:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;
    --bg-card: #15151f;
    --bg-hover: #1e1e2a;
    --border-color: #2a2a3a;
    --border-active: #3d5afe;
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #606070;
    --accent-blue: #3d5afe;
    --accent-blue-hover: #536dfe;
    --accent-blue-glow: rgba(61, 90, 254, 0.3);
    --accent-green: #00e676;
    --accent-green-dim: rgba(0, 230, 118, 0.15);
    --accent-red: #ff5252;
    --accent-red-dim: rgba(255, 82, 82, 0.15);
    --accent-yellow: #ffd740;
    --accent-yellow-dim: rgba(255, 215, 64, 0.15);
    --accent-purple: #7c4dff;
    --accent-purple-dim: rgba(124, 77, 255, 0.15);
    --gradient-blue: linear-gradient(135deg, #3d5afe 0%, #536dfe 100%);
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 40px var(--accent-blue-glow);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --font-mono: 'JetBrains Mono', monospace;
    --font-sans: 'Inter', -apple-system, sans-serif;
}

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

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
}

.bg-grid {
    position: fixed;
    inset: 0;
    background-image: 
        linear-gradient(rgba(61, 90, 254, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(61, 90, 254, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 0;
}

.bg-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-blue-glow) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
    opacity: 0.5;
    top: -200px;
    left: -200px;
}

.bg-glow-2 {
    top: auto;
    left: auto;
    bottom: -300px;
    right: -200px;
    background: radial-gradient(circle, rgba(124, 77, 255, 0.2) 0%, transparent 70%);
}

.app-container {
    display: flex;
    min-height: 100vh;
    position: relative;
    z-index: 1;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 100;
}

.sidebar-header {
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
}

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

.logo-icon {
    width: 42px;
    height: 42px;
    background: var(--gradient-blue);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 16px;
    box-shadow: var(--shadow-glow);
}

.logo-text {
    font-family: var(--font-mono);
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 2px;
}

.logo-version {
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 400;
    margin-top: 2px;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    overflow-y: auto;
}

.nav-section { margin-bottom: 24px; }

.nav-section-title {
    font-size: 10px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    padding: 0 12px;
    margin-bottom: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 4px;
}

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

.nav-item.active {
    background: rgba(61, 90, 254, 0.15);
    color: var(--accent-blue);
    border: 1px solid rgba(61, 90, 254, 0.3);
}

.nav-item svg { width: 20px; height: 20px; flex-shrink: 0; }

.nav-badge {
    margin-left: auto;
    background: var(--accent-blue);
    color: white;
    font-size: 11px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 10px;
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border-color);
}

.connect-btn {
    width: 100%;
    padding: 14px;
    background: var(--gradient-blue);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px var(--accent-blue-glow);
}

.connect-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px var(--accent-blue-glow);
}

.connect-btn.connected {
    background: var(--accent-green-dim);
    border: 1px solid var(--accent-green);
    color: var(--accent-green);
    box-shadow: none;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 260px;
    min-height: 100vh;
}

.main-header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 20px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 50;
}

.page-title {
    display: flex;
    align-items: center;
    gap: 16px;
}

.page-title h1 { font-size: 24px; font-weight: 600; }

.module-badge {
    background: rgba(61, 90, 254, 0.15);
    border: 1px solid rgba(61, 90, 254, 0.3);
    color: var(--accent-blue);
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
}

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

.header-btn {
    padding: 10px 20px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
}

.header-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--border-active);
}

.header-btn.primary {
    background: var(--gradient-blue);
    border: none;
    color: white;
}

.main-body { padding: 32px; }

/* Module Panels */
.module-panel { display: none; }
.module-panel.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-blue);
}

.stat-card.green::before { background: var(--accent-green); }
.stat-card.red::before { background: var(--accent-red); }
.stat-card.yellow::before { background: var(--accent-yellow); }
.stat-card.purple::before { background: var(--accent-purple); }

.stat-label {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    font-family: var(--font-mono);
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 8px;
}

.stat-change {
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.stat-change.positive { color: var(--accent-green); }
.stat-change.negative { color: var(--accent-red); }

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

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

.card-title {
    font-size: 16px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-body { padding: 24px; }

/* Tables */
.data-table { width: 100%; border-collapse: collapse; }

.data-table th {
    text-align: left;
    padding: 14px 16px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-tertiary);
}

.data-table td {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
    vertical-align: middle;
}

.data-table tr:hover td { background: var(--bg-hover); }

.data-table .mono {
    font-family: var(--font-mono);
    font-size: 13px;
}

/* Status Badges */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.status-badge.open { background: var(--accent-blue-glow); color: var(--accent-blue); }
.status-badge.paid, .status-badge.active, .status-badge.completed { background: var(--accent-green-dim); color: var(--accent-green); }
.status-badge.pending, .status-badge.in-progress { background: var(--accent-yellow-dim); color: var(--accent-yellow); }
.status-badge.overdue, .status-badge.cancelled { background: var(--accent-red-dim); color: var(--accent-red); }
.status-badge.draft { background: var(--accent-purple-dim); color: var(--accent-purple); }

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: currentColor;
}

/* Forms */
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.form-group { margin-bottom: 20px; }
.form-group.full-width { grid-column: 1 / -1; }

