/* Import standard modern font */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap');

:root {
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --accent: #8b5cf6;
    --accent-hover: #7c3aed;
    --success: #10b981;
    --danger: #ef4444;
    --border: #cbd5e1;
    --glass-bg: rgba(255, 255, 255, 0.75);
    --glass-border: rgba(139, 92, 246, 0.12);
}

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Outfit', sans-serif;
    min-height: 100/vh;
    display: flex;
    flex-direction: column;
}

header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

h1,
h2,
h3 {
    font-weight: 600;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #8b5cf6, #ec4899, #f59e0b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1.5rem;
    width: 100%;
    flex: 1;
}

/* Dashboard Layout */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
}

@media (max-width: 900px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

.card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
    margin-bottom: 2rem;
}

.card h2 {
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0.75rem;
    color: var(--text-primary);
}

/* Forms */
.form-group {
    margin-bottom: 1.25rem;
}

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

.form-control {
    width: 100%;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    transition: all 0.2s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.form-row {
    display: flex;
    gap: 1rem;
}

.form-row .form-group {
    flex: 1;
}

.toggle-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    user-select: none;
    cursor: pointer;
}

.toggle-checkbox {
    display: none;
}

.toggle-switch {
    width: 44px;
    height: 24px;
    background-color: #475569;
    /* Claramente visible en estado inactivo */
    border-radius: 12px;
    position: relative;
    transition: background-color 0.2s;
    flex-shrink: 0;
    /* Evita que el contenedor flex colapse su ancho a 0 */
}

.toggle-switch::after {
    content: '';
    width: 18px;
    height: 18px;
    background-color: white;
    border-radius: 50%;
    position: absolute;
    top: 3px;
    left: 3px;
    transition: transform 0.2s;
}

.toggle-checkbox:checked+.toggle-switch {
    background-color: var(--success);
}

.toggle-checkbox:checked+.toggle-switch::after {
    transform: translateX(20px);
}

/* Upload Area */
.upload-zone {
    border: 2px dashed var(--border);
    border-radius: 0.75rem;
    padding: 2.5rem 1.5rem;
    text-align: center;
    cursor: pointer;
    background: var(--bg-tertiary);
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--accent);
    background: rgba(99, 102, 241, 0.05);
}

.upload-icon {
    font-size: 2.5rem;
    color: var(--accent);
}

.progress-container {
    width: 100%;
    background-color: var(--border);
    border-radius: 9999px;
    height: 8px;
    margin-top: 1rem;
    overflow: hidden;
    display: none;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), #c084fc);
    width: 0%;
    transition: width 0.1s linear;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: 0.5rem;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
    gap: 0.5rem;
    text-decoration: none;
}

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

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

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

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

.btn-disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

.book-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    padding: 1.25rem;
    display: flex;
    gap: 1.25rem;
    align-items: center;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.book-item:hover {
    transform: translateY(-2px);
    border-color: rgba(99, 102, 241, 0.4);
}

.book-thumbnail {
    width: 70px;
    height: 95px;
    background-color: var(--bg-tertiary);
    border-radius: 0.375rem;
    object-fit: cover;
    border: 1px solid var(--border);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.book-info {
    flex: 1;
    min-width: 0;
}

.book-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.book-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    white-space: normal;
    word-break: break-word;
}

.book-meta {
    font-size: 0.75rem;
    color: var(--text-secondary);
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.book-meta span {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.book-actions {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* Modal dialog */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    z-index: 1000;
}

.modal.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 1rem;
    width: 90%;
    max-width: 600px;
    padding: 2rem;
    position: relative;
    transform: scale(0.9);
    transition: transform 0.3s ease;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
}

.modal.active .modal-content {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.modal-close {
    font-size: 1.5rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
}

.modal-close:hover {
    color: var(--text-primary);
}

.code-box {
    background-color: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    padding: 1rem;
    font-family: monospace;
    font-size: 0.85rem;
    color: var(--accent);
    overflow-x: auto;
    margin: 1rem 0;
    user-select: all;
}

/* Stats UI */
.stat-box {
    background-color: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
    display: flex;
    justify-content: space-between;
}

.stat-value {
    font-weight: 700;
    color: var(--accent);
}

@keyframes floatSpaceHeader {
    0% {
        transform: translateY(0px) rotate(0deg);
        filter: drop-shadow(0 2px 4px rgba(139, 92, 246, 0.1));
    }

    50% {
        transform: translateY(-4px) rotate(0.6deg);
        filter: drop-shadow(0 6px 10px rgba(139, 92, 246, 0.18));
    }

    100% {
        transform: translateY(0px) rotate(0deg);
        filter: drop-shadow(0 2px 4px rgba(139, 92, 246, 0.1));
    }
}

.floating-logo-header {
    height: 50px;
    width: auto;
    object-fit: contain;
    animation: floatSpaceHeader 5s ease-in-out infinite;
}