/* ============================================================
   HÉMÉRA Aerospace — Feuille de style commune (refonte multi-pages)
   Charte identique au site actuel (couleurs, typographie, composants).
   Partagée par toutes les pages : modifier ici = appliqué partout.
   ============================================================ */

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --black: #000000;
    --dark: #0a0a0a;
    --dark-surface: #111111;
    --dark-card: #161616;
    --green: #8EBC6B;
    --green-bright: #92D050;
    --green-light: rgba(142, 188, 107, 0.1);
    --white: #FFFFFF;
    --gray-light: #CCCCCC;
    --gray: #999999;
    --gray-dark: #333333;
    --serif: 'Playfair Display', Georgia, serif;
    --sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

html { scroll-behavior: smooth; }
body {
    font-family: var(--sans);
    background-color: var(--dark);
    color: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { font-family: var(--serif); font-weight: 500; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.5rem, 5vw, 4rem); line-height: 1.1; }
h2 { font-size: clamp(2rem, 3.5vw, 3rem); line-height: 1.15; margin-bottom: 1.5rem; }
h3 { font-size: clamp(1.3rem, 2vw, 1.6rem); line-height: 1.3; }
p { font-size: 1.05rem; color: var(--gray-light); line-height: 1.7; }
a { color: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }
section { padding: 7rem 0; }

/* ===== NAV ===== */
nav {
    position: fixed; top: 0; width: 100%; z-index: 1000;
    padding: 1rem 0; transition: all 0.4s ease; background: transparent;
}
nav.scrolled {
    background: rgba(10,10,10,0.95); backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(142,188,107,0.1); padding: 0.7rem 0;
}
/* Sur les pages intérieures, la nav est posée sur fond sombre dès le chargement */
nav.nav-solid {
    background: rgba(10,10,10,0.95); backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(142,188,107,0.1);
}
nav .container { display: flex; justify-content: space-between; align-items: center; }
.nav-logo { display: flex; flex-direction: column; text-decoration: none; gap: 0; text-align: center; }
.nav-logo-name {
    font-family: var(--sans); font-weight: 700; font-size: 1.15rem;
    letter-spacing: 0.35em; text-transform: uppercase; line-height: 1.2;
    background: linear-gradient(180deg, #B8E08A 0%, #92D050 48%, #5E9A34 100%);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent; color: #92D050;
}
.nav-logo-sub {
    font-family: var(--sans); font-weight: 400; font-size: 0.65rem;
    letter-spacing: 0.25em; text-transform: uppercase; color: var(--white); line-height: 1.2;
}
.nav-links { display: flex; align-items: center; gap: 2.2rem; list-style: none; }
.nav-links li { text-align: center; }
.nav-links a {
    text-decoration: none; color: var(--white); font-size: 0.82rem;
    font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; transition: color 0.3s;
}
.nav-links a:hover { color: var(--green); }
.nav-links a.active { color: var(--green); }
.lang-toggle {
    background: transparent; border: 1px solid var(--gray-dark); color: var(--gray-light);
    padding: 0.35rem 0.8rem; font-size: 0.78rem; font-weight: 500; letter-spacing: 0.1em;
    cursor: pointer; transition: all 0.3s; border-radius: 3px; font-family: var(--sans);
}
.lang-toggle:hover { border-color: var(--green); color: var(--green); }
.menu-toggle { display: none; background: none; border: none; cursor: pointer; padding: 0.5rem; }
.menu-toggle span { display: block; width: 24px; height: 2px; background: var(--white); margin: 5px 0; transition: all 0.3s; }

/* ===== HERO (accueil) ===== */
.hero {
    min-height: 100vh; display: flex; align-items: center;
    position: relative; overflow: hidden; padding-top: 5rem;
}
.hero-bg {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background: url('../images/hero-hangar.jpg') center/cover no-repeat;
    transform: scale(1); animation: slowzoom 30s ease-in-out infinite alternate;
}
.hero-overlay {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(135deg, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.6) 50%, rgba(0,0,0,0.75) 100%);
}
.hero .container { position: relative; z-index: 1; }
.hero-content { max-width: 820px; text-align: center; margin: 0 auto; }
.hero-label {
    display: inline-block; font-size: 0.78rem; font-weight: 500;
    letter-spacing: 0.2em; text-transform: uppercase; color: var(--green);
    margin-bottom: 2rem; padding-bottom: 0.5rem; border-bottom: 1px solid var(--green);
}
.hero h1 { margin-bottom: 1.8rem; }
.hero h1 .accent { color: var(--green); }
.hero-desc {
    font-size: 1.15rem; color: var(--gray-light); max-width: 580px;
    margin: 0 auto 3rem; line-height: 1.8;
}
.hero-cta-group { display: flex; gap: 1.5rem; align-items: center; flex-wrap: wrap; justify-content: center; }

