/* NaturelÉpi - Styles CSS */

/* Variables CSS pour une meilleure maintenabilité */
:root {
    /* Couleurs principales */
    --primary-green: #22C55E;
    --secondary-green: #84CC16;
    --light-green: #DCFCE7;
    --lime-green: #65A30D;
    --lime-light: #F7FEE7;
    --yellow-accent: #EAB308;
    
    /* Couleurs neutres */
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    
    /* Espacements */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Ombres */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

/* Base styles */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--gray-50);
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Gradient héro */
.hero-bg-gradient {
    background: linear-gradient(135deg, var(--secondary-green) 0%, var(--primary-green) 100%);
    min-height: 100vh;
}

/* Header styles */
.header {
    background: white;
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-lg) 0;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: center;
    align-items: center;
}

.logo-icon {
    font-size: 2rem;
    color: var(--primary-green);
    margin-right: var(--spacing-md);
}

.logo-text {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-green);
}

/* Main content */
.main-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: var(--spacing-lg);
    padding-top: calc(var(--spacing-xl) * 2);
}

.content-card {
    background: rgba(255, 255, 255, 0.95);
    padding: var(--spacing-2xl);
    border-radius: 1rem;
    box-shadow: var(--shadow-xl);
    text-align: center;
    max-width: 48rem;
    color: var(--gray-800);
}

/* Typography */
.title-main {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    color: var(--primary-green);
    margin-bottom: var(--spacing-lg);
}

.subtitle {
    font-size: clamp(1.125rem, 3vw, 1.25rem);
    margin-bottom: var(--spacing-md);
    color: var(--gray-600);
}

.text-large {
    font-size: clamp(1.125rem, 3vw, 1.25rem);
    margin-bottom: var(--spacing-xl);
    color: var(--gray-600);
}

.text-highlight {
    color: var(--primary-green);
    font-weight: 600;
}

/* Feature cards */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.feature-card {
    padding: var(--spacing-lg);
    border-radius: 0.75rem;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-card.green {
    background-color: var(--light-green);
}

.feature-card.lime {
    background-color: var(--lime-light);
}

.feature-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    font-size: 2rem;
}

.feature-icon.green {
    color: var(--primary-green);
}

.feature-icon.lime {
    color: var(--lime-green);
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.feature-title.green {
    color: var(--primary-green);
}

.feature-title.lime {
    color: var(--lime-green);
}

.feature-description {
    color: var(--gray-600);
}

/* Call to action */
.cta-section {
    text-align: center;
}

.cta-title {
    font-size: clamp(1.25rem, 4vw, 1.5rem);
    font-weight: 600;
    color: var(--yellow-accent);
    margin-bottom: var(--spacing-md);
}

.cta-text {
    color: var(--gray-500);
    margin-bottom: var(--spacing-lg);
}

.cta-link {
    color: var(--primary-green);
    font-weight: 600;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.cta-link:hover {
    color: var(--lime-green);
}

.cta-small {
    font-size: 0.875rem;
    color: var(--gray-400);
}

/* Footer */
.footer {
    background-color: var(--gray-800);
    color: #D1D5DB;
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.footer-copyright {
    margin-bottom: var(--spacing-sm);
}

.footer-description,
.footer-email {
    font-size: 0.875rem;
    color: var(--gray-400);
}

/* Animations */
@keyframes fadeInDown {
    0% {
        opacity: 0;
        transform: translateY(-20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fadeInDown {
    animation: fadeInDown 0.8s ease-out forwards;
}

@keyframes fadeInUp {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fadeInUp {
    animation: fadeInUp 0.8s ease-out forwards;
}

/* PWA specific styles */
.pwa-install-prompt {
    position: fixed;
    bottom: var(--spacing-lg);
    left: var(--spacing-lg);
    right: var(--spacing-lg);
    background: white;
    border-radius: 1rem;
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-lg);
    transform: translateY(100%);
    transition: transform var(--transition-normal);
    z-index: 100;
    border: 1px solid #E5E7EB;
    max-width: 400px;
    margin: 0 auto;
}

.pwa-install-prompt.show {
    transform: translateY(0);
}

.install-prompt-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.install-prompt-header {
    display: flex;
    align-items: center;
}

.install-prompt-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
}

.install-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

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

.install-btn.primary:hover {
    background: var(--lime-green);
    transform: translateY(-1px);
}

.install-btn.secondary {
    background: var(--gray-100);
    color: var(--gray-600);
}

.install-btn.secondary:hover {
    background: var(--gray-200);
}

/* Notification de mise à jour */
.update-notification {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    background: white;
    border-radius: 0.75rem;
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-lg);
    max-width: 350px;
    z-index: 1000;
    border: 1px solid #E5E7EB;
    transform: translateX(100%);
    transition: transform var(--transition-normal);
}

.update-notification.show {
    transform: translateX(0);
}

.notification-content {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.notification-icon {
    color: var(--primary-green);
    font-size: 1.25rem;
    margin-top: 2px;
}

.notification-text {
    flex: 1;
}

.notification-text strong {
    color: var(--gray-800);
    font-size: 0.9rem;
}

.notification-text p {
    margin: 2px 0 0 0;
    font-size: 0.8rem;
    color: var(--gray-600);
}

.notification-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.btn-update {
    background: var(--primary-green);
    color: white;
    border: none;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 0.75rem;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.btn-update:hover {
    background: var(--lime-green);
}

.btn-dismiss {
    background: none;
    border: none;
    color: var(--gray-400);
    font-size: 1rem;
    cursor: pointer;
    padding: 2px;
    line-height: 1;
}

.btn-dismiss:hover {
    color: var(--gray-600);
}

/* Indicateur de statut réseau */
.network-status {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    text-align: center;
    padding: var(--spacing-sm);
    font-size: 0.875rem;
    font-weight: 500;
    z-index: 1000;
    transform: translateY(-100%);
    transition: transform var(--transition-normal);
}

.network-status.show {
    transform: translateY(0);
}

.network-status.offline {
    background: #EF4444;
    color: white;
}

.network-status.online {
    background: var(--primary-green);
    color: white;
}

.network-status i {
    margin-right: var(--spacing-xs);
}

/* Responsive design */
@media (max-width: 768px) {
    .content-card {
        padding: var(--spacing-xl);
        margin: var(--spacing-md);
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .header-content {
        padding: 0 var(--spacing-md);
    }
    
    .main-content {
        padding: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .content-card {
        padding: var(--spacing-lg);
    }
    
    .logo-text {
        font-size: 1.5rem;
    }
    
    .logo-icon {
        font-size: 1.5rem;
    }
}

/* Styles pour l'état offline */
.offline-indicator {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: #EF4444;
    color: white;
    text-align: center;
    padding: var(--spacing-sm);
    font-size: 0.875rem;
    z-index: 1000;
    transform: translateY(-100%);
    transition: transform var(--transition-normal);
}

.offline-indicator.show {
    transform: translateY(0);
}

/* Amélioration de l'accessibilité */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus states pour l'accessibilité */
a:focus,
button:focus {
    outline: 2px solid var(--primary-green);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .header,
    .footer {
        display: none;
    }
    
    .hero-bg-gradient {
        background: white !important;
        color: black !important;
    }
    
    .content-card {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}