/* ============================================================
   RDF Tech – Feuille de styles principale
   ============================================================ */

/* ── Variables ─────────────────────────────────────────────── */
:root {
    --orange:        #FF6A00;
    --orange-light:  #FF8020;
    --orange-glow:   rgba(255, 106, 0, 0.15);

    --dark:          #0D1B2A;
    --dark-alt:      #101F35;
    --dark-card:     rgba(255, 255, 255, 0.045);
    --dark-border:   rgba(255, 255, 255, 0.09);

    --white:         #FFFFFF;
    --light:         #F7F8FA;

    --text:          #2D3748;
    --text-muted:    #718096;
    --text-dark-muted: rgba(255, 255, 255, 0.6);

    --border:        #E2E8F0;

    --font-body:     'Poppins', system-ui, sans-serif;
    --font-heading:  'Ubuntu', system-ui, sans-serif;

    --radius-s:  6px;
    --radius-m:  12px;
    --radius-l:  20px;

    --shadow-s:  0 1px 4px rgba(0, 0, 0, 0.08);
    --shadow-m:  0 4px 18px rgba(0, 0, 0, 0.10);
    --shadow-l:  0 8px 36px rgba(0, 0, 0, 0.14);

    --ease:      0.28s ease;
    --max-w:     1200px;
}

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

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

body {
    font-family: var(--font-body);
    color: var(--text);
    line-height: 1.65;
    overflow-x: hidden;
    background: var(--white);
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    line-height: 1.2;
    font-weight: 700;
}

h1 { font-size: clamp(2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.3rem); }
h4 { font-size: 1rem; font-weight: 600; }

a { text-decoration: none; color: inherit; transition: var(--ease); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

/* ── Layout helpers ─────────────────────────────────────────── */
.container {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section { padding: 5.5rem 0; }

.bg-white    { background: var(--white); }
.bg-dark     { background: var(--dark); color: var(--white); }
.bg-dark-alt { background: var(--dark-alt); color: var(--white); }

.text-orange { color: var(--orange); }

/* ── Tag / badge ────────────────────────────────────────────── */
.tag {
    display: inline-block;
    background: var(--orange-glow);
    color: var(--orange);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 0.3rem 0.9rem;
    border-radius: 100px;
    margin-bottom: 0.9rem;
}

/* ── Section header ─────────────────────────────────────────── */
.section-header {
    text-align: center;
    max-width: 660px;
    margin: 0 auto 3.5rem;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.05rem;
    margin-top: 0.9rem;
}

.section-header--light .tag {
    background: rgba(255, 106, 0, 0.22);
}

.section-header--light p {
    color: var(--text-dark-muted);
}

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.75rem 1.75rem;
    border-radius: var(--radius-s);
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--ease);
    white-space: nowrap;
}

.btn-primary {
    background: var(--orange);
    color: #fff;
    border-color: var(--orange);
}

.btn-primary:hover {
    background: var(--orange-light);
    border-color: var(--orange-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 22px rgba(255, 106, 0, 0.38);
}

.btn-ghost {
    background: transparent;
    color: rgba(255, 255, 255, 0.88);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.09);
    border-color: rgba(255, 255, 255, 0.85);
}

.btn-sm {
    padding: 0.45rem 1.1rem;
    font-size: 0.875rem;
}

/* ── Fade-in animation ──────────────────────────────────────── */
.fadein {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity 0.55s ease, transform 0.55s ease;
}

.fadein.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.25rem 0;
    transition: background var(--ease), padding var(--ease), box-shadow var(--ease);
}

.navbar.is-scrolled {
    background: rgba(13, 27, 42, 0.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 0.75rem 0;
    box-shadow: 0 2px 24px rgba(0, 0, 0, 0.35);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo */
.logo {
    font-family: var(--font-heading);
    font-size: 1.55rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    flex-shrink: 0;
}

.logo-rdf  { color: var(--orange); }
.logo-tech { color: var(--white); }

/* Logo image (navbar) */
.logo-img {
    height: 92px;
    width: auto;
    border-radius: 8px;
    display: block;
    transition: transform var(--ease), opacity var(--ease);
}

