/* Dandieu Multiservices — design épuré noir & blanc */

:root {
  --noir: #0a0a0a;
  --noir-soft: #141414;
  --gris: #6b6b6b;
  --gris-clair: #e8e8e8;
  --blanc: #fafafa;
  --blanc-pur: #ffffff;
  --accent: #c9a962;
  --font-display: "Cormorant Garamond", Georgia, serif;
  --font-body: "DM Sans", system-ui, sans-serif;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --header-h: 80px;
  --max: 1200px;
  --gap: clamp(1.5rem, 4vw, 3rem);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--noir);
  background: var(--blanc);
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

.container {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

/* ——— Header ——— */
.header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-h);
  background: rgba(250, 250, 250, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.header.is-scrolled {
  border-color: var(--gris-clair);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo__img {
  width: 48px;
  height: 48px;
}

.logo__text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo__name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.logo__tag {
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gris);
}

.nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav__link {
  font-size: 0.875rem;
  letter-spacing: 0.04em;
  color: var(--gris);
  transition: color 0.2s;
}

.nav__link:hover,
.nav__link.is-active {
  color: var(--noir);
}

.nav__cta {
  padding: 0.65rem 1.25rem;
  background: var(--noir);
  color: var(--blanc) !important;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: background 0.2s, transform 0.2s;
}

.nav__cta:hover {
  background: var(--noir-soft);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--noir);
  transition: transform 0.3s, opacity 0.3s;
}

/* ——— Hero ——— */
.hero {
  min-height: 100vh;
  display: grid;
  align-items: center;
  padding-top: var(--header-h);
  background: var(--noir);
  color: var(--blanc);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 40%, rgba(201, 169, 98, 0.08), transparent),
    linear-gradient(180deg, transparent 60%, rgba(0, 0, 0, 0.4));
  pointer-events: none;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap);
  align-items: center;
  padding-block: 4rem;
  position: relative;
  z-index: 1;
}

.hero__badge {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(201, 169, 98, 0.4);
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.25rem);
  font-weight: 400;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.hero__title em {
  font-style: italic;
  color: var(--accent);
}

.hero__lead {
  font-size: 1.1rem;
  color: rgba(250, 250, 250, 0.75);
  max-width: 32ch;
  margin-bottom: 2.5rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 1.75rem;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  transition: all 0.25s var(--ease);
}

.btn--primary {
  background: var(--blanc);
  color: var(--noir);
}

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

.btn--outline {
  background: transparent;
  color: var(--blanc);
  border: 1px solid rgba(255, 255, 255, 0.35);
}

.btn--outline:hover {
  border-color: var(--blanc);
  background: rgba(255, 255, 255, 0.06);
}

.btn--dark {
  background: var(--noir);
  color: var(--blanc);
}

.btn--dark:hover {
  background: var(--noir-soft);
}

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

.hero__logo {
  width: min(320px, 70vw);
  filter: drop-shadow(0 24px 48px rgba(0, 0, 0, 0.5));
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.hero__stats {
  display: flex;
  gap: 3rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.stat__num {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 500;
  color: var(--accent);
  line-height: 1;
}

.stat__label {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(250, 250, 250, 0.5);
  margin-top: 0.35rem;
}

/* ——— Sections communes ——— */
.section {
  padding-block: clamp(4rem, 10vw, 7rem);
}

.section--alt {
  background: var(--blanc-pur);
}

.section--dark {
  background: var(--noir);
  color: var(--blanc);
}

.section__eyebrow {
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gris);
  margin-bottom: 0.75rem;
}

.section--dark .section__eyebrow {
  color: var(--accent);
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400;
  line-height: 1.15;
  margin-bottom: 1rem;
}

.section__intro {
  color: var(--gris);
  max-width: 55ch;
  margin-bottom: var(--gap);
}

.section--dark .section__intro {
  color: rgba(250, 250, 250, 0.65);
}

/* ——— À propos ——— */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--gap);
  align-items: start;
}

.about__portrait {
  aspect-ratio: 4/5;
  background: linear-gradient(145deg, var(--gris-clair), #d4d4d4);
  position: relative;
  overflow: hidden;
}

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

.about__portrait-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--gris);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  text-align: center;
  padding: 2rem;
}

.about__content p + p {
  margin-top: 1rem;
}

.about__highlights {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--gris-clair);
}

.highlight__icon {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.highlight__title {
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.25rem;
}

.highlight__text {
  font-size: 0.85rem;
  color: var(--gris);
}

/* ——— Services ——— */
.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.service-card {
  padding: 2rem;
  border: 1px solid var(--gris-clair);
  background: var(--blanc-pur);
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
}

.service-card:hover {
  border-color: var(--noir);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.06);
}

.service-card__num {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--accent);
  opacity: 0.8;
  margin-bottom: 1rem;
}

.service-card__title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
}

.service-card__text {
  font-size: 0.9rem;
  color: var(--gris);
}

/* ——— Réalisations ——— */
.portfolio__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.filter-btn {
  padding: 0.5rem 1.25rem;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: transparent;
  border: 1px solid var(--gris-clair);
  color: var(--gris);
  cursor: pointer;
  transition: all 0.2s;
}

.filter-btn:hover,
.filter-btn.is-active {
  background: var(--noir);
  border-color: var(--noir);
  color: var(--blanc);
}

.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}

.project-card {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 4/3;
  background: var(--noir-soft);
}

.project-card.is-hidden {
  display: none;
}

.project-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}

.project-card:hover .project-card__img {
  transform: scale(1.06);
}

.project-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.85) 0%, transparent 55%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  color: var(--blanc);
  opacity: 0;
  transition: opacity 0.35s;
}

