/* ============================================================
   KidsMarket — Component primitives
   Ported from kids-shop/project/styles.css
   ============================================================ */

/* Buttons ---------------------------------------------------- */
.km-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--km-font-display);
    font-weight: 700;
    font-size: 15px;
    line-height: 1;
    padding: 12px 18px;
    border-radius: var(--km-r-3);
    border: 1.5px solid transparent;
    cursor: pointer;
    transition: transform .12s ease, background .15s, border-color .15s, color .15s, box-shadow .15s;
    white-space: nowrap;
    user-select: none;
    text-decoration: none;
}
.km-btn:active { transform: translateY(1px); }
.km-btn:focus-visible { outline: none; box-shadow: var(--km-sh-focus); }
.km-btn.sm { padding: 8px 12px; font-size: 13px; border-radius: var(--km-r-2); }
.km-btn.lg { padding: 16px 24px; font-size: 17px; border-radius: var(--km-r-4); }
.km-btn .bi { font-size: 1.05em; line-height: 1; }

.km-btn.primary { background: var(--km-primary); color: #fff; }
.km-btn.primary:hover { background: var(--km-primary-hover); color: #fff; }

.km-btn.secondary {
    background: var(--km-paper); color: var(--km-text);
    border-color: var(--km-border);
}
.km-btn.secondary:hover { border-color: var(--km-ink-400); background: var(--km-ink-50); color: var(--km-text); }

.km-btn.danger { background: var(--km-danger); color: #fff; }
.km-btn.danger:hover { background: #a82d2d; color: #fff; }

.km-btn.ghost { background: transparent; color: var(--km-text); }
.km-btn.ghost:hover { background: var(--km-ink-100); color: var(--km-text); }

.km-btn.sage { background: var(--km-secondary); color: #fff; }
.km-btn.sage:hover { background: var(--km-sage-600); color: #fff; }

.km-btn[disabled], .km-btn[aria-disabled="true"] {
    opacity: 0.55; cursor: not-allowed; transform: none;
}

/* Chips & status -------------------------------------------- */
.km-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--km-font-body);
    font-weight: 600;
    font-size: 12px;
    padding: 4px 10px;
    border-radius: var(--km-r-pill);
    background: var(--km-ink-100);
    color: var(--km-ink-700);
    line-height: 1.4;
}
.km-chip.lg { font-size: 13px; padding: 6px 12px; }
.km-chip .bi { font-size: 0.95em; }
.km-chip.coral    { background: var(--km-coral-100); color: var(--km-coral-700); }
.km-chip.sage     { background: var(--km-sage-100); color: var(--km-sage-700); }
.km-chip.sun      { background: #fff0c8; color: #8a5b00; }
.km-chip.sky      { background: var(--km-info-bg); color: var(--km-info); }
.km-chip.plum     { background: #f1e5f9; color: #6a3489; }
/* NFR-41: semantic chips get a border so they're distinguishable without relying on hue. */
.km-chip.success  { background: #e0f2e6; color: var(--km-success); border: 1px solid currentColor; }
.km-chip.warning  { background: var(--km-warning-bg); color: var(--km-warning); border: 1px solid currentColor; }
.km-chip.danger   { background: var(--km-danger-bg); color: var(--km-danger); border: 1px solid currentColor; }
.km-chip.outline {
    background: transparent;
    box-shadow: inset 0 0 0 1.5px currentColor;
    color: var(--km-ink-700);
}

