:root {
    --bg-primary: #090d16;
    --bg-secondary: #111827;
    --bg-card: #1f2937;
    --bg-card-hover: #2d3748;
    --border-color: #374151;
    --text-primary: #f9fafb;
    --text-secondary: #9ca3af;
    --accent-color: #6366f1;
    --accent-glow: rgba(99, 102, 241, 0.15);
    --accent-hover: #4f46e5;
    --success-color: #10b981;
    --success-glow: rgba(16, 185, 129, 0.2);
    --error-color: #ef4444;
    --error-glow: rgba(239, 68, 68, 0.2);
    --warning-color: #f59e0b;
    --paused-color: #6b7280;
    --paused-glow: rgba(107, 114, 128, 0.2);
    --font-main: 'Outfit', sans-serif;
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Ambient background glow */
.ambient-light {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.08) 0%, rgba(0, 0, 0, 0) 70%);
    top: -200px;
    right: -100px;
    z-index: -1;
    pointer-events: none;
}

.ambient-light-left {
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.04) 0%, rgba(0, 0, 0, 0) 70%);
    bottom: -100px;
    left: -200px;
    z-index: -1;
    pointer-events: none;
}

header {
    background-color: rgba(17, 24, 39, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 50;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.logo-icon {
    width: 2.25rem;
    height: 2.25rem;
    background: linear-gradient(135deg, var(--accent-color), #8b5cf6);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
    box-shadow: 0 0 15px rgba(99, 102, 241, 0.4);
}

.logo-title {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    background: linear-gradient(to right, #ffffff, #9ca3af);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.btn {
    font-family: var(--font-main);
    font-weight: 500;
    font-size: 0.875rem;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    border: 1px solid transparent;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-smooth);
}

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

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-secondary {
    background-color: transparent;
    border-color: var(--border-color);
    color: var(--text-primary);
}

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

.btn-danger {
    background-color: rgba(239, 68, 68, 0.15);
    border-color: rgba(239, 68, 68, 0.3);
    color: var(--error-color);
}

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

.btn-icon {
    padding: 0.5rem;
    border-radius: 0.375rem;
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
}

.btn-icon:hover {
    background: var(--bg-card);
    color: var(--text-primary);
}

main {
    flex: 1;
    padding: 2rem;
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    position: relative;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1.25rem;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    transition: var(--transition-smooth);
}

.stat-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.stat-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    font-weight: 600;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.stat-desc {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.stat-indicator {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 50%;
}

/* Filter Controls */
.control-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
    background-color: var(--bg-secondary);
    padding: 1rem;
    border-radius: 0.75rem;
    border: 1px solid var(--border-color);
}

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

.filter-btn {
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-secondary);
    padding: 0.375rem 0.75rem;
    border-radius: 0.25rem;
    font-family: var(--font-main);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-smooth);
}

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

.filter-btn.active {
    background-color: var(--accent-glow);
    border-color: rgba(99, 102, 241, 0.3);
    color: var(--accent-color);
}

.search-box {
    position: relative;
    flex-grow: 1;
    max-width: 350px;
}

.search-input {
    width: 100%;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 0.375rem;
    padding: 0.5rem 1rem 0.5rem 2.25rem;
    font-family: var(--font-main);
    font-size: 0.875rem;
    outline: none;
    transition: var(--transition-smooth);
}

.search-input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px var(--accent-glow);
}

.search-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    pointer-events: none;
    width: 1rem;
    height: 1rem;
}

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

.monitor-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1.25rem;
    transition: var(--transition-smooth);
    cursor: pointer;
    overflow: hidden;
}

.monitor-card:hover {
    border-color: rgba(99, 102, 241, 0.5);
    background-color: var(--bg-card-hover);
}

.monitor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.monitor-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.status-dot {
    width: 0.75rem;
    height: 0.75rem;
    border-radius: 50%;
    position: relative;
    flex-shrink: 0;
}

.status-dot.online {
    background-color: var(--success-color);
    box-shadow: 0 0 8px var(--success-color);
}
.status-dot.online::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: var(--success-color);
    opacity: 0.4;
    animation: pulse-ring 1.5s infinite;
}

.status-dot.offline {
    background-color: var(--error-color);
    box-shadow: 0 0 8px var(--error-color);
}
.status-dot.offline::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: var(--error-color);
    opacity: 0.4;
    animation: pulse-ring 1.5s infinite;
}

