/* ============================================================
   AYOLI CONSTRUCTION — style.css
   Charte v2.4 — 2026 — Moderne & Épuré
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600;700;800&display=swap');

/* ── Variables ── */
:root {
  --red:        #921F2E;
  --red-dark:   #6E1522;
  --red-light:  #C04050;
  --red-pale:   #F9ECED;
  --anthracite: #3A3A3A;
  --gray:       #6B6B6B;
  --gray-light: #9E9E9E;
  --gray-line:  #DEDEDE;
  --gray-bg:    #F5F5F5;
  --white:      #FFFFFF;

  --font: 'Montserrat', Arial, sans-serif;
  --nav-h: 72px;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --trans: all 0.3s var(--ease);
  --shadow: 0 2px 20px rgba(58,58,58,0.08);
  --shadow-lg: 0 8px 40px rgba(58,58,58,0.14);
  --radius: 2px;

  /* Losange pattern SVG */
  --pattern: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60'%3E%3Cpolygon points='30,4 56,30 30,56 4,30' fill='none' stroke='%23921F2E' stroke-width='1'/%3E%3C/svg%3E");
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  font-weight: 400;
  color: var(--anthracite);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ── Typography ── */
h1 { font-size: clamp(2.4rem,5vw,4rem); font-weight: 800; line-height: 1.05; letter-spacing: -0.02em; color: var(--anthracite); }
h2 { font-size: clamp(1.6rem,3vw,2.4rem); font-weight: 700; line-height: 1.1; letter-spacing: -0.01em; color: var(--anthracite); }
h3 { font-size: clamp(1rem,1.8vw,1.25rem); font-weight: 600; line-height: 1.2; color: var(--anthracite); }
h4 { font-size: 0.95rem; font-weight: 600; color: var(--anthracite); }
p  { font-size: 0.93rem; line-height: 1.8; color: var(--gray); font-weight: 400; }

.label {
  font-size: 0.65rem; font-weight: 700;
  letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--red); display: block;
}
.red-sep {
  display: block; width: 32px; height: 3px;
  background: var(--red); margin: 0.75rem 0 1.5rem;
}
.red-sep.center { margin-left: auto; margin-right: auto; }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: 0.6rem;
  padding: 0.85rem 2rem;
  font-family: var(--font); font-size: 0.7rem;
  font-weight: 700; letter-spacing: 0.2em; text-transform: uppercase;
  border: none; cursor: pointer; transition: var(--trans);
  border-radius: var(--radius);
}
.btn-primary { background: var(--red); color: var(--white); }
.btn-primary:hover { background: var(--red-dark); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(146,31,46,0.3); }
.btn-outline { background: transparent; color: var(--white); border: 1px solid rgba(255,255,255,0.4); }
.btn-outline:hover { background: rgba(255,255,255,0.1); border-color: var(--white); }
.btn-outline-dark { background: transparent; color: var(--anthracite); border: 1px solid var(--anthracite); }
.btn-outline-dark:hover { background: var(--anthracite); color: var(--white); }
.btn-ghost { background: transparent; color: var(--red); border: 1px solid var(--red); }
.btn-ghost:hover { background: var(--red); color: var(--white); }

/* ── Nav ── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 6vw;
  background: var(--white);
  border-bottom: 1px solid var(--gray-line);
  transition: var(--trans);
}
.nav.scrolled { box-shadow: var(--shadow); }

.nav-brand { display: flex; align-items: center; gap: 1rem; }
.nav-logo-img { height: 38px; width: auto; }
.nav-logo-text {
  font-size: 0.95rem; font-weight: 800;
  letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--anthracite); line-height: 1.15;
}
.nav-logo-text span { color: var(--red); display: block; font-size: 0.6rem; font-weight: 600; letter-spacing: 0.22em; }
.nav-divider { width: 1px; height: 28px; background: var(--gray-line); }
.nav-group-link {
  font-size: 0.62rem; font-weight: 600; letter-spacing: 0.15em;
  text-transform: uppercase; color: var(--gray-light); transition: var(--trans);
}
.nav-group-link:hover { color: var(--red); }

