/* Components — premium, architectural, minimal */

/* Accessibility */
.skip-link {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 9999;
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: 999px;
  padding: 10px 14px;
  box-shadow: var(--shadow-sm);
  transform: translateY(-140%);
}

.skip-link:focus {
  transform: translateY(0);
  outline: none;
  box-shadow: var(--focus-ring), var(--shadow-sm);
}

:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

/* Header / Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-line);
}

.site-header.is-scrolled,
.site-header[data-scrolled="true"] {
  box-shadow: var(--shadow-header);
  background: rgba(255, 255, 255, 0.96);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: 14px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  width: 62px;
  height: 62px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  border: 1px solid var(--color-line);
  background: #fff;
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.08);
  overflow: hidden;
}

.brand-logo {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  padding: 1px;
}

.brand-name {
  font-weight: var(--fw-semibold);
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.site-nav {
  display: none; /* mobile-first: use burger */
  align-items: center;
  gap: var(--space-4);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: 0;
}

.nav-link {
  position: relative;
  padding: 10px 2px;
  font-size: var(--text-sm);
  color: rgba(43, 43, 43, 0.9);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 4px;
  height: 1px;
  background: rgba(43, 43, 43, 0.22);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 160ms ease;
}

.nav-link:hover::after,
.nav-link:focus-visible::after {
  transform: scaleX(1);
}

.nav-cta {
  margin-left: var(--space-2);
}

/* Burger — 3 lignes (menu hamburger classique) */
.burger {
  width: 44px;
  height: 44px;
  display: inline-grid;
  place-items: center;
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: 12px;
}

.burger-lines {
  width: 18px;
  height: 2px;
  position: relative;
  display: block;
  background: rgba(43, 43, 43, 0.9);
  border-radius: 2px;
}

.burger-lines::before,
.burger-lines::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: rgba(43, 43, 43, 0.9);
  border-radius: 2px;
}

.burger-lines::before {
  top: -5px;
}

.burger-lines::after {
  top: 5px;
}

/* Mobile panel */
.nav-panel {
  background: rgba(255, 255, 255, 0.98);
  border-bottom: 1px solid var(--color-line);
}

.nav-panel-inner {
  padding: 14px 0 22px;
  display: grid;
  gap: var(--space-3);
}

.nav-panel-list {
  display: grid;
  gap: 6px;
}

.nav-panel .nav-link {
  padding: 12px 0;
  font-size: 1rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid var(--color-line);
  font-weight: var(--fw-semibold);
  letter-spacing: -0.01em;
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease, box-shadow 160ms ease;
}

.btn-primary {
  background: var(--color-accent);
  border-color: rgba(240, 90, 40, 0.55);
  color: #fff;
  box-shadow: 0 14px 28px rgba(240, 90, 40, 0.22);
}

.btn-primary:hover {
  background: #e45223;
}

.btn-outline {
  background: transparent;
  color: rgba(43, 43, 43, 0.92);
}

.btn-outline:hover {
  background: rgba(43, 43, 43, 0.04);
}

/* Cards (Prestations) */
.cards-grid {
  grid-template-columns: 1fr;
}

.card {
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.06);
  display: grid;
  gap: 10px;
}

.card-icon {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  border: 1px solid var(--color-line);
  background: linear-gradient(135deg, #ffffff, #f6f6f6);
  display: grid;
  place-items: center;
}

.card p {
  color: rgba(43, 43, 43, 0.86);
}

/* Gallery */
.gallery {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-line);
  background: #fff;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.gallery-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 12px 12px;
  font-size: 0.92rem;
  color: #fff;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.55));
}

/* Réalisations — cards projets terminés */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.project-card {
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform 280ms cubic-bezier(0.22, 1, 0.36, 1), box-shadow 280ms cubic-bezier(0.22, 1, 0.36, 1), border-color 280ms cubic-bezier(0.22, 1, 0.36, 1);
}

.project-card-link {
  display: block;
  color: inherit;
}

.project-card-media {
  display: block;
  overflow: hidden;
}

.project-card-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
  transition: filter 280ms cubic-bezier(0.22, 1, 0.36, 1);
}

.project-card-link:hover .project-card-media img,
.project-card-link:focus-visible .project-card-media img {
  filter: brightness(1.03);
}

.project-card-body {
  padding: 14px 16px 16px;
  display: grid;
  gap: 4px;
}

.project-card-body h3 {
  margin: 0;
  font-size: 1.04rem;
}

.project-card-body p {
  margin: 0;
  font-size: 0.95rem;
  color: rgba(43, 43, 43, 0.76);
}

.project-card-link:hover,
.project-card-link:focus-visible {
  transform: translateY(-3px);
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.10);
  border-color: rgba(240, 90, 40, 0.35);
}

/* About info strip */
.info-strip {
  border: 1px solid var(--color-line);
  background: rgba(255, 255, 255, 0.8);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  display: grid;
  gap: var(--space-3);
}

.info-label {
  display: block;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(43, 43, 43, 0.7);
  margin-bottom: 4px;
}

.info-value {
  font-weight: var(--fw-semibold);
}

/* Steps */
.steps {
  display: grid;
  gap: var(--space-3);
}

.step {
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.05);
}

.step p {
  margin-top: 8px;
  color: rgba(43, 43, 43, 0.86);
}

/* Contact */
.contact-card {
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.05);
}

.contact-list {
  margin-top: var(--space-3);
  display: grid;
  gap: var(--space-3);
}

.contact-label {
  display: block;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(43, 43, 43, 0.7);
  margin-bottom: 4px;
}

.social-icon-link {
  display: inline-flex;
  width: 34px;
  height: 34px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-line);
  border-radius: 8px;
  color: #0a66c2;
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.social-icon-link:hover,
.social-icon-link:focus-visible {
  border-color: rgba(10, 102, 194, 0.45);
  box-shadow: 0 10px 22px rgba(10, 102, 194, 0.16);
  transform: translateY(-1px);
}

.social-icon {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.form {
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.06);
  display: grid;
  gap: var(--space-3);
}

.field {
  display: grid;
  gap: 8px;
}

.field label {
  font-weight: var(--fw-semibold);
  font-size: 0.95rem;
}

.field input,
.field textarea {
  border: 1px solid var(--color-line);
  border-radius: 12px;
  padding: 12px 12px;
  background: #fff;
}

.field input:focus-visible,
.field textarea:focus-visible {
  box-shadow: var(--focus-ring);
  border-color: rgba(240, 90, 40, 0.55);
}

.form-hint {
  font-size: 0.92rem;
  color: rgba(43, 43, 43, 0.75);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-line);
  padding: var(--space-5) 0;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 10px;
  color: rgba(43, 43, 43, 0.8);
}

.footer-link {
  text-decoration: none;
}

/* Desktop */
@media (min-width: 760px) {
  .site-nav {
    display: inline-flex;
  }

  .burger,
  .nav-panel {
    display: none;
  }

  .cards-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .projects-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .cards-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .projects-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .footer-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}