/**
 * PROTOATLAS - Styles principaux
 * ==============================
 * Utilisation des variables CSS pour le système de skins
 */

/* ===== RESET & BASE ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'JetBrains Mono', 'Fira Code', 'SF Mono', monospace;
    background-color: var(--pa-color-1);
    color: var(--pa-color-4);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 0.5em;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.1rem; }

p {
    margin-bottom: 1em;
}

a {
    color: var(--pa-color-3);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--pa-color-10);
}

/* ===== LAYOUT ===== */
.pa-app {
    display: flex;
    min-height: 100vh;
}

.pa-sidebar {
    width: 260px;
    background-color: var(--pa-color-2);
    border-right: 1px solid var(--pa-color-6);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 100;
    transition: transform 0.3s ease;
}

.pa-sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--pa-color-6);
}

.pa-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.pa-logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--pa-color-3), var(--pa-color-10));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
    color: var(--pa-color-1);
}

.pa-logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.pa-logo-subtitle {
    font-size: 0.7rem;
    color: var(--pa-color-5);
    margin-top: 2px;
}

.pa-nav {
    flex: 1;
    padding: 1rem 0;
    overflow-y: auto;
}

.pa-nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1.5rem;
    color: var(--pa-color-5);
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
}

.pa-nav-item:hover {
    background-color: var(--pa-color-1);
    color: var(--pa-color-4);
}

.pa-nav-item.active {
    background-color: var(--pa-color-1);
    color: var(--pa-color-3);
    border-left-color: var(--pa-color-3);
}

.pa-nav-item svg {
    width: 20px;
    height: 20px;
    opacity: 0.8;
}

.pa-sidebar-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--pa-color-6);
    font-size: 0.75rem;
    color: var(--pa-color-5);
}

.pa-main {
    flex: 1;
    margin-left: 260px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.pa-header {
    background-color: var(--pa-color-2);
    border-bottom: 1px solid var(--pa-color-6);
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 50;
}

.pa-header-title {
    font-size: 1.25rem;
    font-weight: 600;
}

.pa-header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.pa-content {
    flex: 1;
    padding: 2rem;
    max-width: 1600px;
}

/* ===== CARDS ===== */
.pa-card {
    background-color: var(--pa-color-2);
    border: 1px solid var(--pa-color-6);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

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

.pa-card-title {
    font-size: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pa-card-body {
    color: var(--pa-color-4);
}

/* ===== STATS GRID ===== */
.pa-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.pa-stat-card {
    background: linear-gradient(135deg, var(--pa-color-2), var(--pa-color-1));
    border: 1px solid var(--pa-color-6);
    border-radius: 12px;
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.pa-stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.pa-stat-icon.composants { background-color: rgba(52, 152, 219, 0.2); color: #3498db; }
.pa-stat-icon.systemes { background-color: rgba(231, 76, 60, 0.2); color: #e74c3c; }
.pa-stat-icon.documents { background-color: rgba(46, 204, 113, 0.2); color: #2ecc71; }
.pa-stat-icon.relations { background-color: rgba(155, 89, 182, 0.2); color: #9b59b6; }

.pa-stat-content h3 {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 0.25rem;
}

.pa-stat-content p {
    font-size: 0.8rem;
    color: var(--pa-color-5);
    margin: 0;
}

/* ===== BUTTONS ===== */
.pa-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    font-family: inherit;
}

.pa-btn-primary {
    background-color: var(--pa-color-3);
    color: var(--pa-color-1);
}

.pa-btn-primary:hover {
    filter: brightness(1.1);
    transform: translateY(-1px);
}

.pa-btn-secondary {
    background-color: var(--pa-color-6);
    color: var(--pa-color-4);
}

.pa-btn-secondary:hover {
    background-color: var(--pa-color-5);
}

.pa-btn-success {
    background-color: var(--pa-color-7);
    color: var(--pa-color-1);
}

.pa-btn-warning {
    background-color: var(--pa-color-8);
    color: var(--pa-color-1);
}

.pa-btn-danger {
    background-color: var(--pa-color-9);
    color: white;
}

.pa-btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
}

.pa-btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
}

/* ===== FORMS ===== */
.pa-form-group {
    margin-bottom: 1.25rem;
}

.pa-form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--pa-color-5);
}

.pa-form-input,
.pa-form-select,
.pa-form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    background-color: var(--pa-color-1);
    border: 1px solid var(--pa-color-6);
    border-radius: 8px;
    color: var(--pa-color-4);
    font-size: 0.9rem;
    font-family: inherit;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

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

.pa-form-textarea {
    min-height: 120px;
    resize: vertical;
}

.pa-form-select {
    cursor: pointer;
}

/* ===== TABLE ===== */
.pa-table-container {
    overflow-x: auto;
    border-radius: 8px;
    border: 1px solid var(--pa-color-6);
}

.pa-table {
    width: 100%;
    border-collapse: collapse;
}

.pa-table th,
.pa-table td {
    padding: 0.875rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--pa-color-6);
}

.pa-table th {
    background-color: var(--pa-color-1);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--pa-color-5);
}

.pa-table tr:hover {
    background-color: var(--pa-color-1);
}

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

/* ===== BADGES ===== */
.pa-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.625rem;
    border-radius: 9999px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pa-badge-brouillon { background-color: rgba(108, 117, 125, 0.2); color: #6c757d; }
.pa-badge-en_cours { background-color: rgba(52, 152, 219, 0.2); color: #3498db; }
.pa-badge-actif { background-color: rgba(46, 204, 113, 0.2); color: #2ecc71; }
.pa-badge-archive { background-color: rgba(155, 89, 182, 0.2); color: #9b59b6; }

