@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700&display=swap');

:root {
    /* Couleurs de la charte Korrigeo */
    --korrigeo-primary: #0F5A63;
    --korrigeo-primary-hover: #0c474f;
    --korrigeo-secondary: #2F6EA6;
    --korrigeo-secondary-hover: #245682;
    
    --korrigeo-deep: #0F5A63;
    --korrigeo-kelp: #2F6EA6;
    --korrigeo-text: #002B30; /* Text Dark/Main */
    --korrigeo-muted: #A0B2B5; 
    
    --korrigeo-bg: #F7FAFB;
    --korrigeo-white: #FFFFFF; /* Fond Sidebar/Card */
    
    --korrigeo-border: #D1D9DC;
    --korrigeo-sand: #E6DCCF;
    --korrigeo-seafoam: #7FCED6;
    
    /* Couleurs Sémantiques / États Korrigeo */
    --korrigeo-success: #2F7D6C;
    --korrigeo-info: #2C8E9B;
    --korrigeo-warning: #E8B351;
    --korrigeo-danger: #C84B4B;
    --korrigeo-danger-hover: #a83f3f;

    /* Espacements et Bordures */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --shadow-sm: 0 2px 4px -1px rgba(0, 43, 48, 0.03);
    --shadow-md: 0 4px 6px -1px rgba(0, 43, 48, 0.05);

    --sidebar-width: 280px;
    --font-main: 'Montserrat', sans-serif;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--korrigeo-bg);
    color: var(--korrigeo-text);
    display: flex;
    min-height: 100vh;
    font-size: 14px;
    line-height: 1.5;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--korrigeo-text);
    margin-top: 0;
    font-weight: 700;
}

h2 { margin-bottom: 20px; font-size: 20px; }

a {
    color: var(--korrigeo-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--korrigeo-primary);
}

/* ==========================================================================
   LAYOUT : Sidebar Claire
   ========================================================================== */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--korrigeo-white);
    border-right: 1px solid var(--korrigeo-border);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    z-index: 100;
}

.sidebar-header {
    padding: 30px 25px;
    text-align: left;
    margin-bottom: 0;
    color: var(--korrigeo-primary);
    font-size: 22px;
    font-weight: 700;
}

.sidebar-nav {
    list-style: none;
    padding: 0 15px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 5px;
    margin-top: 20px;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 15px;
    color: var(--korrigeo-text);
    text-decoration: none;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.sidebar-nav a svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
    opacity: 0.7;
}

.sidebar-nav a:hover {
    background-color: #f1f5f7;
    color: var(--korrigeo-text);
}

.sidebar-nav a.active {
    background-color: var(--korrigeo-primary);
    color: #ffffff;
}

.sidebar-nav a.active svg {
    opacity: 1;
}

.sidebar-footer {
    padding: 20px 15px;
    border-top: 1px solid var(--korrigeo-border);
}

.sidebar-nav a[href*="logout"] {
    color: var(--korrigeo-danger);
}

.sidebar-nav a[href*="logout"]:hover {
    background-color: #fdf2f2;
}


/* Mobile toggle */
.menu-toggle {
    display: none;
    position: fixed;
    top: 15px;
    left: 15px;
    z-index: 101;
    background: var(--korrigeo-primary);
    color: #fff;
    border: none;
    padding: 10px 15px;
    border-radius: var(--radius-sm);
    cursor: pointer;
}

@media (max-width: 768px) {
    body {
        flex-direction: column;
    }
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        border-right: none;
        border-bottom: 1px solid var(--korrigeo-border);
        width: 100%;
        height: auto;
        position: relative;
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .menu-toggle {
        display: block;
    }
    .main-content {
        margin-left: 0 !important;
        padding: 20px !important;
    }
    .books-grid, .upload-area, .progress-container, #uploadResults, .admin-container {
        margin-left: 0 !important;
        margin-right: 0 !important;
    }
}

/* ==========================================================================
   LAYOUT : Main Content
   ========================================================================== */
.main-content {
    margin-left: var(--sidebar-width);
    flex-grow: 1;
    padding: 0;
    padding-bottom: 40px;
    display: flex;
    flex-direction: column;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.main-content h1 {
    font-size: 28px;
    font-weight: 700;
    margin: 0;
    margin-bottom: 8px;
    padding: 32px 32px 0 32px;
}

