:root {
    --bg-dark: #070a12;
    --bg-gradient: radial-gradient(circle at 10% 10%, rgba(2, 132, 199, 0.12) 0%, transparent 40%),
                   radial-gradient(circle at 90% 90%, rgba(245, 158, 11, 0.08) 0%, transparent 40%),
                   radial-gradient(circle at 50% 50%, rgba(139, 92, 246, 0.05) 0%, transparent 60%);
    --card-bg: rgba(14, 20, 36, 0.85);
    --card-border: rgba(255, 255, 255, 0.08);
    --card-border-hover: rgba(2, 132, 199, 0.4);
    --primary: #0284c7;
    --primary-glow: rgba(2, 132, 199, 0.5);
    --primary-hover: #0369a1;
    --accent-gold: #fbbf24;
    --accent-gold-glow: rgba(251, 191, 36, 0.35);
    --accent-green: #10b981;
    --accent-green-glow: rgba(16, 185, 129, 0.35);
    --accent-red: #ef4444;
    --accent-purple: #a855f7;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --glass-blur: blur(14px);
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--bg-dark);
    background-image: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text-main);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ==========================================================================
   TOP NAVIGATION BAR (DESKTOP & MOBILE)
   ========================================================================== */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
    background: rgba(10, 15, 28, 0.85);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--card-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 17px;
    font-weight: 800;
    letter-spacing: 0.5px;
    background: linear-gradient(135deg, #ffffff 40%, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-brand i {
    -webkit-text-fill-color: initial;
    filter: drop-shadow(0 0 8px rgba(251, 191, 36, 0.6));
}

.badge-version {
    font-size: 11px;
    background: rgba(2, 132, 199, 0.15);
    color: #38bdf8;
    padding: 3px 8px;
    border-radius: 20px;
    border: 1px solid rgba(2, 132, 199, 0.3);
    font-weight: 600;
    letter-spacing: 0.3px;
    -webkit-text-fill-color: #38bdf8;
}

.nav-metrics {
    display: flex;
    align-items: center;
    gap: 10px;
}

.metric-pill {
    padding: 6px 12px;
    border-radius: 10px;
    font-size: 12px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
    border: 1px solid var(--card-border);
    background: rgba(20, 27, 45, 0.6);
    backdrop-filter: blur(8px);
    transition: var(--transition);
}

.metric-pill:hover {
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-1px);
}

.coin-pill {
    border-color: rgba(245, 158, 11, 0.3);
    color: var(--accent-gold);
    background: rgba(245, 158, 11, 0.08);
}
.coin-pill strong, .coin-pill span {
    font-size: 13px;
    color: #fde047;
    text-shadow: 0 0 10px rgba(251, 191, 36, 0.3);
}

.key-pill {
    border-color: rgba(2, 132, 199, 0.3);
    color: #38bdf8;
    background: rgba(2, 132, 199, 0.08);
}

.status-pill {
    border-color: rgba(100, 116, 139, 0.3);
    color: var(--text-muted);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: #64748b;
    transition: var(--transition);
}

.status-active {
    border-color: rgba(16, 185, 129, 0.4);
    color: #34d399 !important;
    background: rgba(16, 185, 129, 0.1);
}

.status-active .status-dot {
    background-color: var(--accent-green);
    box-shadow: 0 0 10px var(--accent-green);
    animation: pulse 1.8s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

/* ==========================================================================
   APP CONTAINER & SIDEBAR
   ========================================================================== */
.app-container {
    display: flex;
    flex: 1;
    position: relative;
}

.sidebar {
    width: 250px;
    background: rgba(10, 15, 28, 0.9);
    border-right: 1px solid var(--card-border);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 16px 12px;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    z-index: 90;
}

.nav-menu {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    background: transparent;
    color: var(--text-muted);
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
    width: 100%;
}

.nav-btn i {
    font-size: 15px;
    width: 18px;
    text-align: center;
    transition: var(--transition);
}

