:root {
    --bg-dark: #0a0e14;
    --bg-card: #141b25;
    --bg-surface: #1e293b;
    --primary: #00f5ff;
    --primary-glow: rgba(0, 245, 255, 0.3);
    --secondary: #94a3b8;
    --accent: #7c3aed;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --neon-shadow: 0 0 15px rgba(0, 245, 255, 0.35);
    --danger-shadow: 0 0 15px rgba(239, 68, 68, 0.3);
    --glass-bg: rgba(20, 27, 37, 0.7);
    --border: rgba(255, 255, 255, 0.08);
    --radius: 14px;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    overflow: hidden;
    min-height: 100vh;
}

h1, h2, h3 {
    font-family: 'Outfit', sans-serif;
}

/* ===== Layout ===== */
.app-container {
    display: grid;
    grid-template-columns: 280px 1fr;
    height: 100vh;
}

/* ===== Sidebar ===== */
.sidebar {
    background: var(--bg-card);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 2rem 1.25rem;
    position: relative;
    overflow: hidden;
}

.sidebar::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(ellipse at 30% 20%, rgba(0, 245, 255, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 2.5rem;
    position: relative;
}

.logo {
    font-size: 1.6rem;
    filter: drop-shadow(0 0 6px rgba(0, 245, 255, 0.5));
}

.brand h1 {
    font-size: 1.3rem;
    letter-spacing: -0.5px;
    color: var(--text-main);
}

.brand span {
    color: var(--primary);
    font-weight: 300;
}

.nav-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    margin-bottom: 1rem;
    font-weight: 600;
}

.task-btn {
    width: 100%;
    background: transparent;
    border: 1px solid var(--border);
    padding: 1rem 1.15rem;
    border-radius: var(--radius);
    margin-bottom: 0.65rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

.task-btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 60%, rgba(0, 245, 255, 0.05));
    opacity: 0;
    transition: opacity 0.3s;
}

.task-btn:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.task-btn:hover::after {
    opacity: 1;
}

.task-btn.active {
    background: linear-gradient(135deg, var(--primary), #00c8d4);
    border-color: transparent;
    box-shadow: var(--neon-shadow);
    transform: translateY(-1px);
}

.difficulty {
    font-size: 0.65rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.3rem;
}

.difficulty.easy { color: var(--success); }
.difficulty.medium { color: var(--warning); }
.difficulty.hard { color: var(--danger); }

.task-btn.active .difficulty,
.task-btn.active .task-name {
    color: #0a0e14;
}

.task-name {
    font-weight: 600;
    font-size: 0.92rem;
    color: var(--text-main);
}

.sidebar-footer {
    margin-top: auto;
    padding-top: 1.5rem;
}

.primary-btn {
    width: 100%;
    padding: 0.9rem;
    border-radius: var(--radius);
    border: none;
    background: linear-gradient(135deg, var(--primary), #00c8d4);
    color: #0a0e14;
    font-weight: 700;
    font-size: 0.9rem;
    cursor: pointer;
    font-family: 'Outfit', sans-serif;
    letter-spacing: 0.3px;
    transition: all 0.2s;
}

.primary-btn:hover {
    box-shadow: var(--neon-shadow);
    transform: translateY(-1px);
}

.primary-btn:active {
    transform: translateY(0);
}

/* ===== Main Content ===== */
.main-content {
    background: var(--bg-dark);
    display: flex;
    flex-direction: column;
    padding: 1.75rem 2rem;
    overflow-y: auto;
    position: relative;
}

.main-content::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.04) 0%, transparent 70%);
    pointer-events: none;
}

/* ===== Top Header Stats ===== */
.top-header {
    margin-bottom: 1.5rem;
    position: relative;
}

.status-summary {
    display: flex;
    gap: 3rem;
    background: var(--bg-card);
    padding: 1.25rem 2rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    backdrop-filter: blur(12px);
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.stat-item label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

.stat-item span {
    font-size: 1.15rem;
    font-weight: 700;
    font-family: 'JetBrains Mono', monospace;
}

.status-badge {
    color: var(--text-muted);
    transition: color 0.3s;
}

.status-badge.active {
    color: var(--primary);
}

.status-badge.completed {
    color: var(--success);
}

.reward-positive {
    color: var(--warning) !important;
}

/* ===== Dashboard Grid ===== */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 1.25rem;
    flex: 1;
    min-height: 0;
}

.panel {
    background: var(--bg-card);
    border-radius: 18px;
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.panel-header {
    background: var(--bg-surface);
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
}

.panel-header h2 {
    font-size: 1rem;
    color: var(--text-main);
    font-weight: 600;
}

.resource-count {
    font-size: 0.75rem;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.06);
    padding: 0.2rem 0.65rem;
    border-radius: 999px;
    font-family: 'JetBrains Mono', monospace;
}

.icon-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    opacity: 0.5;
    transition: opacity 0.2s;
}