.logo:hover .logo-img {
    transform: scale(1.05);
    opacity: 0.9;
}

/* Nav links */
.nav-links {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.nav-links a {
    color: rgba(255, 255, 255, 0.82);
    font-weight: 500;
    font-size: 0.92rem;
    padding: 0.45rem 0.8rem;
    border-radius: var(--radius-s);
}

.nav-links a:not(.btn-nav):hover,
.nav-links a.is-active {
    color: var(--white);
    background: rgba(255, 255, 255, 0.09);
}

.nav-links a.is-active { color: var(--orange); }

/* Contact button in nav */
.btn-nav {
    background: var(--orange) !important;
    color: #fff !important;
    padding: 0.45rem 1.1rem;
    border-radius: var(--radius-s);
    font-weight: 600;
    margin-left: 0.4rem;
}

.btn-nav:hover {
    background: var(--orange-light) !important;
    box-shadow: 0 4px 14px rgba(255, 106, 0, 0.35);
}

/* Hamburger */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.3rem;
    z-index: 1100;
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: transform var(--ease), opacity var(--ease);
    transform-origin: center;
}

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

/* ============================================================
   HERO
   ============================================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--dark);
    overflow: hidden;
}

/* Subtle dot-grid pattern (évoque un PCB) */
.hero-grid-pattern {
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle, rgba(255, 106, 0, 0.18) 1px, transparent 1px);
    background-size: 38px 38px;
    pointer-events: none;
    opacity: 0.5;
}

/* Radial glow */
.hero-bg-glow {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 65% 65% at 72% 50%, rgba(255, 106, 0, 0.09) 0%, transparent 60%),
        radial-gradient(ellipse 40% 50% at 15% 25%, rgba(74, 140, 219, 0.06) 0%, transparent 55%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    padding-top: 9rem;
    padding-bottom: 5rem;
    max-width: 720px;
}

.hero-badge {
    display: inline-block;
    border: 1px solid rgba(255, 106, 0, 0.35);
    background: rgba(255, 106, 0, 0.1);
    color: #ff8a33;
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 0.4rem 1rem;
    border-radius: 100px;
    margin-bottom: 1.5rem;
}

.hero h1 {
    color: var(--white);
    margin-bottom: 1.25rem;
    line-height: 1.15;
}

.hero-subtitle {
    color: rgba(255, 255, 255, 0.68);
    font-size: 1.08rem;
    max-width: 580px;
    margin-bottom: 2.5rem;
    line-height: 1.72;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Scroll hint */
.hero-scroll {
    position: absolute;
    bottom: 2.2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.45rem;
    color: rgba(255, 255, 255, 0.35);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    z-index: 2;
    transition: color var(--ease);
}

.hero-scroll:hover { color: rgba(255, 255, 255, 0.7); }

.scroll-chevron {
    width: 18px;
    height: 18px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg);
    animation: chevronBounce 1.6s ease-in-out infinite;
}

@keyframes chevronBounce {
    0%, 100% { transform: rotate(45deg) translateY(0); }
    50%       { transform: rotate(45deg) translateY(5px); }
}

/* ============================================================
   SECTEURS
   ============================================================ */
.sectors-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.sector-card {
    background: var(--light);
    border: 1px solid var(--border);
    border-radius: var(--radius-m);
    padding: 2.5rem 2rem;
    text-align: center;
    transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
}

.sector-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-l);
    border-color: rgba(255, 106, 0, 0.22);
}

.sector-card--featured {
    background: var(--orange);
    border-color: var(--orange);
    color: var(--white);
}

.sector-card--featured .sector-icon { color: var(--white); }
.sector-card--featured h3           { color: var(--white); }
.sector-card--featured p            { color: rgba(255, 255, 255, 0.85); }

.sector-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1.5rem;
    color: var(--orange);
}

.sector-icon svg { width: 100%; height: 100%; }

.sector-card h3 { margin-bottom: 0.75rem; }
.sector-card p  { color: var(--text-muted); font-size: 0.95rem; }

/* ============================================================
   ÉLECTRONIQUE
   ============================================================ */
.expertise-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.expertise-card {
    position: relative;
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-m);
    padding: 2rem 2rem 2rem;
    overflow: hidden;
    transition: background var(--ease), border-color var(--ease), transform var(--ease);
}

