:root {
    --bg: #f6efef;
    --bg-strong: #f1dddd;
    --card: rgba(255, 255, 255, 0.9);
    --card-solid: #ffffff;
    --text: #1f1f24;
    --muted: #6b7280;
    --line: #ead6d6;
    --primary: #c62828;
    --primary-dark: #8e1b1b;
    --primary-soft: rgba(198, 40, 40, 0.10);
    --success-bg: #eaf8ef;
    --success-text: #166534;
    --danger-bg: #fff1f1;
    --danger-text: #b42318;
    --warn-bg: #fff6e8;
    --warn-text: #b45309;
    --shadow: 0 20px 50px rgba(60, 20, 20, 0.08);
    --radius: 22px;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
}

body {
    font-family: Inter, Arial, Helvetica, sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at top left, #ffffff 0%, #f8eeee 30%, #f5e8e8 100%);
}

a {
    color: inherit;
}

.page-shell {
    min-height: 100vh;
    padding: 20px;
}

.page {
    max-width: 1180px;
    margin: 0 auto;
}

.glass,
.panel,
.box-card,
.summary-box,
.total-footer,
.login-card,
.panel-soft {
    background: var(--card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.62);
    box-shadow: var(--shadow);
    border-radius: var(--radius);
}

.panel,
.login-card,
.total-footer,
.summary-box,
.panel-soft {
    padding: 22px;
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

h1 {
    font-size: clamp(30px, 4vw, 42px);
    margin-bottom: 8px;
    line-height: 1.1;
}

h2 {
    font-size: 26px;
    margin-bottom: 14px;
}

h3 {
    font-size: 18px;
    margin-bottom: 14px;
}

.muted {
    color: var(--muted);
}

.stack > * + * {
    margin-top: 16px;
}

.gap-lg > * + * {
    margin-top: 22px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 700;
    font-size: 14px;
}

input,
select,
button,
.btn {
    font: inherit;
    border-radius: 14px;
}

input,
select {
    width: 100%;
    border: 1px solid var(--line);
    background: #fff;
    padding: 13px 14px;
    color: var(--text);
    outline: none;
    transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}

input:focus,
select:focus {
    border-color: rgba(198, 40, 40, 0.45);
    box-shadow: 0 0 0 4px rgba(198, 40, 40, 0.12);
}

button,
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    border: none;
    cursor: pointer;
    padding: 13px 18px;
    font-weight: 700;
    transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}

button:hover,
.btn:hover {
    transform: translateY(-1px);
}

.btn-primary,
button[type="submit"] {
    background: linear-gradient(135deg, var(--primary) 0%, #e53935 100%);
    color: #fff;
    box-shadow: 0 12px 24px rgba(198, 40, 40, 0.22);
}

.btn-primary:hover,
button[type="submit"]:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, #c62828 100%);
}

.btn-light {
    background: rgba(255, 255, 255, 0.86);
    color: var(--text);
    border: 1px solid var(--line);
}

.btn-small {
    padding: 10px 12px;
    font-size: 13px;
}

.btn-block {
    width: 100%;
}

.alert {
    border-radius: 16px;
    padding: 14px 16px;
    margin-bottom: 18px;
    font-weight: 600;
}

.alert.success {
    background: var(--success-bg);
    color: var(--success-text);
}

.alert.error {
    background: var(--danger-bg);
    color: var(--danger-text);
}

.topbar,
.panel-header,
.actions,
.filter-submit,
.metric,
.total-footer,
.box-card-top,
.product-meta {
    display: flex;
}

.topbar,
.panel-header {
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 24px;
}

.actions {
    gap: 10px;
    flex-wrap: wrap;
}

.filter-bar {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 24px;
}

.filter-submit {
    align-items: end;
}

.grid-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 18px;
}

.box-card {
    padding: 22px;
    text-decoration: none;
    transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    border: 1px solid rgba(255, 255, 255, 0.55);
}

.box-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 28px 55px rgba(60, 20, 20, 0.12);
}

.fancy-card {
    position: relative;
    overflow: hidden;
}

.fancy-card::before {
    content: "";
    position: absolute;
    inset: 0 auto auto 0;
    width: 140px;
    height: 140px;
    background: radial-gradient(circle, rgba(198, 40, 40, 0.16), rgba(198, 40, 40, 0));
    pointer-events: none;
}

.box-card-top {
    justify-content: space-between;
    align-items: center;
    margin-bottom: 18px;
    gap: 10px;
}

