/* ═══════════════════════════════════════════════════════
   LAROCHE PLOMBERIE — style.css
   Design premium inspiré de crimsoncopper.com
   Typographie: Cormorant Garamond + DM Sans
   ═══════════════════════════════════════════════════════ */

/* ─── RESET & ROOT ─── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Palette */
  --clr-dark:       #0f0f0e;
  --clr-dark-2:     #1a1a18;
  --clr-mid:        #2c2c28;
  --clr-gold:       #b8924a;
  --clr-gold-light: #d4ac6a;
  --clr-cream:      #f7f4ef;
  --clr-cream-2:    #ede9e1;
  --clr-text:       #2c2c28;
  --clr-muted:      #6b6b60;
  --clr-white:      #ffffff;

  /* Typography */
  --ff-display: 'Cormorant Garamond', Georgia, serif;
  --ff-body:    'DM Sans', system-ui, sans-serif;

  /* Spacing */
  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  2rem;
  --space-lg:  4rem;
  --space-xl:  7rem;

  /* Layout */
  --max-w: 1200px;
  --header-h: 76px;

  /* Transitions */
  --ease: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--ff-body);
  font-weight: 300;
  color: var(--clr-text);
  background: var(--clr-cream);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

/* ─── UTILITIES ─── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 3rem);
}

.section-label {
  display: inline-block;
  font-family: var(--ff-body);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--clr-gold);
  margin-bottom: var(--space-sm);
}

.section-label--light {
  color: var(--clr-gold-light);
}

.section-title {
  font-family: var(--ff-display);
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  font-weight: 300;
  line-height: 1.15;
  color: var(--clr-dark);
  margin-bottom: var(--space-md);
}

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

.section-title--light {
  color: var(--clr-cream);
}

.section-title--light em {
  color: var(--clr-gold-light);
}

.section-intro {
  font-size: 1.05rem;
  color: var(--clr-cream-2);
  max-width: 560px;
  margin-inline: auto;
  margin-bottom: var(--space-lg);
  opacity: 0.85;
}

.section-head {
  text-align: center;
  margin-bottom: var(--space-lg);
}

/* ─── BUTTONS ─── */
.btn {
  display: inline-block;
  font-family: var(--ff-body);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 0.875em 2em;
  border: 1.5px solid transparent;
  transition: background var(--ease), color var(--ease), border-color var(--ease), transform var(--ease);
  white-space: nowrap;
}

.btn--cta {
  background: var(--clr-gold);
  color: var(--clr-dark);
  border-color: var(--clr-gold);
}

.btn--cta:hover,
.btn--cta:focus-visible {
  background: var(--clr-gold-light);
  border-color: var(--clr-gold-light);
  transform: translateY(-2px);
}

.btn--ghost {
  background: transparent;
  color: var(--clr-cream);
  border-color: rgba(255,255,255,0.4);
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  border-color: var(--clr-cream);
  transform: translateY(-2px);
}

.btn--dark {
  background: var(--clr-dark);
  color: var(--clr-cream);
  border-color: var(--clr-dark);
}

.btn--dark:hover,
.btn--dark:focus-visible {
  background: var(--clr-mid);
  border-color: var(--clr-mid);
  transform: translateY(-2px);
}

.btn--header {
  background: var(--clr-gold);
  color: var(--clr-dark);
  border-color: var(--clr-gold);
  font-size: 0.72rem;
  padding: 0.7em 1.5em;
}

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

/* ─── HEADER ─── */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  background: var(--clr-dark);
  border-bottom: 1px solid rgba(184,146,74,0.2);
}

.header__inner {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 3rem);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.logo__mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--clr-gold);
  color: var(--clr-dark);
  font-family: var(--ff-display);
  font-size: 1.4rem;
  font-weight: 600;
  flex-shrink: 0;
}

.logo__text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.logo__text strong {
  font-family: var(--ff-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--clr-cream);
  letter-spacing: 0.05em;
}

.logo__text em {
  font-family: var(--ff-body);
  font-size: 0.65rem;
  font-weight: 300;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--clr-gold);
  font-style: normal;
}

