/**
 * Styles d'authentification - Style professionnel, sobre, épuré et minimaliste
 * Cohérent avec le reste du projet (polices système, pas de CDN)
 */

/* Aligné sur le design system global */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 15px;
    min-height: 100vh;
    min-height: 100dvh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    padding-bottom: env(safe-area-inset-bottom, 0);
}

/* Navigation */
.auth-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
}

.nav-logo {
    text-decoration: none;
    color: inherit;
}

.nav-logo:hover {
    text-decoration: none;
    color: inherit;
}

.nav-logo .logo-text {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.5px;
    text-decoration: none;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 400;
    transition: color 0.2s ease;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link.nav-cta {
    background: var(--primary-color);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 500;
    transition: background 0.2s ease;
}

.nav-link.nav-cta:hover {
    background: var(--primary-hover);
    color: white;
}

/* Container d'authentification */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 100px 20px 40px;
}

.auth-card {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    padding: 3rem;
    width: 100%;
    max-width: 550px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header h1 {
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.auth-header p {
    color: var(--text-secondary);
    font-size: 15px;
}

/* Formulaires */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 14px;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 15px;
    transition: all 0.2s ease;
    font-family: inherit;
    background: var(--card-bg);
    color: var(--text-primary);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.form-group small {
    display: block;
    margin-top: 0.5rem;
    color: var(--text-secondary);
    font-size: 13px;
}

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

.form-section-title {
    margin: 2rem 0 1rem 0;
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 600;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

/* Cases à cocher alignées horizontalement avec le texte */
.form-group input[type="checkbox"] {
    width: auto;
    padding: 0;
}

.checkbox-label,
.form-group.checkbox-inline > label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0;
    font-weight: 400;
}

.checkbox-label input[type="checkbox"],
.form-group.checkbox-inline input[type="checkbox"] {
    width: auto;
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
    font-family: inherit;
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

.btn-secondary:hover {
    background-color: var(--primary-light);
}

.btn-block {
    width: 100%;
}

/* Messages */
.messages {
    margin-bottom: 1.5rem;
}

.message {
    padding: 1rem;
    border-radius: var(--radius-md);
    margin-bottom: 0.5rem;
    font-size: 14px;
}

.message.error {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.message.success {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.message.info {
    background-color: var(--primary-light);
    color: #1e40af;
    border: 1px solid #bfdbfe;
}

/* Plan selection */
.plans-selection {
    margin: 1.5rem 0;
}

.plan-option {
    margin-bottom: 1rem;
    padding: 1.25rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    background: var(--card-bg);
}

.plan-option:hover {
    border-color: var(--primary-color);
    background: var(--primary-light);
}

.plan-option input[type="radio"] {
    margin-right: 0.75rem;
    cursor: pointer;
}

.plan-option input[type="radio"]:checked + div,
.plan-option:has(input[type="radio"]:checked) {
    border-color: var(--primary-color);
    background: var(--primary-light);
}

.plan-option label {
    display: flex;
    align-items: flex-start;
    cursor: pointer;
    margin: 0;
}

.plan-option-content {
    flex: 1;
}

.plan-name {
    font-weight: 600;
    font-size: 1.125rem;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.plan-description {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 0.5rem;
}

.plan-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.plan-features {
    margin-top: 0.5rem;
    font-size: 14px;
    color: var(--text-secondary);
}

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

.auth-footer p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-size: 14px;
}

.auth-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

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

/* Responsive */
@media (max-width: 768px) {
    .auth-container {
        padding: 80px 20px 40px;
    }
    
    .auth-card {
        padding: 2rem 1.5rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .auth-header h1 {
        font-size: 1.75rem;
    }
    
    .nav-container {
        height: 56px;
    }
    
    .nav-links {
        gap: 16px;
    }
    
    .nav-link {
        font-size: 13px;
    }
    
    .nav-link.nav-cta {
        padding: 6px 12px;
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .auth-card {
        padding: 1.5rem;
    }
    
    .auth-header h1 {
        font-size: 1.5rem;
    }
}