.expertise-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--orange), transparent 70%);
    opacity: 0;
    transition: opacity var(--ease);
}

.expertise-card:hover {
    background: rgba(255, 255, 255, 0.065);
    border-color: rgba(255, 106, 0, 0.28);
    transform: translateY(-3px);
}

.expertise-card:hover::before { opacity: 1; }

.expertise-num {
    font-size: 2.8rem;
    font-weight: 700;
    font-family: var(--font-heading);
    color: rgba(255, 106, 0, 0.2);
    line-height: 1;
    margin-bottom: 1rem;
}

.expertise-card h3 { color: var(--white); margin-bottom: 0.65rem; }
.expertise-card p  { color: var(--text-dark-muted); font-size: 0.93rem; }

/* ============================================================
   BANCS DE TEST – SOUVERAINETÉ INDUSTRIELLE
   ============================================================ */

/* Bannière principale */
.sovereign-banner {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 3rem;
    align-items: center;
    background: var(--dark);
    border-radius: var(--radius-l);
    padding: 3rem;
    margin-bottom: 3rem;
    color: var(--white);
}

.sovereign-flag-block {
    text-align: center;
    flex-shrink: 0;
}

.sovereign-flag-emoji {
    display: block;
    font-size: 4rem;
    line-height: 1;
    margin-bottom: 0.6rem;
}

.sovereign-flag-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--orange);
    font-weight: 600;
}

.sovereign-text h3 {
    color: var(--white);
    font-size: 1.45rem;
    margin-bottom: 1rem;
}

.sovereign-text p {
    color: rgba(255, 255, 255, 0.68);
    font-size: 0.97rem;
    line-height: 1.75;
    margin-bottom: 0.75rem;
}

.sovereign-text p:last-child { margin-bottom: 0; }

/* Processus en 3 étapes */
.process-steps {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    gap: 1rem;
    align-items: center;
    margin-bottom: 3rem;
}

.process-step {
    background: var(--light);
    border: 1px solid var(--border);
    border-radius: var(--radius-m);
    padding: 2rem 1.5rem;
    text-align: center;
    transition: box-shadow var(--ease), border-color var(--ease), transform var(--ease);
}

.process-step:hover {
    border-color: rgba(255, 106, 0, 0.25);
    box-shadow: var(--shadow-m);
    transform: translateY(-3px);
}

.step-num {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    color: rgba(255, 106, 0, 0.2);
    line-height: 1;
    margin-bottom: 0.75rem;
}

.step-icon {
    width: 44px;
    height: 44px;
    background: var(--orange-glow);
    border-radius: var(--radius-s);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--orange);
    margin: 0 auto 1rem;
}

.step-icon svg { width: 22px; height: 22px; }

.process-step h4 { color: var(--text); margin-bottom: 0.5rem; }
.process-step p  { color: var(--text-muted); font-size: 0.88rem; line-height: 1.6; }

.process-arrow {
    color: rgba(255, 106, 0, 0.4);
    flex-shrink: 0;
}

.process-arrow svg { width: 28px; height: 28px; }

/* Avantages clés */
.sovereign-perks {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
}

.sovereign-perk {
    background: var(--light);
    border: 1px solid var(--border);
    border-radius: var(--radius-m);
    padding: 1.75rem 1.5rem;
    text-align: center;
    transition: border-color var(--ease), box-shadow var(--ease), transform var(--ease);
}

.sovereign-perk:hover {
    border-color: rgba(255, 106, 0, 0.22);
    box-shadow: var(--shadow-m);
    transform: translateY(-3px);
}

.sovereign-perk-icon {
    width: 48px;
    height: 48px;
    background: var(--orange-glow);
    border-radius: var(--radius-s);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--orange);
    margin: 0 auto 1rem;
}

.sovereign-perk-icon svg { width: 22px; height: 22px; }

.sovereign-perk h4 { color: var(--text); margin-bottom: 0.5rem; font-size: 0.97rem; }
.sovereign-perk p  { color: var(--text-muted); font-size: 0.85rem; line-height: 1.55; }

