/* ===== NABUNG - Modern Savings App CSS ===== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    --primary: #0ea5e9;
    --primary-dark: #0284c7;
    --primary-light: #e0f2fe;
    --secondary: #10b981;
    --secondary-dark: #059669;
    --accent: #8b5cf6;
    --danger: #ef4444;
    --warning: #f59e0b;
    --bg: #f0f4f8;
    --bg-card: #ffffff;
    --text: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    --border: #e2e8f0;
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
    --radius: 12px;
    --radius-sm: 8px;
    --gradient: linear-gradient(135deg, #0ea5e9 0%, #10b981 100%);
    --gradient-soft: linear-gradient(135deg, #e0f2fe 0%, #d1fae5 100%);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

a { color: var(--primary); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--primary-dark); }

/* ===== NAVBAR ===== */
.navbar {
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 0 1rem;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}
.navbar-brand {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}
.navbar-brand span { font-weight: 400; font-size: 0.75rem; -webkit-text-fill-color: var(--text-secondary); margin-left: 6px; }
.navbar-right { display: flex; align-items: center; gap: 12px; }
.navbar-user { font-size: 0.875rem; color: var(--text-secondary); }
.navbar-user strong { color: var(--text); }

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    line-height: 1.4;
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--gradient); color: #fff; }
.btn-primary:hover { color: #fff; opacity: 0.9; }
.btn-secondary { background: var(--bg); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: #e2e8f0; color: var(--text); }
.btn-success { background: var(--secondary); color: #fff; }
.btn-success:hover { background: var(--secondary-dark); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #dc2626; color: #fff; }
.btn-sm { padding: 6px 14px; font-size: 0.8rem; }
.btn-block { width: 100%; }
.btn-outline { background: transparent; border: 2px solid var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-logout { background: transparent; color: var(--danger); border: 1px solid var(--danger); padding: 6px 14px; font-size: 0.8rem; }
.btn-logout:hover { background: var(--danger); color: #fff; }

/* ===== CONTAINER ===== */
.container { max-width: 960px; margin: 0 auto; padding: 1.5rem 1rem; }

/* ===== PAGE HEADER ===== */
.page-header { margin-bottom: 1.5rem; }
.page-header h1 { font-size: 1.5rem; font-weight: 700; color: var(--text); }
.page-header p { color: var(--text-secondary); font-size: 0.9rem; margin-top: 4px; }
.page-header-row { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }

/* ===== CARDS ===== */
.card {
    background: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: box-shadow 0.2s, transform 0.2s;
}
.card:hover { box-shadow: var(--shadow-md); }
.card-body { padding: 1.25rem; }
.card-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Summary cards */
.summary-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin-bottom: 1.5rem; }
.summary-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 1.25rem;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}
.summary-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
}
.summary-card.blue::before { background: var(--primary); }
.summary-card.green::before { background: var(--secondary); }
.summary-card.purple::before { background: var(--accent); }
.summary-card.red::before { background: var(--danger); }
.summary-card .label { font-size: 0.8rem; color: var(--text-secondary); font-weight: 500; text-transform: uppercase; letter-spacing: 0.5px; }
.summary-card .value { font-size: 1.5rem; font-weight: 700; margin-top: 6px; color: var(--text); }
.summary-card .icon { position: absolute; right: 16px; top: 50%; transform: translateY(-50%); font-size: 2.5rem; opacity: 0.08; }

/* Child card */
.child-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1rem; }
.child-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.25rem;
    transition: all 0.25s ease;
    border: 1px solid var(--border);
    position: relative;
}
.child-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); border-color: var(--primary); }
.child-card .child-name { font-size: 1.1rem; font-weight: 700; margin-bottom: 4px; }
.child-card .child-email { font-size: 0.8rem; color: var(--text-secondary); margin-bottom: 12px; }
.child-card .child-balance { font-size: 1.25rem; font-weight: 700; color: var(--secondary); margin-bottom: 12px; }
.child-card .child-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* ===== FORMS ===== */
.form-group { margin-bottom: 1.25rem; }
.form-label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.9rem;
    color: var(--text);
    background: #fff;
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
}
.form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(14,165,233,0.15); }
.form-control.is-invalid { border-color: var(--danger); }
.form-hint { font-size: 0.78rem; color: var(--text-light); margin-top: 4px; }
.form-select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 8L1 3h10z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; padding-right: 36px; }

/* ===== ALERTS ===== */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 8px;
    animation: slideDown 0.3s ease;
}
@keyframes slideDown { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }
.alert-success { background: #d1fae5; color: #065f46; border: 1px solid #a7f3d0; }
.alert-danger { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }
.alert-warning { background: #fef3c7; color: #92400e; border: 1px solid #fde68a; }

/* ===== BADGES ===== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.3px;
}
.badge-income { background: #d1fae5; color: #065f46; }
.badge-expense { background: #fee2e2; color: #991b1b; }
.badge-parent { background: var(--primary-light); color: var(--primary-dark); }
.badge-child { background: #ede9fe; color: #6d28d9; }

/* ===== TABLE ===== */
.table-responsive { overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: var(--radius); }
.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}
.table thead th {
    background: var(--bg);
    padding: 10px 14px;
    text-align: left;
    font-weight: 600;
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
    border-bottom: 2px solid var(--border);
}
.table tbody td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}
.table tbody tr:last-child td { border-bottom: none; }
.table tbody tr:hover { background: #f8fafc; }
.table .amount { font-weight: 600; white-space: nowrap; }
.table .amount.income { color: var(--secondary); }
.table .amount.expense { color: var(--danger); }

