:root {
    --bg-base: #070a10;
    --bg-surface: #0c121d;
    --bg-surface-elevated: #111827;
    --bg-card: rgba(17, 24, 39, 0.75);
    --border: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(56, 189, 248, 0.4);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-dim: #64748b;
    --accent: #38bdf8;
    --accent-glow: rgba(56, 189, 248, 0.25);
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #f43f5e;
    --tunnel: #818cf8;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.7);
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; }

body {
    background-color: var(--bg-base);
    background-image: 
        radial-gradient(circle at 10% 10%, rgba(56, 189, 248, 0.06) 0%, transparent 45%),
        radial-gradient(circle at 90% 90%, rgba(129, 140, 248, 0.06) 0%, transparent 45%);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Custom Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: rgba(0,0,0,0.2); }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(56, 189, 248, 0.4); }

/* Header Nav */
.header-nav {
    background: rgba(12, 18, 29, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 12px 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-logo {
    font-size: 20px;
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.2), rgba(129, 140, 248, 0.1));
    border: 1px solid rgba(56, 189, 248, 0.35);
    border-radius: var(--radius-sm);
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 15px rgba(56, 189, 248, 0.2);
}

.header-title {
    font-size: 16px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.header-subtitle {
    font-size: 11px;
    color: var(--text-dim);
    font-family: 'JetBrains Mono', monospace;
}

.header-badge-live {
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--success);
    font-size: 11px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    margin-left: 10px;
}

.live-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--success);
    box-shadow: 0 0 8px var(--success);
}

/* Nav Tabs */
.nav-tabs {
    display: flex;
    gap: 4px;
    background: rgba(0, 0, 0, 0.4);
    padding: 4px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
}

.nav-tab {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 700;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-tab:hover { color: #ffffff; background: rgba(255,255,255,0.03); }
.nav-tab.active {
    background: rgba(56, 189, 248, 0.12);
    color: var(--accent);
    border: 1px solid rgba(56, 189, 248, 0.3);
    box-shadow: 0 2px 12px rgba(56, 189, 248, 0.15);
}

.tab-badge {
    background: rgba(56, 189, 248, 0.2);
    color: var(--accent);
    font-size: 11px;
    padding: 1px 7px;
    border-radius: 999px;
    font-family: 'JetBrains Mono', monospace;
    font-weight: 700;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-pill {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
}

.btn-refresh {
    background: rgba(56, 189, 248, 0.08);
    border: 1px solid rgba(56, 189, 248, 0.25);
    color: var(--accent);
    padding: 7px 14px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.15s;
}
.btn-refresh:hover { background: rgba(56, 189, 248, 0.18); transform: translateY(-1px); }

/* Main Container */
.main-container {
    max-width: 1560px;
    width: 100%;
    margin: 0 auto;
    padding: 22px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.screen-view {
    display: none;
    flex-direction: column;
    gap: 18px;
}
.screen-view.active { display: flex; }

/* KPI Cards */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.kpi-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 18px 20px;
    box-shadow: var(--shadow-card);
    position: relative;
    overflow: hidden;
    transition: transform 0.2s ease, border-color 0.2s ease;
}
.kpi-card:hover { transform: translateY(-2px); border-color: rgba(255, 255, 255, 0.15); }
.kpi-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; }
.kpi-total::before { background: var(--accent); box-shadow: 0 0 10px var(--accent); }
.kpi-success::before { background: var(--success); box-shadow: 0 0 10px var(--success); }
.kpi-tunnel::before { background: var(--tunnel); box-shadow: 0 0 10px var(--tunnel); }
.kpi-warning::before { background: var(--warning); box-shadow: 0 0 10px var(--warning); }

.kpi-title {
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 6px;
}

.kpi-val {
    font-size: 32px;
    font-weight: 900;
    font-family: 'JetBrains Mono', monospace;
    letter-spacing: -0.03em;
    line-height: 1.1;
}