.box-title {
    font-size: 22px;
    font-weight: 800;
}

.mini-pill,
.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 800;
}

.mini-pill {
    padding: 8px 10px;
    background: var(--primary-soft);
    color: var(--primary);
}

.metric {
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    padding: 12px 0;
    border-top: 1px solid rgba(234, 214, 214, 0.9);
}

.metric strong {
    font-size: 19px;
}

.metric.small strong {
    font-size: 16px;
}

.metric.warn strong {
    color: var(--warn-text);
}

.metric.ok strong {
    color: #15803d;
}

.highlight-total {
    margin-top: 24px;
    background: linear-gradient(135deg, rgba(198, 40, 40, 0.96), rgba(229, 57, 53, 0.92));
    color: #fff;
}

.total-footer {
    justify-content: space-between;
    align-items: center;
    font-size: 20px;
    font-weight: 800;
}

.inline-grid.two {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.summary-strip {
    margin-bottom: 20px;
}

.summary-box {
    display: inline-flex;
    flex-direction: column;
    min-width: min(100%, 280px);
}

.summary-box span {
    color: var(--muted);
    margin-bottom: 8px;
}

.summary-box strong {
    font-size: clamp(28px, 4vw, 34px);
}

.table-wrap {
    overflow-x: auto;
    border-radius: 18px;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 760px;
}

th,
td {
    padding: 14px 12px;
    border-bottom: 1px solid #f2e6e6;
    text-align: left;
    vertical-align: middle;
}

thead th {
    position: sticky;
    top: 0;
    background: #fff8f8;
    font-size: 13px;
    letter-spacing: .02em;
    text-transform: uppercase;
    color: var(--muted);
}

.badge {
    padding: 8px 11px;
}

.badge.paid {
    background: var(--success-bg);
    color: var(--success-text);
}

.badge.unpaid {
    background: var(--warn-bg);
    color: var(--warn-text);
}

/* LOGIN */
.login-screen {
    min-height: calc(100vh - 40px);
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    gap: 32px;
    align-items: center;
}

.login-side {
    padding: 24px 10px 24px 8px;
}

.login-logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 74px;
    height: 74px;
    border-radius: 20px;
    background: linear-gradient(135deg, var(--primary), #ef5350);
    color: #fff;
    font-size: 28px;
    font-weight: 800;
    letter-spacing: 1px;
    box-shadow: 0 14px 28px rgba(198, 40, 40, 0.22);
    margin-bottom: 20px;
}

.login-side h1 {
    margin-bottom: 12px;
}

.login-side p {
    max-width: 520px;
    color: var(--muted);
    font-size: 17px;
    line-height: 1.65;
    margin-bottom: 0;
}

.login-card {
    max-width: 560px;
    width: 100%;
    margin-left: auto;
    padding: 34px;
    background: rgba(255, 255, 255, 0.94);
}

.login-card.large {
    min-height: 470px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.login-card-head {
    margin-bottom: 26px;
}

.login-card-head h2 {
    margin-bottom: 8px;
    font-size: 30px;
}

.login-card-head p {
    font-size: 15px;
}

.login-form {
    max-width: 100%;
}

.login-form input {
    padding: 15px 16px;
    font-size: 15px;
}

.login-form button {
    margin-top: 8px;
    min-height: 52px;
    font-size: 16px;
}

.login-help {
    margin-top: 16px;
    color: var(--muted);
    font-size: 14px;
    text-align: center;
}

.product-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 18px;
    box-shadow: 0 10px 25px rgba(60, 20, 20, 0.05);
}

.product-card + .product-card {
    margin-top: 14px;
}

.product-meta {
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 8px;
    color: var(--muted);
}

.product-meta strong {
    color: var(--text);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.product-card-form {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 18px;
    box-shadow: 0 10px 24px rgba(60, 20, 20, 0.06);
}

.product-card-form h3 {
    margin: 0 0 14px;
    font-size: 18px;
    line-height: 1.3;
}

.product-meta {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 8px 0;
    border-bottom: 1px solid #f5e7e7;
}

.product-meta:last-of-type {
    margin-bottom: 12px;
}

.product-meta span {
    color: var(--muted);
    font-size: 14px;
}

.product-meta strong {
    color: var(--text);
    font-size: 15px;
}

.quantity-box {
    margin-top: 14px;
}

.quantity-box label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.quantity-box input {
    width: 100%;
}

/* RESPONSIVE */
@media (max-width: 980px) {
    .login-screen {
        grid-template-columns: 1fr;
        align-items: stretch;
    }

