  margin-bottom: 80px;
}

.disciplines__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--color-border);
}

.discipline-card {
  background: var(--color-surface);
  padding: 64px 48px;
  transition: background var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.discipline-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-fast);
}

.discipline-card:hover::before {
  transform: scaleX(1);
}

.discipline-card:hover {
  background: #151518;
}

.discipline-card__icon {
  width: 32px;
  height: 32px;
  margin-bottom: 24px;
  color: var(--color-gold);
}

.discipline-card__title {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--color-text);
}

.discipline-card__desc {
  font-size: 0.9rem;
  font-weight: 300;
  line-height: 1.7;
  color: var(--color-text-muted);
}

@media (max-width: 900px) {
  .disciplines__grid { grid-template-columns: repeat(2, 1fr); }
  .discipline-card { padding: 40px 32px; }
}

@media (max-width: 600px) {
  .disciplines__grid { grid-template-columns: 1fr; }
}

/* --- Work --- */
.work {
  padding: 120px 0;
  background: var(--color-bg-alt);
}

.work__header {
  margin-bottom: 64px;
}

.work__grid {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  background: var(--color-border);
}

.work-card {
  position: relative;
  background: var(--color-surface);
  overflow: hidden;
}

.work-card--wide {
  grid-column: span 2;
}

.work-card__image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/10;
}

.work-card__placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.work-card__placeholder--1 {
  background: linear-gradient(135deg, #1a1a1e 0%, #2a2520 50%, #1a1515 100%);
}

.work-card__placeholder--2 {
  background: linear-gradient(135deg, #1a1518 0%, #25202a 50%, #15151a 100%);
}

.work-card__placeholder--3 {
  background: linear-gradient(135deg, #151a18 0%, #202a25 50%, #151a1a 100%);
}

.work-card__overlay {
  position: absolute;
  inset: 0;
  background: rgba(7, 7, 8, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-fast);
  backdrop-filter: blur(2px);
}

.work-card:hover .work-card__overlay {
  opacity: 1;
}

.work-card__cta {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-gold);
  border-bottom: 1px solid var(--color-gold);
  padding-bottom: 4px;
}

.work-card__info {
  padding: 32px;
}

.work-card__title {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.work-card__category {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--color-text-muted);
  letter-spacing: 0.03em;
}

@media (max-width: 768px) {
  .work__grid {
    grid-template-columns: 1fr;
    padding: 0 20px;
  }
  .work-card--wide { grid-column: span 1; }
  .work-card__info { padding: 20px; }
}

/* --- Approach / Process --- */
.approach {
  padding: 120px 0;
}

.approach__header {
  margin-bottom: 80px;
}

.process {
  position: relative;
  max-width: 700px;
  margin: 0 auto;
}

.process__line {
  position: absolute;
  top: 0;
  left: 28px;
  width: 1px;
  height: 100%;
  background: var(--color-border-light);
}

.process__step {
  position: relative;
  padding-left: 80px;
  padding-bottom: 80px;
}

.process__step:last-child {
  padding-bottom: 0;
}

.process__number {
  position: absolute;
  left: 0;
  top: 0;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--color-gold);
  border: 1px solid var(--color-border-light);
  border-radius: 50%;
  background: var(--color-bg);
  z-index: 1;
}

.process__title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.process__desc {
  font-size: 0.95rem;
  font-weight: 300;
  line-height: 1.8;
  color: var(--color-text-muted);
}

@media (max-width: 600px) {
  .process__step { padding-left: 64px; padding-bottom: 56px; }
  .process__number { width: 44px; height: 44px; font-size: 0.95rem; }
  .process__line { left: 22px; }
}

/* --- Contact --- */
.contact {
  padding: 120px 0 0;
  background: var(--color-bg-alt);
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.contact__title {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  font-weight: 400;
  line-height: 1.1;
  margin-bottom: 24px;
}

.contact__desc {
  font-size: 1rem;
  font-weight: 300;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 48px;
}

.contact__details {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact__detail-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 6px;
}

.contact__detail-value {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text);
}

.contact__detail a.contact__detail-value {
  transition: color var(--transition-fast);
  position: relative;
}

.contact__detail a.contact__detail-value::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-gold);
  transition: width var(--transition-fast);
}

.contact__detail a.contact__detail-value:hover {
  color: var(--color-gold);
}

.contact__detail a.contact__detail-value:hover::after {
  width: 100%;
}

/* --- Form --- */
.contact__form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form__group {
  position: relative;
}

.form__group--full {
  grid-column: span 2;
}

.form__input {
  width: 100%;
  padding: 16px 0;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--color-text);
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--color-border-light);
  outline: none;
  transition: border-color var(--transition-fast);
}

.form__input::placeholder {
  color: transparent;
}

.form__input:focus {
  border-color: var(--color-gold);
}

.form__input:focus + .form__label,
.form__input:not(:placeholder-shown) + .form__label {
  transform: translateY(-28px);
  font-size: 0.7rem;
  color: var(--color-gold);
}

.form__label {
  position: absolute;
  top: 16px;
  left: 0;
  font-size: 0.85rem;
  font-weight: 300;
  color: var(--color-text-muted);
  pointer-events: none;
  transition: all var(--transition-fast);
}

.form__textarea {
  resize: vertical;
  min-height: 60px;
}

.form__submit {
  grid-column: span 2;
  width: 100%;
  justify-content: center;
  margin-top: 12px;
}

@media (max-width: 768px) {
  .contact__grid { grid-template-columns: 1fr; gap: 48px; }
  .contact__form { grid-template-columns: 1fr; }
  .form__group--full, .form__submit { grid-column: span 1; }
}

/* --- Footer --- */
.footer {
  margin-top: 120px;
  padding: 48px 0;
  border-top: 1px solid var(--color-border);
}

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

.footer__copy {
  font-size: 0.8rem;
  font-weight: 300;
  color: var(--color-text-muted);
}

.footer__social {
  display: flex;
  gap: 24px;
}

.footer__social-link {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.footer__social-link:hover {
  color: var(--color-gold);
}

@media (max-width: 600px) {
  .footer__inner { flex-direction: column; gap: 16px; text-align: center; }
  .footer__social { gap: 16px; }
}

/* --- Utility --- */
.hide-mobile { display: inline; }
@media (max-width: 600px) { .hide-mobile { display: none; } }