/* Panel de Administración - Estilos */

:root {
    --bg-dark: #0a0e27;
    --bg-card: #151b3d;
    --bg-hover: #1e2749;
    --text-primary: #e4e4e7;
    --text-secondary: #a1a1aa;
    --accent-blue: #3b82f6;
    --accent-purple: #8b5cf6;
    --accent-green: #10b981;
    --accent-red: #ef4444;
    --accent-orange: #f59e0b;
    --border-color: #27303f;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

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

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
}

/* === LOGIN === */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--bg-dark) 0%, #0f1629 100%);
}

.login-box {
    background: var(--bg-card);
    padding: 3rem;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow);
}

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

.terminal-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.login-header h1 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.form-group textarea {
    min-height: 100px;
    resize: vertical;
    font-family: inherit;
}

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 1rem;
}

.btn-primary {
    background: var(--accent-blue);
    color: white;
    width: 100%;
}

.btn-primary:hover {
    background: #2563eb;
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--accent-blue);
    color: var(--accent-blue);
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.btn-secondary:hover {
    background: rgba(59, 130, 246, 0.1);
}

.error-message {
    color: var(--accent-red);
    font-size: 0.9rem;
    margin-top: 1rem;
    display: none;
}

.error-message.show {
    display: block;
}

.login-footer {
    margin-top: 1.5rem;
    text-align: center;
}

.login-footer a {
    color: var(--accent-blue);
    text-decoration: none;
    font-size: 0.9rem;
}

/* === DASHBOARD === */
.dashboard {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    background: var(--bg-card);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-header {
    padding: 2rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-header h2 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.sidebar-header p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-family: 'JetBrains Mono', monospace;
}

.sidebar-nav {
    flex: 1;
    padding: 1rem 0;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s;
    border-left: 3px solid transparent;
}

.nav-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-item.active {
    color: var(--accent-blue);
    background: var(--bg-hover);
    border-left-color: var(--accent-blue);
}

.nav-item .icon {
    font-size: 1.2rem;
}

.sidebar-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.btn-logout {
    width: 100%;
    padding: 0.75rem;
    background: var(--accent-red);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: background 0.3s;
}

.btn-logout:hover {
    background: #dc2626;
}

.main-content {
    flex: 1;
    margin-left: 260px;
    padding: 2rem;
    max-width: 1400px;
}

.content-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.content-header h1 {
    font-size: 2rem;
}

.view {
    display: none;
}

.view.active {
    display: block;
}

/* === STATS === */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-card);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-icon {
    font-size: 2.5rem;
}

.stat-info h3 {
    font-size: 2rem;
    color: var(--accent-blue);
    margin-bottom: 0.25rem;
}

.stat-info p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* === WIDGETS === */
.dashboard-widgets {
    display: grid;
    gap: 1.5rem;
}

.widget {
    background: var(--bg-card);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.widget h3 {
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.quick-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.quick-link {
    background: var(--bg-dark);
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    text-decoration: none;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: all 0.3s;
}

.quick-link:hover {
    border-color: var(--accent-blue);
    transform: translateY(-2px);
}

.quick-link span {
    font-size: 1.5rem;
}

/* === CALCULATORS === */
.calculators-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
}

.calculator-card {
    background: var(--bg-card);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.calculator-card h3 {
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
    color: var(--accent-blue);
}

.calc-inputs {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.calc-result {
    background: var(--bg-dark);
    padding: 1rem;
    border-radius: 8px;
    border-left: 3px solid var(--accent-green);
    margin-top: 1rem;
    font-family: 'JetBrains Mono', monospace;
}

.calc-result strong {
    color: var(--accent-green);
}

/* === ITEMS LIST === */
.view-header {
    margin-bottom: 1.5rem;
}

.items-list {
    display: grid;
    gap: 1rem;
}

.item-card {
    background: var(--bg-card);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.item-card:hover {
    border-color: var(--accent-blue);
}

.item-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 0.75rem;
}

.item-title {
    font-size: 1.1rem;
    color: var(--text-primary);
}

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

.btn-icon {
    padding: 0.5rem;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-icon:hover {
    border-color: var(--accent-blue);
}

.item-meta {
    display: flex;
    gap: 1rem;
    margin-top: 0.75rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
}

.badge-planning {
    background: rgba(59, 130, 246, 0.2);
    color: var(--accent-blue);
}

.badge-in-progress {
    background: rgba(245, 158, 11, 0.2);
    color: var(--accent-orange);
}

.badge-completed {
    background: rgba(16, 185, 129, 0.2);
    color: var(--accent-green);
}

.badge-high {
    background: rgba(239, 68, 68, 0.2);
    color: var(--accent-red);
}

.badge-medium {
    background: rgba(245, 158, 11, 0.2);
    color: var(--accent-orange);
}

.badge-low {
    background: rgba(59, 130, 246, 0.2);
    color: var(--accent-blue);
}

/* === TOOLS === */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.5rem;
}

.tool-card {
    background: var(--bg-card);
    padding: 2rem 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    text-align: center;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.3s;
}

.tool-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-blue);
}

.tool-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 1rem;
}

.tool-card h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.tool-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* === SETTINGS === */
.settings-section {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    max-width: 600px;
}

.settings-section h3 {
    margin-bottom: 1.5rem;
}

/* === MODAL === */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(5px);
}

.modal-content {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-content h2 {
    margin-bottom: 1.5rem;
    color: var(--accent-blue);
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        position: relative;
        height: auto;
    }

    .main-content {
        margin-left: 0;
        padding: 1rem;
    }

    .content-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }

    .stats-grid,
    .calculators-grid,
    .quick-links {
        grid-template-columns: 1fr;
    }
}