/* ================================================================
   MealPlanner AI - Styles Globaux
   ================================================================ */

:root {
    --primary-color: #4CAF50;
    --primary-dark: #45a049;
    --secondary-color: #FF9800;
    --danger-color: #f44336;
    --text-color: #333;
    --text-light: #666;
    --bg-color: #f5f5f5;
    --card-bg: #ffffff;
    --border-color: #ddd;
    --shadow: 0 2px 8px rgba(0,0,0,0.1);
    --shadow-hover: 0 4px 16px rgba(0,0,0,0.15);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* ================================================================
   Navigation
   ================================================================ */

.navbar {
    background-color: var(--primary-color);
    color: white;
    padding: 1rem 2rem;
    box-shadow: var(--shadow);
}

.navbar-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: bold;
    text-decoration: none;
    color: white;
}

.navbar-menu {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.navbar-menu a {
    color: white;
    text-decoration: none;
    transition: opacity 0.3s;
}

.navbar-menu a:hover {
    opacity: 0.8;
}

/* ================================================================
   Cards
   ================================================================ */

.card {
    background-color: var(--card-bg);
    border-radius: 8px;
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: box-shadow 0.3s;
}

.card:hover {
    box-shadow: var(--shadow-hover);
}

.card-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

/* ================================================================
   Formulaires
   ================================================================ */

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

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

.form-input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-error {
    color: var(--danger-color);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* ================================================================
   Boutons
   ================================================================ */

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    text-align: center;
}

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

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

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

.btn-secondary:hover {
    background-color: #e68900;
}

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

.btn-danger:hover {
    background-color: #da190b;
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

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

.btn-full {
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ================================================================
   Wizard Questionnaire
   ================================================================ */

.wizard-container {
    max-width: 700px;
    margin: 2rem auto;
}

.wizard-progress {
    margin-bottom: 2rem;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background-color: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background-color: var(--primary-color);
    transition: width 0.3s;
}

.progress-text {
    text-align: center;
    margin-top: 0.5rem;
    color: var(--text-light);
    font-size: 0.875rem;
}

.question-card {
    background-color: var(--card-bg);
    border-radius: 8px;
    padding: 2rem;
    box-shadow: var(--shadow);
    min-height: 300px;
}

.question-text {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    font-weight: 500;
}

.options-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.option-btn {
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background-color: white;
    cursor: pointer;
    transition: all 0.3s;
    text-align: left;
}

.option-btn:hover {
    border-color: var(--primary-color);
    background-color: #f0f9f0;
}

.option-btn.selected {
    border-color: var(--primary-color);
    background-color: #e8f5e9;
    font-weight: 500;
}

.slider-container {
    padding: 2rem 0;
}

.slider {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    outline: none;
}

.slider-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-light);
}

.wizard-actions {
    display: flex;
    justify-content: space-between;
    margin-top: 2rem;
    gap: 1rem;
}

/* ================================================================
   Grid System
   ================================================================ */

.grid {
    display: grid;
    gap: 1.5rem;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* ================================================================
   Utilities
   ================================================================ */

.text-center {
    text-align: center;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.hidden {
    display: none !important;
}

.alert {
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1rem;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-info {
    background-color: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

.spinner {
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 2rem auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ================================================================
   Responsive
   ================================================================ */

@media (max-width: 768px) {
    .navbar-content {
        flex-direction: column;
        gap: 1rem;
    }

    .navbar-menu {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }

    .wizard-actions {
        flex-direction: column;
    }

    .container {
        padding: 10px;
    }
}