.status-dot.paused {
    background-color: var(--paused-color);
}

.status-dot.unknown {
    background-color: var(--warning-color);
    box-shadow: 0 0 8px var(--warning-color);
}

@keyframes pulse-ring {
    0% { transform: scale(1); opacity: 0.4; }
    100% { transform: scale(2.5); opacity: 0; }
}

.monitor-title-group {
    display: flex;
    flex-direction: column;
}

.monitor-name {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
}

.monitor-url {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-smooth);
    word-break: break-all;
}

.monitor-url:hover {
    color: var(--accent-color);
}

.monitor-quick-stats {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.quick-stat-item {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.quick-stat-label {
    font-size: 0.7rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.quick-stat-val {
    font-size: 0.9rem;
    font-weight: 600;
}

.badge {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    text-transform: uppercase;
}

.badge-success { background-color: rgba(16, 185, 129, 0.15); color: var(--success-color); border: 1px solid rgba(16, 185, 129, 0.2); }
.badge-danger { background-color: rgba(239, 68, 68, 0.15); color: var(--error-color); border: 1px solid rgba(239, 68, 68, 0.2); }
.badge-paused { background-color: rgba(107, 114, 128, 0.15); color: var(--paused-color); border: 1px solid rgba(107, 114, 128, 0.2); }
.badge-warning { background-color: rgba(245, 158, 11, 0.15); color: var(--warning-color); border: 1px solid rgba(245, 158, 11, 0.2); }

.site-badges-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

/* Domain expiry indicator */
.expiry-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    margin-top: 0.35rem;
}
.expiry-info svg { flex-shrink: 0; }
.expiry-ok     { color: var(--success-color); }
.expiry-warn   { color: var(--warning-color); }
.expiry-danger { color: var(--error-color); }
.expiry-expired { color: var(--error-color); font-weight: 700; animation: expiry-blink 1.2s infinite; }
@keyframes expiry-blink {
    0%, 100% { opacity: 1; }
    50%      { opacity: 0.4; }
}

/* Uptime Bar (last 30 checks) */
.history-grid-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
    background-color: rgba(0,0,0,0.15);
    padding: 0.5rem;
    border-radius: 0.375rem;
}

.history-grid-label {
    font-size: 0.7rem;
    color: var(--text-secondary);
    min-width: 60px;
}

.history-grid {
    display: flex;
    gap: 3px;
    flex-grow: 1;
    height: 18px;
}

.history-block {
    flex-grow: 1;
    height: 100%;
    border-radius: 2px;
    position: relative;
    cursor: pointer;
}

.history-block.ok { background-color: var(--success-color); opacity: 0.85; }
.history-block.ok:hover { opacity: 1; box-shadow: 0 0 6px var(--success-color); }

.history-block.error { background-color: var(--error-color); }
.history-block.error:hover { box-shadow: 0 0 6px var(--error-color); }

.history-block.paused { background-color: var(--paused-color); opacity: 0.5; }

.history-block.empty { background-color: rgba(255,255,255,0.05); }

/* Tooltip style */
.tooltip {
    position: absolute;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.5rem;
    border-radius: 0.375rem;
    font-size: 0.75rem;
    pointer-events: none;
    z-index: 100;
    display: none;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
    white-space: nowrap;
}

/* Expandable section */
.monitor-details {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out;
    border-top: 0px solid transparent;
    margin-top: 0;
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media (min-width: 800px) {
    .monitor-details {
        grid-template-columns: 3fr 2fr;
    }
}

.monitor-card.expanded {
    border-color: var(--accent-color);
    background-color: rgba(17, 24, 39, 0.4);
}

.monitor-card.expanded .monitor-details {
    max-height: 1000px;
    border-top: 1px solid var(--border-color);
    margin-top: 1.25rem;
    padding-top: 1.25rem;
}

.detail-panel {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.detail-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chart-wrapper {
    background-color: rgba(0,0,0,0.2);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 0.5rem;
    padding: 1rem;
    height: 220px;
    position: relative;
}

.pages-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-height: 220px;
    overflow-y: auto;
    padding-right: 0.25rem;
}

.page-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: rgba(0,0,0,0.15);
    padding: 0.5rem 0.75rem;
    border-radius: 0.375rem;
    border-left: 3px solid transparent;
}

