:root {
    --bg-dark: #0f172a;
    --bg-panel: rgba(30, 41, 59, 0.7);
    --primary: #4f46e5;
    /* Indigo-600 */
    --primary-glow: rgba(79, 70, 229, 0.5);
    --accent: #818cf8;
    --text-main: #f1f5f9;
    --text-muted: #94a3b8;
    --border: rgba(148, 163, 184, 0.1);
    --glass-border: rgba(255, 255, 255, 0.1);
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --font-main: 'Outfit', sans-serif;
}

html {
    scroll-behavior: smooth;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-dark);
    /* Background handled by canvas */
    color: var(--text-main);
    height: 100vh;
    overflow: hidden;
}

#bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.app-container {
    display: flex;
    height: 100%;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background: var(--bg-panel);
    backdrop-filter: blur(12px);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
    z-index: 10;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.logo-img {
    width: 40px;
    height: 40px;
    object-fit: contain;
    filter: drop-shadow(0 0 8px var(--primary-glow));
}

.logo-area h1 {
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.5px;
}

.dot {
    color: var(--primary);
}

.main-nav {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.nav-divider {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin: 1.5rem 0 0.5rem 0.8rem;
    font-weight: 600;
    letter-spacing: 1px;
}

.nav-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 0.8rem 1rem;
    text-align: left;
    border-radius: 10px;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.nav-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
}

.nav-btn.active {
    background: linear-gradient(90deg, rgba(79, 70, 229, 0.15), transparent);
    color: var(--primary);
    border-left: 3px solid var(--primary);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    border-top: 1px solid var(--border);
    margin-top: auto;
}

.avatar {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    flex-shrink: 0;
}

.user-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    min-width: 0;
}

.user-info .name {
    font-weight: 500;
    font-size: 0.9rem;
}

.user-info .role {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.user-actions {
    display: flex;
    gap: 0.25rem;
}

.user-actions .icon-btn {
    padding: 0.5rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
    color: var(--text-muted);
}

.user-actions .icon-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
    color: var(--text-main);
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

.top-bar {
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    border-bottom: 1px solid var(--border);
    background: rgba(15, 23, 42, 0.8);
    /* Semi-transparent background for sticky header effect */
    backdrop-filter: blur(10px);
    z-index: 5;
}

.actions {
    display: flex;
    gap: 0.5rem;
}

.icon-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    color: var(--text-muted);
    width: 40px;
    height: 40px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-main);
}

#content-scroll-container {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
    scroll-behavior: smooth;
}

.view-section {
    min-height: 80vh;
    /* Each section takes up most of the screen */
    margin-bottom: 4rem;
    padding-top: 2rem;
    /* Spacing for scroll target */
}

.section-title {
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
    color: var(--text-main);
    border-bottom: 2px solid var(--primary);
    display: inline-block;
    padding-bottom: 0.5rem;
}

/* Glass Panels */
.glass-panel {
    background: rgba(30, 41, 59, 0.4);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

/* Tablas */
.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

th {
    text-align: left;
    padding: 1rem;
    color: var(--text-muted);
    font-weight: 500;
    border-bottom: 1px solid var(--border);
}

td {
    padding: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

/* Inputs & Buttons */
.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    transition: transform 0.2s;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-main);
    border: 1px solid var(--border);
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    cursor: pointer;
}

input[type="text"],
textarea,
input[type="number"],
input[type="file"] {
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: 0.8rem;
    border-radius: 8px;
    width: 100%;
    font-family: inherit;
}

input:focus {
    outline: none;
    border-color: var(--primary);
}

/* Upload Area */
.upload-area {
    border: 2px dashed var(--border);
    border-radius: 12px;
    padding: 3rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    background: rgba(255, 255, 255, 0.02);
}

.upload-area:hover {
    border-color: var(--primary);
    background: rgba(79, 70, 229, 0.05);
}

.upload-icon {
    font-size: 3rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

/* Status Badges */
.badge {
    padding: 0.25rem 0.6rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-new {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
}

.badge-update {
    background: rgba(79, 70, 229, 0.2);
    color: var(--primary);
}

.badge-low {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeIn 0.4s ease-out forwards;
}

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

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

.modal-content {
    background: #1e293b;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    width: 100%;
    max-width: 500px;
    transform: translateY(20px);
    transition: transform 0.3s;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    position: relative;
}

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

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.close-modal {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.5rem;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.3s;
}

.close-modal:hover {
    color: var(--text-main);
}
/* Mobile Sidebar & Responsive Styles */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-main);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    margin-right: 1rem;
}

@media (max-width: 968px) {
    .menu-toggle {
        display: block;
    }
    
    .sidebar {
        position: fixed;
        left: -280px;
        transition: left 0.3s ease;
        z-index: 1000;
        height: 100vh;
        box-shadow: 5px 0 15px rgba(0,0,0,0.5);
    }
    
    .sidebar.active {
        left: 0;
    }
    
    .main-content {
        margin-left: 0 !important;
        width: 100%;
    }

    .top-bar {
        padding: 1rem;
    }
}