/* ===================================
   SUIVI DE COLIS - DESIGN MINIMALISTE
   =================================== */

/* Variables CSS */
:root {
    /* Couleurs principales */
    --primary-color: #2563eb;
    --primary-light: #3b82f6;
    --primary-dark: #1d4ed8;
    
    /* Couleurs neutres */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Couleurs de statut */
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --info-color: #06b6d4;
    
    /* Typographie */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    
    /* Espacements */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    --spacing-24: 6rem;
    
    /* Bordures */
    --border-radius-sm: 0.375rem;
    --border-radius: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    --border-radius-2xl: 1.5rem;
    
    /* Ombres */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

/* Reset et base */
.tracking-page {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--gray-50);
    min-height: 100vh;
}

.tracking-page * {
    box-sizing: border-box;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ===================================
   EN-TÊTE MODERNISÉ
   =================================== */

.alfax-process-header {
    text-align: center;
    padding: 60px 0 80px;
    background: linear-gradient(135deg, #1e40af 0%, #3b82f6 50%, #60a5fa 100%);
    border-radius: 20px;
    margin-bottom: 60px;
    position: relative;
    overflow: hidden;
}

.alfax-process-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.alfax-process-hero {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.alfax-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 0.9em;
    font-weight: 500;
    margin-bottom: 20px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.alfax-process-hero h1 {
    font-size: 3.2em;
    color: white;
    margin-bottom: 20px;
    font-weight: 700;
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.alfax-process-hero p {
    font-size: 1.3em;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 40px;
    line-height: 1.6;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.alfax-process-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

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

.alfax-stat-number {
    font-size: 2.5em;
    font-weight: 700;
    color: white;
    line-height: 1;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.alfax-stat-label {
    font-size: 0.9em;
    color: rgba(255, 255, 255, 0.9);
    margin-top: 5px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* ===================================
   SEARCH SECTION
   =================================== */

.search-section {
    padding: var(--spacing-16) 0;
    position: relative;
    margin-top: calc(-1 * var(--spacing-12));
}

.search-card {
    background: white;
    border-radius: var(--border-radius-2xl);
    padding: var(--spacing-10);
    box-shadow: var(--shadow-xl);
    max-width: 800px;
    margin: 0 auto;
}

.tracking-form {
    margin-bottom: var(--spacing-12);
}

.input-group {
    display: flex;
    gap: var(--spacing-4);
    align-items: stretch;
}

.tracking-input {
    flex: 1;
    padding: var(--spacing-4) var(--spacing-6);
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius-lg);
    font-size: var(--font-size-lg);
    font-weight: 500;
    background: var(--gray-50);
    transition: all var(--transition-normal);
    outline: none;
}

.tracking-input:focus {
    border-color: var(--primary-color);
    background: white;
    box-shadow: 0 0 0 3px rgb(37 99 235 / 0.1);
}

.tracking-input::placeholder {
    color: var(--gray-400);
    font-weight: 400;
}

.search-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-4) var(--spacing-8);
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.search-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.search-btn:active {
    transform: translateY(0);
}

.search-btn.loading .btn-text {
    opacity: 0;
}

.search-btn.loading .btn-loading {
    opacity: 1;
}

.btn-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.search-icon {
    width: 20px;
    height: 20px;
    stroke-width: 2;
}

/* ===================================
   FEATURES GRID
   =================================== */

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-6);
    margin-top: var(--spacing-8);
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-4);
    padding: var(--spacing-6);
    background: var(--gray-50);
    border-radius: var(--border-radius-xl);
    transition: all var(--transition-normal);
    border: 1px solid var(--gray-100);
}

.feature-item:hover {
    background: white;
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.feature-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: var(--primary-color);
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.feature-icon svg {
    width: 24px;
    height: 24px;
    stroke-width: 2;
}

.feature-content h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin: 0 0 var(--spacing-2) 0;
    color: var(--gray-800);
}

.feature-content p {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    margin: 0;
    line-height: 1.5;
}

