/* ===================================================
   PROTEC AFRIC SECURITY - Stylesheet principal
   VERSION CORRIGÉE RESPONSIVE
   =================================================== */

/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
img, svg { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { cursor: pointer; font: inherit; border: none; background: none; }
input, textarea, select { font: inherit; }

/* Variables (couleurs basées sur le logo) */
:root {
    --color-navy: #0a1628;
    --color-navy-light: #142849;
    --color-navy-dark: #050d1a;
    --color-gold: #d4af37;
    --color-gold-light: #e8c66a;
    --color-gold-dark: #a88828;
    --color-red: #b91c1c;
    --color-white: #ffffff;
    --color-gray-50: #f8fafc;
    --color-gray-100: #f1f5f9;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e1;
    --color-gray-500: #64748b;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1e293b;
    --color-gray-900: #0f172a;

    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Outfit', system-ui, sans-serif;

    --shadow-sm: 0 2px 4px rgba(10, 22, 40, 0.06);
    --shadow-md: 0 4px 12px rgba(10, 22, 40, 0.1);
    --shadow-lg: 0 10px 30px rgba(10, 22, 40, 0.15);
    --shadow-xl: 0 20px 50px rgba(10, 22, 40, 0.2);
    --shadow-gold: 0 10px 30px rgba(212, 175, 55, 0.3);

    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

    --container: 1280px;
    --header-height: 80px;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-gray-700);
    background: var(--color-white);
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-navy);
    letter-spacing: -0.02em;
}

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 1.5rem;
    width: 100%;
}

/* === Preloader === */
.preloader {
    position: fixed;
    inset: 0;
    background: var(--color-navy);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}
.preloader.loaded { opacity: 0; visibility: hidden; }
.preloader-logo {
    margin-bottom: 1.5rem;
    animation: pulse-logo 2s ease-in-out infinite;
}
.preloader-logo img {
    height: 100px;
    width: auto;
    filter: drop-shadow(0 4px 20px rgba(212, 175, 55, 0.3));
}
@keyframes pulse-logo {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.85; transform: scale(0.96); }
}
.spinner {
    width: 48px;
    height: 48px;
    border: 3px solid rgba(212, 175, 55, 0.2);
    border-top-color: var(--color-gold);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* === Top Bar === */
.topbar {
    background: var(--color-navy-dark);
    color: var(--color-gray-300);
    font-size: 0.85rem;
    padding: 0.5rem 0;
}
.topbar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.topbar-info { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.topbar-info span { display: inline-flex; align-items: center; gap: 0.4rem; }
.topbar-info svg { width: 14px; height: 14px; color: var(--color-gold); }
.topbar-cta {
    color: var(--color-gold);
    font-weight: 600;
    transition: color var(--transition);
}
.topbar-cta:hover { color: var(--color-gold-light); }

@media (max-width: 768px) {
    .topbar { display: none; }
}

/* === Navigation === */
.navbar {
    position: sticky;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 100;
    transition: box-shadow var(--transition);
}
.navbar.scrolled { box-shadow: var(--shadow-md); }
.nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: var(--header-height);
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    line-height: 1;
}
.nav-logo img {
    height: 52px;
    width: auto;
    object-fit: contain;
    transition: transform var(--transition);
}
.nav-logo:hover img {
    transform: scale(1.05);
}
.nav-logo-text {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 900;
    color: var(--color-navy);
    letter-spacing: -0.04em;
    line-height: 1;
    display: flex;
    flex-direction: column;
}
.nav-logo-text span { color: var(--color-gold); }
.nav-logo-text small {
    font-family: var(--font-body);
    font-size: 0.6rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    color: var(--color-gray-500);
    text-transform: uppercase;
    margin-top: 3px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}
.nav-menu a {
    color: var(--color-gray-700);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    transition: color var(--transition);
}
.nav-menu a:hover, .nav-menu a.active { color: var(--color-navy); }
.nav-menu a.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-gold);
}
.nav-cta {
    background: var(--color-navy);
    color: var(--color-white) !important;
    padding: 0.7rem 1.5rem;
    border-radius: 50px;
    transition: all var(--transition);
}
.nav-cta:hover {
    background: var(--color-gold);
    color: var(--color-navy) !important;
    transform: translateY(-2px);
    box-shadow: var(--shadow-gold);
}
.nav-cta::after { display: none !important; }

.menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    z-index: 1001;
    position: relative;
}
.menu-toggle span {
    display: block;
    width: 26px;
    height: 2px;
    background: var(--color-navy);
    transition: all var(--transition);
    transform-origin: center;
}
.menu-toggle.active span:nth-child(1),
.menu-toggle.is-active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2),
.menu-toggle.is-active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3),
.menu-toggle.is-active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== MENU MOBILE - OVERLAY PLEIN ÉCRAN ===== */
@media (max-width: 1024px) {
    .menu-toggle { display: flex; }

    .nav-menu {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        width: 100%;
        height: 100vh;
        height: 100dvh;
        max-width: 100%;
        background: var(--color-white);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        padding: 5rem 1.5rem 2rem;
        gap: 0;
        margin: 0;

        /* Animation : fade + slide */
        opacity: 0;
        visibility: hidden;
        transform: translateY(-20px);
        transition: opacity 0.35s ease,
                    transform 0.35s ease,
                    visibility 0s linear 0.35s;
        z-index: 1000;
        overflow-y: auto;
        box-shadow: none;
    }

    .nav-menu.open,
    .nav-menu.is-open,
    .nav-menu.active {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
        right: 0;
        transition: opacity 0.35s ease,
                    transform 0.35s ease,
                    visibility 0s linear 0s;
    }

    .nav-menu li {
        width: 100%;
        max-width: 360px;
        text-align: center;
        border-bottom: 1px solid rgba(10, 22, 40, 0.08);
    }

    .nav-menu li:last-child {
        border-bottom: 0;
        margin-top: 1.5rem;
    }

    .nav-menu a {
        display: block;
        padding: 1.1rem 0;
        font-size: 1.1rem;
        font-weight: 500;
        text-align: center;
    }

    .nav-menu a.active::after {
        display: none;
    }

    .nav-menu a.active {
        color: var(--color-gold);
    }

    .nav-cta {
        width: auto;
        display: inline-block;
        padding: 0.95rem 2.5rem;
    }

    /* Bloque le scroll quand le menu est ouvert */
    body.menu-open,
    body.no-scroll {
        overflow: hidden;
    }
}

@media (max-width: 480px) {
    .nav-logo img { height: 42px; }
    .nav-logo-text { display: none; }
    .nav-inner { height: 70px; }
    :root { --header-height: 70px; }
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.9rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all var(--transition);
    border: 2px solid transparent;
    text-align: center;
}
.btn-gold {
    background: var(--color-gold);
    color: var(--color-navy);
}
.btn-gold:hover {
    background: var(--color-gold-light);
    transform: translateY(-3px);
    box-shadow: var(--shadow-gold);
}
.btn-outline {
    background: transparent;
    color: var(--color-white);
    border-color: var(--color-white);
}
.btn-outline:hover {
    background: var(--color-white);
    color: var(--color-navy);
}
.btn-navy {
    background: var(--color-navy);
    color: var(--color-white);
}
.btn-navy:hover {
    background: var(--color-navy-light);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

@media (max-width: 480px) {
    .btn {
        padding: 0.85rem 1.5rem;
        font-size: 0.9rem;
    }
}

/* === Page Hero (interior pages) === */
.page-hero {
    position: relative;
    background: linear-gradient(135deg, var(--color-navy-dark) 0%, var(--color-navy) 50%, var(--color-navy-light) 100%);
    color: var(--color-white);
    padding: 6rem 0 5rem;
    overflow: hidden;
}
.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 20% 30%, rgba(212, 175, 55, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(212, 175, 55, 0.08) 0%, transparent 50%);
    pointer-events: none;
}
.page-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 0h60v60H0z' fill='none'/%3E%3Cpath d='M30 0v60M0 30h60' stroke='rgba(255,255,255,0.03)' stroke-width='1'/%3E%3C/svg%3E");
    pointer-events: none;
}
.page-hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}
.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--color-gray-300);
    margin-bottom: 1rem;
    flex-wrap: wrap;
}
.breadcrumb a { color: var(--color-gold); transition: opacity var(--transition); }
.breadcrumb a:hover { opacity: 0.8; }
.breadcrumb svg { width: 12px; height: 12px; opacity: 0.5; }
.page-hero h1 {
    font-size: clamp(1.8rem, 5vw, 3.5rem);
    color: var(--color-white);
    margin-bottom: 1rem;
    line-height: 1.15;
}
.page-hero p {
    font-size: 1.05rem;
    color: var(--color-gray-300);
    max-width: 600px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .page-hero { padding: 3.5rem 0 3rem; }
    .page-hero p { font-size: 0.95rem; }
}

