:root {
    --color-bg: #f5f6f8;
    --color-surface: #ffffff;
    --color-border: #e1e4e8;
    --color-text: #1f2328;
    --color-muted: #6b7280;
    --color-primary: #0f6e4a;
    --color-primary-dark: #0b5539;
    --color-danger: #b3261e;
    --color-success-bg: #e6f4ea;
    --color-success-text: #1e6b3a;
    --color-error-bg: #fdecea;
    --color-error-text: #a02622;
    --radius: 8px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
}

a { color: var(--color-primary); }

.topbar {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}
.topbar-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0.75rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}
.brand {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--color-text);
    text-decoration: none;
}
.mainnav { display: flex; gap: 1rem; flex: 1; flex-wrap: wrap; }
.mainnav a { text-decoration: none; color: var(--color-muted); font-weight: 500; }
.mainnav a:hover { color: var(--color-primary); }
.topbar-user { display: flex; align-items: center; gap: 1rem; color: var(--color-muted); font-size: 0.9rem; }
.topbar-user a { text-decoration: none; }

.content {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1.5rem 1.25rem 4rem;
}

h1 { font-size: 1.6rem; margin-bottom: 0.75rem; }
h2 { font-size: 1.15rem; margin-top: 0; }
.muted { color: var(--color-muted); }

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.25rem;
    margin-bottom: 1.25rem;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
    align-items: start;
}
@media (max-width: 800px) {
    .grid-2 { grid-template-columns: 1fr; }
}

form label {
    display: block;
    margin-bottom: 0.9rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text);
}
form input[type="text"],
form input[type="email"],
form input[type="password"],
form input[type="date"],
form input[type="file"],
form select {
    display: block;
    width: 100%;
    margin-top: 0.3rem;
    padding: 0.55rem 0.65rem;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: 1rem;
    font-family: inherit;
    background: #fff;
    color: var(--color-text);
}

.btn {
    display: inline-block;
    padding: 0.6rem 1.1rem;
    border-radius: 6px;
    border: 1px solid transparent;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
}
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); }
.btn-secondary { background: #fff; color: var(--color-primary); border-color: var(--color-primary); }
.btn-link-danger {
    background: none; border: none; padding: 0; color: var(--color-danger);
    text-decoration: underline; cursor: pointer; font-size: 0.85rem;
}

.table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.table th, .table td { text-align: left; padding: 0.55rem 0.6rem; border-bottom: 1px solid var(--color-border); }
.table thead th { color: var(--color-muted); font-weight: 600; font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.02em; }
.table tfoot td { border-top: 2px solid var(--color-border); border-bottom: none; }
.totals-row { font-weight: 700; }

.badge { padding: 0.15rem 0.5rem; border-radius: 999px; font-size: 0.78rem; font-weight: 600; }
.badge-ok { background: var(--color-success-bg); color: var(--color-success-text); }
.badge-off { background: var(--color-error-bg); color: var(--color-error-text); }

.highlight-box {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--color-success-bg);
    color: var(--color-success-text);
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    margin: 1rem 0;
    font-size: 1.05rem;
}
.highlight-box strong { font-size: 1.4rem; }

.flash { padding: 0.75rem 1rem; border-radius: 6px; margin-bottom: 1rem; font-size: 0.92rem; }
.flash-success { background: var(--color-success-bg); color: var(--color-success-text); }
.flash-error { background: var(--color-error-bg); color: var(--color-error-text); }

.auth-box {
    max-width: 420px;
    margin: 2.5rem auto;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 2rem;
}
.auth-box h1 { text-align: center; margin-bottom: 1.25rem; }

.filter-form { display: flex; gap: 1.25rem; align-items: end; margin-bottom: 1rem; flex-wrap: wrap; }
.filter-form label { font-size: 0.85rem; font-weight: 600; color: var(--color-muted); }
.filter-form select { margin-top: 0.3rem; padding: 0.45rem 0.6rem; border-radius: 6px; border: 1px solid var(--color-border); }

.footer { text-align: center; color: var(--color-muted); font-size: 0.85rem; padding: 2rem 0; }

.inline-form { display: inline-block; margin-top: 0.5rem; }

.receipt-row {
    display: grid;
    grid-template-columns: 120px 1fr auto;
    gap: 1rem;
    align-items: start;
    padding: 1rem 0;
    border-bottom: 1px solid var(--color-border);
}
.receipt-row:first-of-type { padding-top: 0; }
.receipt-row-preview { text-align: center; }
.receipt-thumb {
    max-width: 100%;
    max-height: 140px;
    border-radius: 6px;
    border: 1px solid var(--color-border);
    display: block;
    margin: 0 auto;
}
.receipt-row-filename {
    font-size: 0.78rem;
    margin: 0.4rem 0 0;
    word-break: break-all;
}
.ai-note { font-size: 0.78rem; margin: 0.3rem 0 0; font-weight: 600; }
.ai-note-ok { color: var(--color-success-text); }
.ai-note-error { color: var(--color-error-text); }
.receipt-row-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 1rem;
}
.receipt-row-grid label { margin-bottom: 0.6rem; }
.receipt-row-remove { padding-top: 0.2rem; }
.btn-small { padding: 0.35rem 0.6rem; font-size: 0.8rem; }

@media (max-width: 700px) {
    .receipt-row { grid-template-columns: 1fr; }
    .receipt-row-remove { text-align: right; }
    .receipt-row-grid { grid-template-columns: 1fr; }
}

#file-count-hint { margin-top: -0.5rem; }
.file-count-warning { color: var(--color-error-text); font-weight: 600; }