:root {
    --bg-primary: #0b0f19;
    --bg-card: rgba(26, 34, 53, 0.75);
    --bg-card-border: rgba(255, 255, 255, 0.08);
    --bg-input: #111827;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-dim: #64748b;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --success: #10b981;
    --success-hover: #059669;
    --warning: #f59e0b;
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.35);
    --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-main);
    min-height: 100vh;
    background-image: 
        radial-gradient(at 0% 0%, rgba(59, 130, 246, 0.12) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(239, 68, 68, 0.08) 0px, transparent 50%);
    background-attachment: fixed;
    line-height: 1.5;
}

/* Layout Principal */
.app-layout {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header & Navigation */
.app-header {
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--bg-card-border);
    padding: 16px 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
}

.brand {
    display: flex;
    align-items: center;
    gap: 14px;
}

.pulse-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: linear-gradient(135deg, #ef4444, #f97316);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    position: relative;
}

.pulse-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 12px;
    background: rgba(239, 68, 68, 0.4);
    animation: pulse-ring 2s cubic-bezier(0.215, 0.61, 0.355, 1) infinite;
}

@keyframes pulse-ring {
    0% { transform: scale(0.95); opacity: 0.8; }
    50% { transform: scale(1.3); opacity: 0; }
    100% { transform: scale(0.95); opacity: 0; }
}

.brand h1 {
    font-size: 20px;
    font-weight: 700;
    line-height: 1.1;
    background: linear-gradient(90deg, #ffffff, #cbd5e1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.version-tag {
    font-size: 12px;
    color: var(--text-muted);
}

.header-status {
    display: flex;
    align-items: center;
    gap: 16px;
}

.status-pill {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-pill.online {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-pill.paused {
    background: rgba(245, 158, 11, 0.15);
    color: var(--warning);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.status-pill .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: currentColor;
    box-shadow: 0 0 8px currentColor;
}

/* Tabs */
.nav-tabs {
    display: flex;
    gap: 6px;
    background: rgba(15, 23, 42, 0.6);
    padding: 4px;
    border-radius: 10px;
    border: 1px solid var(--bg-card-border);
}

.nav-tab {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 8px 16px;
    border-radius: 8px;
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
}

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

.nav-tab.active {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

/* Main Content */
.main-content {
    padding: 30px;
    flex: 1;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Stat Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 25px;
}

.stat-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--bg-card-border);
    padding: 20px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow-card);
}

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
}

.stat-icon.blue { background: rgba(59, 130, 246, 0.15); border: 1px solid rgba(59, 130, 246, 0.3); }
.stat-icon.orange { background: rgba(245, 158, 11, 0.15); border: 1px solid rgba(245, 158, 11, 0.3); }
.stat-icon.green { background: rgba(16, 185, 129, 0.15); border: 1px solid rgba(16, 185, 129, 0.3); }
.stat-icon.purple { background: rgba(168, 85, 247, 0.15); border: 1px solid rgba(168, 85, 247, 0.3); }

.stat-value {
    font-size: 26px;
    font-weight: 700;
    line-height: 1.1;
    display: block;
}

.stat-label {
    font-size: 13px;
    color: var(--text-muted);
}

/* Grids & Cards */
.grid-2-col {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 24px;
}

@media (max-width: 1024px) {
    .grid-2-col { grid-template-columns: 1fr; }
    .app-header { flex-direction: column; gap: 16px; align-items: stretch; }
    .header-status { justify-content: space-between; }
}

.card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--bg-card-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    margin-bottom: 20px;
}

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--bg-card-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h2 {
    font-size: 18px;
    font-weight: 600;
}

.card-header p {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 4px;
}

.card-body {
    padding: 24px;
}

.card-body.padding-0 {
    padding: 0;
}

.max-w-700 {
    max-width: 750px;
    margin: 0 auto;
}

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

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    text-align: left;
}

.data-table th {
    background: rgba(15, 23, 42, 0.6);
    padding: 14px 18px;
    color: var(--text-muted);
    font-weight: 600;
    border-bottom: 1px solid var(--bg-card-border);
}

.data-table td {
    padding: 14px 18px;
    border-bottom: 1px solid var(--bg-card-border);
    color: var(--text-main);
}

.data-table tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

.empty-state {
    text-align: center;
    color: var(--text-dim);
    padding: 40px !important;
}

