/* ========================================
   BK AUTHENTIFICATION - FRONTEND STYLES
   Design Institution Nationale RDC
   ======================================== */

/* Variables CSS - Couleurs officielles RDC */
:root {
    /* Couleurs officielles RDC */
    --rdc-blue: #0066cc;
    --rdc-blue-dark: #004499;
    --rdc-yellow: #ffcc00;
    --rdc-yellow-dark: #e6b800;
    --rdc-red: #cc0000;
    --rdc-red-dark: #990000;
    --rdc-green: #009933;
    --rdc-green-dark: #006622;
    
    /* Couleurs neutres */
    --rdc-gray-50: #f8f9fa;
    --rdc-gray-100: #e9ecef;
    --rdc-gray-200: #dee2e6;
    --rdc-gray-300: #ced4da;
    --rdc-gray-400: #adb5bd;
    --rdc-gray-500: #6c757d;
    --rdc-gray-600: #495057;
    --rdc-gray-700: #343a40;
    --rdc-gray-800: #212529;
    --rdc-gray-900: #1a1d20;
    
    /* Couleurs de statut */
    --rdc-success: #28a745;
    --rdc-success-light: #d4edda;
    --rdc-success-dark: #1e7e34;
    --rdc-danger: #dc3545;
    --rdc-danger-light: #f8d7da;
    --rdc-danger-dark: #c82333;
    --rdc-warning: #ffc107;
    --rdc-warning-light: #fff3cd;
    --rdc-warning-dark: #e0a800;
    
    /* Couleurs de fond */
    --rdc-bg-primary: #ffffff;
    --rdc-bg-secondary: #f8f9fa;
    --rdc-bg-accent: #e3f2fd;
    
    /* Ombres et effets */
    --rdc-shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --rdc-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
    --rdc-shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --rdc-shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
    
    /* Bordures et rayons */
    --rdc-border-radius: 8px;
    --rdc-border-radius-lg: 12px;
    --rdc-border-radius-xl: 16px;
    
    /* Transitions */
    --rdc-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --rdc-transition-fast: all 0.15s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--rdc-gray-800);
    margin: 0;
    padding: 0;
}

/* Conteneurs principaux */
.bk-auth-verification-container,
.bk-auth-result-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
    background: #ffffff;
    position: relative;
}

.bk-auth-verification-container::before,
.bk-auth-result-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--rdc-blue) 0%, var(--rdc-yellow) 50%, var(--rdc-red) 100%);
    z-index: 10;
}

/* Wrapper principal */
.bk-auth-form-wrapper,
.bk-auth-result-wrapper {
    background: #ffffff;
    border-radius: var(--rdc-border-radius-xl);
    box-shadow: var(--rdc-shadow-xl);
    overflow: hidden;
    width: 100%;
    max-width: 600px;
    position: relative;
    border: 1px solid var(--rdc-gray-200);
}

/* En-tête avec style institutionnel */
.bk-auth-form-wrapper h2,
.bk-auth-result-wrapper h2 {
    background: linear-gradient(135deg, var(--rdc-blue) 0%, var(--rdc-blue-dark) 100%);
    color: white;
    margin: 0;
    padding: 2rem 2rem 1.5rem;
    font-size: 1.75rem;
    font-weight: 600;
    text-align: center;
    position: relative;
    letter-spacing: 0.5px;
}

.bk-auth-form-wrapper h2::before,
.bk-auth-result-wrapper h2::before {
    content: '🛡️';
    display: block;
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    opacity: 0.9;
}

.bk-auth-description {
    color: #000000;
    text-align: center;
    margin: 0;
    padding: 0 2rem 2rem;
    font-size: 1rem;
    line-height: 1.6;
    font-weight: 400;
}

/* Formulaire */
#bk-auth-verification-form {
    padding: 2rem;
}

.bk-auth-form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
    .bk-auth-form-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

.bk-auth-form-group {
    display: flex;
    flex-direction: column;
}

.bk-auth-form-group label {
    font-weight: 600;
    color: #000000;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
}

.bk-auth-form-group label::after {
    content: ' *';
    color: var(--rdc-danger);
    opacity: 0;
    transition: var(--rdc-transition-fast);
}

.bk-auth-form-group label[for="reference"]::after {
    opacity: 1;
}

.bk-auth-form-group input,
.bk-auth-form-group select {
    padding: 1rem 1.25rem;
    border: 2px solid var(--rdc-gray-200);
    border-radius: var(--rdc-border-radius);
    font-size: 1rem;
    line-height: 1.5;
    color: var(--rdc-gray-800);
    background: #ffffff;
    transition: var(--rdc-transition);
    width: 100%;
    font-weight: 500;
}

.bk-auth-form-group input:focus,
.bk-auth-form-group select:focus {
    outline: none;
    border-color: var(--rdc-blue);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
    transform: translateY(-1px);
}

.bk-auth-form-group input:hover,
.bk-auth-form-group select:hover {
    border-color: var(--rdc-gray-300);
    transform: translateY(-1px);
}

