:root {
    --bg-color: #0b0f19;
    --panel-bg: rgba(30, 41, 59, 0.6);
    --panel-border: rgba(255, 255, 255, 0.08);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --success: #10b981;
    --success-bg: rgba(16, 185, 129, 0.1);
    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.1);
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.1);
    --input-bg: rgba(15, 23, 42, 0.6);
    --glass-blur: blur(12px);
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    padding: 2rem;
    background-image: 
        radial-gradient(circle at 15% 50%, rgba(59, 130, 246, 0.15), transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(16, 185, 129, 0.15), transparent 25%);
    background-attachment: fixed;
}

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

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

h1 {
    font-size: 1.8rem;
    font-weight: 600;
    letter-spacing: -0.5px;
    background: linear-gradient(to right, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

.month-filter {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.btn {
    background-color: var(--accent);
    color: #fff;
    border: none;
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-danger {
    background-color: transparent;
    color: var(--danger);
    padding: 0.4rem 0.8rem;
    border: 1px solid var(--danger-bg);
}

.btn-danger:hover {
    background-color: var(--danger);
    color: #fff;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

/* Dashboard Cards */
.dashboard-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.card {
    background: var(--panel-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--panel-border);
    border-radius: 16px;
    padding: 1.5rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.card-title {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.card-value {
    font-size: 2.2rem;
    font-weight: 700;
}

.value-success { color: var(--success); }
.value-danger { color: var(--danger); }
.value-warning { color: var(--warning); }
.value-neutral { color: var(--text-primary); }

/* Category Summary Grid */
.category-summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1rem;
}

.cat-summary-item {
    background: rgba(15, 23, 42, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
}

.cat-summary-name {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.3rem;
}

.cat-summary-val {
    font-size: 1.2rem;
    font-weight: 600;
}

/* Main Layout */
.main-grid {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 2rem;
}

@media (max-width: 900px) {
    .main-grid {
        grid-template-columns: 1fr;
    }
}

.panel {
    background: var(--panel-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--panel-border);
    border-radius: 16px;
    padding: 1.5rem;
}

.panel-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

/* Form Styles */
.form-group {
    margin-bottom: 1.2rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.form-control {
    width: 100%;
    background: var(--input-bg);
    border: 1px solid var(--panel-border);
    color: var(--text-primary);
    padding: 0.7rem 1rem;
    border-radius: 8px;
    outline: none;
    transition: border-color 0.3s ease;
    color-scheme: dark;
}

.form-control:focus {
    border-color: var(--accent);
}

/* Table Styles */
.table-container {
    overflow-x: auto;
    border-radius: 12px;
    background: rgba(15, 23, 42, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

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

th, td {
    padding: 1.2rem 1.5rem;
    text-align: left;
}

th {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-secondary);
    letter-spacing: 1px;
    font-weight: 600;
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

td {
    font-size: 0.95rem;
    color: var(--text-primary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    vertical-align: middle;
}

tr {
    transition: background-color 0.2s ease, transform 0.2s ease;
}

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

tr:hover {
    background-color: rgba(255, 255, 255, 0.03);
}

.badge {
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: inline-block;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.badge-receita {
    background: var(--success-bg);
    color: var(--success);
}

.badge-despesa {
    background: var(--danger-bg);
    color: var(--danger);
}

.badge-estorno {
    background: var(--warning-bg);
    color: var(--warning);
}

.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
}

/* Login Overlay */
.login-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(11, 15, 25, 0.9);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.login-box {
    width: 90%;
    max-width: 380px;
    text-align: center;
    padding: 2.5rem;
}

.hidden {
    display: none !important;
}

/* Responsividade Mobile */
@media (max-width: 600px) {
    body {
        padding: 1rem;
    }

    h1 {
        font-size: 1.4rem;
    }

    .dashboard-cards {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .category-summary-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    }

    .card-value {
        font-size: 1.8rem;
    }

    .login-box {
        padding: 1.5rem;
    }

    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }

    .main-grid {
        gap: 1rem;
    }
}