/* Status pills (paired with icon, never color-only) */
.km-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--km-font-display);
    font-weight: 700;
    font-size: 12px;
    padding: 4px 10px 4px 8px;
    border-radius: var(--km-r-pill);
    line-height: 1.4;
    /* NFR-41: a border gives a non-colour (shape) cue in addition to the icon + text label,
       so statuses remain distinguishable for colour-blind users and in grayscale. */
    border: 1.5px solid currentColor;
}
.km-status .bi { font-size: 14px; }
/* Each status pill always carries a distinct icon (rendered by the status components) and text. */
.km-status.pending    { background: var(--km-warning-bg); color: var(--km-warning); }
.km-status.confirmed  { background: var(--km-info-bg);    color: var(--km-info); }
.km-status.processing { background: #ece5f5;              color: #6a3489; }
.km-status.shipped    { background: #e0f2e6;              color: var(--km-success); }
.km-status.delivered  { background: var(--km-sage-100);   color: var(--km-sage-700); }
.km-status.cancelled  { background: var(--km-ink-100);    color: var(--km-ink-700); }
.km-status.refunded   { background: var(--km-danger-bg);  color: var(--km-danger); }

/* Inputs ---------------------------------------------------- */
.km-input,
.km-select,
.km-textarea {
    display: block;
    width: 100%;
    font-family: var(--km-font-body);
    font-size: 15px;
    color: var(--km-text);
    background: var(--km-paper);
    border: 1.5px solid var(--km-border);
    border-radius: var(--km-r-3);
    padding: 12px 14px;
    transition: border-color .15s, box-shadow .15s;
}
.km-input:focus, .km-select:focus, .km-textarea:focus {
    outline: none;
    border-color: var(--km-primary);
    box-shadow: var(--km-sh-focus);
}
.km-input.invalid, .km-select.invalid, .km-textarea.invalid {
    border-color: var(--km-danger);
}
.km-input[disabled] { background: var(--km-ink-50); color: var(--km-muted); }

.km-label {
    display: block;
    font-family: var(--km-font-body);
    font-weight: 600;
    font-size: 13px;
    color: var(--km-ink-700);
    margin-bottom: 6px;
}
.km-help { font-size: 12px; color: var(--km-muted); margin-top: 4px; }
.km-error { font-size: 12px; color: var(--km-danger); margin-top: 4px; display: flex; gap: 4px; align-items: center; }

.km-check {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    cursor: pointer;
}
.km-check input { accent-color: var(--km-primary); width: 16px; height: 16px; }

/* Cards & surfaces ------------------------------------------ */
.km-card {
    background: var(--km-surface);
    border: 1px solid var(--km-border);
    border-radius: var(--km-r-4);
    box-shadow: var(--km-sh-1);
}
.km-divider { height: 1px; background: var(--km-border); border: 0; margin: 0; }

/* Alerts ---------------------------------------------------- */
.km-alert {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    padding: 12px 14px;
    border-radius: var(--km-r-3);
    border: 1px solid transparent;
    font-size: 14px;
}
.km-alert .bi { font-size: 18px; margin-top: 1px; }
.km-alert.success { background: #e7f6ec; border-color: #c1e5cd; color: #1f5e3f; }
.km-alert.warning { background: var(--km-warning-bg); border-color: #f1d98a; color: #74500a; }
.km-alert.danger  { background: var(--km-danger-bg); border-color: #f4b6b6; color: #872929; }
.km-alert.info    { background: var(--km-info-bg); border-color: #b8d8ee; color: #1f4d75; }
.km-alert b { font-weight: 700; }

/* Stars ----------------------------------------------------- */
.km-stars {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: #ffba3a;
    font-size: 14px;
    line-height: 1;
}
.km-stars .count { color: var(--km-muted); margin-left: 6px; font-size: 13px; font-weight: 500; }
.km-stars .km-star { color: #e6e1d6; position: relative; display: inline-block; }
.km-stars .km-star.on { color: #ffba3a; }
.km-stars .km-star.half {
    background: linear-gradient(90deg, #ffba3a 50%, #e6e1d6 50%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* Placeholder media (used in lieu of imagery) --------------- */
.km-img {
    position: relative;
    background:
        repeating-linear-gradient(45deg,
            var(--km-cream-2) 0 12px,
            var(--km-ink-100) 12px 24px);
    border-radius: var(--km-r-3);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
    font-size: 11px;
    color: var(--km-ink-500);
    letter-spacing: .04em;
    text-align: center;
}
.km-img.solid   { background: linear-gradient(135deg, var(--km-coral-100), var(--km-sun-300)); }
.km-img.solid-2 { background: linear-gradient(135deg, var(--km-sage-100), var(--km-sky-300)); }
.km-img.solid-3 { background: linear-gradient(135deg, #f6dffb, var(--km-coral-100)); }
.km-img.solid-4 { background: linear-gradient(135deg, var(--km-sun-300), var(--km-coral-200)); }
.km-img.solid-5 { background: linear-gradient(135deg, var(--km-sky-300), #d9d3ff); }
.km-img.solid-6 { background: linear-gradient(135deg, var(--km-sage-200), var(--km-sun-300)); }