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

.project-card__cat {
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.35rem;
}

.project-card__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}

.lightbox.is-open {
  opacity: 1;
  visibility: visible;
}

.lightbox__close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: none;
  border: none;
  color: var(--blanc);
  font-size: 2rem;
  cursor: pointer;
  line-height: 1;
  opacity: 0.7;
  transition: opacity 0.2s;
}

.lightbox__close:hover {
  opacity: 1;
}

.lightbox__content {
  max-width: 900px;
  text-align: center;
  color: var(--blanc);
}

.lightbox__img {
  max-height: 70vh;
  width: auto;
  margin: 0 auto 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.lightbox__title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  margin-bottom: 0.5rem;
}

.lightbox__desc {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.95rem;
}

/* ——— Process ——— */
.process__steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  counter-reset: step;
}

.process__step {
  position: relative;
  padding-top: 3rem;
}

.process__step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  top: 0;
  left: 0;
  font-family: var(--font-display);
  font-size: 2.5rem;
  color: rgba(201, 169, 98, 0.35);
  line-height: 1;
}

.process__step-title {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
}

.process__step-text {
  font-size: 0.85rem;
  color: rgba(250, 250, 250, 0.55);
}

/* ——— Devis ——— */
.devis__layout {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: var(--gap);
  align-items: start;
}

.devis__info {
  position: sticky;
  top: calc(var(--header-h) + 2rem);
}

.devis__info-list {
  margin-top: 2rem;
}

.devis__info-list li {
  display: flex;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--gris-clair);
  font-size: 0.9rem;
}

.devis__info-list li:last-child {
  border-bottom: none;
}

.devis__info-icon {
  flex-shrink: 0;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--noir);
  color: var(--blanc);
  font-size: 0.75rem;
}

.form {
  background: var(--blanc-pur);
  border: 1px solid var(--gris-clair);
  padding: clamp(1.5rem, 4vw, 2.5rem);
}

.form__legend {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.form__hint {
  font-size: 0.85rem;
  color: var(--gris);
  margin-bottom: 2rem;
}

.form__group {
  margin-bottom: 1.25rem;
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form label {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gris);
  margin-bottom: 0.4rem;
}

.form label .required {
  color: #b33;
}

.form input,
.form select,
.form textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  border: 1px solid var(--gris-clair);
  background: var(--blanc);
  color: var(--noir);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form input:focus,
.form select:focus,
.form textarea:focus {
  outline: none;
  border-color: var(--noir);
  box-shadow: 0 0 0 3px rgba(10, 10, 10, 0.06);
}

.form input.is-invalid,
.form select.is-invalid,
.form textarea.is-invalid {
  border-color: #b33;
}

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

.form__checkboxes {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.form__checkbox {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  text-transform: none;
  letter-spacing: 0;
  color: var(--noir);
  cursor: pointer;
}

.form__checkbox input {
  width: auto;
  accent-color: var(--noir);
}

.form__file {
  border: 2px dashed var(--gris-clair);
  padding: 2rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.form__file:hover,
.form__file.is-dragover {
  border-color: var(--noir);
  background: rgba(10, 10, 10, 0.02);
}

.form__file input {
  display: none;
}

.form__file-text {
  font-size: 0.9rem;
  color: var(--gris);
}

.form__file-names {
  margin-top: 0.75rem;
  font-size: 0.8rem;
  color: var(--noir);
}

.form__consent {
  font-size: 0.8rem;
  color: var(--gris);
  margin: 1.5rem 0;
}

.form__consent a {
  text-decoration: underline;
}

.form__submit {
  width: 100%;
}

.form__success {
  display: none;
  text-align: center;
  padding: 3rem 2rem;
}

.form__success.is-visible {
  display: block;
}

.form__success-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.form__success-title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  margin-bottom: 0.75rem;
}

.form__success-text {
  color: var(--gris);
  margin-bottom: 1.5rem;
}

.form.is-submitted .form__fields {
  display: none;
}

/* ——— Contact ——— */
.contact__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.contact-card {
  padding: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  text-align: center;
  transition: border-color 0.3s, background 0.3s;
}

.contact-card:hover {
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.03);
}

.contact-card__icon {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--accent);
}

.contact-card__label {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
  margin-bottom: 0.5rem;
}

.contact-card__value {
  font-size: 1rem;
}

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

/* ——— Footer ——— */
.footer {
  padding: 2rem 0;
  background: var(--noir-soft);
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.8rem;
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.footer__links {
  display: flex;
  gap: 1.5rem;
}

.footer__links a:hover {
  color: var(--blanc);
}

/* ——— Responsive ——— */
@media (max-width: 1024px) {
  .hero__grid,
  .about__grid,
  .devis__layout {
    grid-template-columns: 1fr;
  }

  .hero__visual {
    order: -1;
  }

  .hero__logo {
    width: 200px;
  }

  .process__steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .devis__info {
    position: static;
  }
}

@media (max-width: 768px) {
  .nav {
    position: fixed;
    inset: var(--header-h) 0 auto;
    flex-direction: column;
    background: var(--blanc);
    padding: 2rem;
    gap: 1.5rem;
    border-bottom: 1px solid var(--gris-clair);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.35s var(--ease), opacity 0.35s, visibility 0.35s;
  }

  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.is-active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
  }

  .nav-toggle.is-active span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.is-active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
  }

  .hero__stats {
    gap: 1.5rem;
  }

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

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

  .process__steps,
  .contact__grid {
    grid-template-columns: 1fr;
  }

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .hero__logo {
    animation: none;
  }

  * {
    transition-duration: 0.01ms !important;
  }
}