/* ===== PAGE HERO (pages intérieures) ===== */
.page-hero {
    position: relative; padding: 11rem 0 5rem; background: var(--dark-surface);
    border-bottom: 1px solid var(--gray-dark); overflow: hidden;
}
.page-hero::after {
    content: ''; position: absolute; bottom: -1px; left: 0; right: 0; height: 2px;
    background: linear-gradient(90deg, transparent, var(--green), transparent);
}
.page-hero .container { position: relative; z-index: 1; max-width: 860px; text-align: center; margin: 0 auto; }
.page-hero .section-label { display: inline-block; margin-bottom: 1.2rem; }
.page-hero h1 { font-size: clamp(2.2rem, 4.5vw, 3.4rem); margin-bottom: 1.2rem; }
.page-hero h1 .accent { color: var(--green); }
.page-hero p { font-size: 1.15rem; color: var(--gray-light); max-width: 680px; line-height: 1.8; margin: 0 auto; }

/* ===== BUTTONS ===== */
.btn {
    display: inline-block; padding: 1rem 2.5rem; font-family: var(--sans);
    font-size: 0.85rem; font-weight: 600; letter-spacing: 0.1em;
    text-transform: uppercase; text-decoration: none; border-radius: 3px;
    transition: all 0.3s ease; cursor: pointer;
}
.btn-primary { background: var(--green); color: var(--black); border: 2px solid var(--green); }
.btn-primary:hover { background: transparent; color: var(--green); }
.btn-outline { background: transparent; color: var(--white); border: 1px solid var(--gray-dark); }
.btn-outline:hover { border-color: var(--green); color: var(--green); }

/* ===== STATS ===== */
.stats-bar { border-top: 1px solid var(--gray-dark); border-bottom: 1px solid var(--gray-dark); padding: 3.5rem 0; background: var(--dark-surface); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; text-align: center; }
.stat-item h3 { font-family: var(--serif); font-size: clamp(2rem, 3vw, 2.8rem); color: var(--green); margin-bottom: 0.5rem; }
.stat-item p { font-size: 0.85rem; color: var(--gray); text-transform: uppercase; letter-spacing: 0.1em; }

/* ===== SECTION HEADERS ===== */
.section-header { text-align: center; max-width: 760px; margin: 0 auto 4rem; }
.section-label {
    display: inline-block; font-size: 0.75rem; font-weight: 600;
    letter-spacing: 0.2em; text-transform: uppercase; color: var(--green); margin-bottom: 1.2rem;
}
.section-header p { font-size: 1.1rem; color: var(--gray); }

/* ===== SERVICES / CARDS (réutilisé pour les pôles) ===== */
.services { background: var(--dark); }
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.service-card {
    background: var(--dark-card); border: 1px solid rgba(255,255,255,0.05);
    padding: 2.5rem 2rem; border-radius: 4px; transition: all 0.4s ease; position: relative;
}
.service-card::before {
    content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 3px;
    background: var(--green); transform: scaleX(0); transform-origin: left; transition: transform 0.4s ease;
}
.service-card:hover::before { transform: scaleX(1); }
.service-card:hover { border-color: rgba(142,188,107,0.15); transform: translateY(-4px); }
.service-icon {
    width: 48px; height: 48px; border: 1px solid var(--green); border-radius: 4px;
    display: flex; align-items: center; justify-content: center; margin-bottom: 1.5rem;
    color: var(--green); font-size: 1.3rem;
}
.service-card h3 { font-size: 1.25rem; color: var(--white); margin-bottom: 1rem; }
.service-card p { font-size: 0.95rem; color: var(--gray); line-height: 1.7; }

