/* ============================================================
   partials/nav-menu.css

   Styles du menu de navigation unifié.
   Extrait de styles.css pour pages qui ne chargent pas styles.css.
   Duplication temporaire assumée; à consolider lors d'un
   refactor CSS ultérieur.

   À inclure dans le <head> des pages qui utilisent
   <div id="main-nav"></div> + loadNavMenu() d'app.js.
   ============================================================ */

/* Variables CSS requises par les règles ci-dessous.
   Fusionne avec le :root existant si styles.css est aussi chargé. */
:root {
    --primary-color: #0f2340;
    --secondary-color: #1a3a5c;
    --text-primary: #212121;
    --accent-color: #c8960c;
}

/* ========== BOUTON HAMBURGER ========== */

.nav-menu-toggle {
    position: fixed;
    top: 10px;
    left: 15px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 8px 14px;
    border-radius: 25px;
    cursor: pointer;
    z-index: 1100;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
    font-weight: 600;
    border: none;
    outline: none;
}

.nav-menu-toggle:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.25);
}

.nav-menu-toggle .menu-icon {
    font-size: 20px;
    line-height: 1;
}

.nav-menu-toggle .menu-text {
    font-size: 13px;
    letter-spacing: 0.5px;
}

/* ========== PANNEAU DE MENU COULISSANT ========== */

.nav-menu {
    position: fixed !important;
    top: 0 !important;
    left: -350px !important;
    width: 320px !important;
    height: 100vh !important;
    background: white !important;
    box-shadow: 4px 0 20px rgba(0,0,0,0.15) !important;
    z-index: 1200 !important;
    transition: left 0.4s cubic-bezier(0.4, 0, 0.2, 1) !important;
    overflow-y: auto !important;
    overflow-x: hidden !important;
}

.nav-menu.active {
    left: 0 !important;
}

.nav-menu-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 24px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.nav-menu-header h3 {
    margin: 0;
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.close-menu {
    background: rgba(255,255,255,0.2);
    border: none;
    color: white;
    font-size: 26px;
    cursor: pointer;
    padding: 0;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    border-radius: 50%;
    font-weight: 300;
}

.close-menu:hover {
    background: rgba(255,255,255,0.3);
    transform: rotate(90deg);
}

/* ========== LISTE D'ITEMS PLATS ========== */

.nav-menu-list {
    list-style: none;
    padding: 10px 0;
    margin: 0;
}

.nav-menu-list li {
    border-bottom: 1px solid #f0f0f0;
}

.nav-menu-list li:last-child {
    border-bottom: none;
}

.nav-menu-list li a {
    display: block;
    padding: 18px 24px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 15px;
    transition: all 0.3s ease;
    font-weight: 500;
    position: relative;
}

.nav-menu-list li a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 4px;
    background: var(--primary-color);
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.nav-menu-list li a:hover {
    background: linear-gradient(90deg, rgba(15, 35, 64, 0.08) 0%, transparent 100%);
    color: var(--primary-color);
    padding-left: 32px;
}

.nav-menu-list li a:hover::before {
    transform: scaleY(1);
}

/* ========== SOUS-MENUS (accordéon) ========== */

.nav-menu-list .has-submenu {
    display: block;
}

.nav-menu-list .submenu-toggle {
    width: 100%;
    background: transparent;
    border: none;
    font: inherit;
    font-size: 15px;
    font-weight: 600;
    text-align: left;
    padding: 14px 20px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    transition: background 0.2s ease, padding-left 0.2s ease;
    font-family: inherit;
    color: var(--text-primary, #212121);
}

.nav-menu-list .submenu-toggle:hover,
.nav-menu-list .submenu-toggle:focus {
    background: rgba(200, 150, 12, 0.15);
    padding-left: 26px;
    outline: none;
}

.nav-menu-list .submenu-chevron {
    display: inline-block;
    font-size: 10px;
    transition: transform 0.25s ease;
    margin-left: 12px;
    color: var(--accent-color, #c8960c);
}

.nav-menu-list .has-submenu.open .submenu-chevron {
    transform: rotate(180deg);
}

.nav-submenu {
    list-style: none;
    padding: 0;
    margin: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    background: rgba(0, 0, 0, 0.03);
}

.nav-menu-list .has-submenu.open .nav-submenu {
    max-height: 800px;
    transition: max-height 0.4s ease-in;
}

.nav-submenu li {
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.nav-submenu li:last-child {
    border-bottom: none;
}

.nav-submenu li a {
    display: block;
    padding: 11px 20px 11px 38px;
    color: var(--text-primary, #212121);
    text-decoration: none;
    font-size: 14px;
    font-weight: 400;
    transition: background 0.2s ease, padding-left 0.2s ease;
}

.nav-submenu li a:hover,
.nav-submenu li a:focus {
    background: rgba(200, 150, 12, 0.2);
    color: var(--primary-color, #0f2340);
    padding-left: 44px;
    outline: none;
}

/* ========== ITEMS SIMPLES & HIGHLIGHT ========== */

.nav-item-simple a {
    display: block;
    padding: 14px 20px;
    color: var(--text-primary, #212121);
    text-decoration: none;
    font-size: 15px;
    font-weight: 600;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    transition: background 0.2s ease, padding-left 0.2s ease;
}

.nav-item-simple a:hover,
.nav-item-simple a:focus {
    background: rgba(200, 150, 12, 0.15);
    color: var(--primary-color, #0f2340);
    padding-left: 26px;
    outline: none;
}

.nav-item-highlight a {
    background: rgba(200, 150, 12, 0.25);
    font-weight: 700;
}

/* ========== OVERLAY ========== */

.nav-overlay {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    height: 100% !important;
    background: rgba(0,0,0,0.6) !important;
    z-index: 1150 !important;
    opacity: 0 !important;
    visibility: hidden !important;
    transition: opacity 0.4s ease, visibility 0.4s ease !important;
}

.nav-overlay.active {
    opacity: 1 !important;
    visibility: visible !important;
}

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

@media (max-width: 768px) {
    .nav-menu-toggle {
        top: 10px;
        left: 10px;
        padding: 8px 12px;
    }

    .nav-menu-toggle .menu-icon {
        font-size: 18px;
    }

    .nav-menu-toggle .menu-text {
        font-size: 12px;
    }

    .nav-menu {
        width: 280px !important;
        left: -300px !important;
    }
}

@media (max-width: 480px) {
    .nav-menu-toggle {
        top: 10px;
        left: 8px;
        padding: 7px 11px;
    }

    .nav-menu-toggle .menu-icon {
        font-size: 17px;
    }

    .nav-menu-toggle .menu-text {
        font-size: 11px;
    }

    .nav-menu {
        width: 260px !important;
        left: -280px !important;
    }

    .nav-menu-list li a {
        font-size: 14px;
        padding: 16px 20px;
    }

    .nav-menu-header {
        padding: 20px 18px;
    }

    .nav-menu-header h3 {
        font-size: 18px;
    }
}
