/* =========================================================
   MCF RÉNOVATION — Stylesheet global
   Esthétique : industriel & moderne, béton, accent rouge MCF
   ========================================================= */

/* ---------- Tokens ---------- */
:root {
    /* Palette */
    --c-bg: #0e0e0f;
    --c-bg-2: #161618;
    --c-bg-3: #1f1f23;
    --c-surface: #f6f5f2;       /* béton clair */
    --c-surface-2: #ecebe6;
    --c-line: #2a2a2e;
    --c-line-light: #d9d6cf;
    --c-text: #0e0e0f;
    --c-text-soft: #4a4a50;
    --c-text-on-dark: #f6f5f2;
    --c-text-on-dark-soft: #a3a3a8;
    --c-accent: #e63027;        /* rouge MCF */
    --c-accent-deep: #b71d18;
    --c-blue: #1f3a78;          /* bleu marine MCF */
    --c-warn: #f5a623;

    /* Typo */
    --ff-display: "Anton", "Oswald", "Bebas Neue", Impact, sans-serif;
    --ff-body: "Inter", "Helvetica Neue", Arial, sans-serif;
    --ff-mono: "JetBrains Mono", ui-monospace, "Courier New", monospace;

    /* Layout */
    --container: 1280px;
    --gutter: clamp(20px, 4vw, 56px);
    --section-pad-y: clamp(72px, 10vw, 140px);
    --radius: 4px;
    --radius-lg: 10px;

    /* Motion */
    --ease: cubic-bezier(.2, .7, .2, 1);
    --dur: .45s;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--ff-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--c-text);
    background: var(--c-surface);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
}
img, svg, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
input, textarea, select { font-family: inherit; font-size: inherit; color: inherit; }
h1, h2, h3, h4, h5 { margin: 0; font-weight: 700; line-height: 1.05; letter-spacing: -.01em; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }

/* ---------- Type ---------- */
.eyebrow {
    font-family: var(--ff-mono);
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: .18em;
    color: var(--c-accent);
    display: inline-flex;
    align-items: center;
    gap: 10px;
}
.eyebrow::before {
    content: "";
    width: 28px;
    height: 1px;
    background: currentColor;
}
.display {
    font-family: var(--ff-display);
    font-weight: 400;
    line-height: .92;
    letter-spacing: -.005em;
    text-transform: uppercase;
    font-size: clamp(44px, 7vw, 110px);
}
.h1 { font-size: clamp(40px, 6vw, 88px); font-family: var(--ff-display); font-weight: 400; text-transform: uppercase; line-height: .95; }
.h2 { font-size: clamp(32px, 4.6vw, 64px); font-family: var(--ff-display); font-weight: 400; text-transform: uppercase; line-height: 1; }
.h3 { font-size: clamp(22px, 2.4vw, 32px); }
.lead { font-size: clamp(17px, 1.4vw, 20px); color: var(--c-text-soft); line-height: 1.55; max-width: 60ch; }

/* ---------- Container & layout ---------- */
.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding-inline: var(--gutter);
}
.section { padding-block: var(--section-pad-y); }
.section--dark { background: var(--c-bg); color: var(--c-text-on-dark); }
.section--dark .lead { color: var(--c-text-on-dark-soft); }
.section--concrete {
    background:
      radial-gradient(1200px 600px at 80% -10%, rgba(0,0,0,.04), transparent 60%),
      radial-gradient(800px 400px at 0% 110%, rgba(0,0,0,.05), transparent 60%),
      var(--c-surface);
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 16px 28px;
    font-family: var(--ff-mono);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: .14em;
    font-weight: 500;
    border: 1px solid transparent;
    transition: transform var(--dur) var(--ease),
                background var(--dur) var(--ease),
                color var(--dur) var(--ease),
                border-color var(--dur) var(--ease);
    position: relative;
    overflow: hidden;
}
.btn .arrow {
    width: 18px; height: 18px;
    transition: transform var(--dur) var(--ease);
}
.btn:hover .arrow { transform: translateX(4px); }

