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

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #ec4899;
    --bg-body: #f3f4f6;
    --bg-card: #ffffff;
    --text-main: #1f2937;
    --text-muted: #6b7280;
    --success: #10b981;
    --danger: #ef4444;
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(255, 255, 255, 0.3);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius-lg: 1rem;
    --radius-md: 0.75rem;
    --radius-full: 9999px;
}

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

body {
    background-color: var(--bg-body);
    color: var(--text-main);
    min-height: 100vh;
    padding-bottom: 80px; /* Space for bottom nav */
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* Utilities */
.container {
    width: 100%;
    max-width: 600px; /* App-like max width */
    margin: 0 auto;
    padding: 1rem;
}

.card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 1.5rem;
    margin-bottom: 1rem;
    transition: transform 0.2s, box-shadow 0.2s;
    border: 1px solid rgba(229, 231, 235, 0.5);
}

.card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    font-size: 0.95rem;
    gap: 0.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 6px 16px rgba(99, 102, 241, 0.4);
    transform: translateY(-1px);
}

.btn-secondary {
    background: white;
    color: var(--text-main);
    border: 1px solid #e5e7eb;
}

.btn-danger {
    background-color: var(--danger);
    color: white;
}

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

/* Forms */
.form-group { margin-bottom: 1rem; }
.form-label { display: block; margin-bottom: 0.5rem; font-weight: 500; font-size: 0.9rem; color: var(--text-muted); }
.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid #e5e7eb;
    border-radius: var(--radius-md);
    background-color: #f9fafb;
    transition: all 0.2s;
    font-size: 1rem;
}
.form-control:focus {
    outline: none;
    border-color: var(--primary);
    background-color: white;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* Typography headers */
h1, h2, h3 { font-weight: 600; letter-spacing: -0.025em; }
h1 { font-size: 1.875rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }

/* Bottom Nav */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-around;
    padding: 0.75rem 0;
    z-index: 1000;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--text-muted);
    font-size: 0.75rem;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
}

.nav-item.active {
    color: var(--primary);
}

.nav-item i {
    font-size: 1.5rem;
}

/* Helper Classes */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-muted { color: var(--text-muted); }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mt-4 { margin-top: 1rem; }
.w-100 { width: 100%; }
.gap-2 { gap: 0.5rem; }

/* Floating Action Button */
.fab {
    position: fixed;
    bottom: 90px;
    right: 20px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
    font-size: 1.5rem;
    z-index: 900;
    cursor: pointer;
    border: none;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1050;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s;
}
.modal-overlay.show {
    display: flex;
    opacity: 1;
}
.modal {
    background: white;
    width: 90%;
    max-width: 500px;
    border-radius: var(--radius-lg);
    padding: 2rem;
    transform: translateY(20px);
    transition: transform 0.3s;
}
.modal-overlay.show .modal {
    transform: translateY(0);
}

/* Specific Page Styles */
.balance-card {
    background: linear-gradient(135deg, var(--primary), #818cf8);
    color: white;
    text-align: center;
    padding: 2rem;
}
.balance-card .amount {
    font-size: 2.5rem;
    font-weight: 700;
}
.entry-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: white;
    border-bottom: 1px solid #f3f4f6;
}
.entry-item:last-child { border-bottom: none; }
.entry-date {
    font-size: 0.8rem;
    color: var(--text-muted);
}