/* Variables - Thème Sakura Dark */
:root {
    --bg-primary: #1a1a1f;
    --bg-secondary: #242429;
    --bg-tertiary: #2d2d33;
    --bg-card: #28282e;
    
    --text-primary: #f5f0f3;
    --text-secondary: #c9b8c4;
    --text-muted: #8a7a85;
    
    --sakura-light: #ffd4e5;
    --sakura: #ffb3d1;
    --sakura-medium: #e899b8;
    --sakura-dark: #d47a9e;
    --sakura-deep: #b85c7f;
    
    --accent: #ffb3d1;
    --accent-hover: #ffc9de;
    --accent-dark: #d47a9e;
    
    --success: #a8d5a2;
    --success-bg: rgba(168, 213, 162, 0.1);
    --error: #e89898;
    --error-bg: rgba(232, 152, 152, 0.1);
    
    --border: #3d3d44;
    --border-light: #4a4a52;
    
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.4);
    
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
    
    --transition: all 0.3s ease;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
}

body {
    font-family: 'Nunito', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.login-container {
    justify-content: center;
    align-items: center;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

header h1 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--sakura);
}

nav {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
}

.btn-primary {
    background: linear-gradient(135deg, var(--sakura-medium), var(--sakura-dark));
    color: var(--bg-primary);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--sakura), var(--sakura-medium));
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

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

.btn-secondary:hover {
    background: var(--border);
    border-color: var(--sakura-dark);
}

.btn-download {
    background: linear-gradient(135deg, var(--sakura), var(--sakura-medium));
    color: var(--bg-primary);
    width: 100%;
    margin-top: 1rem;
}

.btn-download:hover {
    background: linear-gradient(135deg, var(--sakura-light), var(--sakura));
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255, 179, 209, 0.3);
}

.btn-admin {
    background: var(--bg-tertiary);
    color: var(--sakura);
    border: 1px solid var(--sakura-dark);
}

.btn-admin:hover {
    background: var(--sakura-deep);
    color: var(--text-primary);
}

.btn-logout {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border);
}

.btn-logout:hover {
    background: var(--error-bg);
    color: var(--error);
    border-color: var(--error);
}

.btn-danger {
    background: var(--error-bg);
    color: var(--error);
    border: 1px solid transparent;
}

.btn-danger:hover {
    background: var(--error);
    color: var(--bg-primary);
}

.btn-small {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
}

.btn-full {
    width: 100%;
}

/* Cards */
.model-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.model-card:hover {
    border-color: var(--sakura-dark);
    box-shadow: var(--shadow);
}

.model-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
    gap: 1rem;
}

.model-header h2 {
    font-size: 1.3rem;
    color: var(--text-primary);
}

.version-badge {
    background: linear-gradient(135deg, var(--sakura-medium), var(--sakura-dark));
    color: var(--bg-primary);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    white-space: nowrap;
}

.badge-latest {
    background: linear-gradient(135deg, var(--sakura), var(--sakura-medium));
}

.model-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.model-info {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.info-item svg {
    color: var(--sakura);
}

.no-version {
    color: var(--text-muted);
    font-style: italic;
}

/* Grid */
.models-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

/* Login */
.login-box {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    width: 100%;
    max-width: 420px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

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

.login-header h1 {
    font-size: 1.8rem;
    color: var(--sakura);
    margin-bottom: 0.5rem;
}

.login-header p {
    color: var(--text-secondary);
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

/* Forms */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="email"],
.form-group select,
.form-group textarea {
    padding: 0.875rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--sakura);
    box-shadow: 0 0 0 3px rgba(255, 179, 209, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group input[type="file"] {
    padding: 0.75rem;
    cursor: pointer;
}

.form-group small {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    padding: 0.5rem 0;
}

.radio-label input[type="radio"] {
    accent-color: var(--sakura);
    width: 18px;
    height: 18px;
}

.radio-label span {
    color: var(--text-secondary);
}

/* Alerts */
.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.alert-error {
    background: var(--error-bg);
    color: var(--error);
    border: 1px solid var(--error);
}

.alert-success {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid var(--success);
}

/* Admin Section */
.admin-section {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border);
}

.admin-section h2 {
    font-size: 1.2rem;
    color: var(--sakura);
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border);
}

.admin-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.model-admin-card {
    background: var(--bg-secondary);
    border-radius: var(--radius);
    padding: 1.25rem;
    margin-bottom: 1rem;
    border: 1px solid var(--border);
}