/* ===== AUTH PAGES ===== */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    background: var(--gradient);
    position: relative;
}
.auth-wrapper::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.auth-card {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
    width: 100%;
    max-width: 420px;
    padding: 2rem;
    position: relative;
    z-index: 1;
    animation: fadeUp 0.4s ease;
}
@keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.auth-card .auth-logo {
    text-align: center;
    margin-bottom: 1.5rem;
}
.auth-card .auth-logo h1 {
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.auth-card .auth-logo p { color: var(--text-secondary); font-size: 0.9rem; margin-top: 4px; }
.auth-card .auth-footer { text-align: center; margin-top: 1.5rem; font-size: 0.85rem; color: var(--text-secondary); }

/* Captcha */
.captcha-box {
    background: var(--gradient-soft);
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
}
.captcha-question {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
    white-space: nowrap;
}
.captcha-question span { color: var(--primary); }
.captcha-input { flex: 1; }
.captcha-refresh {
    background: none;
    border: none;
    color: var(--primary);
    cursor: pointer;
    font-size: 1.1rem;
    padding: 4px;
    transition: transform 0.3s;
}
.captcha-refresh:hover { transform: rotate(180deg); }

/* ===== EMPTY STATE ===== */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-secondary);
}
.empty-state .empty-icon { font-size: 3rem; margin-bottom: 1rem; opacity: 0.3; }
.empty-state h3 { font-size: 1.1rem; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.empty-state p { font-size: 0.9rem; margin-bottom: 1rem; }

/* ===== CHILD DASHBOARD ===== */
.child-hero {
    background: var(--gradient);
    border-radius: var(--radius);
    padding: 2rem 1.5rem;
    color: #fff;
    text-align: center;
    margin-bottom: 1.5rem;
    position: relative;
    overflow: hidden;
}
.child-hero::after {
    content: '💰';
    position: absolute;
    font-size: 6rem;
    opacity: 0.1;
    right: -10px;
    bottom: -10px;
}
.child-hero h1 { font-size: 1.3rem; font-weight: 600; margin-bottom: 4px; }
.child-hero .greeting { font-size: 0.9rem; opacity: 0.9; }
.child-hero .balance-big {
    font-size: 2rem;
    font-weight: 800;
    margin-top: 1rem;
    letter-spacing: -0.5px;
}
.child-hero .balance-label { font-size: 0.8rem; opacity: 0.8; text-transform: uppercase; letter-spacing: 1px; margin-top: 4px; }

.child-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.75rem; margin-bottom: 1.5rem; }
.child-stat {
    background: #fff;
    border-radius: var(--radius);
    padding: 1rem;
    text-align: center;
    box-shadow: var(--shadow);
}
.child-stat .stat-label { font-size: 0.7rem; color: var(--text-secondary); text-transform: uppercase; font-weight: 600; letter-spacing: 0.5px; }
.child-stat .stat-value { font-size: 1rem; font-weight: 700; margin-top: 4px; }
.child-stat .stat-value.income { color: var(--secondary); }
.child-stat .stat-value.expense { color: var(--danger); }
.child-stat .stat-value.initial { color: var(--primary); }

/* ===== DELETE FORM ===== */
.delete-form { display: inline; }

/* ===== UTILITY ===== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-secondary); }
.text-small { font-size: 0.8rem; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }

.password-wrapper { position: relative; display: flex; align-items: center; }
.password-wrapper input { padding-right: 40px; width: 100%; }
.password-toggle { position: absolute; right: 10px; background: none; border: none; cursor: pointer; padding: 0; display: flex; align-items: center; justify-content: center; opacity: 0.6; transition: opacity 0.2s; }
.password-toggle:hover { opacity: 1; }

/* ===== RESPONSIVE ===== */
@media (max-width: 640px) {
    .container { padding: 1rem 0.75rem; }
    .summary-grid { grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }
    .summary-card .value { font-size: 1.2rem; }
    .summary-card .icon { font-size: 2rem; right: 10px; }
    .child-grid { grid-template-columns: 1fr; }
    .child-hero .balance-big { font-size: 1.6rem; }
    .child-stats { grid-template-columns: 1fr; }
    .page-header h1 { font-size: 1.25rem; }
    .page-header-row { flex-direction: column; align-items: flex-start; gap: 12px; }
    .auth-card { padding: 1.5rem; }
    .table { font-size: 0.8rem; }
    .table thead th, .table tbody td { padding: 8px 10px; }
    .navbar { padding: 0 0.75rem; }
    .navbar-brand { font-size: 1.25rem; }
    .navbar-brand span { display: none; }
    .navbar-user .badge { display: none; }
    .btn { padding: 8px 16px; font-size: 0.8rem; }
    .captcha-box { display: grid; grid-template-columns: 1fr auto; gap: 8px; }
    .captcha-question { grid-column: 1 / -1; text-align: center; width: 100%; }
    .captcha-input { width: 100%; }
    .captcha-refresh { margin: 0; }
    form .btn-primary { width: 100%; justify-content: center; margin-bottom: 8px; }
    form .btn-secondary { width: 100%; justify-content: center; }
    form > div[style*="display:flex"] { flex-direction: column; gap: 8px !important; }
}