/* ===================================
   RESULTS SECTION
   =================================== */

.results-section {
    padding: var(--spacing-16) 0;
}

.results-section .container > * + * {
    margin-top: var(--spacing-8);
}

/* Info Card */
.info-card {
    background: white;
    border-radius: var(--border-radius-2xl);
    padding: var(--spacing-8);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-100);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-6);
    padding-bottom: var(--spacing-4);
    border-bottom: 1px solid var(--gray-100);
}

.card-header h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin: 0;
    color: var(--gray-800);
}

.status-badge {
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-badge.collected { background: var(--info-color); color: white; }
.status-badge.transit { background: var(--warning-color); color: white; }
.status-badge.customs { background: var(--primary-color); color: white; }
.status-badge.delivery { background: var(--success-color); color: white; }
.status-badge.delivered { background: var(--success-color); color: white; }

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-6);
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.info-label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.info-value {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-800);
}

/* Progress Card */
.progress-card {
    background: white;
    border-radius: var(--border-radius-2xl);
    padding: var(--spacing-8);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-100);
}

.progress-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin: 0 0 var(--spacing-6) 0;
    color: var(--gray-800);
}

.progress-bar {
    height: 8px;
    background: var(--gray-200);
    border-radius: var(--border-radius);
    overflow: hidden;
    margin-bottom: var(--spacing-8);
    position: relative;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    border-radius: var(--border-radius);
    transition: width var(--transition-slow);
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.progress-steps {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-3);
    flex: 1;
    position: relative;
}

.step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 12px;
    left: 60%;
    right: -40%;
    height: 2px;
    background: var(--gray-200);
    z-index: 0;
}

.step.active:not(:last-child)::after {
    background: var(--primary-color);
}

.step-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--gray-200);
    position: relative;
    z-index: 1;
    transition: all var(--transition-normal);
}

.step.active .step-icon {
    background: var(--primary-color);
}

.step.completed .step-icon {
    background: var(--success-color);
}

.step.completed .step-icon::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.step-label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--gray-600);
    text-align: center;
}

.step.active .step-label {
    color: var(--primary-color);
    font-weight: 600;
}

.step.completed .step-label {
    color: var(--success-color);
    font-weight: 600;
}

/* Timeline Card */
.timeline-card {
    background: white;
    border-radius: var(--border-radius-2xl);
    padding: var(--spacing-8);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-100);
}

.timeline-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin: 0 0 var(--spacing-6) 0;
    color: var(--gray-800);
}

.timeline {
    position: relative;
    padding-left: var(--spacing-8);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 12px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gray-200);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-6);
    padding-left: var(--spacing-6);
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -18px;
    top: 6px;
    width: 12px;
    height: 12px;
    background: var(--gray-300);
    border: 3px solid white;
    border-radius: 50%;
    box-shadow: 0 0 0 2px var(--gray-300);
}

.timeline-item.current::before {
    background: var(--primary-color);
    box-shadow: 0 0 0 2px var(--primary-color);
    animation: pulse 2s infinite;
}

.timeline-item.completed::before {
    background: var(--success-color);
    box-shadow: 0 0 0 2px var(--success-color);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.timeline-content {
    background: var(--gray-50);
    padding: var(--spacing-4);
    border-radius: var(--border-radius-lg);
    border-left: 3px solid var(--gray-200);
}

.timeline-item.current .timeline-content {
    background: rgb(37 99 235 / 0.05);
    border-left-color: var(--primary-color);
}

.timeline-item.completed .timeline-content {
    background: rgb(16 185 129 / 0.05);
    border-left-color: var(--success-color);
}

.timeline-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin: 0 0 var(--spacing-2) 0;
    color: var(--gray-800);
}

.timeline-description {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    margin: 0 0 var(--spacing-2) 0;
    line-height: 1.5;
}

.timeline-date {
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ===================================
   HELP SECTION
   =================================== */

.help-section {
    padding: var(--spacing-16) 0;
    background: white;
}

.help-card {
    text-align: center;
    max-width: 500px;
    margin: 0 auto;
    padding: var(--spacing-10);
    background: var(--gray-50);
    border-radius: var(--border-radius-2xl);
    border: 1px solid var(--gray-100);
}