.icon-btn:hover {
    opacity: 1;
}

/* ===== Resource Grid ===== */
.resource-grid {
    padding: 1.25rem;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1rem;
    overflow-y: auto;
    flex: 1;
}

.resource-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    transition: all 0.25s ease;
    position: relative;
    overflow: hidden;
}

.resource-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--success);
    opacity: 0.6;
}

.resource-card:hover {
    transform: translateY(-3px);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.resource-card.vulnerable {
    border-color: rgba(239, 68, 68, 0.4);
    background: rgba(239, 68, 68, 0.04);
}

.resource-card.vulnerable::before {
    background: var(--danger);
    opacity: 1;
    animation: pulse-bar 2s ease-in-out infinite;
}

.resource-card.secure::before {
    background: var(--success);
}

@keyframes pulse-bar {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

.card-status-dot {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.dot-danger {
    background: var(--danger);
    box-shadow: 0 0 8px var(--danger);
    animation: blink 1.5s ease-in-out infinite;
}

.dot-safe {
    background: var(--success);
    box-shadow: 0 0 6px var(--success);
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.resource-type {
    font-size: 0.6rem;
    font-weight: 800;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.4rem;
    display: block;
}

.resource-id {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    color: var(--text-main);
    margin-bottom: 0.75rem;
    display: block;
}

.sg-warning {
    font-size: 0.78rem;
    color: var(--danger);
    margin-bottom: 0.75rem;
    padding: 0.4rem 0.6rem;
    background: rgba(239, 68, 68, 0.08);
    border-radius: 6px;
    border-left: 2px solid var(--danger);
}

.sg-info {
    font-size: 0.78rem;
    color: var(--success);
    margin-bottom: 0.75rem;
    padding: 0.4rem 0.6rem;
    background: rgba(16, 185, 129, 0.08);
    border-radius: 6px;
    border-left: 2px solid var(--success);
}

.resource-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.tag {
    font-size: 0.68rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 0.15rem 0.55rem;
    border-radius: 4px;
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
}

.tag.env-prod {
    border: 1px solid rgba(16, 185, 129, 0.4);
    color: var(--success);
}

.tag.status-public {
    border: 1px solid rgba(239, 68, 68, 0.5);
    color: var(--danger);
    font-weight: 600;
}

.detail-card {
    grid-column: 1 / -1;
}

.detail-json {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.78rem;
    color: var(--primary);
    background: rgba(0, 0, 0, 0.3);
    padding: 1rem;
    border-radius: 8px;
    overflow-x: auto;
    margin-top: 0.5rem;
    line-height: 1.5;
    white-space: pre-wrap;
}

/* ===== Card Animations ===== */
.fade-in {
    animation: fadeSlideIn 0.4s ease forwards;
    opacity: 0;
}

@keyframes fadeSlideIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Terminal Log ===== */
.log-panel {
    display: flex;
    flex-direction: column;
}

.terminal-log {
    flex: 1;
    background: #000000;
    padding: 1rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
    overflow-y: auto;
    color: #4ade80;
    line-height: 1.7;
    min-height: 200px;
}

.log-entry {
    margin-bottom: 0.35rem;
    word-break: break-word;
}

.log-entry.system { color: #94a3b8; }
.log-entry.error { color: #f87171; }
.log-entry.action { color: #38bdf8; }
.log-entry.reward { color: #fbbf24; font-weight: bold; }

.manual-action {
    display: flex;
    padding: 0.75rem;
    background: var(--bg-surface);
    gap: 0.5rem;
    border-top: 1px solid var(--border);
    flex-shrink: 0;
}

.manual-action input {
    flex: 1;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.7rem 0.85rem;
    color: var(--text-main);
    outline: none;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.82rem;
    transition: border-color 0.2s;
}

.manual-action input::placeholder {
    color: rgba(148, 163, 184, 0.5);
}

.manual-action input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(0, 245, 255, 0.1);
}

.manual-action button {
    background: var(--primary);
    border: none;
    padding: 0 1.25rem;
    border-radius: 8px;
    color: #0a0e14;
    font-weight: 700;
    font-size: 0.82rem;
    cursor: pointer;
    transition: all 0.2s;
    font-family: 'Inter', sans-serif;
}

.manual-action button:hover {
    box-shadow: var(--neon-shadow);
}

/* ===== Empty State ===== */
.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    color: var(--text-muted);
    padding: 3.5rem 2rem;
    border: 2px dashed rgba(255, 255, 255, 0.06);
    border-radius: var(--radius);
    font-size: 0.9rem;
}

/* ===== Toast ===== */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--primary);
    padding: 0.9rem 1.75rem;
    border-radius: 12px;
    box-shadow: var(--neon-shadow);
    z-index: 1000;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    transform: translateY(0);
    opacity: 1;
}

.toast.hidden {
    display: none;
    opacity: 0;
    transform: translateY(20px);
}

.toast.show {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .app-container {
        grid-template-columns: 1fr;
    }
    .sidebar {
        display: none;
    }
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}