.logo--footer .logo__text strong { color: var(--clr-cream); }

/* Desktop nav */
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav__list {
  display: flex;
  gap: clamp(1rem, 3vw, 2rem);
}

.nav__link {
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(247,244,239,0.7);
  transition: color var(--ease);
  position: relative;
  padding-bottom: 2px;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--clr-gold);
  transition: width var(--ease);
}

.nav__link:hover {
  color: var(--clr-cream);
}

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

/* Mobile burger */
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.burger span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--clr-cream);
  transition: transform var(--ease), opacity var(--ease);
}

.burger-toggle {
  display: none;
}

.nav--mobile {
  display: none;
  position: fixed;
  inset: var(--header-h) 0 0;
  background: var(--clr-dark-2);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  z-index: 99;
}

.nav--mobile .nav__list {
  flex-direction: column;
  text-align: center;
  gap: var(--space-md);
}

.nav--mobile .nav__list a {
  font-family: var(--ff-display);
  font-size: 2rem;
  font-weight: 300;
  color: var(--clr-cream);
  letter-spacing: 0.05em;
  text-transform: none;
}

.nav--mobile .nav__list a:hover {
  color: var(--clr-gold);
}

.burger-toggle:checked ~ .nav--mobile {
  display: flex;
}

.burger-toggle:checked + .burger span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.burger-toggle:checked + .burger span:nth-child(2) {
  opacity: 0;
}

.burger-toggle:checked + .burger span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ─── HERO ─── */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  background: var(--clr-dark);
  padding-top: var(--header-h);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 70% 50%, rgba(184,146,74,0.12) 0%, transparent 65%),
    radial-gradient(ellipse 40% 60% at 10% 80%, rgba(184,146,74,0.06) 0%, transparent 60%);
}

/* Subtle grid texture */
.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(184,146,74,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(184,146,74,0.04) 1px, transparent 1px);
  background-size: 80px 80px;
}

.hero__inner {
  position: relative;
  z-index: 1;
  padding-block: var(--space-xl);
}

.hero__eyebrow {
  font-family: var(--ff-body);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--clr-gold);
  margin-bottom: 1.5rem;
}

.hero__title {
  font-family: var(--ff-display);
  font-size: clamp(2.8rem, 7vw, 6rem);
  font-weight: 300;
  line-height: 1.08;
  color: var(--clr-cream);
  margin-bottom: var(--space-md);
  max-width: 14ch;
}

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

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 300;
  color: rgba(247,244,239,0.65);
  margin-bottom: var(--space-md);
  max-width: 44ch;
  letter-spacing: 0.02em;
}

.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: var(--space-lg);
}

.badge {
  font-family: var(--ff-body);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--clr-gold-light);
  border: 1px solid rgba(184,146,74,0.3);
  padding: 0.4em 1em;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.hero__scroll-hint {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: 1.2rem;
  color: rgba(184,146,74,0.5);
  animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ─── STATS BAR ─── */
.stats {
  background: var(--clr-gold);
  padding: var(--space-md) 0;
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(0,0,0,0.12);
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 1.5rem var(--space-sm);
  background: var(--clr-gold);
  gap: 0.25rem;
}

.stat__value {
  font-family: var(--ff-display);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 600;
  color: var(--clr-dark);
}

.stat__label {
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-dark);
  opacity: 0.75;
}

/* ─── INTRO ─── */
.intro {
  padding: var(--space-xl) 0;
  background: var(--clr-cream);
}

.intro__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 6vw, 6rem);
  align-items: center;
}

.intro__text .section-label { display: block; }
.intro__text .section-title { margin-bottom: var(--space-sm); }

.intro__text p {
  color: var(--clr-muted);
  margin-bottom: var(--space-sm);
  font-size: 0.98rem;
  line-height: 1.8;
}

.intro__text .btn { margin-top: var(--space-sm); }

.intro__visual {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.intro__card {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 1.25rem var(--space-md);
  background: var(--clr-cream-2);
  border-left: 2px solid var(--clr-gold);
  transition: transform var(--ease), background var(--ease);
}