.nav-btn:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.04);
}

.nav-btn.active {
    color: #38bdf8;
    background: linear-gradient(135deg, rgba(2, 132, 199, 0.2), rgba(2, 132, 199, 0.05));
    border-color: rgba(2, 132, 199, 0.4);
    box-shadow: 0 4px 15px rgba(2, 132, 199, 0.15);
}

.nav-btn.active i {
    color: #38bdf8;
    transform: scale(1.1);
}

.sidebar-footer {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 12px;
    background: rgba(15, 23, 42, 0.4);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.04);
}

.sidebar-footer small {
    font-size: 11px;
    color: #64748b;
}

/* ==========================================================================
   MAIN CONTENT & TABS
   ========================================================================== */
.main-content {
    flex: 1;
    padding: 20px 24px;
    overflow-y: auto;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

.tab-pane {
    display: none;
    animation: fadeIn 0.25s ease;
}

.tab-pane.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   CARDS & KPI STATS
   ========================================================================== */
.card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 20px;
    margin-bottom: 20px;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
    transition: var(--transition);
}

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 20px;
}

.kpi-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 18px 20px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.kpi-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: transparent;
    transition: var(--transition);
}

.kpi-card:hover {
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

.kpi-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 8px;
}

.kpi-title i {
    font-size: 14px;
}

.kpi-value {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -0.5px;
    line-height: 1.1;
}

.kpi-sub {
    font-size: 11px;
    color: #64748b;
    font-weight: 500;
}

/* ==========================================================================
   BUTTONS & FORM CONTROLS
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: var(--radius-md);
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    border: 1px solid transparent;
    transition: var(--transition);
    text-decoration: none;
    user-select: none;
}

.btn:active {
    transform: scale(0.98);
}

.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    filter: grayscale(0.5);
}

.btn-primary {
    background: linear-gradient(135deg, #0284c7, #0369a1);
    color: #ffffff;
    box-shadow: 0 4px 16px rgba(2, 132, 199, 0.35);
    border: 1px solid rgba(56, 189, 248, 0.3);
}

.btn-primary:hover:not(:disabled) {
    background: linear-gradient(135deg, #0369a1, #075985);
    box-shadow: 0 6px 22px rgba(2, 132, 199, 0.55);
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: #ffffff;
    box-shadow: 0 4px 16px rgba(239, 68, 68, 0.35);
    border: 1px solid rgba(248, 113, 113, 0.3);
}

.btn-danger:hover:not(:disabled) {
    background: linear-gradient(135deg, #dc2626, #b91c1c);
    box-shadow: 0 6px 22px rgba(239, 68, 68, 0.55);
}

.btn-warning {
    background: linear-gradient(135deg, #d97706, #b45309);
    color: #ffffff;
    box-shadow: 0 4px 16px rgba(217, 119, 6, 0.35);
    border: 1px solid rgba(251, 191, 36, 0.3);
}

.btn-warning:hover:not(:disabled) {
    background: linear-gradient(135deg, #b45309, #92400e);
    box-shadow: 0 6px 22px rgba(217, 119, 6, 0.55);
}

.btn-dark {
    background: #1e293b;
    color: var(--text-main);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.btn-dark:hover:not(:disabled) {
    background: #334155;
    border-color: rgba(255, 255, 255, 0.15);
}

.btn-sm {
    padding: 7px 12px;
    font-size: 12px;
    border-radius: var(--radius-sm);
}

.btn-group {
    display: flex;
    gap: 10px;
    align-items: center;
}

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

.form-group label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
}

.form-control, .form-control-sm {
    background: rgba(15, 23, 42, 0.7);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 10px 14px;
    color: var(--text-main);
    font-size: 13px;
    outline: none;
    transition: var(--transition);
    width: 100%;
}

.form-control:focus, .form-control-sm:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.2);
    background: rgba(15, 23, 42, 0.95);
}

