:root {
    /* Color Palette - "Industrial Slate & Neon" */
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-accent: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #38bdf8;
    --accent-hover: #0ea5e9;
    --border-color: #334155;
    --success: #22c55e;
    --danger: #ef4444;
    --card-bg: rgba(30, 41, 59, 0.7);
    
    /* Spacing & Sizing */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --container-max: 1400px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-primary);
    background-image: 
        radial-gradient(at 0% 0%, rgba(56, 189, 248, 0.05) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(56, 189, 248, 0.05) 0px, transparent 50%);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
}

/* Layout */
.app-container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 2rem;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1.5rem;
}

.header-title h1 {
    font-size: 1.875rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    color: var(--text-primary);
}

.header-title p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Actions */
.actions-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    gap: 1rem;
}

.search-wrapper {
    position: relative;
    flex: 1;
    max-width: 400px;
}

.search-input {
    width: 100%;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1rem 0.75rem 2.75rem;
    border-radius: var(--radius-md);
    color: var(--text-primary);
    transition: all 0.2s;
}

.search-input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.2);
}

.search-icon {
    position: absolute;
    left: 0.875rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid transparent;
}

.btn-primary {
    background: var(--accent-color);
    color: var(--bg-primary);
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-accent);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: #475569;
}

.btn-icon {
    padding: 0.5rem;
    border-radius: var(--radius-sm);
}

/* Table */
.table-container {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
    backdrop-filter: blur(8px);
}

table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

th {
    background: rgba(15, 23, 42, 0.5);
    padding: 1rem 1.5rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

td {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.875rem;
}

tr:last-child td {
    border-bottom: none;
}

tr:hover td {
    background: rgba(56, 189, 248, 0.03);
}

.fee-name {
    font-weight: 600;
    color: var(--accent-color);
}

.amount-name {
    color: var(--text-primary);
}

.monetary-value {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 500;
}

/* Badges */
.badge {
    padding: 0.25rem 0.625rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-flat {
    background: rgba(34, 197, 94, 0.1);
    color: var(--success);
    border: 1px solid rgba(34, 197, 94, 0.2);
}

.badge-fixed {
    background: rgba(56, 189, 248, 0.1);
    color: var(--accent-color);
    border: 1px solid rgba(56, 189, 248, 0.2);
}

/* Summary Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--card-bg);
    padding: 1.25rem;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--accent-color);
    backdrop-filter: blur(8px);
}

.stat-card.success { border-left-color: var(--success); }
.stat-card.danger { border-left-color: var(--danger); }
.stat-card.neutral { border-left-color: var(--text-secondary); }

.stat-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    display: block;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: 0.25rem;
}

.flex-center { display: flex; align-items: center; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-md { gap: 0.75rem; }
.text-right { text-align: right; }

/* Modal/Forms Overlay Simulation */
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    padding: 1rem 0;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.form-input {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    padding: 0.75rem;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-color);
}

/* Footer Info */
.table-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    color: var(--text-secondary);
    font-size: 0.75rem;
}

.pagination {
    display: flex;
    gap: 0.5rem;
}

.page-link {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    cursor: pointer;
}

.page-link.active {
    background: var(--accent-color);
    color: var(--bg-primary);
    border-color: var(--accent-color);
}

.placeholder-icon {
    display: inline-block;
    width: 20px;
    height: 20px;
    background: currentColor;
    opacity: 0.2;
    border-radius: 4px;
}