.intro__card:hover {
  transform: translateX(4px);
  background: #e8e3d9;
}

.intro__icon {
  font-size: 1.4rem;
  flex-shrink: 0;
}

.intro__card p {
  font-size: 0.9rem;
  color: var(--clr-muted);
  line-height: 1.5;
}

/* ─── SERVICES ─── */
.services {
  background: var(--clr-dark);
  padding: var(--space-xl) 0;
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(255,255,255,0.05);
  margin-bottom: var(--space-lg);
}

.service-card {
  padding: clamp(1.5rem, 3vw, 2.5rem);
  background: var(--clr-dark-2);
  transition: background var(--ease);
  position: relative;
  overflow: hidden;
}

.service-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--clr-gold);
  transition: width 0.5s var(--ease);
}

.service-card:hover {
  background: var(--clr-mid);
}

.service-card:hover::after {
  width: 100%;
}

.service-card__num {
  font-family: var(--ff-display);
  font-size: 3rem;
  font-weight: 300;
  color: rgba(184,146,74,0.15);
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.service-card__title {
  font-family: var(--ff-display);
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--clr-cream);
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.service-card__desc {
  font-size: 0.88rem;
  color: rgba(247,244,239,0.5);
  line-height: 1.75;
}

.services__cta {
  text-align: center;
}

/* ─── POURQUOI ─── */
.pourquoi {
  background: var(--clr-cream);
  padding: var(--space-xl) 0;
}

.pourquoi__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.pourquoi__item {
  padding: var(--space-md);
  border-top: 1px solid var(--clr-cream-2);
  transition: border-color var(--ease);
}

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

.pourquoi__icon {
  font-size: 2rem;
  margin-bottom: 1rem;
  display: block;
}

.pourquoi__item h3 {
  font-family: var(--ff-display);
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--clr-dark);
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.pourquoi__item p {
  font-size: 0.88rem;
  color: var(--clr-muted);
  line-height: 1.8;
}

/* ─── ZONES ─── */
.zones {
  background: var(--clr-dark-2);
  padding: var(--space-xl) 0;
}

.zones__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(255,255,255,0.04);
}

.zone-block {
  padding: 2rem;
  background: var(--clr-dark-2);
  border-bottom: 2px solid transparent;
  transition: border-color var(--ease), background var(--ease);
}

.zone-block:hover {
  background: var(--clr-mid);
  border-bottom-color: var(--clr-gold);
}

.zone-block--accent {
  background: rgba(184,146,74,0.06);
  border-bottom-color: var(--clr-gold);
}

.zone-block__title {
  font-family: var(--ff-display);
  font-size: 1.15rem;
  font-weight: 400;
  color: var(--clr-cream);
  margin-bottom: 0.75rem;
}

.zone-block p {
  font-size: 0.85rem;
  color: rgba(247,244,239,0.5);
  line-height: 1.7;
}

/* ─── CONTACT ─── */
.contact {
  background: var(--clr-cream-2);
  padding: var(--space-xl) 0;
}

.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 6vw, 6rem);
  align-items: start;
}

.contact__info .section-label { display: block; }
.contact__info .section-title { color: var(--clr-dark); }

.contact__info > p {
  font-size: 0.98rem;
  color: var(--clr-muted);
  margin-bottom: var(--space-md);
  line-height: 1.8;
}

.contact__phone {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--ff-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 300;
  color: var(--clr-gold);
  margin-bottom: var(--space-md);
  transition: color var(--ease);
}

.contact__phone:hover {
  color: var(--clr-dark);
}

.contact__phone-icon {
  font-size: 1.2rem;
}

.contact__details {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.contact__details li {
  font-size: 0.85rem;
  color: var(--clr-muted);
  padding-left: 1em;
  position: relative;
}

.contact__details li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--clr-gold);
  font-size: 0.8em;
}