.nav-links { display: flex; align-items: center; gap: 2.5rem; }
.nav-links a {
  font-size: 0.68rem; font-weight: 600; letter-spacing: 0.15em;
  text-transform: uppercase; color: var(--gray);
  transition: var(--trans); position: relative; padding-bottom: 3px;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: 0; left: 0;
  width: 0; height: 2px; background: var(--red); transition: var(--trans);
}
.nav-links a:hover, .nav-links a.active { color: var(--red); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }

.nav-right { display: flex; align-items: center; gap: 1.5rem; }
.lang-toggle { display: flex; border: 1px solid var(--gray-line); border-radius: var(--radius); overflow: hidden; }
.lang-btn { background: transparent; border: none; color: var(--gray-light); padding: 4px 10px; font-family: var(--font); font-size: 0.65rem; font-weight: 700; letter-spacing: 0.1em; cursor: pointer; transition: var(--trans); }
.lang-btn.active { background: var(--red); color: var(--white); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--anthracite); transition: var(--trans); }

/* ── Hero ── */
.hero {
  min-height: 100vh;
  background: var(--anthracite);
  display: flex; align-items: center;
  padding-top: var(--nav-h);
  position: relative; overflow: hidden;
}
.hero-pattern {
  position: absolute; inset: 0;
  background-image: var(--pattern);
  background-size: 60px 60px;
  opacity: 0.06;
}
.hero-img {
  position: absolute; inset: 0;
  background: url('../images/hero-construction.jpg') center/cover no-repeat;
  opacity: 0.2;
}
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(105deg, rgba(58,58,58,0.96) 50%, rgba(146,31,46,0.15) 100%);
}
.hero-content {
  position: relative; z-index: 2;
  max-width: 1200px; margin: 0 auto; padding: 5rem 6vw;
  display: grid; grid-template-columns: 58% 42%; align-items: center; gap: 4rem;
}
.hero-tag {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-size: 0.62rem; font-weight: 700; letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--white); opacity: 0.55; margin-bottom: 2rem;
}
.hero-tag::before { content: ''; display: block; width: 24px; height: 1px; background: var(--red); }
.hero-h1 { color: var(--white); margin-bottom: 1rem; }
.hero-h1 em { font-style: normal; color: var(--red); display: block; }
.hero-tagline {
  font-size: 0.8rem; font-weight: 700; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--red); margin-bottom: 1.5rem;
}
.hero-desc { color: rgba(255,255,255,0.6); font-size: 0.9rem; line-height: 1.85; margin-bottom: 2.5rem; max-width: 500px; }
.hero-cta { display: flex; gap: 1rem; flex-wrap: wrap; align-items: center; }

.hero-right { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.06); }
.hero-stat {
  padding: 2.5rem 1.75rem; background: rgba(255,255,255,0.03);
  transition: var(--trans);
}
.hero-stat:hover { background: rgba(146,31,46,0.12); }
.hero-stat-icon { font-size: 1.5rem; margin-bottom: 1rem; }
.hero-stat-label { font-size: 0.62rem; font-weight: 700; letter-spacing: 0.2em; text-transform: uppercase; color: rgba(255,255,255,0.45); }
.hero-stat-val { font-size: 0.88rem; font-weight: 600; color: var(--white); margin-top: 0.25rem; }

/* ── Page Header ── */
.page-hdr {
  background: var(--anthracite);
  padding: calc(var(--nav-h) + 5rem) 6vw 5rem;
  position: relative; overflow: hidden;
}
.page-hdr-pattern {
  position: absolute; inset: 0;
  background-image: var(--pattern);
  background-size: 60px 60px;
  opacity: 0.05;
}
.page-hdr-inner { position: relative; z-index: 1; max-width: 1200px; margin: 0 auto; }
.page-hdr h1 { color: var(--white); }
.page-hdr-desc { color: rgba(255,255,255,0.55); max-width: 540px; margin-top: 1.25rem; font-size: 0.92rem; }

/* ── Sections ── */
.section { padding: 7rem 6vw; }
.section .inner { max-width: 1200px; margin: 0 auto; }
.section-head { margin-bottom: 4rem; }
.section-head.center { text-align: center; }
.section-head.center .red-sep { margin: 0.75rem auto 1.5rem; }