.form-control-sm {
    padding: 6px 10px;
    font-size: 12px;
    border-radius: var(--radius-sm);
}

/* ==========================================================================
   MINER CONTROL CARD
   ========================================================================== */
.control-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 12px;
}

.control-header h3 {
    font-size: 16px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
}

.control-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 14px;
}

/* ==========================================================================
   TERMINAL & LIVE CONSOLE
   ========================================================================== */
.terminal-card {
    padding: 0;
    overflow: hidden;
    background: #040711;
    border: 1px solid #1e293b;
}

.terminal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: rgba(15, 23, 42, 0.85);
    border-bottom: 1px solid #1e293b;
}

.terminal-title {
    font-size: 13px;
    font-weight: 700;
    color: #e2e8f0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.terminal-title i {
    color: #38bdf8;
}

.terminal-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.checkbox-label {
    font-size: 12px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}

.terminal-body {
    height: 380px;
    overflow-y: auto;
    padding: 14px 16px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: 12.5px;
    line-height: 1.6;
    color: #cbd5e1;
    background: #030611;
    scroll-behavior: smooth;
}

.log-line {
    word-break: break-all;
    white-space: pre-wrap;
    padding: 2px 0;
}

.terminal-body::-webkit-scrollbar {
    width: 6px;
}
.terminal-body::-webkit-scrollbar-thumb {
    background: #334155;
    border-radius: 4px;
}

/* ==========================================================================
   TABLES & TOOLBAR
   ========================================================================== */
.toolbar {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.search-box {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(15, 23, 42, 0.7);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    padding: 6px 12px;
    flex: 1;
    min-width: 180px;
}

.search-box i {
    color: #64748b;
    font-size: 13px;
}

.search-box input {
    background: transparent;
    border: none;
    color: var(--text-main);
    font-size: 13px;
    outline: none;
    width: 100%;
}

.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    text-align: left;
    white-space: nowrap;
}

.data-table th {
    background: rgba(15, 23, 42, 0.95);
    padding: 12px 14px;
    color: #94a3b8;
    font-weight: 700;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--card-border);
}

.data-table td {
    padding: 12px 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    vertical-align: middle;
}

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

.pagination-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 16px;
    font-size: 12px;
    color: var(--text-muted);
    flex-wrap: wrap;
    gap: 10px;
}

/* ==========================================================================
   PROXIES & TRANSFER
   ========================================================================== */
.proxy-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 12px;
}

.tor-toggle-box {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    font-weight: 600;
}

.proxy-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
}

.proxy-stats-box {
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 18px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.transfer-card {
    max-width: 620px;
    margin: 0 auto;
}

.transfer-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 18px;
}

.receipt-box {
    margin-top: 24px;
    background: rgba(16, 185, 129, 0.06);
    border: 1px solid rgba(16, 185, 129, 0.4);
    border-radius: var(--radius-md);
    padding: 16px;
}

.receipt-box pre {
    font-family: ui-monospace, Menlo, Monaco, Consolas, monospace;
    font-size: 12px;
    color: #4ade80;
    margin: 12px 0;
    white-space: pre-wrap;
    background: rgba(0, 0, 0, 0.4);
    padding: 12px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

/* SWITCH */
.switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}
.switch input { opacity: 0; width: 0; height: 0; }
.slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: #334155;
    transition: .3s;
    border-radius: 24px;
}
.slider:before {
    position: absolute;
    content: "";
    height: 18px; width: 18px;
    left: 3px; bottom: 3px;
    background-color: white;
    transition: .3s;
    border-radius: 50%;
}
input:checked + .slider { background-color: var(--accent-green); }
input:checked + .slider:before { transform: translateX(20px); }