/* ===== MODÈLE PROD / MRO (page Services) ===== */
.model-block { padding: 6.5rem 0; }
.model-block.prod { background: var(--dark); }
.model-block.mro { background: var(--dark-surface); border-top: 1px solid var(--gray-dark); }
.model-head {
    position: relative; overflow: hidden;
    margin-bottom: 3.5rem; padding: 3.2rem 2.5rem; border-radius: 6px;
    border: 1px solid rgba(255,255,255,0.06);
}
.model-head::before {
    content: ''; position: absolute; inset: 0; z-index: 0;
    background-position: center; background-size: cover; background-repeat: no-repeat;
    transform: scale(1); animation: slowzoom 26s ease-in-out infinite alternate;
}
.model-head > * { position: relative; z-index: 1; }
.model-head .model-tag, .model-head h2, .model-head > p, .model-head .model-meta { max-width: 660px; }
.model-block.prod .model-head::before {
    background-image: linear-gradient(90deg, rgba(8,8,8,0.94) 0%, rgba(8,8,8,0.74) 55%, rgba(8,8,8,0.50) 100%), url('../images/prod-bandeau.jpg');
}
.model-block.mro .model-head::before {
    background-image: linear-gradient(90deg, rgba(8,8,8,0.94) 0%, rgba(8,8,8,0.74) 55%, rgba(8,8,8,0.50) 100%), url('../images/mro-bandeau.jpg');
}
.model-head .model-tag {
    display: inline-block; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.2em;
    text-transform: uppercase; color: var(--green); margin-bottom: 1rem;
}
.model-head h2 { margin-bottom: 1.2rem; }
.model-head p { font-size: 1.08rem; color: var(--gray-light); }
.model-meta {
    display: flex; flex-wrap: wrap; gap: 1.5rem 2.5rem; margin-top: 1.8rem;
    padding-top: 1.6rem; border-top: 1px solid var(--gray-dark);
}
.model-meta div { font-size: 0.9rem; color: var(--gray); }
.model-meta strong { color: var(--green-bright); font-family: var(--serif); font-weight: 600; }

/* carte de pôle = service-card + liste de métiers */
.pole-roles { list-style: none; margin-top: 1.1rem; padding-top: 1rem; border-top: 1px solid var(--gray-dark); }
.pole-roles li {
    font-size: 0.85rem; color: var(--gray-light); padding-left: 1.1rem; position: relative;
    margin-bottom: 0.45rem; line-height: 1.5;
}
.pole-roles li::before { content: '▸'; position: absolute; left: 0; color: var(--green); }

/* ===== BANDEAU EXPERTISE TECHNIQUE ===== */
.expertise { background: var(--dark); }
.expertise-card {
    background: var(--dark-card); border: 1px solid rgba(142,188,107,0.2);
    border-radius: 4px; padding: 3.5rem; position: relative; text-align: center; max-width: 920px; margin: 0 auto;
}
.expertise-card::before {
    content: ''; position: absolute; top: -1px; left: 2rem; right: 2rem; height: 2px;
    background: linear-gradient(90deg, transparent, var(--green), transparent);
}
.expertise-card h2 { margin-bottom: 1.2rem; }
.expertise-card p { color: var(--gray-light); max-width: 680px; margin: 0 auto 1rem; }
.expertise-tags { display: flex; flex-wrap: wrap; gap: 0.7rem; justify-content: center; margin-top: 2rem; }
.expertise-tags span {
    font-size: 0.78rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--gray-light);
    border: 1px solid var(--gray-dark); border-radius: 3px; padding: 0.45rem 0.9rem;
}