/* ===== SYSTEM TAGS ===== */
.pa-system-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 500;
}

.pa-system-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

/* ===== MODAL ===== */
.pa-modal-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.pa-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.pa-modal {
    background-color: var(--pa-color-2);
    border-radius: 16px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.pa-modal-overlay.active .pa-modal {
    transform: translateY(0);
}

.pa-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--pa-color-6);
}

.pa-modal-title {
    font-size: 1.1rem;
    font-weight: 600;
}

.pa-modal-close {
    background: none;
    border: none;
    color: var(--pa-color-5);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 6px;
    transition: background-color 0.2s ease;
}

.pa-modal-close:hover {
    background-color: var(--pa-color-1);
    color: var(--pa-color-4);
}

.pa-modal-body {
    padding: 1.5rem;
}

.pa-modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 1.25rem 1.5rem;
    border-top: 1px solid var(--pa-color-6);
}

/* ===== TOAST NOTIFICATIONS ===== */
.pa-toast-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.pa-toast {
    padding: 1rem 1.25rem;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-width: 300px;
    animation: slideIn 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.pa-toast-success { background-color: var(--pa-color-7); color: white; }
.pa-toast-error { background-color: var(--pa-color-9); color: white; }
.pa-toast-warning { background-color: var(--pa-color-8); color: white; }
.pa-toast-info { background-color: var(--pa-color-3); color: white; }

/* ===== EMPTY STATE ===== */
.pa-empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--pa-color-5);
}

.pa-empty-state svg {
    width: 64px;
    height: 64px;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.pa-empty-state h3 {
    margin-bottom: 0.5rem;
    color: var(--pa-color-4);
}

/* ===== SEARCH ===== */
.pa-search {
    position: relative;
    max-width: 400px;
}

.pa-search-input {
    width: 100%;
    padding: 0.625rem 1rem 0.625rem 2.5rem;
    background-color: var(--pa-color-1);
    border: 1px solid var(--pa-color-6);
    border-radius: 8px;
    color: var(--pa-color-4);
    font-size: 0.875rem;
}

.pa-search-icon {
    position: absolute;
    left: 0.875rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--pa-color-5);
}

/* ===== COLOR PICKER ===== */
.pa-color-picker {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.pa-color-preview {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    border: 2px solid var(--pa-color-6);
    cursor: pointer;
}

.pa-color-input {
    flex: 1;
}

/* ===== SKIN PREVIEW ===== */
.pa-skin-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
}

.pa-skin-card {
    background-color: var(--pa-color-1);
    border: 2px solid var(--pa-color-6);
    border-radius: 12px;
    padding: 1rem;
    cursor: pointer;
    transition: border-color 0.2s ease;
}

.pa-skin-card:hover,
.pa-skin-card.active {
    border-color: var(--pa-color-3);
}

.pa-skin-colors {
    display: flex;
    gap: 4px;
    margin-bottom: 0.75rem;
}

.pa-skin-color {
    width: 24px;
    height: 24px;
    border-radius: 4px;
}

.pa-skin-name {
    font-weight: 600;
    font-size: 0.9rem;
}

.pa-skin-desc {
    font-size: 0.75rem;
    color: var(--pa-color-5);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .pa-sidebar {
        transform: translateX(-100%);
    }
    
    .pa-sidebar.open {
        transform: translateX(0);
    }
    
    .pa-main {
        margin-left: 0;
    }
    
    .pa-content {
        padding: 1rem;
    }
}

@media (max-width: 640px) {
    .pa-stats-grid {
        grid-template-columns: 1fr;
    }
    
    .pa-modal {
        width: 95%;
        margin: 1rem;
    }
    
    .pa-header {
        padding: 0.75rem 1rem;
    }
}

/* ===== GRAPH CANVAS (Vision OMNI) ===== */
.pa-graph-container {
    width: 100%;
    height: 600px;
    background-color: var(--pa-color-1);
    border: 1px solid var(--pa-color-6);
    border-radius: 12px;
    position: relative;
    overflow: hidden;
}

.pa-graph-controls {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    display: flex;
    gap: 0.5rem;
    z-index: 10;
}

.pa-graph-btn {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background-color: var(--pa-color-2);
    border: 1px solid var(--pa-color-6);
    color: var(--pa-color-4);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s ease;
}

.pa-graph-btn:hover {
    background-color: var(--pa-color-3);
    color: var(--pa-color-1);
}

/* ===== LOADER ===== */
.pa-loader {
    display: inline-block;
    width: 24px;
    height: 24px;
    border: 3px solid var(--pa-color-6);
    border-top-color: var(--pa-color-3);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ===== LOGIN PAGE ===== */
.pa-login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--pa-color-1), var(--pa-color-2));
}

.pa-login-box {
    width: 100%;
    max-width: 400px;
    padding: 2rem;
}

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

.pa-login-logo {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--pa-color-3), var(--pa-color-10));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: bold;
    color: var(--pa-color-1);
    margin: 0 auto 1rem;
}

.pa-login-title {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.pa-login-subtitle {
    color: var(--pa-color-5);
    font-size: 0.875rem;
}

.pa-login-form {
    background-color: var(--pa-color-2);
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid var(--pa-color-6);
}

.pa-login-error {
    background-color: rgba(231, 76, 60, 0.1);
    border: 1px solid var(--pa-color-9);
    color: var(--pa-color-9);
    padding: 0.75rem 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-size: 0.875rem;
}