/* UTILITY COLORS */
.text-yellow { color: var(--accent-gold) !important; }
.text-blue { color: #38bdf8 !important; }
.text-green { color: var(--accent-green) !important; }
.text-purple { color: var(--accent-purple) !important; }
.text-red { color: var(--accent-red) !important; }
.text-muted { color: var(--text-muted) !important; }
.text-center { text-align: center; }
.mt-2 { margin-top: 8px; }

/* ==========================================================================
   📱 ULTRA MOBILE RESPONSIVE ADAPTATIONS (SMARTPHONES & TABLETS)
   ========================================================================== */

/* TABLETS (< 1024px) */
@media (max-width: 1024px) {
    .kpi-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .proxy-grid {
        grid-template-columns: 1fr;
    }
}

/* SMARTPHONES & MOBILE BROWSERS (< 768px) */
@media (max-width: 768px) {
    /* Navbar compact mobile layout */
    .navbar {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
        padding: 10px 14px;
    }

    .nav-brand {
        justify-content: space-between;
        font-size: 15px;
    }

    .badge-version {
        font-size: 10px;
        padding: 2px 6px;
    }

    .nav-metrics {
        display: flex;
        justify-content: space-between;
        width: 100%;
        gap: 6px;
    }

    .metric-pill {
        flex: 1;
        justify-content: center;
        padding: 6px 8px;
        font-size: 11px;
    }

    .key-pill span {
        max-width: 70px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
        display: inline-block;
    }

    /* Bottom Navigation Bar for Mobile */
    .app-container {
        flex-direction: column;
    }

    .sidebar {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        width: 100%;
        height: 64px;
        padding: 0 4px;
        background: rgba(10, 15, 28, 0.96);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-right: none;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        z-index: 9999;
        flex-direction: row;
        box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.5);
    }

    .sidebar-footer {
        display: none;
    }

    .nav-menu {
        flex-direction: row;
        width: 100%;
        height: 100%;
        justify-content: space-around;
        align-items: center;
        gap: 2px;
    }

    .nav-btn {
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 4px;
        padding: 6px 4px;
        font-size: 9.5px;
        border-radius: var(--radius-sm);
        height: 52px;
        min-width: 58px;
        text-align: center;
    }

    .nav-btn i {
        font-size: 16px;
        width: auto;
    }

    .nav-btn span {
        white-space: nowrap;
    }

    /* Main Content Padding to not get covered by bottom bar */
    .main-content {
        padding: 14px 12px 80px 12px;
    }

    /* KPI Grid on Mobile (2x2 Compact Cards) */
    .kpi-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
        margin-bottom: 14px;
    }

    .kpi-card {
        padding: 12px 14px;
        border-radius: var(--radius-md);
    }

    .kpi-title {
        font-size: 11px;
    }

    .kpi-value {
        font-size: 22px;
    }

    .kpi-sub {
        font-size: 10px;
    }

    /* Control Grid & Buttons */
    .card {
        padding: 14px;
        border-radius: var(--radius-md);
        margin-bottom: 14px;
    }

    .control-header {
        flex-direction: column;
        align-items: stretch;
    }

    .btn-group {
        flex-direction: column;
        width: 100%;
    }

    .btn-group .btn {
        width: 100%;
        min-height: 44px;
    }

    .control-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    /* Terminal on Mobile */
    .terminal-body {
        height: 290px;
        font-size: 11.5px;
        padding: 10px 12px;
    }

    /* Toolbar & Search on Mobile */
    .toolbar {
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
    }

    .toolbar .btn {
        width: 100%;
        min-height: 40px;
    }

    .search-box {
        width: 100%;
    }

    /* Table adjustments */
    .data-table th, .data-table td {
        padding: 10px 10px;
        font-size: 12px;
    }

    .proxy-grid {
        grid-template-columns: 1fr;
    }
}

/* SMALL SMARTPHONES (< 400px) */
@media (max-width: 400px) {
    .nav-btn {
        font-size: 8.5px;
        padding: 4px 2px;
        min-width: 50px;
    }
    .kpi-value {
        font-size: 19px;
    }
}