/* === Sections === */
.section { padding: 5rem 0; }
.section-tight { padding: 3.5rem 0; }
.section-gray { background: var(--color-gray-50); }
.section-navy { background: var(--color-navy); color: var(--color-white); }
.section-navy h2, .section-navy h3 { color: var(--color-white); }

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3.5rem;
}
.section-eyebrow {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--color-gold);
    margin-bottom: 1rem;
    position: relative;
    padding: 0 2rem;
}
.section-eyebrow::before, .section-eyebrow::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 1.5rem;
    height: 1px;
    background: var(--color-gold);
}
.section-eyebrow::before { left: 0; }
.section-eyebrow::after { right: 0; }
.section-title {
    font-size: clamp(1.5rem, 4vw, 2.75rem);
    margin-bottom: 1rem;
    line-height: 1.2;
}
.section-header p {
    font-size: 1.05rem;
    color: var(--color-gray-600);
}
.section-navy .section-header p { color: var(--color-gray-300); }

@media (max-width: 768px) {
    .section { padding: 3rem 0; }
    .section-tight { padding: 2.5rem 0; }
    .section-header { margin-bottom: 2.5rem; }
    .section-header p { font-size: 0.95rem; }
    .section-eyebrow {
        font-size: 0.7rem;
        letter-spacing: 0.2em;
        padding: 0 1.5rem;
    }
}

/* === Footer === */
.footer {
    background: var(--color-navy-dark);
    color: var(--color-gray-300);
    padding: 4rem 0 0;
    border-top: 4px solid var(--color-gold);
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}
.footer-brand .nav-logo img {
    height: 60px;
    filter: brightness(0) invert(1);
    opacity: 0.95;
}
.footer-brand .nav-logo-text { color: var(--color-white); }
.footer-brand p {
    margin: 1rem 0;
    font-size: 0.9rem;
    color: var(--color-gray-300);
    line-height: 1.7;
}
.footer-social {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
}
.footer-social a {
    width: 38px;
    height: 38px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-300);
    transition: all var(--transition);
}
.footer-social a:hover {
    background: var(--color-gold);
    color: var(--color-navy);
    transform: translateY(-3px);
}
.footer-social svg { width: 16px; height: 16px; }
.footer h4 {
    color: var(--color-gold);
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 1.25rem;
}
.footer ul { list-style: none; }
.footer ul li { margin-bottom: 0.6rem; }
.footer ul a {
    font-size: 0.9rem;
    color: var(--color-gray-300);
    transition: color var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}
.footer ul a:hover { color: var(--color-gold); }
.footer ul a::before {
    content: '›';
    color: var(--color-gold);
    font-weight: bold;
}
.footer-contact-item {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
    align-items: flex-start;
}
.footer-contact-item svg {
    width: 16px;
    height: 16px;
    color: var(--color-gold);
    margin-top: 4px;
    flex-shrink: 0;
}
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 1.5rem 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.85rem;
    color: var(--color-gray-500);
}
.footer-bottom-links { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.footer-bottom-links a:hover { color: var(--color-gold); }

@media (max-width: 900px) {
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
    .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 600px) {
    .footer { padding: 3rem 0 0; }
    .footer-grid { grid-template-columns: 1fr; gap: 2rem; margin-bottom: 2rem; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .footer-bottom-links { justify-content: center; }
}

/* === Animations === */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
.animate-fade-up { animation: fadeInUp 0.8s ease-out forwards; }
.animate-fade-in { animation: fadeIn 1s ease-out forwards; }

.reveal { opacity: 0; transform: translateY(30px); transition: all 0.8s ease-out; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* === Floating WhatsApp === */
.whatsapp-float {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    width: 56px;
    height: 56px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    z-index: 90;
    transition: transform var(--transition);
    animation: pulse-wa 2s infinite;
}
.whatsapp-float:hover { transform: scale(1.1); }
.whatsapp-float svg { width: 28px; height: 28px; }
@keyframes pulse-wa {
    0%, 100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4); }
    50% { box-shadow: 0 4px 25px rgba(37, 211, 102, 0.7); }
}

@media (max-width: 480px) {
    .whatsapp-float {
        width: 50px;
        height: 50px;
        bottom: 1rem;
        right: 1rem;
    }
    .whatsapp-float svg { width: 24px; height: 24px; }
}

/* === Utility === */
.text-gold { color: var(--color-gold); }
.text-navy { color: var(--color-navy); }
.gold-divider {
    width: 60px;
    height: 3px;
    background: var(--color-gold);
    margin: 1rem auto;
    border-radius: 2px;
}
.gold-divider.left { margin-left: 0; }