.btn--primary {
    background: var(--c-accent);
    color: #fff;
}
.btn--primary:hover { background: var(--c-accent-deep); }

.btn--dark {
    background: var(--c-bg);
    color: var(--c-text-on-dark);
}
.btn--dark:hover { background: var(--c-accent); }

.btn--ghost {
    border-color: currentColor;
    color: inherit;
}
.btn--ghost:hover { background: var(--c-text); color: var(--c-surface); border-color: var(--c-text); }

.btn--ghost-light {
    border-color: rgba(255,255,255,.3);
    color: var(--c-text-on-dark);
}
.btn--ghost-light:hover { background: var(--c-accent); border-color: var(--c-accent); }

/* ---------- Header ---------- */
.site-header {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 100;
    background: rgba(14, 14, 15, .92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: var(--c-text-on-dark);
    border-bottom: 1px solid rgba(255,255,255,.07);
    transition: background var(--dur) var(--ease);
}
.site-header__top {
    display: none;
    padding-block: 8px;
    border-bottom: 1px solid rgba(255,255,255,.07);
    font-family: var(--ff-mono);
    font-size: 12px;
    letter-spacing: .08em;
    color: var(--c-text-on-dark-soft);
}
@media (min-width: 1024px) { .site-header__top { display: block; } }
.site-header__top-inner {
    display: flex;
    justify-content: space-between;
    gap: 24px;
}
.site-header__top a { transition: color var(--dur) var(--ease); }
.site-header__top a:hover { color: var(--c-accent); }
.site-header__top-info { display: flex; gap: 24px; }
.site-header__top-info span { display: inline-flex; align-items: center; gap: 8px; }

.site-header__main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-block: 16px;
    gap: 24px;
}
.site-header__logo {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}
.site-header__logo img {
    height: 40px;
    width: auto;
    filter: brightness(0) invert(1);
}
.site-header__logo .logo-text {
    font-family: var(--ff-display);
    font-size: 22px;
    letter-spacing: .04em;
    line-height: 1;
}
.site-header__logo .logo-text strong { color: var(--c-accent); font-weight: 400; }

.site-nav {
    display: none;
}
@media (min-width: 1024px) { .site-nav { display: flex; gap: 4px; } }
.site-nav a {
    position: relative;
    padding: 12px 18px;
    font-family: var(--ff-mono);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .14em;
    color: var(--c-text-on-dark-soft);
    transition: color var(--dur) var(--ease);
}
.site-nav a::after {
    content: "";
    position: absolute;
    left: 18px; right: 18px; bottom: 8px;
    height: 1px;
    background: var(--c-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--dur) var(--ease);
}
.site-nav a:hover, .site-nav a[aria-current="page"] {
    color: var(--c-text-on-dark);
}
.site-nav a:hover::after, .site-nav a[aria-current="page"]::after { transform: scaleX(1); }

.site-header__cta {
    display: none;
}
@media (min-width: 1024px) { .site-header__cta { display: inline-flex; } }

.menu-toggle {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px; height: 44px;
    align-items: center;
}
@media (min-width: 1024px) { .menu-toggle { display: none; } }
.menu-toggle span {
    display: block;
    width: 22px; height: 2px;
    background: var(--c-text-on-dark);
    transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav {
    position: fixed;
    inset: 0;
    z-index: 99;
    background: var(--c-bg);
    color: var(--c-text-on-dark);
    padding: 120px var(--gutter) 40px;
    transform: translateX(100%);
    transition: transform .5s var(--ease);
    overflow-y: auto;
}
.mobile-nav[data-open="true"] { transform: translateX(0); }
.mobile-nav ul { display: flex; flex-direction: column; gap: 4px; }
.mobile-nav a {
    display: block;
    padding: 18px 0;
    font-family: var(--ff-display);
    font-size: 32px;
    text-transform: uppercase;
    border-bottom: 1px solid rgba(255,255,255,.08);
}
.mobile-nav a:hover { color: var(--c-accent); }
.mobile-nav__footer {
    margin-top: 40px;
    font-family: var(--ff-mono);
    font-size: 13px;
    color: var(--c-text-on-dark-soft);
    line-height: 1.9;
}
.mobile-nav__footer a:hover { color: var(--c-accent); }