.page-item.ok { border-left-color: var(--success-color); }
.page-item.error { border-left-color: var(--error-color); }
.page-item.paused { border-left-color: var(--paused-color); }

.page-path {
    font-size: 0.8rem;
    font-family: monospace;
    word-break: break-all;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.page-metrics {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.75rem;
}

.card-actions {
    grid-column: 1 / -1;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid rgba(255,255,255,0.05);
    padding-top: 1rem;
}

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

/* Modal Settings */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-smooth);
}

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

.modal-container {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    width: 100%;
    max-width: 500px;
    padding: 2rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    transform: scale(0.95);
    transition: var(--transition-smooth);
    max-height: 90vh;
    overflow-y: auto;
}

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

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

.modal-title {
    font-size: 1.25rem;
    font-weight: 700;
}

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

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

.form-group {
    margin-bottom: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.form-label {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
}

.form-input {
    width: 100%;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 0.375rem;
    padding: 0.625rem 0.875rem;
    font-family: var(--font-main);
    font-size: 0.9rem;
    outline: none;
    transition: var(--transition-smooth);
}

.form-input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px var(--accent-glow);
}

.form-checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.875rem;
    user-select: none;
}

.form-checkbox {
    width: 1rem;
    height: 1rem;
    accent-color: var(--accent-color);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 2rem;
}

/* Event Logs Panel */
.logs-panel {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1.25rem;
    margin-top: 2rem;
}

.logs-title-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.logs-container {
    max-height: 250px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-size: 0.8rem;
    padding-right: 0.25rem;
}

.log-entry {
    display: flex;
    gap: 1rem;
    padding: 0.5rem;
    border-radius: 0.25rem;
    background-color: rgba(0,0,0,0.1);
    border-left: 3px solid var(--border-color);
}

.log-entry.error { border-left-color: var(--error-color); background-color: rgba(239, 68, 68, 0.05); }
.log-entry.ok { border-left-color: var(--success-color); background-color: rgba(16, 185, 129, 0.05); }

.log-time {
    color: var(--text-secondary);
    flex-shrink: 0;
    width: 130px;
}

.log-message {
    flex-grow: 1;
    word-break: break-all;
}

footer {
    text-align: center;
    padding: 2rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
    margin-top: auto;
    background-color: var(--bg-secondary);
}

/* Scrollbars styling */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.1);
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* Loading / Checking animation overlay */
.checking-overlay {
    display: none !important; /* Deshabilitado por completo para no estorbar en la UI */
}

.spinner {
    width: 1rem;
    height: 1rem;
    border: 2px solid white;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Responsive adjustments */
@media (max-width: 640px) {
    header {
        padding: 1rem;
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    .header-actions {
        justify-content: space-between;
    }
    .control-bar {
        flex-direction: column;
        align-items: stretch;
    }
    .search-box {
        max-width: 100%;
    }
    main {
        padding: 1rem;
    }
}


/* --- Ojo Observador --- */
.card H1, .ojo {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

/* Animaciones del Ojo */
@keyframes parpadear {
    0%, 96%, 100% { transform: scaleY(1); }
    98% { transform: scaleY(0.1); }
}
.parpadeo { animation: parpadear 5s infinite; }

/* Vista previa de consulta manual */
.status-card, .whois-card, .preview-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    border-radius: 0.5rem;
    margin-top: 1rem;
    width: 100%;
    box-sizing: border-box;
}

.whois-card h3, .preview-card h3 {
    margin-top: 0;
    color: var(--text-secondary);
}

.whois-card ul {
    list-style: none;
    padding: 0;
}

.preview-card iframe {
    width: 100%;
    height: 400px;
    border: none;
    background: white;
    border-radius: 4px;
}

.status-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-weight: bold;
    margin-top: 0.5rem;
}

.status-badge.ok { background: #065f46; color: #34d399; }
.status-badge.error { background: #991b1b; color: #fecaca; }

/* Para centrar el formulario de consulta manual */
.card-manual-check {
    background-color: var(--bg-secondary);
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid var(--border-color);
    width: 100%;
    max-width: 500px;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
    margin: 2rem auto;
}