/* ── Services Grid ── */
.services-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; background: var(--gray-line); border: 1px solid var(--gray-line); }
.service-card {
  background: var(--white);
  padding: 2.75rem 2.25rem;
  transition: var(--trans);
  position: relative; overflow: hidden;
}
.service-card::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0;
  height: 2px; background: var(--red);
  transform: scaleX(0); transform-origin: left; transition: var(--trans);
}
.service-card:hover { background: var(--gray-bg); }
.service-card:hover::after { transform: scaleX(1); }
.service-num {
  font-size: 0.6rem; font-weight: 800; letter-spacing: 0.2em;
  color: var(--gray-line); margin-bottom: 1.75rem; display: block;
}
.service-icon { font-size: 2rem; margin-bottom: 1.25rem; display: block; }
.service-card h3 { margin-bottom: 0.75rem; font-size: 1rem; }
.service-card p { font-size: 0.86rem; }

/* ── Why Us ── */
.why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--gray-line); border: 1px solid var(--gray-line); }
.why-item {
  padding: 3rem 2.75rem; background: var(--white);
  display: flex; gap: 1.5rem; align-items: flex-start;
  transition: var(--trans);
}
.why-item:hover { background: var(--gray-bg); }
.why-num {
  font-size: 2.5rem; font-weight: 800; color: var(--gray-line);
  line-height: 1; flex-shrink: 0; transition: var(--trans);
}
.why-item:hover .why-num { color: var(--red); opacity: 0.3; }
.why-text h4 { margin-bottom: 0.5rem; }
.why-text p { font-size: 0.86rem; }

/* ── About Page ── */
.about-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 6rem; align-items: center; }
.about-img-wrap { position: relative; }
.about-img-wrap img { width: 100%; height: 480px; object-fit: cover; }
.about-img-placeholder { width: 100%; height: 480px; background: var(--gray-bg); display: flex; align-items: center; justify-content: center; font-size: 5rem; border: 1px solid var(--gray-line); }
.about-img-accent { position: absolute; bottom: -16px; right: -16px; width: 120px; height: 120px; border: 2px solid var(--red); opacity: 0.3; pointer-events: none; }
.about-img-tag { position: absolute; top: 2rem; left: -1.5rem; background: var(--red); color: var(--white); padding: 1rem 1.5rem; font-size: 0.65rem; font-weight: 700; letter-spacing: 0.2em; text-transform: uppercase; }

.values-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 1px; background: var(--gray-line); border: 1px solid var(--gray-line); margin-top: 4rem; }
.value-card { background: var(--white); padding: 2.5rem 2rem; transition: var(--trans); }
.value-card:hover { background: var(--anthracite); }
.value-card:hover h4 { color: var(--white); }
.value-card:hover p { color: rgba(255,255,255,0.55); }
.value-card:hover .value-icon { filter: grayscale(0); }
.value-icon { font-size: 1.75rem; margin-bottom: 1.25rem; display: block; }
.value-card h4 { margin-bottom: 0.5rem; }
.value-card p { font-size: 0.83rem; }

.expertise-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.5rem; }
.expertise-item {
  padding: 1.75rem; border-left: 2px solid var(--red);
  background: var(--gray-bg);
  transition: var(--trans);
}
.expertise-item:hover { background: var(--red-pale); border-color: var(--red-dark); }
.expertise-item h4 { font-size: 0.88rem; margin-bottom: 0.4rem; }
.expertise-item p { font-size: 0.82rem; }

/* ── Projects ── */
.projects-soon {
  background: var(--gray-bg); border: 1px solid var(--gray-line);
  padding: 7rem 3rem; text-align: center; position: relative; overflow: hidden;
}
.projects-soon-pattern {
  position: absolute; inset: 0;
  background-image: var(--pattern);
  background-size: 60px 60px;
  opacity: 0.06;
}
.projects-soon-inner { position: relative; z-index: 1; }
.projects-soon-icon { font-size: 3.5rem; opacity: 0.2; margin-bottom: 2rem; display: block; }

