:root {
    --bg: #f4efe8;
    --surface: #fffdf9;
    --surface-2: #f6f0e7;
    --line: #dbcdbd;
    --text: #1c1917;
    --muted: #6f6257;
    --primary: #1f6f5f;
    --primary-strong: #12483e;
    --danger: #9d3c2d;
    --success: #1f7a4d;
    --shadow: 0 20px 45px rgba(44, 34, 24, 0.08);
    --radius: 22px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background:
        radial-gradient(circle at top left, rgba(31, 111, 95, 0.16), transparent 25%),
        radial-gradient(circle at bottom right, rgba(210, 140, 78, 0.18), transparent 20%),
        var(--bg);
    color: var(--text);
}

a {
    color: var(--primary);
    text-decoration: none;
}

.guest-shell,
.app-shell {
    min-height: 100vh;
}

.guest-layout {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    min-height: 100vh;
}

.guest-hero {
    padding: 4rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.eyebrow {
    font-size: 0.85rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 1rem;
}

.guest-hero h1 {
    font-size: clamp(2.2rem, 4vw, 4.6rem);
    line-height: 1.05;
    margin: 0 0 1rem;
    max-width: 12ch;
}

.guest-hero p {
    max-width: 52ch;
    color: var(--muted);
    font-size: 1.05rem;
}

.guest-card-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.auth-card {
    width: min(100%, 480px);
    background: rgba(255, 253, 249, 0.92);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(219, 205, 189, 0.9);
    box-shadow: var(--shadow);
    border-radius: var(--radius);
    padding: 2rem;
}

.auth-card-wide {
    width: min(100%, 760px);
}

.auth-head h2 {
    margin: 0 0 0.5rem;
}

.auth-head p {
    margin: 0 0 1.5rem;
    color: var(--muted);
}

.grid-form {
    display: grid;
    gap: 1rem;
}

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

.grid-form label {
    display: grid;
    gap: 0.45rem;
    font-size: 0.95rem;
}

.grid-form .full {
    grid-column: 1 / -1;
}

input,
textarea,
select,
button {
    font: inherit;
}

input,
textarea,
select {
    width: 100%;
    border: 1px solid var(--line);
    background: var(--surface);
    border-radius: 14px;
    padding: 0.9rem 1rem;
    color: var(--text);
}

textarea {
    min-height: 96px;
    resize: vertical;
}

.btn-primary {
    border: 0;
    background: linear-gradient(135deg, var(--primary), var(--primary-strong));
    color: #fff;
    padding: 0.95rem 1.2rem;
    border-radius: 14px;
    cursor: pointer;
    box-shadow: 0 14px 30px rgba(18, 72, 62, 0.25);
}

.auth-foot {
    margin: 1rem 0 0;
    color: var(--muted);
}

.app-shell {
    display: grid;
    grid-template-columns: 280px 1fr;
}

.sidebar {
    min-height: 100vh;
    padding: 1.5rem;
    background: rgba(28, 25, 23, 0.96);
    color: #f5f0e8;
    position: sticky;
    top: 0;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    margin-bottom: 2rem;
}

.brand-mark {
    width: 46px;
    height: 46px;
    border-radius: 14px;
    background: linear-gradient(135deg, #cf8f52, #f4c487);
    color: #24150e;
    display: grid;
    place-items: center;
    font-weight: 700;
}

.brand small {
    display: block;
    color: rgba(245, 240, 232, 0.7);
}

.nav-links {
    display: grid;
    gap: 0.45rem;
}

.nav-links a {
    color: #f5f0e8;
    padding: 0.85rem 1rem;
    border-radius: 14px;
}

.nav-links a:hover {
    background: rgba(255, 255, 255, 0.08);
}

.nav-links a.active {
    background: linear-gradient(135deg, rgba(207, 143, 82, 0.18), rgba(31, 111, 95, 0.3));
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.main-panel {
    padding: 2rem;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.topbar h1 {
    margin: 0 0 0.35rem;
}

.topbar p,
.topbar-user span {
    margin: 0;
    color: var(--muted);
}

.topbar-user {
    padding: 1rem 1.2rem;
    background: rgba(255, 253, 249, 0.85);
    border: 1px solid var(--line);
    border-radius: 18px;
}

.dashboard-grid,
.panel-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
}

.page-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
}

.page-head p {
    margin: 0.35rem 0 0;
    color: var(--muted);
}

.table-card,
.form-card {
    background: rgba(255, 253, 249, 0.9);
    border: 1px solid rgba(219, 205, 189, 0.92);
    border-radius: 22px;
    padding: 1.3rem;
    box-shadow: var(--shadow);
}

.table-wrap {
    overflow-x: auto;
}

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

.data-table th,
.data-table td {
    text-align: left;
    padding: 0.9rem 0.75rem;
    border-bottom: 1px solid var(--line);
    vertical-align: top;
}