/* Estilos adicionales para login */
.login-header { text-align: center; margin-bottom: 2rem; }
.lock-icon { 
    background-color: var(--accent-color);
    width: 4rem; height: 4rem;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.5rem;
}
.login-title { color: var(--accent-color); font-size: 1.5rem; font-weight: bold; margin: 0; }
.login-subtitle { color: var(--text-secondary); font-size: 0.85rem; margin-top: 0.5rem; }
.error-box {
    background-color: rgba(153, 27, 27, 0.3);
    border: 1px solid #ef4444;
    color: #fecaca;
    padding: 0.75rem;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
    font-size: 0.9rem;
}
.card-login {
    background-color: var(--bg-secondary);
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid var(--border-color);
    width: 100%;
    max-width: 400px;
    margin: 4rem auto;
}

/* --- SIDEBAR AND LAYOUT --- */
.app-container {
    display: flex;
    min-height: 100vh;
    width: 100%;
}

.sidebar {
    width: 260px;
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    height: 100vh;
    position: sticky;
    top: 0;
    flex-shrink: 0;
    z-index: 100;
}

.sidebar-logo {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.sidebar-logo .logo-icon {
    width: 2.25rem;
    height: 2.25rem;
    background: linear-gradient(135deg, var(--accent-color), #8b5cf6);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
    box-shadow: 0 0 15px rgba(99, 102, 241, 0.4);
    color: white;
}

.sidebar-logo .logo-title {
    font-size: 1.15rem;
    font-weight: 700;
    display: block;
    color: var(--text-primary);
}

.sidebar-logo .logo-subtitle {
    font-size: 0.65rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
    display: block;
}

.sidebar-nav {
    flex: 1;
    padding: 1.5rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition-smooth);
}

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

.nav-item.active {
    color: var(--accent-color);
    background-color: var(--accent-glow);
    border-left: 3px solid var(--accent-color);
    border-radius: 0 0.5rem 0.5rem 0;
    padding-left: calc(1rem - 3px);
}

.nav-icon {
    flex-shrink: 0;
    transition: var(--transition-smooth);
}

.nav-item.active .nav-icon {
    color: var(--accent-color);
}

.sidebar-footer {
    padding: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: rgba(0, 0, 0, 0.1);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.user-avatar {
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 50%;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-primary);
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
}

.user-role {
    font-size: 0.7rem;
    color: var(--text-secondary);
}

.btn-logout {
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem;
    border-radius: 0.375rem;
    transition: var(--transition-smooth);
}

.btn-logout:hover {
    color: var(--error-color);
    background-color: rgba(239, 68, 68, 0.1);
}

.main-layout {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-width: 0;
    height: 100vh;
    overflow-y: auto;
}

@media (max-width: 768px) {
    .app-container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    
    .sidebar-logo {
        padding: 1rem;
    }
    
    .sidebar-nav {
        flex-direction: row;
        padding: 0.5rem 1rem;
        overflow-x: auto;
        gap: 0.25rem;
    }
    
    .nav-item {
        padding: 0.5rem 0.75rem;
        white-space: nowrap;
    }
    
    .nav-item.active {
        border-left: none;
        border-bottom: 3px solid var(--accent-color);
        border-radius: 0.5rem 0.5rem 0 0;
        padding-left: 0.75rem;
        padding-bottom: calc(0.5rem - 3px);
    }
    
    .sidebar-footer {
        display: none;
    }
    
    .main-layout {
        height: auto;
        overflow-y: visible;
    }
}

/* ==========================================================================
   Configuración de Alertas & Settings Styles
   ========================================================================== */
.settings-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto 2rem;
}

.settings-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: var(--shadow-main);
    position: relative;
}

.settings-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 0;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.75rem;
}

.settings-title svg {
    color: var(--accent-color);
}

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

@media (max-width: 640px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

.switch-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.switch-label {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-primary);
    cursor: pointer;
}

.disabled-card {
    opacity: 0.5;
    position: relative;
    cursor: not-allowed;
}

.disabled-badge {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background-color: var(--paused-color);
    color: var(--bg-primary);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    text-transform: uppercase;
}

/* Custom Alert Message */
.alert-message {
    padding: 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
    font-weight: 500;
    font-size: 0.9rem;
}
.alert-message.success {
    background-color: rgba(16, 185, 129, 0.15);
    border: 1px solid var(--success-color);
    color: var(--success-color);
}
.alert-message.error {
    background-color: rgba(239, 68, 68, 0.15);
    border: 1px solid var(--error-color);
    color: var(--error-color);
}