/* ===== ADVANTAGES (accueil) ===== */
.advantages { background: var(--dark-surface); }
.advantages-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: center; }
.advantages-text > p { margin-bottom: 3rem; color: var(--gray); }
.advantage-item { display: flex; gap: 1.5rem; margin-bottom: 2.5rem; }
.advantage-number {
    flex-shrink: 0; width: 44px; height: 44px; border: 1px solid var(--green);
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
    font-family: var(--serif); font-size: 1.1rem; color: var(--green); margin-top: 0.2rem;
}
.advantage-content h3 { font-size: 1.15rem; color: var(--white); margin-bottom: 0.5rem; }
.advantage-content p { font-size: 0.95rem; color: var(--gray); }
.highlight-card {
    background: var(--dark-card); border: 1px solid rgba(142,188,107,0.2);
    padding: 3rem; border-radius: 4px; position: relative; text-align: center;
}
.highlight-card::before {
    content: ''; position: absolute; top: -1px; left: 2rem; right: 2rem; height: 2px;
    background: linear-gradient(90deg, transparent, var(--green), transparent);
}
.highlight-stat { font-family: var(--serif); font-size: 3.5rem; color: var(--green); line-height: 1; margin-bottom: 0.8rem; }
.highlight-card h3 { font-size: 1.4rem; color: var(--white); margin-bottom: 1rem; }
.highlight-card p { color: var(--gray); font-size: 0.95rem; margin-bottom: 1.5rem; }
.highlight-detail { padding-top: 1.5rem; border-top: 1px solid var(--gray-dark); }
.highlight-detail p { font-size: 0.85rem; color: var(--gray); font-style: italic; }

/* ===== CTA BAND ===== */
.cta-band { background: var(--dark-surface); border-top: 1px solid var(--gray-dark); text-align: center; }
.cta-band h2 { margin-bottom: 1.2rem; }
.cta-band p { color: var(--gray); max-width: 560px; margin: 0 auto 2.5rem; }

/* ===== PROCESS (timeline) ===== */
.process { background: var(--dark); }
.process-timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 4rem; position: relative; }
.process-timeline::before {
    content: ''; position: absolute; top: 35px; left: 10%; right: 10%; height: 1px;
    background: linear-gradient(90deg, var(--gray-dark), var(--green), var(--gray-dark));
}
.process-step { text-align: center; padding: 0 1.2rem; position: relative; }
.step-marker {
    width: 70px; height: 70px; border-radius: 50%; border: 2px solid var(--green);
    background: var(--dark); display: flex; align-items: center; justify-content: center;
    margin: 0 auto 1.5rem; position: relative; z-index: 1;
}
.step-marker span { font-family: var(--sans); font-weight: 600; font-size: 0.75rem; color: var(--green); letter-spacing: 0.05em; }
.process-step h3 { font-size: 1.05rem; color: var(--white); margin-bottom: 0.8rem; }
.process-step p { font-size: 0.88rem; color: var(--gray); line-height: 1.6; }

/* ===== PROFILES ===== */
.profiles-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-top: 1rem; }
.profile-tag {
    background: var(--dark-card); border: 1px solid rgba(255,255,255,0.05);
    padding: 1.8rem; border-radius: 4px; text-align: center; transition: all 0.3s;
}
.profile-tag:hover { border-color: rgba(142,188,107,0.2); transform: translateY(-3px); }
.profile-tag h3 { font-size: 1.05rem; color: var(--white); margin-bottom: 0.5rem; font-family: var(--sans); font-weight: 600; }
.profile-tag p { font-size: 0.85rem; color: var(--gray); }

/* ===== ABOUT ===== */
.about-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: start; }
.about-text p { margin-bottom: 1.5rem; color: var(--gray-light); }
.about-details { display: flex; flex-direction: column; gap: 2rem; }
.about-detail-card {
    background: var(--dark-card); border: 1px solid rgba(255,255,255,0.05);
    padding: 2rem; border-radius: 4px;
}
.about-detail-card h3 {
    font-size: 1rem; color: var(--green); margin-bottom: 0.6rem;
    font-family: var(--sans); font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em;
}
.about-detail-card p { color: var(--gray-light); font-size: 0.95rem; }