/* ============================================================
   AVANTAGES
   ============================================================ */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1.25rem;
}

.adv-card {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-m);
    padding: 1.75rem 1.4rem;
    text-align: center;
    transition: background var(--ease), border-color var(--ease), transform var(--ease);
}

.adv-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 106, 0, 0.28);
    transform: translateY(-5px);
}

.adv-icon {
    width: 46px;
    height: 46px;
    margin: 0 auto 1rem;
    color: var(--orange);
}

.adv-icon svg { width: 100%; height: 100%; }

.adv-card h3 { color: var(--white); font-size: 0.97rem; margin-bottom: 0.55rem; }
.adv-card p  { color: rgba(255, 255, 255, 0.58); font-size: 0.83rem; line-height: 1.5; }

/* ============================================================
   PARTENAIRE COOPTEK
   ============================================================ */
.partner-banner {
    display: grid;
    grid-template-columns: auto 1px 1fr;
    gap: 3.5rem;
    align-items: center;
    background: var(--light);
    border: 1px solid var(--border);
    border-radius: var(--radius-l);
    padding: 3rem 3.5rem;
}

.partner-logo-block {
    text-align: center;
    min-width: 180px;
}

.partner-official-badge {
    display: inline-block;
    background: var(--orange-glow);
    color: var(--orange);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 0.3rem 0.8rem;
    border-radius: 100px;
    margin-bottom: 0.75rem;
}

.partner-logo-img {
    display: block;
    max-width: 126px;
    height: auto;
    margin: 0.5rem auto 0.75rem;
}

.partner-location {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.partner-divider {
    background: var(--border);
    align-self: stretch;
}

.partner-content h3 {
    font-size: 1.25rem;
    color: var(--dark);
    margin-bottom: 1.5rem;
}

.partner-perks {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    margin-bottom: 2rem;
}

.partner-perks li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text);
    font-size: 0.97rem;
}

.partner-perks li svg {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    color: var(--orange);
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
    max-width: 1100px;
    margin: 0 auto;
}

.contact-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-m);
    padding: 2.5rem 1.75rem;
    text-align: center;
    transition: background var(--ease), border-color var(--ease), transform var(--ease);
    cursor: pointer;
}

.contact-card:hover {
    background: rgba(255, 255, 255, 0.075);
    border-color: rgba(255, 106, 0, 0.3);
    transform: translateY(-5px);
}

.contact-icon-wrap {
    width: 52px;
    height: 52px;
    background: rgba(255, 106, 0, 0.14);
    border-radius: var(--radius-s);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--orange);
    margin-bottom: 1.25rem;
}

.contact-icon-wrap svg { width: 24px; height: 24px; }

.contact-label {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: rgba(255, 255, 255, 0.42);
    font-weight: 600;
    margin-bottom: 0.6rem;
}

.contact-value {
    display: block;
    color: var(--white);
    font-size: 0.97rem;
    font-weight: 500;
    word-break: break-all;
}

.contact-card:hover .contact-value { color: var(--orange); }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
    background: #070e18;
    padding: 2.25rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.footer-brand > span {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
}

.footer-brand .logo-rdf  { color: var(--orange); }
.footer-brand .logo-tech { color: var(--white); }

/* Logo image (footer) */
.footer-logo-img {
    height: 104px;
    width: auto;
    border-radius: 8px;
    display: block;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.38);
    font-size: 0.78rem;
    margin-top: 0.25rem;
}

.footer-links {
    display: flex;
    gap: 1.4rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.46);
    font-size: 0.87rem;
}

.footer-links a:hover { color: var(--orange); }

.footer-copy {
    text-align: right;
}

.footer-copy p {
    color: rgba(255, 255, 255, 0.32);
    font-size: 0.78rem;
    line-height: 1.65;
}

/* Mentions légales */
.mentions-block {
    margin-bottom: 2.5rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}
.mentions-block:last-child { border-bottom: none; }
.mentions-block h2 {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 1rem;
}
.mentions-block p {
    color: var(--text);
    line-height: 1.75;
    margin-bottom: 0.4rem;
}
.mentions-block a { color: var(--orange); }

