:root {
    --bg-color: #0a0e27;
    --card-bg: #161b33;
    --text-primary: #ffffff;
    --text-secondary: #a0aec0;
    --accent-color: #6366f1;
    --accent-secondary: #8b5cf6;
    --border-color: #2d3748;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --font-family: 'Inter', sans-serif;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.5);
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 40px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--accent-color);
}

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

.avatar {
    width: 36px;
    height: 36px;
    background-color: var(--accent-color);
    color: var(--bg-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

/* Dashboard Controls */
.controls-section {
    margin-bottom: 20px;
}

h1 {
    font-size: 1.8rem;
    font-weight: 600;
}

/* Filters Card */
.filters-card {
    background: var(--card-bg);
    padding: 24px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    margin-bottom: 30px;
}

.filter-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.filter-group label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

input[type="date"],
select {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    padding: 10px 12px;
    font-family: var(--font-family);
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s ease;
}

input[type="date"]:focus,
select:focus {
    border-color: var(--accent-color);
}

input[type="date"]::-webkit-calendar-picker-indicator {
    filter: invert(1);
    cursor: pointer;
}

select[multiple] {
    min-height: 120px;
    padding: 8px;
}

select[multiple] option {
    padding: 8px;
    border-radius: 4px;
    margin-bottom: 4px;
}

select[multiple] option:checked {
    background: linear-gradient(135deg, var(--accent-color) 0%, #0ea5e9 100%);
    color: var(--bg-color);
}

select option {
    padding: 8px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-secondary) 100%);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4);
}

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

.date-filter {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--card-bg);
    padding: 8px 16px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.stat-card {
    background: var(--card-bg);
    padding: 24px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-color);
}

.stat-card h3 {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 8px;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.stat-trend {
    font-size: 0.875rem;
    font-weight: 500;
}

.stat-trend.positive {
    color: var(--success-color);
}

.stat-trend.neutral {
    color: var(--text-secondary);
}

/* Transactions Table */
.transactions-section {
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    padding: 24px;
}

.transactions-section h2 {
    font-size: 1.25rem;
    margin-bottom: 20px;
}

.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th,
td {
    padding: 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.875rem;
}

td {
    font-size: 0.95rem;
}

.text-right {
    text-align: right;
}

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

tbody tr:hover {
    background-color: rgba(255, 255, 255, 0.02);
}

.hidden {
    display: none;
}

#no-data-message {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
}

/* Splash Screen */
.splash-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--bg-color) 0%, #1a1f3a 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease-out;
}

.splash-screen.fade-out {
    opacity: 0;
    pointer-events: none;
}

.splash-logo {
    max-width: 200px;
    height: auto;
    margin-bottom: 20px;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.8;
        transform: scale(1.05);
    }
}

.splash-text {
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 600;
    margin-top: 20px;
}

/* Login Page Styles */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--bg-color) 0%, #1a1f3a 100%);
    padding: 20px;
}

.login-card {
    max-width: 420px;
    width: 100%;
    padding: 40px;
    background: var(--card-bg);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.login-logo {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
}

.login-logo img {
    max-width: 180px;
    height: auto;
}

.login-title {
    text-align: center;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 30px;
}

.login-form .form-group {
    margin-bottom: 20px;
}

.login-form label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.login-form input {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: var(--font-family);
    transition: border-color 0.2s ease;
}

.login-form input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.login-btn {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-secondary) 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(99, 102, 241, 0.3);
}

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

.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.875rem;
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger-color);
    color: var(--danger-color);
}

/* Toast Notifications */
.toast-notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 16px 24px;
    background: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-weight: 500;
    z-index: 10000;
    opacity: 0;
    transform: translateX(400px);
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    border-left: 4px solid;
    max-width: 400px;
}

.toast-notification.show {
    opacity: 1;
    transform: translateX(0);
}

.toast-notification.toast-success {
    border-left-color: var(--success-color);
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, var(--card-bg) 100%);
}

.toast-notification.toast-error {
    border-left-color: var(--danger-color);
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1) 0%, var(--card-bg) 100%);
}

.toast-notification.toast-warning {
    border-left-color: var(--warning-color);
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1) 0%, var(--card-bg) 100%);
}