/* public/css/navbar.css */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    height: var(--header-height);
    background: transparent;
    transition: background var(--transition-slow) var(--ease-out),
    box-shadow var(--transition-slow) var(--ease-out);
}

/* État scrollé - fond visible */
.header.is-scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
}

.navbar {
    height: 100%;
}

.navbar-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--container-padding);
}

/* ============================================
   BRAND
   ============================================ */
.navbar-brand {
    position: relative;
    z-index: 1;
}

.navbar-brand-text {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-inverse);
    transition: color var(--transition-base) var(--ease-out);
}

/* Brand devient sombre quand scrollé */
.header.is-scrolled .navbar-brand-text {
    color: var(--color-text-primary);
}

.navbar-brand-accent {
    color: var(--color-primary-500);
}

/* ============================================
   MENU
   ============================================ */
.navbar-menu {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.navbar-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: rgba(255, 255, 255, 0.85);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base) var(--ease-out);
}

.navbar-link:hover {
    color: var(--color-text-inverse);
    background: rgba(255, 255, 255, 0.1);
}

.navbar-link.is-active {
    color: var(--color-text-inverse);
}

.navbar-link.is-active::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 3px;
    background: var(--color-primary-400);
    border-radius: var(--radius-full);
}

/* Links deviennent sombres quand scrollé */
.header.is-scrolled .navbar-link {
    color: var(--color-text-secondary);
}

.header.is-scrolled .navbar-link:hover {
    color: var(--color-primary-600);
    background: var(--color-primary-50);
}

.header.is-scrolled .navbar-link.is-active {
    color: var(--color-primary-600);
}

.header.is-scrolled .navbar-link.is-active::after {
    background: var(--color-primary-600);
}

/* ============================================
   CTA BUTTON
   ============================================ */
.navbar-link-cta {
    margin-left: var(--space-2);
    padding: var(--space-2) var(--space-5);
    background: var(--color-primary-600);
    color: var(--color-text-inverse) !important;
    border-radius: var(--radius-full);
    box-shadow: 0 2px 8px rgb(112 28 245 / 0.3);
}

.navbar-link-cta:hover {
    background: var(--color-primary-500);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgb(112 28 245 / 0.4);
}

.navbar-link-cta.is-active::after {
    display: none;
}

/* CTA reste identique même scrollé */
.header.is-scrolled .navbar-link-cta {
    background: var(--color-primary-600);
    color: var(--color-text-inverse) !important;
}

.header.is-scrolled .navbar-link-cta:hover {
    background: var(--color-primary-500);
}

/* ============================================
   TOGGLE MOBILE
   ============================================ */
.navbar-toggle {
    display: none;
    position: relative;
    z-index: 1;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: var(--space-2);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast) var(--ease-out);
}

.navbar-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
}

.header.is-scrolled .navbar-toggle:hover {
    background: var(--color-gray-100);
}

.navbar-toggle-bar {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-text-inverse);
    border-radius: var(--radius-full);
    transition: all var(--transition-base) var(--ease-out);
    transform-origin: center;
}

/* Bars deviennent sombres quand scrollé */
.header.is-scrolled .navbar-toggle-bar {
    background: var(--color-text-primary);
}

/* Toggle active state */
.navbar-toggle[aria-expanded="true"] .navbar-toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.navbar-toggle[aria-expanded="true"] .navbar-toggle-bar:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.navbar-toggle[aria-expanded="true"] .navbar-toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ============================================
   OVERLAY
   ============================================ */
.navbar-overlay {
    position: fixed;
    inset: 0;
    z-index: calc(var(--z-fixed) - 1);
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-slow) var(--ease-out);
}

.navbar-overlay.is-active {
    opacity: 1;
    visibility: visible;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    .navbar-menu {
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        z-index: var(--z-fixed);
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-2);
        width: min(300px, 80vw);
        padding: calc(var(--header-height) + var(--space-6)) var(--space-6) var(--space-6);
        background: var(--color-bg-primary);
        box-shadow: var(--shadow-2xl);
        transform: translateX(100%);
        transition: transform var(--transition-slow) var(--ease-out);
    }

    .navbar-menu.is-open {
        transform: translateX(0);
    }

    /* En mobile, les liens sont toujours sombres (menu blanc) */
    .navbar-link {
        padding: var(--space-3) var(--space-4);
        color: var(--color-text-secondary);
        border-radius: var(--radius-lg);
    }

    .navbar-link:hover,
    .navbar-link.is-active {
        color: var(--color-primary-600);
        background: var(--color-primary-50);
    }

    .navbar-link.is-active::after {
        display: none;
    }

    .navbar-link-cta {
        margin-left: 0;
        margin-top: var(--space-4);
        justify-content: center;
        background: var(--color-primary-600);
        color: var(--color-text-inverse) !important;
    }

    .navbar-toggle {
        display: flex;
    }
}