/* SWC PartsOrder — mobile-first, single stylesheet, no framework */

:root {
    --color-primary: #1a7f37;
    --color-primary-dark: #14612a;
    --color-danger: #c0392b;
    --color-bg: #f5f6f7;
    --color-card: #ffffff;
    --color-text: #1c1f22;
    --color-muted: #6b7280;
    --color-border: #e1e4e8;
    --radius: 10px;
    --sticky-bar-height: 72px;
}

* {
    box-sizing: border-box;
}

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

body {
    background: var(--color-bg);
    color: var(--color-text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 17px;
    line-height: 1.5;
    padding-bottom: var(--sticky-bar-height);
}

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

/* --- Top bar --- */
.topbar {
    position: sticky;
    top: 0;
    z-index: 10;
    background: var(--color-card);
    border-bottom: 1px solid var(--color-border);
    padding: 14px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.topbar h1 {
    font-size: 19px;
    margin: 0;
}

.cart-link {
    position: relative;
    text-decoration: none;
    font-size: 24px;
    padding: 4px 8px;
}

.cart-badge {
    position: absolute;
    top: -2px;
    right: -2px;
    background: var(--color-danger);
    color: #fff;
    font-size: 12px;
    min-width: 18px;
    height: 18px;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 4px;
}

.cart-badge[data-count="0"] {
    display: none;
}

/* --- Page container --- */
.page {
    padding: 16px;
    max-width: 480px;
    margin: 0 auto;
}

/* --- Product cards (grid, no tables) --- */
.product-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.product-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 10px;
    display: flex;
    flex-direction: column;
    color: inherit;
    text-decoration: none;
}

.product-card img,
.product-card .img-placeholder {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    border-radius: 6px;
    background: var(--color-bg);
}

.img-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-muted);
    font-size: 13px;
}

.product-name {
    font-size: 15px;
    font-weight: 600;
    margin: 8px 0 2px;
}

.product-price {
    color: var(--color-primary);
    font-weight: 700;
    margin-bottom: 8px;
}

.product-stock-note {
    font-size: 12px;
    color: var(--color-muted);
    margin-bottom: 8px;
}

/* --- Buttons --- */
.btn {
    display: block;
    width: 100%;
    min-height: 48px;
    border: none;
    border-radius: var(--radius);
    background: var(--color-primary);
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    padding: 12px;
}

.btn:active {
    background: var(--color-primary-dark);
}

.btn:disabled {
    background: var(--color-border);
    color: var(--color-muted);
    cursor: not-allowed;
}

.btn-small {
    min-height: 40px;
    font-size: 14px;
    padding: 8px;
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

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

/* --- Sticky bottom action bar --- */
.sticky-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 20;
    background: var(--color-card);
    border-top: 1px solid var(--color-border);
    padding: 10px 16px;
    padding-bottom: calc(10px + env(safe-area-inset-bottom));
}

.sticky-bar .btn {
    margin: 0 auto;
    max-width: 480px;
}

/* --- Cart lines --- */
.cart-line {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 12px;
    margin-bottom: 10px;
    display: flex;
    gap: 10px;
    align-items: center;
}

.cart-line-img,
.cart-line .img-placeholder {
    width: 56px;
    height: 56px;
    border-radius: 6px;
    object-fit: cover;
    flex-shrink: 0;
}

.cart-line-info {
    flex: 1;
    min-width: 0;
}

.cart-line-name {
    font-weight: 600;
    font-size: 15px;
}

.cart-line-price {
    color: var(--color-muted);
    font-size: 13px;
}

.qty-control {
    display: flex;
    align-items: center;
    gap: 6px;
}

.qty-btn {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    border: 1px solid var(--color-border);
    background: var(--color-bg);
    font-size: 18px;
    line-height: 1;
    cursor: pointer;
}

.qty-value {
    min-width: 24px;
    text-align: center;
    font-weight: 600;
}

.remove-link {
    color: var(--color-danger);
    font-size: 13px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px 0;
}

.cart-empty {
    text-align: center;
    color: var(--color-muted);
    padding: 40px 16px;
}

