:root {
    --bg-primary: #0a0d14;
    --bg-secondary: #111622;
    --bg-tertiary: #182030;
    --border-color: #232d42;
    --accent-blue: #0066b1;       /* BMW Classic Blue */
    --accent-cyan: #00a0e3;       /* M Light Blue */
    --accent-red: #e7222e;        /* M Red */
    --text-main: #f0f4f8;
    --text-muted: #8a99ad;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-main);
    height: 100vh;
    overflow: hidden;
}

.font-mono {
    font-family: 'JetBrains Mono', monospace;
}

.app-container {
    display: flex;
    height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 24px 16px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 36px;
    padding: 0 8px;
}

.brand-badge {
    display: flex;
    gap: 3px;
    transform: skewX(-15deg);
}

.m-stripe {
    width: 5px;
    height: 20px;
    border-radius: 1px;
}

.m-stripe.cyan { background-color: var(--accent-cyan); }
.m-stripe.blue { background-color: var(--accent-blue); }
.m-stripe.red { background-color: var(--accent-red); }

.brand h2 {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 1px;
}

.brand h2 span {
    color: var(--accent-cyan);
}

.nav-links {
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 500;
    padding: 12px 14px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: left;
}

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

.nav-item.active {
    background-color: rgba(0, 160, 227, 0.12);
    color: var(--accent-cyan);
    border-left: 3px solid var(--accent-cyan);
}

.connection-status-card {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.status-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--danger);
    box-shadow: 0 0 10px rgba(239, 68, 68, 0.5);
}

.status-indicator.connected {
    background-color: var(--success);
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
}

.status-title {
    font-size: 13px;
    font-weight: 600;
}

.status-subtitle {
    font-size: 11px;
    color: var(--text-muted);
}

/* Main Content */
.content {
    flex: 1;
    overflow-y: auto;
    padding: 32px 40px;
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.top-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

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

.top-header h1 {
    font-size: 24px;
    font-weight: 700;
}

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

.header-actions {
    display: flex;
    gap: 12px;
}

/* Hamburger Button (Hidden on Desktop) */
.hamburger-btn {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 40px;
    height: 40px;
    background: rgba(17, 22, 34, 0.9);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 9px 8px;
    cursor: pointer;
    z-index: 1001;
    transition: all 0.25s ease;
}

.hamburger-btn:hover {
    background: var(--bg-tertiary);
    border-color: var(--accent-cyan);
}

.hamburger-bar {
    width: 100%;
    height: 2px;
    background-color: var(--text-main);
    border-radius: 2px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: center;
}

.hamburger-btn.open .hamburger-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
    background-color: var(--accent-cyan);
}

.hamburger-btn.open .hamburger-bar:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.hamburger-btn.open .hamburger-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
    background-color: var(--accent-cyan);
}

/* Close button inside sidebar (Mobile Only) */
.sidebar-close-btn {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 26px;
    line-height: 1;
    cursor: pointer;
    margin-left: auto;
    padding: 4px 8px;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.sidebar-close-btn:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

/* Sidebar Backdrop */
.sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 998;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    color: #fff;
    box-shadow: 0 4px 14px rgba(0, 160, 227, 0.25);
}

.btn-primary:hover {
    filter: brightness(1.1);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: #202b40;
}

.btn-accent {
    background-color: var(--accent-blue);
    color: #fff;
}

.btn-sm {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 11px;
    cursor: pointer;
}

/* Cards & Grid */
.card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.metric-card {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.metric-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.8px;
    color: var(--text-muted);
}

.metric-value {
    font-size: 20px;
    font-weight: 700;
}

.badge {
    align-self: flex-start;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
}

.badge-neutral { background: rgba(138, 153, 173, 0.15); color: var(--text-muted); }
.badge-warning { background: rgba(245, 158, 11, 0.15); color: var(--warning); }
.badge-success { background: rgba(16, 185, 129, 0.15); color: var(--success); }

.action-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.analysis-results {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    min-height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

/* Forms */
.form-group {
    margin: 20px 0 16px 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

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

.form-group input {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: #fff;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 14px;
    width: 380px;
}

.form-checkbox {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 24px;
    font-size: 13px;
}

.code-preview {
    margin-top: 24px;
    background: #05070a;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
}

.code-preview pre {
    overflow-x: auto;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: #38bdf8;
    margin-top: 8px;
}