.help-card h3 {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    margin: 0 0 var(--spacing-4) 0;
    color: var(--gray-800);
}

.help-card p {
    font-size: var(--font-size-lg);
    color: var(--gray-600);
    margin: 0 0 var(--spacing-8) 0;
    line-height: 1.6;
}

.contact-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-4) var(--spacing-8);
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius-lg);
    font-size: var(--font-size-lg);
    font-weight: 600;
    transition: all var(--transition-normal);
}

.contact-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    text-decoration: none;
    color: white;
}

.contact-btn svg {
    width: 20px;
    height: 20px;
    stroke-width: 2;
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-4);
    }
    
    .alfax-process-hero h1 {
        font-size: 2.5em;
    }
    
    .alfax-process-hero p {
        font-size: 1.1em;
    }
    
    .alfax-process-stats {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .alfax-process-header {
        padding: 40px 0 60px;
        margin-bottom: 40px;
    }
    
    .search-section {
        padding: var(--spacing-12) 0;
        margin-top: calc(-1 * var(--spacing-8));
    }
    
    .search-card {
        padding: var(--spacing-6);
    }
    
    .input-group {
        flex-direction: column;
        gap: var(--spacing-4);
    }
    
    .tracking-input {
        padding: var(--spacing-4);
        font-size: var(--font-size-base);
    }
    
    .search-btn {
        justify-content: center;
        padding: var(--spacing-4);
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-4);
    }
    
    .feature-item {
        padding: var(--spacing-4);
    }
    
    .results-section {
        padding: var(--spacing-12) 0;
    }
    
    .info-card,
    .progress-card,
    .timeline-card {
        padding: var(--spacing-6);
    }
    
    .card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-3);
    }
    
    .info-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-4);
    }
    
    .progress-steps {
        flex-wrap: wrap;
        gap: var(--spacing-4);
    }
    
    .step {
        flex: 0 0 calc(50% - var(--spacing-2));
    }
    
    .step:nth-child(odd):not(:last-child)::after {
        display: none;
    }
    
    .timeline {
        padding-left: var(--spacing-6);
    }
    
    .timeline-item {
        padding-left: var(--spacing-4);
    }
    
    .help-section {
        padding: var(--spacing-12) 0;
    }
    
    .help-card {
        padding: var(--spacing-6);
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: var(--font-size-2xl);
    }
    
    .search-card {
        padding: var(--spacing-4);
        margin: 0 var(--spacing-2);
    }
    
    .feature-item {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-3);
    }
    
    .progress-steps {
        flex-direction: column;
        align-items: stretch;
    }
    
    .step {
        flex-direction: row;
        justify-content: flex-start;
        text-align: left;
    }
    
    .step:not(:last-child)::after {
        display: none;
    }
}

/* ===================================
   ANIMATIONS ET ÉTATS
   =================================== */

.fade-in {
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.slide-up {
    animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* États de chargement */
.loading {
    pointer-events: none;
    opacity: 0.7;
}

.skeleton {
    background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-100) 50%, var(--gray-200) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Focus visible pour l'accessibilité */
.tracking-input:focus-visible,
.search-btn:focus-visible,
.contact-btn:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Amélioration du contraste pour l'accessibilité */
@media (prefers-contrast: high) {
    :root {
        --gray-400: #6b7280;
        --gray-500: #4b5563;
        --gray-600: #374151;
    }
}

/* Mode sombre (si supporté) */
@media (prefers-color-scheme: dark) {
    .tracking-page {
        background-color: var(--gray-900);
        color: var(--gray-100);
    }
    
    .search-card,
    .info-card,
    .progress-card,
    .timeline-card {
        background: var(--gray-800);
        border-color: var(--gray-700);
    }
    
    .tracking-input {
        background: var(--gray-700);
        border-color: var(--gray-600);
        color: var(--gray-100);
    }
    
    .tracking-input:focus {
        background: var(--gray-800);
    }
}