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.form-input {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 14px;
    transition: all 0.2s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px var(--accent-blue-glow);
}

.form-input::placeholder { color: var(--text-muted); }
.form-input.mono { font-family: var(--font-mono); }

select.form-input {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23606070' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 40px;
}

textarea.form-input { min-height: 120px; resize: vertical; }

/* Buttons */
.btn {
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s ease;
    border: none;
}

.btn-primary { background: var(--gradient-blue); color: white; }
.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px var(--accent-blue-glow);
}

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

.btn-secondary:hover { background: var(--bg-hover); color: var(--text-primary); }
.btn-success { background: var(--accent-green); color: var(--bg-primary); }
.btn-danger { background: var(--accent-red); color: white; }
.btn-sm { padding: 8px 16px; font-size: 13px; }
.btn-icon { width: 36px; height: 36px; padding: 0; border-radius: var(--radius-sm); }

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
}

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

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 700px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-card);
}

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

.modal-title { font-size: 20px; font-weight: 600; }

.modal-close {
    width: 36px;
    height: 36px;
    border: none;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.modal-close:hover { background: var(--accent-red); color: white; }

.modal-body { padding: 24px; }

.modal-footer {
    padding: 20px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* Line Items */
.line-items { margin-top: 16px; }

.line-item {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr auto;
    gap: 12px;
    align-items: center;
    padding: 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: 8px;
}

.line-item-total {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--accent-blue);
}

.add-line-btn {
    width: 100%;
    padding: 12px;
    background: transparent;
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-muted);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.add-line-btn:hover { border-color: var(--accent-blue); color: var(--accent-blue); }

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.empty-state svg { width: 64px; height: 64px; margin-bottom: 16px; opacity: 0.5; }
.empty-state h3 { font-size: 18px; margin-bottom: 8px; color: var(--text-secondary); }

/* Grid Layout */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }

/* Time Tracking */
.time-display {
    font-family: var(--font-mono);
    font-size: 48px;
    font-weight: 700;
    text-align: center;
    padding: 40px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
}

.time-display.active {
    color: var(--accent-green);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.clock-actions { display: flex; gap: 16px; justify-content: center; }

.clock-btn {
    padding: 16px 48px;
    font-size: 16px;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.clock-in-btn { background: var(--accent-green); color: var(--bg-primary); }
.clock-out-btn { background: var(--accent-red); color: white; }

/* Task Columns */
.task-columns {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.task-column {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 16px;
}

.task-column-header {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.task-count {
    background: var(--bg-tertiary);
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 12px;
    color: var(--text-muted);
}

.task-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 14px;
    margin-bottom: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.task-card:hover { border-color: var(--accent-blue); }

.task-title { font-size: 14px; font-weight: 500; margin-bottom: 8px; }

.task-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--text-muted);
}

.task-priority {
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
}

.task-priority.high { background: var(--accent-red-dim); color: var(--accent-red); }
.task-priority.medium { background: var(--accent-yellow-dim); color: var(--accent-yellow); }
.task-priority.low { background: var(--accent-blue-glow); color: var(--accent-blue); }

/* Inventory Grid */
.inventory-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.inventory-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.2s ease;
}

.inventory-card:hover {
    border-color: var(--accent-blue);
    transform: translateY(-2px);
}

.inventory-image {
    height: 140px;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
}

.inventory-details { padding: 16px; }
.inventory-name { font-weight: 600; margin-bottom: 4px; }
.inventory-sku {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.inventory-stock { display: flex; justify-content: space-between; align-items: center; }

.stock-level { font-family: var(--font-mono); font-size: 18px; font-weight: 600; }
.stock-level.low { color: var(--accent-red); }
.stock-level.medium { color: var(--accent-yellow); }
.stock-level.high { color: var(--accent-green); }

/* Toast */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.toast {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 300px;
    box-shadow: var(--shadow-card);
    animation: slideIn 0.3s ease;
}

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

.toast.success { border-left: 4px solid var(--accent-green); }
.toast.error { border-left: 4px solid var(--accent-red); }
.toast.info { border-left: 4px solid var(--accent-blue); }

/* IPFS Hash */
.ipfs-hash {
    font-family: var(--font-mono);
    font-size: 12px;
    background: var(--bg-tertiary);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: 8px;
    word-break: break-all;
}

.copy-btn {
    padding: 4px 8px;
    background: var(--bg-hover);
    border: none;
    border-radius: 4px;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 11px;
}

.copy-btn:hover { background: var(--accent-blue); color: white; }

/* Role Badge */
.role-badge {
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}

.role-badge.admin { background: var(--accent-purple-dim); color: var(--accent-purple); }
.role-badge.manager { background: var(--accent-blue-glow); color: var(--accent-blue); }
.role-badge.employee { background: var(--accent-green-dim); color: var(--accent-green); }

/* Sub Navigation */
.sub-nav {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.sub-nav-item {
    padding: 10px 20px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.sub-nav-item.active {
    background: rgba(61, 90, 254, 0.15);
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

/* QR Code */
.qr-container {
    background: white;
    padding: 16px;
    border-radius: var(--radius-md);
    display: inline-block;
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }