:root {
    --primary: #1a1a1a;
    --secondary: #2c3e50;
    --accent: #3498db;
    --success: #2ecc71;
    --danger: #e74c3c;
    --bg: #f8f9fa;
    --text: #333;
    --text-muted: #666;
    --glass: rgba(255, 255, 255, 0.7);
    --border: rgba(0, 0, 0, 0.05);
    --card-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.07);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
}

.background-blobs {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: radial-gradient(circle at 10% 20%, rgba(52, 152, 219, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 90% 80%, rgba(46, 204, 113, 0.05) 0%, transparent 50%);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

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

.logo h1 {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -1px;
}

.logo span {
    color: var(--accent);
}

.logo p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.actions {
    display: flex;
    gap: 1rem;
}

/* Glassmorphism */
.glass {
    background: var(--glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: var(--card-shadow);
    border-radius: 24px;
}

.btn {
    padding: 0.6rem 1.2rem;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: #333; transform: translateY(-2px); }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-outline:hover { background: rgba(0,0,0,0.02); }
.btn-sm { padding: 0.5rem 1rem; font-size: 0.85rem; }

/* Top Row: Manual Entry + Stats */
.top-row {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.manual-entry { padding: 1.5rem; }
.manual-entry h3 { margin-bottom: 1.2rem; font-size: 1.1rem; }

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label { font-size: 0.8rem; font-weight: 600; color: var(--text-muted); }
.form-group input, .form-group select {
    padding: 0.6rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    outline: none;
    font-family: inherit;
}

.form-actions { display: flex; gap: 0.5rem; }

.stats-grid { display: flex; flex-direction: column; gap: 1rem; }
.stats-grid .card { padding: 1.2rem; flex: 1; display: flex; flex-direction: column; justify-content: center; }
.stats-grid h3 { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 0.3rem; }
.stats-grid .amount { font-size: 1.8rem; font-weight: 700; }

.income { color: var(--success); }
.expense { color: var(--danger); }
.income-text { color: var(--success); }
.expense-text { color: var(--danger); }

/* Filters */
.filters { padding: 1.2rem 1.5rem; margin-bottom: 2rem; }
.filter-form { display: flex; align-items: flex-end; gap: 1.5rem; flex-wrap: wrap; }
.filter-group { display: flex; flex-direction: column; gap: 0.4rem; }
.filter-group label { font-size: 0.75rem; font-weight: 700; color: var(--text-muted); text-transform: uppercase; }
.filter-group input, .filter-group select {
    padding: 0.5rem;
    border-radius: 6px;
    border: 1px solid var(--border);
    font-family: inherit;
}
.filter-actions { display: flex; gap: 0.5rem; }

/* Table styling */
.transactions { padding: 1.5rem; }
.table-header { margin-bottom: 1.5rem; }
.table-container { overflow-x: auto; }

table { width: 100%; border-collapse: collapse; min-width: 600px; }
th { text-align: left; padding: 0.8rem; font-size: 0.8rem; color: var(--text-muted); border-bottom: 1px solid var(--border); }
td { padding: 1rem 0.8rem; border-bottom: 1px solid var(--border); font-size: 0.95rem; }

/* Widen Date Column */
.col-date { width: 140px; white-space: nowrap; }

.badge { padding: 0.2rem 0.6rem; border-radius: 6px; font-size: 0.7rem; font-weight: 700; text-transform: uppercase; }
.badge.income { background: rgba(46, 204, 113, 0.1); color: var(--success); }
.badge.expense { background: rgba(231, 76, 60, 0.1); color: var(--danger); }
.badge.upcoming\ income { background: rgba(52, 152, 219, 0.1); color: var(--accent); }
.badge.upcoming\ expense { background: rgba(230, 126, 34, 0.1); color: #e67e22; }

.upcoming-income-text { color: var(--accent); }
.upcoming-expense-text { color: #e67e22; }

.actions-cell { display: flex; justify-content: flex-end; gap: 0.8rem; }
.edit-link, .delete-link {
    background: none; border: none; cursor: pointer; color: var(--text-muted); opacity: 0.5; transition: 0.2s;
}
.edit-link:hover { color: var(--accent); opacity: 1; }
.delete-link:hover { color: var(--danger); opacity: 1; }

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

.flash-messages { margin-bottom: 1.5rem; }
.flash { background: var(--primary); color: white; padding: 0.8rem 1.2rem; border-radius: 10px; margin-bottom: 0.5rem; font-size: 0.85rem; }

/* Animations */
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.animate-in { animation: fadeIn 0.6s ease forwards; opacity: 0; animation-delay: var(--delay); }

footer { text-align: center; padding: 3rem; color: var(--text-muted); font-size: 0.8rem; }

@media (max-width: 900px) {
    .top-row { grid-template-columns: 1fr; }
    .filter-form { flex-direction: column; align-items: stretch; }
}