/* style.css */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    /* Premium Dark Fintech Palette */
    --bg-main: #0B0F19;      /* Very deep blue/black */
    --bg-card: #151A2D;      /* Slightly lighter for cards */
    --bg-hover: #1E2538;
    --border-color: #2A3143;
    
    /* Text */
    --text-main: #F8FAFC;
    --text-muted: #94A3B8;
    
    /* Financial Accents */
    --fin-blue: #3B82F6;     /* Primary Actions */
    --fin-blue-glow: rgba(59, 130, 246, 0.15);
    --fin-green: #10B981;    /* Income / Success */
    --fin-green-glow: rgba(16, 185, 129, 0.15);
    --fin-red: #EF4444;      /* Expense / Danger */
    --fin-red-glow: rgba(239, 68, 68, 0.15);
    --fin-yellow: #F59E0B;   /* Pending / Warnings */
    
    --sidebar-width: 260px;
    --border-radius-lg: 16px;
    --border-radius-md: 12px;
}

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

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Master Layout */
.app-container {
    display: flex;
    height: 100vh;
    width: 100vw;
}

/* Fintech Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-card);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    z-index: 1000;
    transition: transform 0.3s ease;
}

.brand-area {
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-area img {
    height: 40px;
    border-radius: 8px;
}

.nav-links {
    flex-grow: 1;
    padding: 20px 12px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: var(--border-radius-md);
    font-weight: 500;
    transition: all 0.2s ease;
}

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

.nav-item.active {
    background-color: var(--fin-blue-glow);
    color: var(--fin-blue);
    border-left: 4px solid var(--fin-blue);
}

/* Main Content Area */
.main-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

/* Topbar */
.topbar {
    height: 70px;
    background-color: rgba(21, 26, 45, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    z-index: 100;
}

.content-wrapper {
    flex-grow: 1;
    padding: 32px;
    overflow-y: auto;
}

/* Financial Cards (Bento/Modern) */
.fin-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 24px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.fin-card:hover {
    border-color: #3b435b;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

/* Metric Display */
.metric-title {
    color: var(--text-muted);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
    margin-bottom: 8px;
}

.metric-value {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.text-income { color: var(--fin-green); }
.text-expense { color: var(--fin-red); }
.text-brand { color: var(--fin-blue); }

/* Tables - Dark Theme */
.table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    color: var(--text-main);
}

.table th {
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
}

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

.table tr:hover td {
    background-color: rgba(255,255,255,0.02);
}

/* Badges */
.fin-badge {
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}
.badge-income { background: var(--fin-green-glow); color: var(--fin-green); }
.badge-expense { background: var(--fin-red-glow); color: var(--fin-red); }
.badge-neutral { background: var(--bg-hover); color: var(--text-muted); }

/* Buttons */
.btn-fin {
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}
.btn-primary-fin { background: var(--fin-blue); color: white; }
.btn-primary-fin:hover { background: #2563EB; box-shadow: 0 4px 12px var(--fin-blue-glow); }
.btn-outline-fin { background: transparent; border: 1px solid var(--border-color); color: var(--text-main); }
.btn-outline-fin:hover { border-color: var(--text-muted); background: var(--bg-hover); }

/* Forms */
.form-control-fin {
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    border-radius: 8px;
    padding: 12px 16px;
    width: 100%;
    transition: border-color 0.2s;
}
.form-control-fin:focus {
    outline: none;
    border-color: var(--fin-blue);
}
.form-label {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 6px;
    display: block;
}

/* Custom Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* Mobile */
@media (max-width: 768px) {
    .sidebar { position: fixed; transform: translateX(-100%); }
    .sidebar.active { transform: translateX(0); }
    .topbar { padding: 0 16px; }
    .content-wrapper { padding: 16px; }
}