/* offset for fixed header */
main { padding-top: 76px; }
@media (min-width: 1024px) { main { padding-top: 110px; } }

/* ---------- Footer ---------- */
.site-footer {
    background: var(--c-bg);
    color: var(--c-text-on-dark);
    padding-top: 80px;
    padding-bottom: 32px;
    position: relative;
    overflow: hidden;
}
.site-footer__giant {
    font-family: var(--ff-display);
    font-size: clamp(60px, 14vw, 220px);
    line-height: .9;
    color: rgba(255,255,255,.05);
    text-transform: uppercase;
    text-align: center;
    margin-top: 60px;
    pointer-events: none;
    user-select: none;
    letter-spacing: -.01em;
}
.site-footer__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
}
@media (min-width: 768px) {
    .site-footer__grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 56px; }
}
.site-footer h4 {
    font-family: var(--ff-mono);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .14em;
    color: var(--c-text-on-dark-soft);
    margin-bottom: 20px;
    font-weight: 500;
}
.site-footer ul { display: flex; flex-direction: column; gap: 10px; }
.site-footer a { color: var(--c-text-on-dark); transition: color var(--dur) var(--ease); }
.site-footer a:hover { color: var(--c-accent); }
.site-footer__brand-text {
    color: var(--c-text-on-dark-soft);
    font-size: 14px;
    line-height: 1.7;
    margin-top: 16px;
    max-width: 32ch;
}
.site-footer__bottom {
    margin-top: 64px;
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,.08);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 16px;
    font-family: var(--ff-mono);
    font-size: 11px;
    color: var(--c-text-on-dark-soft);
    text-transform: uppercase;
    letter-spacing: .1em;
}
.site-footer__logo {
    display: flex;
    align-items: center;
    gap: 12px;
}
.site-footer__logo img { height: 44px; filter: brightness(0) invert(1); }

/* ---------- WhatsApp floating ---------- */
.wa-float {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 90;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: #25d366;
    color: #fff;
    padding: 14px 18px 14px 14px;
    border-radius: 999px;
    font-family: var(--ff-mono);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .1em;
    box-shadow: 0 12px 30px rgba(37, 211, 102, .35), 0 4px 8px rgba(0,0,0,.15);
    transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.wa-float:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 18px 40px rgba(37, 211, 102, .45), 0 6px 12px rgba(0,0,0,.2);
    color: #fff;
}
.wa-float__icon {
    width: 32px; height: 32px;
    background: #fff;
    border-radius: 50%;
    display: grid; place-items: center;
    color: #25d366;
}
.wa-float__icon svg { width: 18px; height: 18px; }
.wa-float__pulse {
    position: absolute;
    inset: 0;
    border-radius: 999px;
    box-shadow: 0 0 0 0 rgba(37, 211, 102, .55);
    animation: wa-pulse 2.4s var(--ease) infinite;
    pointer-events: none;
}
@keyframes wa-pulse {
    0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, .55); }
    70% { box-shadow: 0 0 0 22px rgba(37, 211, 102, 0); }
    100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}
@media (max-width: 600px) {
    .wa-float__label { display: none; }
    .wa-float { padding: 12px; }
}

/* ---------- Reveal animations ---------- */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity .9s var(--ease), transform .9s var(--ease);
    transition-delay: var(--reveal-delay, 0s);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

.reveal-mask {
    overflow: hidden;
}
.reveal-mask > * {
    transform: translateY(110%);
    transition: transform 1s var(--ease);
    transition-delay: var(--reveal-delay, 0s);
    display: block;
}
.reveal-mask.is-visible > * { transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
    .reveal, .reveal-mask > * { opacity: 1 !important; transform: none !important; transition: none !important; }
    .wa-float__pulse { animation: none; }
}