.bk-auth-form-group input::placeholder {
    color: var(--rdc-gray-400);
    font-style: italic;
}

/* Bouton de soumission */
.bk-auth-submit-group {
    grid-column: 1 / -1;
    margin-top: 2rem;
    text-align: center;
}

.bk-auth-submit-btn {
    background: linear-gradient(135deg, var(--rdc-blue) 0%, var(--rdc-blue-dark) 100%);
    color: white;
    border: none;
    padding: 1rem 3rem;
    border-radius: var(--rdc-border-radius-lg);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--rdc-transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    min-width: 200px;
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.bk-auth-submit-btn::before {
    content: '🔍';
    font-size: 1.2rem;
}

.bk-auth-submit-btn:hover {
    background: linear-gradient(135deg, var(--rdc-blue-dark) 0%, var(--rdc-blue) 100%);
    transform: translateY(-2px);
    box-shadow: var(--rdc-shadow-lg);
}

.bk-auth-submit-btn:active {
    transform: translateY(0);
}

.bk-auth-submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Spinner */
.bk-auth-spinner {
    display: inline-block;
    width: 1.5rem;
    height: 1.5rem;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top: 3px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-left: 0.5rem;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Résultats */
.bk-auth-result {
    margin-top: 2rem;
    padding: 0 2rem 2rem;
}

.bk-auth-success,
.bk-auth-error {
    position: relative;
    padding: 2.5rem 2rem;
    border-radius: var(--rdc-border-radius-lg);
    margin-bottom: 1.5rem;
    box-shadow: var(--rdc-shadow);
    border: 2px solid transparent;
    text-align: center;
}

.bk-auth-success {
    background: linear-gradient(135deg, var(--rdc-success-light) 0%, #e8f5e8 100%);
    border-color: var(--rdc-success);
}

.bk-auth-error {
    background: #8B0000;
    border-color: #8B0000;
    color: #ffffff;
}

/* Emojis centrés avec style institutionnel */
.bk-auth-success::before,
.bk-auth-error::before {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 2.5rem;
    background: #ffffff;
    border-radius: 50%;
    padding: 0.75rem;
    box-shadow: var(--rdc-shadow-lg);
    z-index: 10;
    border: 3px solid #ffffff;
}

.bk-auth-success::before {
    content: '✅';
    border-color: var(--rdc-success);
}

.bk-auth-error::before {
    content: '❌';
    border-color: #8B0000;
}

/* Titres des résultats */
.bk-auth-success h2,
.bk-auth-success h3,
.bk-auth-error h2,
.bk-auth-error h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 0 1rem;
    text-align: center;
    padding-top: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.bk-auth-success h2,
.bk-auth-success h3 {
    color: var(--rdc-gray-800);
}

.bk-auth-error h2,
.bk-auth-error h3 {
    color: #ffffff;
}

.bk-auth-success p,
.bk-auth-error p {
    margin: 0 0 1.5rem;
    text-align: center;
    font-size: 1rem;
    line-height: 1.6;
    font-weight: 500;
}

.bk-auth-success p {
    color: #000000;
}

.bk-auth-error p {
    color: #ffffff;
}

/* Détails du document */
.bk-auth-document-details {
    background: #ffffff;
    border-radius: var(--rdc-border-radius-lg);
    padding: 2rem;
    margin: 2rem 0;
    box-shadow: var(--rdc-shadow);
    border: 1px solid var(--rdc-gray-200);
}

.bk-auth-document-details h3,
.bk-auth-document-details h4 {
    color: var(--rdc-gray-800);
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0 0 1.5rem;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
}

.bk-auth-document-details h3::after,
.bk-auth-document-details h4::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--rdc-blue), var(--rdc-yellow));
    border-radius: 2px;
}

.bk-auth-details-table {
    width: 100%;
    border-collapse: collapse;
    margin: 0;
    background: #f8f9fa;
    border-radius: var(--rdc-border-radius);
    overflow: hidden;
}

.bk-auth-details-table tr {
    border-bottom: 1px solid var(--rdc-gray-200);
}

.bk-auth-details-table tr:last-child {
    border-bottom: none;
}

.bk-auth-details-table td {
    padding: 1rem 1.5rem;
    vertical-align: middle;
    font-size: 0.95rem;
}

.bk-auth-details-table td:first-child {
    font-weight: 700;
    color: var(--rdc-gray-700);
    width: 40%;
    background: #f8f9fa;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.85rem;
}

.bk-auth-details-table td:last-child {
    color: var(--rdc-gray-800);
    font-weight: 500;
}

/* Section signalement */
.bk-auth-report-section {
    text-align: center;
    margin: 2rem 0;
}

.bk-auth-report-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    border-radius: var(--rdc-border-radius-lg);
    font-weight: 600;
    text-decoration: none;
    transition: var(--rdc-transition);
    font-size: 0.95rem;
    line-height: 1.5;
    border: 2px solid transparent;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
}

.bk-auth-report-btn::before {
    content: '⚠️';
    margin-right: 0.5rem;
    font-size: 1.1rem;
}