.main-content > p {
    color: var(--korrigeo-muted);
    font-size: 14px;
    font-style: italic;
    margin-bottom: 32px;
    padding: 0 32px;
}

.books-grid, .upload-area, .progress-container, #uploadResults, .admin-container {
    margin-left: 32px;
    margin-right: 32px;
    margin-bottom: 32px;
}

/* Buttons */
.btn {
    font-family: var(--font-main);
    font-weight: 500;
    border: none;
    border-radius: var(--radius-sm);
    padding: 10px 20px;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    text-decoration: none;
    gap: 8px;
}

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

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

.btn-success { background-color: var(--korrigeo-success); color: var(--korrigeo-white); }
.btn-success:hover { background-color: #246556; }

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

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--korrigeo-primary);
    color: var(--korrigeo-primary);
    padding: 9px 19px; /* to account for 1px border */
}
.btn-outline:hover {
    background-color: var(--korrigeo-bg);
    color: var(--korrigeo-primary);
}

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 12px;
    font-size: 12px;
    font-weight: 600;
    border-radius: 9999px;
    color: #ffffff;
}
.badge-primary { background-color: var(--korrigeo-primary); }
.badge-success { background-color: var(--korrigeo-success); }
.badge-info { background-color: var(--korrigeo-info); }
.badge-warning { background-color: var(--korrigeo-warning); color: var(--korrigeo-text); }
.badge-danger { background-color: var(--korrigeo-danger); }
.badge-secondary { background-color: var(--korrigeo-muted); }

/* Grid & Books */
.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 25px;
    padding: 0;
    margin-bottom: 32px;
}

.book-card {
    background: var(--korrigeo-white);
    padding: 15px;
    border-radius: var(--radius-md);
    border: 1px solid var(--korrigeo-border);
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    position: relative;
    transition: transform 0.2s, box-shadow 0.2s;
}

.book-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(0, 43, 48, 0.08);
}

.book-cover {
    width: 100%;
    aspect-ratio: 2 / 3;
    background-color: #f1f5f7;
    border-radius: var(--radius-sm);
    margin-bottom: 15px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    color: var(--korrigeo-muted);
    font-size: 14px;
    font-weight: 600;
}

.book-info {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.book-title {
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--korrigeo-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.book-author {
    color: var(--korrigeo-muted);
    font-size: 12px;
    font-style: italic;
    margin-bottom: 15px;
    flex: 1;
}

.book-actions {
    display: flex;
    gap: 10px;
    margin-top: auto;
}

.book-actions .btn {
    flex: 1;
    padding: 8px;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Pulse Ring pour Books */
.pulse-container {
    position: relative;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pulse-container .pulse-ring {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 2px solid var(--korrigeo-primary);
    opacity: 0.2;
}

.pulse-container .pulse-ring::after {
    content: '';
    position: absolute;
    top: -2px; left: -2px; right: -2px; bottom: -2px;
    border-radius: 50%;
    border: 2px solid var(--korrigeo-primary);
    animation: pulse-large 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.pulse-container::before {
    content: '';
    width: 12px;
    height: 12px;
    background-color: var(--korrigeo-primary);
    border-radius: 50%;
    position: absolute;
}

@keyframes pulse-large {
    0% { transform: scale(1); opacity: 0.5; }
    100% { transform: scale(1.5); opacity: 0; }
}

.processing-label {
    position: absolute;
    bottom: 10px;
    left: 10px;
    right: 10px;
    background-color: rgba(0, 43, 48, 0.75);
    backdrop-filter: blur(4px);
    color: var(--korrigeo-white);
    font-size: 11px;
    padding: 6px;
    border-radius: var(--radius-sm);
    text-align: center;
}

/* Upload Progress */
.upload-area {
    border: 2px dashed var(--korrigeo-border);
    padding: 60px 40px;
    text-align: center;
    border-radius: var(--radius-md);
    background: var(--korrigeo-white);
    cursor: pointer;
    margin-bottom: 25px;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.upload-area:hover, .upload-area.dragover {
    border-color: var(--korrigeo-primary);
    background-color: var(--korrigeo-bg);
}