/* ── Contact ── */
.contact-layout { display: grid; grid-template-columns: 1fr 1.7fr; gap: 6rem; align-items: start; }
.contact-item { display: flex; gap: 1.25rem; align-items: flex-start; margin-bottom: 2rem; padding-bottom: 2rem; border-bottom: 1px solid var(--gray-line); }
.contact-item:last-child { border-bottom: none; }
.contact-icon { width: 44px; height: 44px; min-width: 44px; background: var(--anthracite); display: flex; align-items: center; justify-content: center; }
.contact-icon svg { width: 18px; height: 18px; fill: var(--red); }
.contact-label { font-size: 0.62rem; font-weight: 700; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gray-light); margin-bottom: 0.3rem; display: block; }
.contact-val { font-size: 0.92rem; font-weight: 500; color: var(--anthracite); }

.form-group { margin-bottom: 1.5rem; }
.form-label { display: block; font-size: 0.62rem; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; color: var(--anthracite); margin-bottom: 0.5rem; }
.form-input, .form-select, .form-textarea { width: 100%; padding: 0.875rem 1rem; font-family: var(--font); font-size: 0.88rem; color: var(--anthracite); background: var(--white); border: 1px solid var(--gray-line); border-radius: var(--radius); outline: none; transition: var(--trans); -webkit-appearance: none; }
.form-input:focus, .form-select:focus, .form-textarea:focus { border-color: var(--red); box-shadow: 0 0 0 3px rgba(146,31,46,0.08); }
.form-textarea { min-height: 140px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }

/* ── CTA Band ── */
.cta-band {
  background: var(--red); padding: 5rem 6vw;
  position: relative; overflow: hidden;
}
.cta-band-pattern { position: absolute; inset: 0; background-image: var(--pattern); background-size: 60px 60px; opacity: 0.06; }
.cta-band-inner {
  position: relative; z-index: 1;
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  gap: 2rem; flex-wrap: wrap;
}
.cta-band h2 { color: var(--white); }
.cta-band p { color: rgba(255,255,255,0.7); margin-top: 0.5rem; }
.btn-white { background: var(--white); color: var(--red); }
.btn-white:hover { background: var(--gray-bg); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,0,0,0.15); }

/* ── Footer ── */
.footer { background: var(--anthracite); padding: 5rem 6vw 2.5rem; }
.footer-inner { max-width: 1200px; margin: 0 auto; }
.footer-top { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 3rem; padding-bottom: 3.5rem; border-bottom: 1px solid rgba(255,255,255,0.08); margin-bottom: 2.5rem; }
.footer-brand-name { font-size: 1rem; font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase; color: var(--white); margin-bottom: 1rem; }
.footer-brand-name span { color: var(--red); }
.footer-brand p { font-size: 0.83rem; color: rgba(255,255,255,0.4); line-height: 1.8; }
.footer-tagline { font-size: 0.7rem; font-weight: 700; letter-spacing: 0.2em; text-transform: uppercase; color: var(--red); margin-top: 1.25rem; display: block; }
.footer-col h4 { font-size: 0.62rem; font-weight: 700; letter-spacing: 0.22em; text-transform: uppercase; color: rgba(255,255,255,0.3); margin-bottom: 1.5rem; }
.footer-col ul li { margin-bottom: 0.65rem; }
.footer-col ul li a { font-size: 0.83rem; color: rgba(255,255,255,0.5); transition: var(--trans); }
.footer-col ul li a:hover { color: var(--white); padding-left: 6px; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; }
.footer-bottom p { font-size: 0.75rem; color: rgba(255,255,255,0.25); }

/* ── Scroll Reveal ── */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-d1 { transition-delay: 0.1s; }
.reveal-d2 { transition-delay: 0.2s; }
.reveal-d3 { transition-delay: 0.3s; }

/* ── Responsive ── */
@media (max-width: 1100px) {
  .hero-content { grid-template-columns: 1fr; }
  .hero-right { display: none; }
  .about-intro { grid-template-columns: 1fr; }
  .about-img-wrap { display: none; }
  .values-grid { grid-template-columns: 1fr 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 2.5rem; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-links.open { display: flex; flex-direction: column; position: fixed; top: var(--nav-h); left: 0; right: 0; background: var(--white); padding: 2rem 6vw; gap: 1.5rem; border-top: 1px solid var(--gray-line); box-shadow: var(--shadow-lg); }
  .nav-toggle { display: flex; }
  .services-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; gap: 3rem; }
  .form-row { grid-template-columns: 1fr; }
  .expertise-grid { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .cta-band-inner { flex-direction: column; text-align: center; }
}