/* --- Summary rows --- */
.summary-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--color-border);
}

.summary-row.total {
    font-weight: 700;
    font-size: 18px;
    border-bottom: none;
    padding-top: 12px;
}

/* --- Forms --- */
.form-group {
    margin-bottom: 14px;
}

label {
    display: block;
    font-weight: 600;
    margin-bottom: 6px;
    font-size: 14px;
}

input[type="text"],
input[type="tel"],
input[type="password"],
input[type="number"],
select,
textarea {
    width: 100%;
    min-height: 48px;
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 16px;
    background: var(--color-card);
    color: var(--color-text);
}

textarea {
    min-height: 80px;
    resize: vertical;
}

.field-error {
    color: var(--color-danger);
    font-size: 13px;
    margin-top: 4px;
    display: none;
}

.field-error.show {
    display: block;
}

/* --- Notice / banner --- */
.notice {
    background: #eaf7ee;
    border: 1px solid #b7e4c7;
    color: var(--color-primary-dark);
    border-radius: var(--radius);
    padding: 12px;
    font-size: 14px;
    margin-bottom: 16px;
}

.notice-muted {
    background: #f0f1f2;
    border-color: var(--color-border);
    color: var(--color-muted);
}

/* --- Payment / QR --- */
.order-code {
    text-align: center;
    font-size: 22px;
    font-weight: 800;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.order-amount {
    text-align: center;
    font-size: 28px;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 16px;
}

.qr-box {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 16px;
    text-align: center;
    margin-bottom: 16px;
}

.qr-box img {
    max-width: 100%;
    border-radius: 6px;
}

.qr-placeholder {
    padding: 40px 16px;
    color: var(--color-muted);
    font-size: 14px;
}

h2 {
    font-size: 18px;
    margin: 0 0 12px;
}

/* --- Admin (desktop-oriented, not mobile-first) --- */
body:has(.admin-page) {
    padding-bottom: 0;
}

.admin-user {
    font-size: 13px;
    color: var(--color-muted);
}

.admin-nav {
    display: flex;
    gap: 4px;
    padding: 8px 16px;
    background: var(--color-card);
    border-bottom: 1px solid var(--color-border);
    overflow-x: auto;
}

.admin-nav a {
    display: inline-block;
    padding: 8px 14px;
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--color-text);
    font-size: 14px;
    white-space: nowrap;
}

.admin-nav a:hover {
    background: var(--color-bg);
}

.admin-page {
    max-width: 960px;
}

.table-scroll {
    overflow-x: auto;
    margin-bottom: 16px;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 14px;
    margin-bottom: 0;
}

.admin-table th,
.admin-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--color-border);
    text-align: left;
    vertical-align: middle;
}

.admin-table th {
    background: var(--color-bg);
    font-size: 13px;
    color: var(--color-muted);
}

.admin-table tr:last-child td {
    border-bottom: none;
}

.admin-toolbar {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 16px;
    align-items: flex-end;
}

.admin-toolbar .form-group {
    margin-bottom: 0;
}

.status-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
}

.status-pending_payment { background: #fff3cd; color: #7a5b00; }
.status-slip_uploaded   { background: #cfe2ff; color: #084298; }
.status-paid            { background: #d1e7dd; color: #0a5132; }
.status-rejected        { background: #f8d7da; color: #842029; }
.status-cancelled       { background: #e2e3e5; color: #41464b; }

.admin-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 16px;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
    margin-bottom: 16px;
}

.dashboard-stat {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 16px;
    text-align: center;
}

.dashboard-stat .value {
    font-size: 28px;
    font-weight: 800;
}

.dashboard-stat .label {
    font-size: 13px;
    color: var(--color-muted);
}

.slip-thumb {
    max-width: 240px;
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    display: block;
    margin-bottom: 8px;
}

.action-row {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 12px;
}

.action-row .btn {
    width: auto;
    min-width: 120px;
}

.login-page {
    max-width: 360px;
    margin: 60px auto;
    padding: 24px;
}