    .login-card {
        margin: 0;
        max-width: 100%;
    }

    .products-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 860px) {
    .compact-mobile,
    .panel-header,
    .topbar {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-bar,
    .inline-grid.two {
        grid-template-columns: 1fr;
    }

    .total-footer {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
    }

    .page-shell {
        padding: 14px;
    }

    .page {
        width: 100%;
    }

    .login-card.large {
        min-height: auto;
    }
}

@media (max-width: 640px) {
    .products-grid {
        grid-template-columns: 1fr;
    }

    .panel,
    .login-card,
    .total-footer,
    .summary-box,
    .panel-soft {
        padding: 18px;
    }

    .login-side {
        padding: 6px 0 0;
    }

    .login-logo {
        width: 64px;
        height: 64px;
        font-size: 24px;
        border-radius: 18px;
    }

    .login-card-head h2 {
        font-size: 26px;
    }

    h1 {
        font-size: 30px;
    }

    table {
        min-width: 620px;
    }
}

@page {
    size: A4 portrait;
    margin: 12mm;
}

@media print {
    html,
    body {
        margin: 0 !important;
        padding: 0 !important;
        background: #ffffff !important;
        color: #000000 !important;
        font-size: 12px !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    body * {
        box-shadow: none !important;
        text-shadow: none !important;
    }

    .page-shell {
        min-height: auto !important;
        padding: 0 !important;
        background: #ffffff !important;
    }

    .page {
        max-width: 100% !important;
        width: 100% !important;
        margin: 0 !important;
    }

    .no-print,
    .actions,
    .btn,
    button,
    .filter-bar,
    form.no-print {
        display: none !important;
    }

    .glass,
    .panel,
    .box-card,
    .summary-box,
    .total-footer,
    .login-card,
    .panel-soft,
    .product-card,
    .product-card-form {
        background: #ffffff !important;
        border: 1px solid #d9d9d9 !important;
        border-radius: 8px !important;
        box-shadow: none !important;
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
    }

    .panel,
    .box-card,
    .summary-box,
    .total-footer,
    .panel-soft {
        padding: 12px !important;
    }

    .topbar,
    .panel-header {
        display: block !important;
        margin-bottom: 12px !important;
    }

    .topbar h1,
    .panel-header h2,
    h1,
    h2,
    h3 {
        color: #000000 !important;
        page-break-after: avoid;
        break-after: avoid;
    }

    h1 {
        font-size: 22px !important;
        margin-bottom: 6px !important;
    }

    h2 {
        font-size: 16px !important;
        margin-bottom: 8px !important;
    }

    h3 {
        font-size: 14px !important;
        margin-bottom: 6px !important;
    }

    .muted {
        color: #444444 !important;
    }

    .grid-cards {
        display: block !important;
        gap: 0 !important;
    }

    .grid-cards > * {
        display: block !important;
        width: 100% !important;
        margin-bottom: 10px !important;
        page-break-inside: avoid;
        break-inside: avoid;
    }

    .metric,
    .box-card-top,
    .product-meta,
    .total-footer {
        display: flex !important;
        justify-content: space-between !important;
        align-items: center !important;
        gap: 8px !important;
    }

    .mini-pill,
    .badge {
        border: 1px solid #bdbdbd !important;
        background: #ffffff !important;
        color: #000000 !important;
        padding: 4px 8px !important;
    }

    .table-wrap {
        overflow: visible !important;
        border-radius: 0 !important;
    }

    table {
        width: 100% !important;
        min-width: 0 !important;
        border-collapse: collapse !important;
        table-layout: fixed !important;
        page-break-inside: auto;
    }

    thead {
        display: table-header-group !important;
    }

    tfoot {
        display: table-row-group !important;
    }

    tr {
        page-break-inside: avoid !important;
        break-inside: avoid !important;
    }

    th,
    td {
        border: 1px solid #d6d6d6 !important;
        padding: 6px 7px !important;
        font-size: 11px !important;
        line-height: 1.3 !important;
        color: #000000 !important;
        background: #ffffff !important;
        word-break: break-word !important;
        white-space: normal !important;
        vertical-align: top !important;
    }

    thead th {
        position: static !important;
        top: auto !important;
        background: #f2f2f2 !important;
        text-transform: none !important;
        letter-spacing: 0 !important;
    }

    a,
    a:visited {
        color: #000000 !important;
        text-decoration: none !important;
    }

    .panel,
    .box-card,
    .summary-box,
    .total-footer {
        page-break-inside: avoid !important;
        break-inside: avoid !important;
    }

    .print-break {
        page-break-before: always !important;
        break-before: page !important;
    }
}