/* Form */
.contact__form-wrap {
  background: var(--clr-white);
  padding: clamp(1.5rem, 4vw, 2.5rem);
  box-shadow: 0 2px 40px rgba(0,0,0,0.06);
}

.contact__form-title {
  font-family: var(--ff-display);
  font-size: 1.6rem;
  font-weight: 400;
  color: var(--clr-dark);
  margin-bottom: var(--space-md);
}

.form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form__field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form__label {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--clr-muted);
}

.form__input {
  width: 100%;
  padding: 0.875rem 1rem;
  background: var(--clr-cream);
  border: 1px solid var(--clr-cream-2);
  border-radius: 0;
  font-family: var(--ff-body);
  font-size: 0.95rem;
  font-weight: 300;
  color: var(--clr-dark);
  outline: none;
  transition: border-color var(--ease), background var(--ease);
  appearance: none;
}

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

.form__input::placeholder {
  color: rgba(44,44,40,0.35);
}

.form__textarea {
  min-height: 110px;
  resize: vertical;
}

.form__submit {
  width: 100%;
  text-align: center;
  border: none;
}

/* ─── FOOTER ─── */
.footer {
  background: var(--clr-dark);
  padding-top: var(--space-xl);
}

.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid rgba(255,255,255,0.07);
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer__brand p {
  font-size: 0.88rem;
  color: rgba(247,244,239,0.45);
  line-height: 1.7;
  max-width: 26ch;
}

.footer__phone {
  font-family: var(--ff-display);
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--clr-gold);
  transition: color var(--ease);
}

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

.footer__heading {
  font-family: var(--ff-body);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--clr-gold);
  margin-bottom: 1.25rem;
}

.footer__list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer__list li {
  font-size: 0.85rem;
  color: rgba(247,244,239,0.45);
  line-height: 1.5;
  transition: color var(--ease);
}

.footer__list li:hover {
  color: rgba(247,244,239,0.75);
}

.footer__bottom {
  padding: var(--space-md) 0;
}

.footer__bottom p {
  font-size: 0.75rem;
  color: rgba(247,244,239,0.25);
  letter-spacing: 0.05em;
  text-align: center;
}

/* ═══════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════ */

/* ─── TABLET (≤ 1024px) ─── */
@media (max-width: 1024px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

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

  .footer__brand {
    grid-column: 1 / -1;
  }
}

/* ─── MOBILE (≤ 768px) ─── */
@media (max-width: 768px) {
  :root {
    --header-h: 64px;
    --space-xl: 4rem;
    --space-lg: 2.5rem;
  }

  /* Show burger, hide desktop nav */
  .nav {
    display: none;
  }

  .burger {
    display: flex;
    /* Trick: label comes AFTER input in DOM but we show it via header flex */
    order: 3;
  }

  /* Hero */
  .hero__title {
    font-size: clamp(2.2rem, 9vw, 3.5rem);
  }

  .hero__cta {
    flex-direction: column;
    align-items: flex-start;
  }

  /* Stats */
  .stats__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Intro */
  .intro__inner {
    grid-template-columns: 1fr;
  }

  .intro__visual {
    display: none;
  }

  /* Services */
  .services__grid {
    grid-template-columns: 1fr;
  }

  /* Pourquoi */
  .pourquoi__grid {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }

  /* Zones */
  .zones__grid {
    grid-template-columns: 1fr;
  }

  /* Contact */
  .contact__inner {
    grid-template-columns: 1fr;
  }

  .contact__phone {
    font-size: clamp(1.8rem, 8vw, 2.4rem);
  }

  /* Footer */
  .footer__inner {
    grid-template-columns: 1fr;
  }

  .footer__brand {
    grid-column: auto;
  }
}

/* ─── SMALL MOBILE (≤ 480px) ─── */
@media (max-width: 480px) {
  .stats__grid {
    grid-template-columns: 1fr 1fr;
  }

  .hero__badges {
    flex-direction: column;
    align-items: flex-start;
  }

  .section-title {
    font-size: clamp(1.8rem, 8vw, 2.4rem);
  }
}