.data-table th {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
}

.data-table tr:last-child td {
    border-bottom: 0;
}

.stack-text {
    display: grid;
    gap: 0.2rem;
}

.stack-text small,
.muted {
    color: var(--muted);
}

.status-pill {
    display: inline-flex;
    align-items: center;
    padding: 0.35rem 0.7rem;
    border-radius: 999px;
    font-size: 0.82rem;
    background: rgba(31, 111, 95, 0.1);
    color: var(--primary);
}

.status-pill.inactive {
    background: rgba(157, 60, 45, 0.1);
    color: var(--danger);
}

.toolbar {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.toolbar input,
.toolbar select {
    max-width: 260px;
}

.toolbar textarea {
    max-width: 340px;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--line);
    background: var(--surface);
    color: var(--text);
    padding: 0.85rem 1rem;
    border-radius: 14px;
}

.inline-actions {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.pagination-links {
    display: flex;
    gap: 0.55rem;
    flex-wrap: wrap;
}

.pagination-links a,
.pagination-links span {
    min-width: 42px;
    text-align: center;
    padding: 0.6rem 0.8rem;
    border-radius: 12px;
    border: 1px solid var(--line);
    background: var(--surface);
}

.pagination-links .active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.form-grid .full {
    grid-column: 1 / -1;
}

.section-space {
    display: grid;
    gap: 1.2rem;
}

.item-grid {
    display: grid;
    gap: 1rem;
}

.item-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: 0.8rem;
    padding: 1rem;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: var(--surface);
}

.item-row.pos-row {
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr 1fr;
}

.invoice-shell {
    max-width: 920px;
    margin: 2rem auto;
    background: #fff;
    padding: 2rem;
    border-radius: 24px;
    box-shadow: var(--shadow);
}

.invoice-head,
.invoice-meta {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.invoice-meta {
    margin: 1.25rem 0;
    padding: 1rem 0;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

@media print {
    .sidebar,
    .topbar,
    .inline-actions,
    .alert {
        display: none !important;
    }

    body {
        background: #fff;
    }

    .main-panel,
    .invoice-shell {
        padding: 0;
        box-shadow: none;
        max-width: none;
        margin: 0;
    }
}

.item-row > label {
    display: grid;
    gap: 0.4rem;
}

.hint-text {
    margin: 0;
    color: var(--muted);
    font-size: 0.92rem;
}

.totals-box {
    display: grid;
    gap: 0.55rem;
    padding: 1rem;
    border-radius: 18px;
    border: 1px solid var(--line);
    background: var(--surface-2);
}

.totals-box strong {
    font-size: 1.1rem;
}

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

.metric-card {
    background: rgba(255, 253, 249, 0.9);
    border: 1px solid rgba(219, 205, 189, 0.92);
    border-radius: 22px;
    padding: 1.25rem;
    box-shadow: var(--shadow);
}

.metric-card strong {
    display: block;
    font-size: 1.9rem;
    margin-top: 0.45rem;
}

.metric-card small {
    color: var(--muted);
}

.panel-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: 1rem;
}

.stat-card,
.panel {
    background: rgba(255, 253, 249, 0.88);
    border: 1px solid rgba(219, 205, 189, 0.92);
    border-radius: 22px;
    padding: 1.4rem;
    box-shadow: var(--shadow);
}

.stat-card span,
.panel h3 {
    display: block;
    margin-bottom: 0.5rem;
}

.stat-card strong {
    font-size: 2rem;
}

.stat-card small,
.panel li {
    color: var(--muted);
}

.panel ul {
    margin: 0;
    padding-left: 1rem;
}

.alert {
    border-radius: 16px;
    padding: 0.9rem 1rem;
    margin-bottom: 1rem;
    border: 1px solid;
}

.alert.success {
    background: rgba(31, 122, 77, 0.08);
    color: var(--success);
    border-color: rgba(31, 122, 77, 0.22);
}

.alert.error {
    background: rgba(157, 60, 45, 0.08);
    color: var(--danger);
    border-color: rgba(157, 60, 45, 0.22);
}

@media (max-width: 980px) {
    .guest-layout,
    .app-shell,
    .dashboard-grid,
    .panel-grid,
    .grid-form.two-col {
        grid-template-columns: 1fr;
    }

    .sidebar {
        min-height: auto;
        position: static;
    }

    .guest-hero,
    .main-panel,
    .guest-card-wrap {
        padding: 1.25rem;
    }

    .topbar {
        flex-direction: column;
        align-items: flex-start;
    }

    .page-head,
    .pagination {
        flex-direction: column;
        align-items: flex-start;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .item-row {
        grid-template-columns: 1fr;
    }

    .item-row.pos-row {
        grid-template-columns: 1fr;
    }

    .metric-grid {
        grid-template-columns: 1fr;
    }
}