.bk-auth-success .bk-auth-report-btn {
    background: linear-gradient(135deg, var(--rdc-warning) 0%, var(--rdc-warning-dark) 100%);
    color: var(--rdc-gray-800);
    border-color: var(--rdc-warning-dark);
}

.bk-auth-success .bk-auth-report-btn:hover {
    background: linear-gradient(135deg, var(--rdc-warning-dark) 0%, var(--rdc-warning) 100%);
    transform: translateY(-2px);
    box-shadow: var(--rdc-shadow-lg);
}

.bk-auth-error .bk-auth-report-btn {
    background: #B22222;
    color: white;
    border-color: #B22222;
}

.bk-auth-error .bk-auth-report-btn:hover {
    background: #8B0000;
    border-color: #8B0000;
    transform: translateY(-2px);
    box-shadow: var(--rdc-shadow-lg);
}

/* Actions */
.bk-auth-actions {
    text-align: center;
    margin-top: 2rem;
    padding: 0 2rem 2rem;
}

.bk-auth-back-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 3rem;
    background: linear-gradient(135deg, var(--rdc-blue) 0%, var(--rdc-blue-dark) 100%);
    color: white;
    text-decoration: none;
    border-radius: var(--rdc-border-radius-lg);
    font-weight: 600;
    transition: var(--rdc-transition);
    font-size: 1.1rem;
    line-height: 1.5;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: 2px solid transparent;
    cursor: pointer;
}

.bk-auth-back-btn::before {
    content: '🔄';
    margin-right: 0.75rem;
    font-size: 1.2rem;
}

.bk-auth-back-btn:hover {
    background: linear-gradient(135deg, var(--rdc-blue-dark) 0%, var(--rdc-blue) 100%);
    transform: translateY(-2px);
    box-shadow: var(--rdc-shadow-lg);
}

/* Responsive */
@media (max-width: 768px) {
    .bk-auth-verification-container,
    .bk-auth-result-container {
        padding: 1rem 0.5rem;
    }
    
    .bk-auth-form-wrapper h2,
    .bk-auth-result-wrapper h2 {
        font-size: 1.5rem;
        padding: 1.5rem 1rem 1rem;
    }
    
    .bk-auth-form-wrapper h2::before,
    .bk-auth-result-wrapper h2::before {
        font-size: 2rem;
    }
    
    #bk-auth-verification-form {
        padding: 1.5rem;
    }
    
    .bk-auth-form-row {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .bk-auth-success,
    .bk-auth-error {
        padding: 2rem 1.5rem;
    }
    
    .bk-auth-document-details {
        padding: 1.5rem;
    }
    
    .bk-auth-details-table td {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }
    
    .bk-auth-details-table td:first-child {
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .bk-auth-form-wrapper,
    .bk-auth-result-wrapper {
        margin: 0;
        border-radius: 0;
        min-height: 100vh;
    }
    
    .bk-auth-verification-container,
    .bk-auth-result-container {
        padding: 0;
    }
    
    .bk-auth-form-wrapper h2,
    .bk-auth-result-wrapper h2 {
        border-radius: 0;
    }
}

/* Animations */
.bk-auth-form-wrapper,
.bk-auth-result-wrapper {
    animation: slideInUp 0.6s ease-out;
}

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

.bk-auth-success,
.bk-auth-error {
    animation: fadeInScale 0.5s ease-out;
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* États de focus améliorés */
.bk-auth-form-group input:focus,
.bk-auth-form-group select:focus {
    outline: none;
    border-color: var(--rdc-blue);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.15);
}

/* Accessibilité */
@media (prefers-reduced-motion: reduce) {
    .bk-auth-form-wrapper,
    .bk-auth-result-wrapper,
    .bk-auth-submit-btn,
    .bk-auth-report-btn,
    .bk-auth-back-btn,
    .bk-auth-success,
    .bk-auth-error {
        animation: none;
        transition: none;
    }
}

/* Mode sombre (si supporté) */
@media (prefers-color-scheme: dark) {
    :root {
        --rdc-bg-primary: #1a1d20;
        --rdc-bg-secondary: #212529;
        --rdc-bg-accent: #2c3e50;
        --rdc-gray-50: #343a40;
        --rdc-gray-100: #495057;
        --rdc-gray-200: #6c757d;
        --rdc-gray-300: #adb5bd;
        --rdc-gray-400: #ced4da;
        --rdc-gray-500: #dee2e6;
        --rdc-gray-600: #e9ecef;
        --rdc-gray-700: #f8f9fa;
        --rdc-gray-800: #ffffff;
        --rdc-gray-900: #ffffff;
    }
    
    .bk-auth-form-group input,
    .bk-auth-form-group select {
        background: var(--rdc-gray-100);
        color: var(--rdc-gray-800);
        border-color: var(--rdc-gray-300);
    }
    
    .bk-auth-document-details {
        background: var(--rdc-gray-100);
        border-color: var(--rdc-gray-300);
    }
    
    .bk-auth-details-table {
        background: var(--rdc-gray-100);
    }
    
    .bk-auth-details-table td:first-child {
        background: var(--rdc-gray-50);
    }
}