/* ============================================================
   VARIABLES & RESET
   ============================================================ */
:root {
  --color-bg:       #fafafa;
  --color-white:    #ffffff;
  --color-dark:     #1a1a1a;
  --color-text:     #333333;
  --color-muted:    #777777;
  --color-border:   #e0e0e0;
  --color-accent:   #c8a45a;        /* Couleur d'accentuation dorée — modifiable */
  --color-accent-hover: #b08d3e;
  --font-main:      'Montserrat', sans-serif;
  --header-height:  70px;
  --transition:     0.3s ease;
}

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

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

body {
  font-family: var(--font-main);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

/* ============================================================
   UTILITAIRES
   ============================================================ */
.container {
  width: 90%;
  max-width: 1100px;
  margin: 0 auto;
}

.section {
  padding: 100px 0;
}

.section__title {
  font-size: 2rem;
  font-weight: 600;
  text-align: center;
  margin-bottom: 0.5rem;
  color: var(--color-dark);
}

.section__subtitle {
  text-align: center;
  color: var(--color-muted);
  font-weight: 300;
  margin-bottom: 3rem;
  font-size: 1.05rem;
}

.btn {
  display: inline-block;
  padding: 14px 36px;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  font-family: var(--font-main);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  background: transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

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

.btn--full {
  width: 100%;
  text-align: center;
}

/* ============================================================
   HEADER
   ============================================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: background var(--transition), box-shadow var(--transition);
}

.header--scrolled {
  background: rgba(255, 255, 255, 0.97);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  width: 90%;
  max-width: 1100px;
  margin: 0 auto;
}

.header__logo {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-white);
  letter-spacing: 0.5px;
  transition: color var(--transition);
}

.header--scrolled .header__logo {
  color: var(--color-dark);
}

.header__logo-accent {
  font-weight: 300;
  opacity: 0.7;
}

.header__nav {
  display: flex;
  gap: 2rem;
}

.header__link {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
  transition: color var(--transition);
  position: relative;
}

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

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

.header--scrolled .header__link {
  color: var(--color-text);
}

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

/* Burger mobile */
.header__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.header__burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  transition: var(--transition);
}

.header--scrolled .header__burger span {
  background: var(--color-dark);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

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

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

/* Filtre sombre semi-transparent par-dessus la photo */
.hero__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--color-white);
  padding: 0 1.5rem;
}

.hero__title {
  font-size: 3.2rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}

.hero__subtitle {
  font-size: 1.15rem;
  font-weight: 300;
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
  opacity: 0.85;
}

.hero__tagline {
  font-size: 0.95rem;
  font-weight: 300;
  max-width: 480px;
  margin: 0 auto 2.5rem;
  opacity: 0.7;
  line-height: 1.7;
}

.hero .btn {
  border-color: rgba(255, 255, 255, 0.5);
  color: var(--color-white);
}

.hero .btn:hover {
  background: var(--color-white);
  color: var(--color-dark);
  border-color: var(--color-white);
}

/* ============================================================
   PORTFOLIO GRID
   ============================================================ */
.portfolio {
  background: var(--color-white);
}

.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
}

.portfolio__item {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 16 / 9;
  background: var(--color-dark);
}

.portfolio__thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease, opacity 0.5s ease;
}

.portfolio__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.6);
  opacity: 0;
  transition: opacity 0.4s ease;
  padding: 1rem;
  text-align: center;
}

.portfolio__item:hover .portfolio__thumb {
  transform: scale(1.08);
  opacity: 0.6;
}

.portfolio__item:hover .portfolio__overlay {
  opacity: 1;
}

.portfolio__item-title {
  color: var(--color-white);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
}

.portfolio__item-desc {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.8rem;
  font-weight: 300;
}

/* Bouton play centré */
.portfolio__play {
  font-size: 2.5rem;
  color: var(--color-white);
  opacity: 0.9;
}

/* Placeholder pour les TikTok (pas de miniature auto) */
.portfolio__thumb--placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--color-dark);
  gap: 0.5rem;
}

.portfolio__label {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* Liens TikTok — pas de lightbox */
.portfolio__item--external {
  display: block;
}

/* ============================================================
   LIGHTBOX
   ============================================================ */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.lightbox--active {
  opacity: 1;
  visibility: visible;
}

.lightbox__close {
  position: absolute;
  top: 1.5rem;
  right: 2rem;
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 2.5rem;
  cursor: pointer;
  transition: opacity var(--transition);
  line-height: 1;
}

.lightbox__close:hover {
  opacity: 0.6;
}

.lightbox__content {
  width: 90%;
  max-width: 900px;
  aspect-ratio: 16 / 9;
}

.lightbox__content iframe {
  width: 100%;
  height: 100%;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact {
  background: var(--color-bg);
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.contact__info {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding-top: 0.5rem;
}

.contact__link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--color-text);
  transition: color var(--transition);
}

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

.contact__icon {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

/* Formulaire */
.form__group {
  margin-bottom: 1.2rem;
}

.form__input {
  width: 100%;
  padding: 14px 16px;
  font-family: var(--font-main);
  font-size: 0.9rem;
  border: 1px solid var(--color-border);
  background: var(--color-white);
  color: var(--color-text);
  outline: none;
  transition: border-color var(--transition);
}

.form__input::placeholder {
  color: var(--color-muted);
  font-weight: 300;
}

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

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

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--color-dark);
  color: rgba(255, 255, 255, 0.6);
  padding: 2rem 0;
}

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

.footer__copy {
  font-size: 0.78rem;
  font-weight: 300;
}

.footer__socials {
  display: flex;
  gap: 1.2rem;
}

.footer__social {
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer__social svg {
  width: 20px;
  height: 20px;
  color: rgba(255, 255, 255, 0.5);
  transition: color var(--transition);
}

.footer__social:hover svg {
  color: var(--color-accent);
}

/* ============================================================
   ANIMATIONS D'APPARITION (scroll)
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .portfolio__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact__grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 600px) {
  .hero__title {
    font-size: 2rem;
    letter-spacing: 2px;
  }

  .hero__subtitle {
    font-size: 0.9rem;
    letter-spacing: 2px;
  }

  .section {
    padding: 70px 0;
  }

  .section__title {
    font-size: 1.5rem;
  }

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

  /* Menu mobile */
  .header__nav {
    position: fixed;
    top: 0;
    right: 0;
    width: 260px;
    height: 100vh;
    background: var(--color-white);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    transform: translateX(100%);
    transition: transform var(--transition);
    box-shadow: -4px 0 15px rgba(0, 0, 0, 0.08);
  }

  .header__nav--open {
    transform: translateX(0);
  }

  .header__nav .header__link {
    color: var(--color-dark);
    font-size: 0.95rem;
  }

  .header__burger {
    display: flex;
  }

  /* Burger animation */
  .header__burger--active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .header__burger--active span:nth-child(2) {
    opacity: 0;
  }
  .header__burger--active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .footer__inner {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}