/* ============================================================
   INTRO SPLIT (texte + illustration côte à côte)
   ============================================================ */
.intro-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.intro-split-text h2 {
    font-family: var(--font-heading);
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    color: var(--text);
    margin-bottom: 1.25rem;
    line-height: 1.25;
}

.intro-split-text p {
    color: var(--text-muted);
    line-height: 1.75;
    margin-bottom: 1rem;
}

.intro-split-list {
    list-style: none;
    padding: 0;
    margin: 1.25rem 0 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.intro-split-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    color: var(--text);
    font-size: 0.95rem;
    line-height: 1.5;
}

.intro-split-list li svg {
    width: 18px;
    height: 18px;
    min-width: 18px;
    color: var(--orange);
    margin-top: 2px;
}

.intro-split-image {
    max-width: 80%;
    margin-left: auto;
    margin-right: auto;
}

.intro-split-image img {
    width: 100%;
    height: auto;
    display: block;
    padding: 2rem;
    object-fit: contain;
}

/* Variant sombre de l'intro-split (pour sections bg-dark) */
.intro-split--dark .intro-split-text h3 {
    font-family: var(--font-heading);
    font-size: clamp(1.4rem, 2.5vw, 2rem);
    color: #fff;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.intro-split--dark .intro-split-text p {
    color: rgba(255, 255, 255, 0.65);
}

/* Image photo (vs illustration SVG) */
.intro-split-image--photo {
    max-width: 100%;
    margin: 0;
}

.intro-split-image--photo img {
    padding: 0;
    object-fit: cover;
    aspect-ratio: 4 / 3;
    border-radius: 12px;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
}

.gallery-grid--featured {
    grid-template-columns: 1fr 1fr;
    max-width: 80%;
    margin-left: auto;
    margin-right: auto;
}

.gallery-grid--featured .gallery-item:first-child {
    grid-row: span 2;
    aspect-ratio: auto;
}

/* ============================================================
   SERVICES OVERVIEW (homepage)
   ============================================================ */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.service-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: 2.5rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--orange);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.35s ease;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 106, 0, 0.25);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    width: 52px;
    height: 52px;
    background: rgba(255, 106, 0, 0.12);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--orange);
    flex-shrink: 0;
}

.service-icon svg {
    width: 26px;
    height: 26px;
}

.service-card h3 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    color: #fff;
    line-height: 1.3;
    margin: 0;
}

.service-card p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.88rem;
    line-height: 1.7;
    flex: 1;
    margin: 0;
}

.service-card-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--orange);
    font-weight: 600;
    font-size: 0.875rem;
    text-decoration: none;
    margin-top: 0.25rem;
}

.service-card-link svg {
    width: 15px;
    height: 15px;
    transition: transform 0.2s ease;
}

.service-card:hover .service-card-link svg {
    transform: translateX(5px);
}

@media (max-width: 900px) {
    .intro-split { grid-template-columns: 1fr; gap: 2rem; }
    .intro-split-image { max-width: 480px; margin: 0 auto; }
    .services-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
    .gallery-grid--featured { grid-template-columns: 1fr; }
    .gallery-grid--featured .gallery-item:first-child { grid-row: auto; aspect-ratio: 4 / 3; }
    .services-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   FORMULAIRE DE CONTACT
   ============================================================ */
.contact-form {
    max-width: 720px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

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

.form-group label {
    font-size: 0.85rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.65);
    letter-spacing: 0.02em;
}

.form-group input,
.form-group select,
.form-group textarea {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: var(--radius-s);
    padding: 0.85rem 1rem;
    color: var(--white);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: border-color var(--ease), background var(--ease);
    width: 100%;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.3);
}

.form-group select {
    appearance: none;
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='rgba(255,255,255,0.45)' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 16px;
    padding-right: 2.5rem;
}

.form-group select option {
    background: var(--dark);
    color: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--orange);
    background: rgba(255, 106, 0, 0.07);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
    line-height: 1.6;
}

.contact-form .btn {
    align-self: flex-start;
    margin-top: 0.5rem;
}

.form-success-msg {
    display: none;
    text-align: center;
    padding: 2rem;
    color: var(--white);
}