/* ===== CONTACT (forms) ===== */
.contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; }
.contact-info > p { margin-bottom: 2.5rem; color: var(--gray); }
.contact-detail { margin-bottom: 1.8rem; }
.contact-detail h4 {
    font-family: var(--sans); font-size: 0.75rem; font-weight: 600;
    letter-spacing: 0.15em; text-transform: uppercase; color: var(--green); margin-bottom: 0.4rem;
}
.contact-detail p { color: var(--gray-light); font-size: 1rem; }
.contact-detail a { color: var(--gray-light); text-decoration: none; transition: color 0.3s; }
.contact-detail a:hover { color: var(--green); }
.contact-tabs { display: flex; gap: 0; margin-bottom: 2rem; }
.contact-tab {
    flex: 1; padding: 1rem 1.5rem; background: var(--dark-card); border: 1px solid var(--gray-dark);
    color: var(--gray); font-family: var(--sans); font-size: 0.82rem; font-weight: 600;
    letter-spacing: 0.08em; text-transform: uppercase; cursor: pointer; text-align: center; transition: all 0.3s;
}
.contact-tab:first-child { border-radius: 4px 0 0 4px; }
.contact-tab:last-child { border-radius: 0 4px 4px 0; }
.contact-tab.active { background: var(--green); color: var(--black); border-color: var(--green); }
.contact-tab:hover:not(.active) { border-color: var(--green); color: var(--green); }
.contact-form { display: flex; flex-direction: column; gap: 1.5rem; }
.contact-form.hidden { display: none; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.form-group { display: flex; flex-direction: column; }
.form-group label {
    font-size: 0.8rem; font-weight: 500; letter-spacing: 0.08em;
    text-transform: uppercase; color: var(--gray); margin-bottom: 0.5rem;
}
.form-group input, .form-group textarea, .form-group select {
    background: var(--dark-card); border: 1px solid var(--gray-dark); color: var(--white);
    padding: 0.9rem 1rem; font-family: var(--sans); font-size: 0.95rem;
    border-radius: 3px; transition: border-color 0.3s; outline: none;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { border-color: var(--green); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-group select option { background: var(--dark-card); }

/* ===== RESPONSIVE (composants pages intérieures) ===== */
@media (max-width: 1024px) {
    .process-timeline { grid-template-columns: repeat(2, 1fr); gap: 3rem; }
    .process-timeline::before { display: none; }
    .profiles-grid { grid-template-columns: repeat(2, 1fr); }
    .about-layout, .contact-layout { grid-template-columns: 1fr; gap: 3rem; }
}
@media (max-width: 768px) {
    .process-timeline, .profiles-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
}

/* ===== FOOTER ===== */
footer { background: var(--black); padding: 3rem 0; border-top: 1px solid rgba(255,255,255,0.05); }
.footer-content { display: flex; justify-content: space-between; align-items: center; }
.footer-left p { font-size: 0.85rem; color: var(--gray); }
.footer-left a { color: var(--gray); text-decoration: none; font-size: 0.8rem; transition: color 0.3s; }
.footer-left a:hover { color: var(--green); }
.footer-tagline { font-family: var(--serif); font-style: italic; font-size: 1rem; color: var(--green); }

/* ===== ANIMATIONS ===== */
.fade-in { opacity: 0; transform: translateY(30px); transition: opacity 0.8s ease, transform 0.8s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .advantages-layout { grid-template-columns: 1fr; gap: 3rem; }
}
@media (max-width: 768px) {
    section { padding: 5rem 0; }
    .page-hero { padding: 9rem 0 4rem; }
    .nav-links { display: none; }
    .nav-links.active {
        display: flex; flex-direction: column; position: absolute; top: 100%; left: 0;
        width: 100%; background: rgba(10,10,10,0.98); padding: 2rem; gap: 1.5rem;
        border-bottom: 1px solid var(--gray-dark);
    }
    .menu-toggle { display: block; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 2rem; }
    .services-grid { grid-template-columns: 1fr; }
    .hero-cta-group { flex-direction: column; align-items: flex-start; }
    .footer-content { flex-direction: column; gap: 1rem; text-align: center; }
    .model-meta { gap: 1rem; }
}


/* ===== ANIMATIONS premium ===== */
@keyframes slowzoom { from { transform: scale(1); } to { transform: scale(1.08); } }
@keyframes fadeup { from { opacity: 0; transform: translateY(22px); } to { opacity: 1; transform: translateY(0); } }
.page-hero .section-label, .page-hero h1, .page-hero p { animation: fadeup 0.8s ease both; }
.page-hero h1 { animation-delay: 0.12s; }
.page-hero p { animation-delay: 0.24s; }
@media (prefers-reduced-motion: reduce) {
  .hero-bg, .model-head::before { animation: none !important; transform: none !important; }
  .page-hero .section-label, .page-hero h1, .page-hero p { animation: none !important; }
  .fade-in { transition: none !important; }
}