/* ---------- Page hero (sub-pages) ---------- */
.page-hero {
    background: var(--c-bg);
    color: var(--c-text-on-dark);
    padding: clamp(80px, 12vw, 160px) 0 clamp(60px, 8vw, 100px);
    position: relative;
    overflow: hidden;
}
.page-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
      linear-gradient(135deg, rgba(230,48,39,.08), transparent 50%),
      repeating-linear-gradient(45deg, transparent 0 20px, rgba(255,255,255,.012) 20px 21px);
    pointer-events: none;
}
.page-hero__inner { position: relative; }
.page-hero__crumb {
    font-family: var(--ff-mono);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .14em;
    color: var(--c-text-on-dark-soft);
    margin-bottom: 28px;
}
.page-hero__crumb a:hover { color: var(--c-accent); }
.page-hero__crumb span[aria-current] { color: var(--c-text-on-dark); }
.page-hero h1 { max-width: 16ch; }
.page-hero__lead {
    margin-top: 28px;
    max-width: 56ch;
    color: var(--c-text-on-dark-soft);
    font-size: clamp(16px, 1.4vw, 19px);
    line-height: 1.6;
}

/* ---------- Cards ---------- */
.card {
    background: #fff;
    border: 1px solid var(--c-line-light);
    transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 24px 48px -24px rgba(0,0,0,.18);
    border-color: var(--c-text);
}

/* ---------- Forms ---------- */
.field {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.field label {
    font-family: var(--ff-mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .14em;
    color: var(--c-text-soft);
}
.field input,
.field textarea,
.field select {
    width: 100%;
    padding: 14px 0;
    background: transparent;
    border: 0;
    border-bottom: 1px solid var(--c-line-light);
    transition: border-color var(--dur) var(--ease);
    font-size: 16px;
}
.field--dark input,
.field--dark textarea,
.field--dark select {
    border-bottom-color: rgba(255,255,255,.18);
    color: var(--c-text-on-dark);
}
.field input:focus,
.field textarea:focus,
.field select:focus {
    outline: 0;
    border-bottom-color: var(--c-accent);
}
.field textarea { min-height: 140px; resize: vertical; }
.field--dark label { color: var(--c-text-on-dark-soft); }

/* ---------- Utility ---------- */
.text-accent { color: var(--c-accent); }
.text-mono { font-family: var(--ff-mono); }
.text-center { text-align: center; }
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: 1fr; }
@media (min-width: 720px) {
    .grid-2 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
    .grid-3 { grid-template-columns: repeat(3, 1fr); }
    .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* ---------- Marquee ---------- */
.marquee {
    overflow: hidden;
    border-block: 1px solid var(--c-line-light);
    background: var(--c-bg);
    color: var(--c-text-on-dark);
    padding: 22px 0;
}
.marquee__track {
    display: flex;
    gap: 60px;
    width: max-content;
    animation: marquee 38s linear infinite;
    font-family: var(--ff-display);
    font-size: clamp(28px, 4vw, 56px);
    text-transform: uppercase;
    color: rgba(255,255,255,.7);
    align-items: center;
}
.marquee__track .dot {
    width: 10px; height: 10px;
    border-radius: 50%;
    background: var(--c-accent);
    flex-shrink: 0;
}
@keyframes marquee {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

/* ---------- Section header ---------- */
.section-head {
    display: grid;
    gap: 16px;
    grid-template-columns: 1fr;
    margin-bottom: 56px;
    align-items: end;
}
@media (min-width: 768px) {
    .section-head {
        grid-template-columns: 1.2fr 1fr;
        gap: 48px;
    }
}
.section-head__title h2 { max-width: 14ch; }
.section-head__lead p { color: var(--c-text-soft); max-width: 50ch; }
.section--dark .section-head__lead p { color: var(--c-text-on-dark-soft); }