/* ============================================================
   PAGE HERO (pages internes)
   ============================================================ */
.page-hero {
    position: relative;
    padding: 9rem 0 5rem;
    background: var(--dark);
    overflow: hidden;
    text-align: center;
}

.page-hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
}

/* Image de fond optionnelle dans le hero (photo PCB, etc.) */
.page-hero-bg-img {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
}

.page-hero-bg-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    opacity: 0.22;
    filter: grayscale(20%) brightness(0.5);
}

.page-hero h1 {
    color: var(--white);
    margin-bottom: 1.25rem;
}

.page-hero .hero-subtitle {
    margin-bottom: 2.5rem;
}

/* ============================================================
   GALERIE (page bancs de test)
   ============================================================ */
.gallery-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.gallery-item {
    position: relative;
    border-radius: var(--radius-m);
    overflow: hidden;
    background: var(--light);
    border: 1px solid var(--border);
    aspect-ratio: 4 / 3;
    transition: transform var(--ease), box-shadow var(--ease);
}

.gallery-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-l);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}

.gallery-item--illustration img {
    object-fit: contain;
    padding: 1rem;
}

.gallery-item:hover img {
    transform: scale(1.04);
}

.gallery-item--illustration:hover img {
    transform: scale(1.02);
}

.gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(7, 14, 24, 0.85), transparent);
    color: var(--white);
    padding: 2rem 1.25rem 1rem;
    font-size: 0.88rem;
    font-weight: 500;
    opacity: 0;
    transition: opacity var(--ease);
}

.gallery-item:hover .gallery-caption {
    opacity: 1;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Tablette large (≤ 1100px) */
@media (max-width: 1100px) {
    .advantages-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Tablette (≤ 900px) */
@media (max-width: 900px) {
    .section { padding: 4.5rem 0; }

    .sovereign-banner {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 2rem;
        gap: 1.5rem;
    }

    .process-steps {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin-left: auto;
        margin-right: auto;
    }

    .process-arrow { transform: rotate(90deg); margin: 0 auto; }

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

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

    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
        max-width: 600px;
    }
}

/* Tablette (≤ 768px) – galerie & formulaire */
@media (max-width: 768px) {
    .gallery-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .contact-form .btn { align-self: stretch; text-align: center; }
}

/* Mobile (≤ 768px) */
@media (max-width: 768px) {
    /* Hamburger visible */
    .nav-toggle { display: flex; }

    /* Menu plein écran */
    .nav-links {
        position: fixed;
        inset: 0;
        background: rgba(7, 14, 24, 0.98);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 0.6rem;
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.28s ease;
        padding: 2rem;
        z-index: 1050;
    }

    .nav-links.is-open {
        opacity: 1;
        pointer-events: auto;
    }

    .nav-links li {
        width: 100%;
        display: flex;
        justify-content: center;
    }

    .nav-links a {
        font-size: 1.2rem;
        padding: 0.7rem 1.5rem;
        width: 100%;
        text-align: center;
    }

    .btn-nav {
        margin-top: 0.5rem;
        padding: 0.65rem 2rem !important;
        width: auto !important;
    }

    /* Hero */
    .hero-content { padding-top: 7.5rem; }
    .hero-scroll   { display: none; }

    /* Grids → 1 colonne */
    .sectors-grid  { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
    .expertise-grid { grid-template-columns: 1fr; }
    .contact-grid  { grid-template-columns: 1fr; max-width: 360px; margin: 0 auto; }

    .partner-banner {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
        padding: 2rem;
    }

    .partner-divider { display: none; }

    .partner-perks li { justify-content: flex-start; text-align: left; }

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

    /* Footer */
    .footer-inner { flex-direction: column; text-align: center; }
    .footer-copy  { text-align: center; }
    .footer-links { justify-content: center; }
}

/* Petit mobile (≤ 480px) */
@media (max-width: 480px) {
    .hero-actions   { flex-direction: column; }
    .hero-actions .btn { justify-content: center; }
    .advantages-grid { grid-template-columns: 1fr; }
    .sovereign-perks { grid-template-columns: 1fr; }
}