/* Tab Views */
.tab-view {
    display: none;
}

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

/* Terminal */
.terminal-card {
    padding: 0;
    overflow: hidden;
}

.terminal-header {
    background-color: var(--bg-tertiary);
    padding: 12px 20px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.terminal-body {
    background-color: #05070a;
    padding: 20px;
    height: 380px;
    overflow-y: auto;
    font-size: 12px;
    line-height: 1.6;
}

.log-line.info { color: #38bdf8; }
.log-line.success { color: #4ade80; }
.log-line.warn { color: #facc15; }
.log-line.error { color: #f87171; }

/* Backup & Restore View Styles */
.backup-card-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 20px;
}

.backup-item {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 20px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.2s ease;
}

.backup-item:hover {
    border-color: rgba(56, 189, 248, 0.4);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.backup-info-meta {
    display: flex;
    gap: 20px;
    align-items: center;
    margin-top: 6px;
    font-size: 13px;
    color: var(--text-muted);
}

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

/* Admin Lock & Protected Portal Styles */
.admin-lock-card {
    background: linear-gradient(145deg, rgba(17, 24, 39, 0.95), rgba(10, 13, 20, 0.98));
    border: 1px solid rgba(56, 189, 248, 0.25);
    border-radius: 14px;
    padding: 40px 32px;
    max-width: 480px;
    margin: 40px auto;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(12px);
}

.admin-lock-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(56, 189, 248, 0.1);
    border: 1px solid rgba(56, 189, 248, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--accent-cyan);
}

.admin-header-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    padding: 10px 16px;
    margin-bottom: 20px;
    font-size: 13px;
}

.btn-danger-outline {
    background: transparent;
    border: 1px solid rgba(239, 68, 68, 0.5);
    color: #f87171;
    font-size: 11px;
    padding: 4px 8px;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-danger-outline:hover {
    background: rgba(239, 68, 68, 0.15);
    border-color: #ef4444;
}

/* ==============================================================================
   MOBILE & TABLET RESPONSIVE SYSTEM (Off-Canvas Drawer & Touch Navigation)
   ============================================================================== */
@media (max-width: 992px) {
    body {
        overflow: auto;
        height: auto;
        min-height: 100vh;
    }

    .app-container {
        height: auto;
        min-height: 100vh;
        position: relative;
    }

    /* Hamburger Button Visible */
    .hamburger-btn {
        display: flex;
    }

    .sidebar-close-btn {
        display: block;
    }

    .sidebar-backdrop {
        display: block;
    }

    .sidebar-backdrop.active {
        opacity: 1;
        pointer-events: auto;
    }

    /* Off-Canvas Sidebar Drawer */
    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        width: 290px;
        max-width: 85vw;
        height: 100vh;
        z-index: 1000;
        transform: translateX(-100%);
        transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        box-shadow: 8px 0 32px rgba(0, 0, 0, 0.75);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .brand {
        margin-bottom: 24px;
    }

    /* Main Content Adjustments */
    .content {
        padding: 20px 16px;
        gap: 20px;
        width: 100%;
        overflow-x: hidden;
    }

    .top-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 14px;
        padding-bottom: 12px;
        border-bottom: 1px solid var(--border-color);
    }

    .header-left {
        width: 100%;
        gap: 12px;
    }

    .top-header h1 {
        font-size: 20px;
        line-height: 1.25;
    }

    .subtitle {
        font-size: 12px;
    }

    .header-actions {
        width: 100%;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }

    .header-actions .btn {
        width: 100%;
        justify-content: center;
        padding: 10px 12px;
        font-size: 13px;
    }

    /* Responsive Form & Metric Grids */
    .metrics-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .form-grid {
        grid-template-columns: 1fr !important;
        gap: 12px;
    }

    .options-grid {
        grid-template-columns: 1fr !important;
    }

    .backup-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .backup-actions-cluster {
        width: 100%;
        flex-wrap: wrap;
    }

    .backup-actions-cluster button {
        flex: 1;
        min-width: 110px;
    }

    /* Responsive License Creation Grid */
    div[style*="grid-template-columns:1.5fr 1.5fr 1.5fr 1fr"] {
        grid-template-columns: 1fr !important;
    }

    div[style*="grid-template-columns:1fr 1fr"] {
        grid-template-columns: 1fr !important;
    }

    div[style*="grid-template-columns: 2fr 1.2fr 1.2fr 2fr"] {
        grid-template-columns: 1fr !important;
    }

    div[style*="grid-template-columns: 2fr 1fr 1fr"] {
        grid-template-columns: 1fr !important;
    }

    div[style*="grid-template-columns: 1fr 1fr"] {
        grid-template-columns: 1fr !important;
    }
}