/* ============================================================
   Lefèvres Services — Main Stylesheet
   Architecture : Design tokens → Reset → Base → Layout → Utilities
   ============================================================ */

/* ── 1. Design Tokens ── */
:root {
  /* Palette */
  --clr-navy:        #0d1b2e;
  --clr-navy-light:  #162640;
  --clr-gold:        #c9a84c;
  --clr-gold-light:  #e4c97e;
  --clr-cream:       #f5f2ec;
  --clr-white:       #ffffff;
  --clr-text:        #1a2433;
  --clr-text-muted:  #5a6a7e;
  --clr-border:      #e0ddd6;
  --clr-overlay:     rgba(13, 27, 46, 0.72);

  /* Typography */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'DM Sans', system-ui, sans-serif;

  --fs-xs:   0.75rem;
  --fs-sm:   0.875rem;
  --fs-base: 1rem;
  --fs-lg:   1.125rem;
  --fs-xl:   1.375rem;
  --fs-2xl:  1.75rem;
  --fs-3xl:  2.25rem;
  --fs-4xl:  3rem;
  --fs-5xl:  3.75rem;

  --fw-regular: 400;
  --fw-medium:  500;
  --fw-semibold:600;
  --fw-bold:    700;

  --lh-tight:  1.2;
  --lh-normal: 1.55;
  --lh-loose:  1.75;

  /* Spacing scale */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Radii */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(13,27,46,.08), 0 1px 2px rgba(13,27,46,.06);
  --shadow-md:  0 4px 16px rgba(13,27,46,.10), 0 2px 6px rgba(13,27,46,.06);
  --shadow-lg:  0 12px 40px rgba(13,27,46,.14), 0 4px 12px rgba(13,27,46,.08);
  --shadow-xl:  0 24px 64px rgba(13,27,46,.18);

  /* Transitions */
  --ease-out:   cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast:   150ms;
  --duration-base:   280ms;
  --duration-slow:   480ms;

  /* Layout */
  --container-max: 1200px;
  --container-pad: clamp(var(--space-6), 5vw, var(--space-12));
  --nav-height: 72px;
}

/* ── 2. Reset ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  color: var(--clr-text);
  background-color: var(--clr-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

ul, ol { list-style: none; }

button, input, textarea, select {
  font: inherit;
  border: none;
  background: none;
  outline: none;
}

button { cursor: pointer; }

/* ── 3. Typography base ── */
h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  line-height: var(--lh-tight);
  color: var(--clr-navy);
}

p { max-width: 65ch; }

/* ── 4. Layout ── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.section {
  padding-block: var(--space-24);
}

.section--alt {
  background-color: var(--clr-cream);
}

/* ── 5. Navbar ── */
.navbar {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  height: var(--nav-height);
  z-index: 900;
  transition: background var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out);
}

.navbar--scrolled {
  background: rgba(13, 27, 46, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-md);
}

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

.navbar__logo {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.navbar__logo-name {
  font-family: var(--font-display);
  font-size: var(--fs-xl);
  font-weight: var(--fw-bold);
  color: var(--clr-white);
  letter-spacing: -0.01em;
}

.navbar__logo-tagline {
  font-size: var(--fs-xs);
  color: var(--clr-gold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: var(--fw-medium);
}

.navbar__nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.navbar__link {
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: rgba(255,255,255,0.80);
  letter-spacing: 0.03em;
  transition: color var(--duration-fast);
  position: relative;
}

.navbar__link::after {
  content: '';
  position: absolute;
  inset-block-end: -3px;
  inset-inline-start: 0;
  width: 0;
  height: 1px;
  background: var(--clr-gold);
  transition: width var(--duration-base) var(--ease-out);
}

.navbar__link:hover { color: var(--clr-white); }
.navbar__link:hover::after { width: 100%; }

.navbar__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: var(--clr-gold);
  color: var(--clr-navy);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  border-radius: var(--radius-sm);
  letter-spacing: 0.02em;
  transition: background var(--duration-fast), transform var(--duration-fast);
}

.navbar__cta:hover {
  background: var(--clr-gold-light);
  transform: translateY(-1px);
}

/* Hamburger */
.navbar__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  cursor: pointer;
}

