/* ===========================================
   Styles principaux - Vocabulaire
   =========================================== */

/* Reset et base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #4a7c59;
    --primary-dark: #3d6649;
    --primary-light: #5a9c6a;
    --secondary: #f5f5f5;
    --text: #333;
    --text-light: #666;
    --white: #fff;
    --border: #ddd;
    --shadow: 0 2px 8px rgba(0,0,0,0.1);
    --radius: 8px;
}

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--secondary);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    background: var(--white);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header h1 {
    font-size: 1.5rem;
    color: var(--primary);
}

.header-nav {
    display: flex;
    gap: 1rem;
}

.header-nav a {
    text-decoration: none;
    color: var(--text-light);
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    transition: all 0.2s;
}

.header-nav a:hover,
.header-nav a.active {
    background: var(--primary);
    color: var(--white);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.user-menu a,
.user-menu button {
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.25rem;
}

/* Boutons */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-google {
    background: var(--white);
    border: 1px solid var(--border);
    color: var(--text);
}

.btn-google:hover {
    background: var(--secondary);
}

/* Main content */
.main-content {
    flex: 1;
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

/* Welcome section */
.welcome-section {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
}

.welcome-card {
    background: var(--white);
    padding: 3rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    max-width: 500px;
    text-align: center;
}

.welcome-card h2 {
    color: var(--primary);
    margin-bottom: 1rem;
}

.features-list {
    list-style: none;
    text-align: left;
    margin: 1.5rem 0;
}

.features-list li {
    padding: 0.5rem 0;
}

.cta {
    color: var(--primary);
    font-weight: 600;
    margin-top: 1rem;
}

/* Dashboard */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    text-decoration: none;
    color: var(--text);
    transition: all 0.2s;
    text-align: center;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.card h3 {
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.card p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Footer */
.footer {
    background: var(--white);
    padding: 1rem 2rem;
    text-align: center;
    border-top: 1px solid var(--border);
}

.footer a {
    color: var(--primary);
}

/* Utilities */
.hidden {
    display: none !important;
}

/* Responsive */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }

    .header-nav {
        order: 3;
        width: 100%;
        justify-content: center;
    }

    .main-content {
        padding: 1rem;
    }

    .welcome-card {
        padding: 2rem;
    }

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