.kpi-sub {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* Card Panel */
.card-panel {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px 22px;
    box-shadow: var(--shadow-card);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.card-title {
    font-size: 15px;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 8px;
    letter-spacing: -0.01em;
}

.dashboard-split {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 18px;
}

/* Forms & Inputs */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 12px;
}

.form-group label {
    font-size: 12.5px;
    font-weight: 700;
    color: var(--text-muted);
}

.select-box, .input-box, .textarea-box {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border);
    color: var(--text-main);
    font-size: 13px;
    padding: 9px 14px;
    border-radius: var(--radius-sm);
    outline: none;
    transition: all 0.2s;
}

.select-box:focus, .input-box:focus, .textarea-box:focus {
    border-color: var(--accent);
    box-shadow: 0 0 10px rgba(56, 189, 248, 0.2);
}

.textarea-box {
    height: 100px;
    resize: vertical;
    font-family: 'JetBrains Mono', monospace;
}

.checkbox-label {
    font-size: 12.5px;
    font-weight: 600;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

/* Buttons */
.btn-action {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 12.5px;
    font-weight: 700;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all 0.15s;
}
.btn-action:hover { color: #fff; background: rgba(255, 255, 255, 0.1); }
.btn-primary {
    background: linear-gradient(135deg, #38bdf8 0%, #0284c7 100%);
    color: #04101d;
    border: none;
}
.btn-primary:hover { box-shadow: 0 0 15px rgba(56, 189, 248, 0.35); color: #000; }
.btn-danger {
    background: rgba(244, 63, 94, 0.12);
    border-color: rgba(244, 63, 94, 0.3);
    color: #fca5a5;
}
.btn-danger:hover { background: rgba(244, 63, 94, 0.25); color: #fff; }

.toolbar {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 12px 18px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

/* Tables */
.table-responsive { width: 100%; overflow-x: auto; }
.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 13px;
}
.data-table th {
    background: rgba(0, 0, 0, 0.3);
    color: var(--text-dim);
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 10px 14px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}
.data-table td {
    padding: 11px 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    vertical-align: middle;
}
.data-table tr:hover td { background: rgba(56, 189, 248, 0.03); }

/* Tags */
.tag {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 9px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 700;
    font-family: 'JetBrains Mono', monospace;
}
.tag-success { background: rgba(16, 185, 129, 0.12); color: #6ee7b7; border: 1px solid rgba(16, 185, 129, 0.3); }
.tag-danger { background: rgba(244, 63, 94, 0.12); color: #fca5a5; border: 1px solid rgba(244, 63, 94, 0.3); }
.tag-warning { background: rgba(245, 158, 11, 0.12); color: #fcd34d; border: 1px solid rgba(245, 158, 11, 0.3); }
.tag-tunnel { background: rgba(129, 140, 248, 0.12); color: #c7d2fe; border: 1px solid rgba(129, 140, 248, 0.3); }

/* Tasks Grid */
.tasks-grid {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.task-card {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 14px 18px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.15s;
}
.task-card:hover { border-color: rgba(56, 189, 248, 0.3); }

/* Accounts Grid */
.accounts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 16px;
}
.account-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 18px 20px;
    box-shadow: var(--shadow-card);
    display: flex;
    flex-direction: column;
    gap: 12px;
    position: relative;
}
.account-card:hover { border-color: rgba(56, 189, 248, 0.3); }

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.82);
    backdrop-filter: blur(10px);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.modal-content {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    max-width: 600px;
    width: 100%;
    padding: 24px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.9);
}
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border);
    padding-bottom: 12px;
}
.modal-title { font-size: 16px; font-weight: 800; }
.modal-close { background: none; border: none; font-size: 20px; color: var(--text-muted); cursor: pointer; }
.modal-close:hover { color: #fff; }

.found-ips-stream {
    display: flex;
    flex-direction: column;
    gap: 6px;
    max-height: 280px;
    overflow-y: auto;
}
.found-ip-row {
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
}