.navbar__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--clr-white);
  border-radius: var(--radius-full);
  transition: transform var(--duration-base) var(--ease-out),
              opacity var(--duration-base);
}

.navbar__hamburger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.navbar__hamburger.is-open span:nth-child(2) { opacity: 0; }
.navbar__hamburger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.navbar__mobile {
  position: fixed;
  inset-block-start: calc(var(--nav-height) + 0.5rem);
  inset-inline: 0;
  background: var(--clr-navy);
  padding: var(--space-6) var(--container-pad) var(--space-8);
  display: none;
  flex-direction: column;
  gap: var(--space-4);
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-1rem);
  transition: transform var(--duration-base) var(--ease-out), opacity var(--duration-base) var(--ease-out), visibility var(--duration-base) var(--ease-out);
  z-index: 899;
  box-shadow: var(--shadow-lg);
}

.navbar__mobile.is-open {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.navbar__mobile-link {
  font-size: var(--fs-lg);
  color: rgba(255,255,255,0.85);
  padding-block: var(--space-3);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  font-weight: var(--fw-medium);
  transition: color var(--duration-fast);
}

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

/* ── 6. Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease-out);
  cursor: pointer;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.btn--primary {
  background: var(--clr-gold);
  color: var(--clr-navy);
}

.btn--primary:hover {
  background: var(--clr-gold-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201,168,76,.35);
}

.btn--outline {
  border: 1.5px solid rgba(255,255,255,0.4);
  color: var(--clr-white);
}

.btn--outline:hover {
  border-color: var(--clr-white);
  background: rgba(255,255,255,0.08);
}

.btn--dark {
  background: var(--clr-navy);
  color: var(--clr-white);
}

.btn--dark:hover {
  background: var(--clr-navy-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ── 7. Section header ── */
.section-header {
  margin-bottom: var(--space-16);
}

.section-header--center {
  text-align: center;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--clr-gold);
  margin-bottom: var(--space-4);
}

.section-label::before {
  content: '';
  width: 28px;
  height: 1px;
  background: var(--clr-gold);
}

.section-title {
  font-size: clamp(var(--fs-2xl), 4vw, var(--fs-4xl));
  color: var(--clr-navy);
  margin-bottom: var(--space-5);
}

.section-title em {
  font-style: italic;
  color: var(--clr-gold);
}

.section-desc {
  font-size: var(--fs-lg);
  color: var(--clr-text-muted);
  line-height: var(--lh-loose);
  max-width: 52ch;
}

.section-header--center .section-desc {
  margin-inline: auto;
}

/* ── 8. Cards ── */
.card {
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out);
  overflow: hidden;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* ── 9. Badge ── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.05em;
}

.badge--gold {
  background: rgba(201,168,76,.15);
  color: var(--clr-gold);
}

/* ── 10. Footer ── */
.footer {
  background: var(--clr-navy);
  color: rgba(255,255,255,0.70);
  padding-block: var(--space-16) var(--space-8);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-12);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid rgba(255,255,255,0.10);
  margin-bottom: var(--space-8);
}

.footer__brand-name {
  font-family: var(--font-display);
  font-size: var(--fs-xl);
  color: var(--clr-white);
  margin-bottom: var(--space-2);
}

.footer__brand-tagline {
  font-size: var(--fs-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-gold);
  margin-bottom: var(--space-5);
}

.footer__brand-desc {
  font-size: var(--fs-sm);
  line-height: var(--lh-loose);
  max-width: 34ch;
}

.footer__col-title {
  font-family: var(--font-display);
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  color: var(--clr-white);
  margin-bottom: var(--space-5);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__link {
  font-size: var(--fs-sm);
  color: rgba(255,255,255,0.60);
  transition: color var(--duration-fast);
}

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

.footer__contact-item {
  display: flex;
  gap: var(--space-3);
  font-size: var(--fs-sm);
  margin-bottom: var(--space-4);
  line-height: var(--lh-normal);
}

.footer__contact-icon {
  flex-shrink: 0;
  width: 16px;
  margin-top: 3px;
  opacity: 0.6;
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.footer__copy {
  font-size: var(--fs-xs);
  color: rgba(255,255,255,0.40);
}