/* Badges */
.badge-mag {
    padding: 4px 10px;
    border-radius: 12px;
    font-weight: 700;
    font-size: 13px;
    display: inline-block;
}

.badge-mag.mag-strong { background: rgba(239, 68, 68, 0.2); color: #f87171; border: 1px solid rgba(239, 68, 68, 0.4); }
.badge-mag.mag-moderate { background: rgba(245, 158, 11, 0.2); color: #fbbf24; border: 1px solid rgba(245, 158, 11, 0.4); }
.badge-mag.mag-light { background: rgba(234, 179, 8, 0.2); color: #fde047; border: 1px solid rgba(234, 179, 8, 0.4); }

/* Consola de Logs */
.log-console {
    background: #090d16;
    border: 1px solid var(--bg-card-border);
    border-radius: var(--radius-md);
    padding: 16px;
    font-family: var(--font-mono);
    font-size: 12px;
    height: 380px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.log-line {
    word-break: break-all;
    line-height: 1.4;
}

.log-line.INFO { color: #38bdf8; }
.log-line.WARNING { color: #fbbf24; }
.log-line.ERROR { color: #f87171; font-weight: bold; }

/* Formularios */
.form-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 16px;
    margin-bottom: 16px;
}

.col-12 { grid-column: span 12; }
.col-8 { grid-column: span 8; }
.col-6 { grid-column: span 6; }
.col-4 { grid-column: span 4; }

@media (max-width: 640px) {
    .col-8, .col-6, .col-4 { grid-column: span 12; }
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 16px;
}

label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
}

.form-control {
    background: var(--bg-input);
    border: 1px solid var(--bg-card-border);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    color: var(--text-main);
    font-family: var(--font-sans);
    font-size: 14px;
    transition: border-color 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.help-text {
    font-size: 11px;
    color: var(--text-dim);
}

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 6px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 14px;
    color: var(--text-main);
}

.checkbox-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--primary);
}

.divider {
    border: none;
    border-top: 1px solid var(--bg-card-border);
    margin: 20px 0;
}

.section-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 14px;
}

.margin-top-20 { margin-top: 20px; }

/* Recipient Chips */
.recipients-input-wrapper {
    display: flex;
    gap: 10px;
}

.chips-container {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
    min-height: 40px;
    padding: 8px;
    background: var(--bg-input);
    border: 1px dashed var(--bg-card-border);
    border-radius: var(--radius-sm);
}

.chip {
    background: rgba(59, 130, 246, 0.2);
    border: 1px solid rgba(59, 130, 246, 0.4);
    color: #93c5fd;
    padding: 4px 10px;
    border-radius: 16px;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.chip-remove {
    cursor: pointer;
    font-weight: bold;
    color: #f87171;
}

/* Botones */
.btn {
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s ease;
}

.btn-sm { padding: 6px 12px; font-size: 12px; }
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-secondary { background: rgba(255, 255, 255, 0.08); color: var(--text-main); }
.btn-secondary:hover { background: rgba(255, 255, 255, 0.15); }
.btn-success { background: var(--success); color: white; }
.btn-success:hover { background: var(--success-hover); }
.btn-icon { padding: 6px 10px; background: transparent; color: var(--text-muted); }
.btn-icon:hover { color: white; }

.form-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
    flex-wrap: wrap;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    background: #1e293b;
    border-left: 4px solid var(--primary);
    color: white;
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    font-size: 14px;
    animation: slideInRight 0.3s ease;
}

.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--danger); }

@keyframes slideInRight {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* User Auth Box */
.auth-box {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-left: 10px;
}

.user-display {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 500;
}

/* Modal overlay */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(11, 15, 25, 0.85);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-overlay.active {
    display: flex;
    animation: fadeIn 0.2s ease;
}

.modal-card {
    background: var(--bg-card);
    border: 1px solid var(--bg-card-border);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 440px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.6);
    overflow: hidden;
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--bg-card-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-main);
}

.btn-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 24px;
    cursor: pointer;
}

.btn-close:hover {
    color: white;
}

.modal-body {
    padding: 24px;
}

.modal-subtitle {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.login-error {
    color: var(--danger);
    font-size: 13px;
    font-weight: 600;
    margin-top: 10px;
    min-height: 18px;
}

.w-full { width: 100%; }