.upload-area svg {
    width: 48px;
    height: 48px;
    fill: var(--korrigeo-primary);
    opacity: 0.8;
}

.upload-area h3 {
    color: var(--korrigeo-text);
    font-size: 18px;
    margin: 0;
    font-weight: 600;
}

.upload-area p {
    color: var(--korrigeo-muted);
    font-size: 14px;
    margin: 0;
}

.progress-container {
    display: none;
    margin-top: 20px;
    background: var(--korrigeo-white);
    padding: 20px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(47, 125, 108, 0.2);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 10px;
}

.progress-fill {
    height: 100%;
    background: var(--korrigeo-success);
    width: 0%;
    transition: width 0.3s;
    border-radius: 4px;
}

/* Formulaires */
.form-group { margin-bottom: 20px; text-align: left; }

.form-label, label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--korrigeo-text);
    font-size: 13px;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    font-family: var(--font-main);
    font-size: 14px;
    color: var(--korrigeo-text);
    background-color: var(--korrigeo-white);
    border: 1px solid var(--korrigeo-border);
    border-radius: var(--radius-sm);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--korrigeo-primary);
    box-shadow: 0 0 0 3px rgba(15, 90, 99, 0.15);
}

.form-control::placeholder { color: var(--korrigeo-muted); }

textarea.form-control { resize: vertical; min-height: 100px; }

.form-check {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
    cursor: pointer;
}
input[type="checkbox"], input[type="radio"] {
    accent-color: var(--korrigeo-primary);
    width: 16px;
    height: 16px;
    cursor: pointer;
}

/* Containers (Auth & Admin) */
.auth-container {
    width: 100%;
    max-width: 600px;
    margin: 60px auto;
    padding: 0 15px;
}

.admin-container {
    max-width: 900px;
}

.card {
    background: var(--korrigeo-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    padding: 25px;
    border: 1px solid var(--korrigeo-border);
    margin-bottom: 25px;
}

.card-title {
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--korrigeo-border);
    color: var(--korrigeo-text);
    font-size: 20px;
}

/* Alertes & Notifications avec Pulse Ring */
.alert {
    padding: 15px 20px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    border-left: 4px solid transparent;
    background-color: var(--korrigeo-white);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--korrigeo-border);
    font-size: 14px;
}

.alert .pulse-ring {
    position: relative;
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin-right: 15px;
    flex-shrink: 0;
}

.alert .pulse-ring::after {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    border-radius: 50%;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 currentcolor; opacity: 0.7; }
    70% { transform: scale(1); box-shadow: 0 0 0 10px transparent; opacity: 0; }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 transparent; opacity: 0; }
}

.alert-success { border-left-color: var(--korrigeo-success); }
.alert-success .pulse-ring { background-color: var(--korrigeo-success); color: var(--korrigeo-success); }
.alert-info { border-left-color: var(--korrigeo-info); }
.alert-info .pulse-ring { background-color: var(--korrigeo-info); color: var(--korrigeo-info); }
.alert-warning { border-left-color: var(--korrigeo-warning); }
.alert-warning .pulse-ring { background-color: var(--korrigeo-warning); color: var(--korrigeo-warning); }
.alert-danger { border-left-color: var(--korrigeo-danger); }
.alert-danger .pulse-ring { background-color: var(--korrigeo-danger); color: var(--korrigeo-danger); }

/* Tableaux */
.table-responsive {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
    background-color: var(--korrigeo-white);
}

th, td {
    padding: 14px 15px;
    text-align: left;
    border-bottom: 1px solid var(--korrigeo-border);
    font-size: 14px;
}

th {
    background-color: var(--korrigeo-bg);
    color: var(--korrigeo-text);
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

tr:hover td {
    background-color: rgba(15, 90, 99, 0.02);
}

.sidebar-header h2 {
    color: var(--korrigeo-primary);
    font-size: 22px;
    margin-bottom: 5px;
}
.sidebar-header .user-role {
    font-size: 13px;
    color: var(--korrigeo-muted);
}

.sidebar-footer a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 15px;
    color: var(--korrigeo-danger);
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: background 0.2s;
}

.sidebar-footer a svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.sidebar-footer a:hover {
    background-color: #fdf2f2;
}

.main-content > .alert {
    margin-left: 32px;
    margin-right: 32px;
}