.model-admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.model-admin-header h3 {
    font-size: 1.1rem;
    color: var(--text-primary);
}

.inline-form {
    display: inline;
}

/* Tables */
.versions-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.versions-table th,
.versions-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.versions-table th {
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.versions-table td {
    color: var(--text-secondary);
}

.versions-table tr:last-child td {
    border-bottom: none;
}

.versions-table tr:hover td {
    background: var(--bg-tertiary);
}

/* Versions List */
.versions-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.version-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 1.5rem;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.version-card:hover {
    border-color: var(--sakura-dark);
}

.version-card.latest {
    border-color: var(--sakura);
    background: linear-gradient(135deg, var(--bg-card), rgba(255, 179, 209, 0.05));
}

.version-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.version-date {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.version-info {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.model-full-description {
    background: var(--bg-card);
    padding: 1.25rem;
    border-radius: var(--radius);
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    border: 1px solid var(--border);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
}

.empty-state p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

/* Footer */
footer {
    margin-top: auto;
    padding-top: 2rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Main */
main {
    flex: 1;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    nav {
        width: 100%;
    }
    
    .btn {
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
    }
    
    .models-grid {
        grid-template-columns: 1fr;
    }
    
    .versions-table {
        font-size: 0.8rem;
    }
    
    .versions-table th,
    .versions-table td {
        padding: 0.5rem;
    }
    
    .login-box {
        padding: 1.5rem;
        margin: 1rem;
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--sakura-dark);
}

/* Selection */
::selection {
    background: var(--sakura);
    color: var(--bg-primary);
}

/* Progress Bar */
.progress-container {
    background: var(--bg-secondary);
    border-radius: var(--radius);
    padding: 1.25rem;
    margin: 1rem 0;
    border: 1px solid var(--border);
}

.progress-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
}

.progress-info span:first-child {
    color: var(--text-secondary);
}

.progress-info span:last-child {
    color: var(--sakura);
    font-weight: 600;
    font-size: 1.1rem;
}

.progress-bar {
    height: 12px;
    background: var(--bg-tertiary);
    border-radius: 6px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(135deg, var(--sakura), var(--sakura-medium));
    border-radius: 6px;
    transition: width 0.3s ease;
    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, 0.2),
        transparent
    );
    animation: shimmer 1.5s infinite;
}

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

.progress-details {
    display: flex;
    justify-content: space-between;
    margin-top: 0.75rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.upload-result {
    margin-top: 1rem;
}

/* Spinner Animation */
.spinner {
    animation: spin 1s linear infinite;
    margin-right: 0.5rem;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

#uploadBtnLoading {
    display: inline-flex;
    align-items: center;
}

.btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* Notification Banner */
.notification-banner {
    position: fixed;
    bottom: -150px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-card);
    border: 1px solid var(--sakura-dark);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    max-width: 450px;
    width: calc(100% - 2rem);
    box-shadow: 0 -4px 30px rgba(255, 179, 209, 0.2);
    z-index: 1000;
    transition: bottom 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.notification-banner.show {
    bottom: 1.5rem;
}

.notif-content {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
}

.notif-icon {
    font-size: 2rem;
    line-height: 1;
}

.notif-text strong {
    color: var(--sakura);
    display: block;
    margin-bottom: 0.25rem;
}

.notif-text p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0;
}

.notif-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
}

/* Toast */
.toast {
    position: fixed;
    bottom: -60px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-card);
    color: var(--text-primary);
    padding: 0.875rem 1.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--sakura);
    box-shadow: var(--shadow);
    z-index: 1001;
    transition: bottom 0.3s ease;
    font-weight: 500;
}

.toast.show {
    bottom: 1.5rem;
}

/* Notification Toggle Button */
#notif-toggle {
    background: var(--bg-tertiary);
    color: var(--text-muted);
    border: 1px solid var(--border);
    font-size: 0.85rem;
}

#notif-toggle.active {
    background: linear-gradient(135deg, var(--sakura-medium), var(--sakura-dark));
    color: var(--bg-primary);
    border-color: transparent;
}

#notif-toggle:hover {
    border-color: var(--sakura);
}

/* PWA Install Banner */
@media (display-mode: standalone) {
    .notification-banner {
        bottom: -150px !important;
    }
    
    .notification-banner.show {
        bottom: 1rem !important;
    }
}