.footer__legal-links {
  display: flex;
  gap: var(--space-6);
}

.footer__legal-link {
  font-size: var(--fs-xs);
  color: rgba(255,255,255,0.40);
  transition: color var(--duration-fast);
}

.footer__legal-link:hover { color: rgba(255,255,255,0.70); }

/* ── 11. Skip to content (accessibility) ── */
.skip-link {
  position: absolute;
  inset-block-start: -100%;
  inset-inline-start: var(--space-4);
  padding: var(--space-3) var(--space-6);
  background: var(--clr-gold);
  color: var(--clr-navy);
  font-weight: var(--fw-semibold);
  border-radius: var(--radius-sm);
  z-index: 9999;
  transition: top var(--duration-fast);
}

.skip-link:focus {
  inset-block-start: var(--space-4);
}

/* ── 12. Divider ── */
.divider {
  width: 48px;
  height: 2px;
  background: var(--clr-gold);
  margin-block: var(--space-6);
}

.divider--center { margin-inline: auto; }

/* ── 13. Animations ── */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.animate-fade-in-up {
  opacity: 0;
  animation: fadeInUp var(--duration-slow) var(--ease-out) forwards;
}

.animate-fade-in-up--delay-1 { animation-delay: 100ms; }
.animate-fade-in-up--delay-2 { animation-delay: 200ms; }
.animate-fade-in-up--delay-3 { animation-delay: 320ms; }
.animate-fade-in-up--delay-4 { animation-delay: 440ms; }

/* ── 14. Responsive ── */
@media (max-width: 1024px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-10);
  }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 64px;
  }

  .navbar__nav { display: none; }
  .navbar__cta { display: none; }
  .navbar__hamburger { display: flex; }
  .navbar__mobile { display: flex; }

  .section {
    padding-block: var(--space-16);
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

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

@media (max-width: 480px) {
  .section {
    padding-block: var(--space-12);
  }
}

/* ── 15. Focus visible (accessibility) ── */
:focus-visible {
  outline: 2px solid var(--clr-gold);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ── 16. Print ── */
@media print {
  .navbar, .footer { display: none; }
  body { color: #000; background: #fff; }
}


/* ── Utilities ── */
.u-text-gold-light { color: var(--clr-gold-light); }
.u-text-muted { color: var(--clr-text-muted); }
.u-text-center { text-align: center; }
.u-font-display { font-family: var(--font-display); }
.u-font-normal { font-style: normal; }
.u-block-link { display: block; }
.u-fw-semibold { font-weight: var(--fw-semibold); }
.u-mt-1 { margin-top: var(--space-1); }
.u-mt-3 { margin-top: var(--space-3); }
.u-mt-4 { margin-top: var(--space-4); }
.u-mt-6 { margin-top: var(--space-6); }
.u-mt-8 { margin-top: var(--space-8); }
.u-mx-auto { margin-inline: auto; }
.u-w-full { width: 100%; }
.u-justify-center { justify-content: center; }
.u-flex-center-wrap {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}
.u-min-h-80vh {
  min-height: 80vh;
  display: flex;
  align-items: center;
}
.u-hero-404 {
  font-family: var(--font-display);
  font-size: clamp(5rem, 15vw, 10rem);
  color: var(--clr-gold-light);
  opacity: .3;
  line-height: 1;
  margin-bottom: var(--space-6);
}
.u-icon-circle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(201,168,76,.15);
  color: var(--clr-gold-light);
  margin-bottom: var(--space-8);
}
.u-hidden {
  display: none !important;
}

.navbar__mobile-cta {
  margin-top: 1rem;
  width: 100%;
  justify-content: center;
}

.contact-gold-link {
  color: var(--clr-gold);
  font-size: var(--fs-sm);
}

.contact-meta-text,
.contact-small-note {
  font-size: var(--fs-xs);
}

.home-muted-copy {
  line-height: var(--lh-loose);
}

.footer__bottom--legal {
  border-top: 1px solid rgba(255,255,255,.10);
  padding-top: var(--space-8);
}

.services-btn-spacing {
  margin-top: var(--space-8);
}

.contact-address-small { font-size: var(--fs-sm); }