/* ProductCard ----------------------------------------------- */
.km-product {
    display: flex;
    flex-direction: column;
    background: var(--km-surface);
    border: 1px solid var(--km-border);
    border-radius: var(--km-r-4);
    overflow: hidden;
    transition: transform .15s, box-shadow .15s, border-color .15s;
    position: relative;
}
.km-product:hover {
    transform: translateY(-2px);
    box-shadow: var(--km-sh-2);
    border-color: var(--km-coral-200);
}
.km-product .media {
    aspect-ratio: 4/3;
    width: 100%;
}
.km-product .body {
    padding: 14px 14px 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
}
.km-product .title {
    font-family: var(--km-font-display);
    font-weight: 700;
    font-size: 15px;
    color: var(--km-text);
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-decoration: none;
}
.km-product .title:hover { text-decoration: underline; }
.km-product .meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}
.km-product .price {
    font-family: var(--km-font-display);
    font-weight: 800;
    font-size: 18px;
    color: var(--km-text);
}
.km-product .badges { display: flex; gap: 6px; flex-wrap: wrap; }
.km-product .top-badges {
    position: absolute;
    top: 10px; left: 10px;
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    z-index: 2;
}
.km-product .top-right {
    position: absolute;
    top: 10px; right: 10px;
    display: flex;
    gap: 6px;
    z-index: 2;
}
.km-product .heart {
    width: 32px; height: 32px;
    border-radius: 999px;
    background: rgba(255,255,255,.92);
    border: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--km-ink-700);
    box-shadow: var(--km-sh-1);
}
.km-product .heart:hover { color: var(--km-coral-500); }
.km-product .heart.on { color: var(--km-coral-500); }
.km-product.out .media::after {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(251,246,238,.55);
}
.km-product .media-wrap { position: relative; }
.km-product .stock-low { color: var(--km-warning); font-size: 12px; font-weight: 600; }

/* Tiles (KPI) ----------------------------------------------- */
.km-tile {
    background: var(--km-surface);
    border: 1px solid var(--km-border);
    border-radius: var(--km-r-4);
    padding: 18px 20px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.km-tile .label {
    font-family: var(--km-font-body);
    font-weight: 700;
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--km-muted);
}
.km-tile .value {
    font-family: var(--km-font-display);
    font-weight: 800;
    font-size: 32px;
    letter-spacing: -0.02em;
    color: var(--km-text);
    line-height: 1.1;
}
.km-tile .sub {
    font-size: 13px;
    color: var(--km-muted);
    display: inline-flex;
    gap: 4px;
    align-items: center;
}
.km-tile .sub.up { color: var(--km-success); }
.km-tile .sub.down { color: var(--km-danger); }

/* Tables ---------------------------------------------------- */
.km-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 14px;
    background: var(--km-surface);
    border-radius: var(--km-r-4);
    overflow: hidden;
    border: 1px solid var(--km-border);
}
.km-table th {
    font-family: var(--km-font-display);
    font-weight: 700;
    font-size: 12px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--km-muted);
    text-align: left;
    padding: 10px 14px;
    border-bottom: 1px solid var(--km-border);
    background: var(--km-ink-50);
}
.km-table td {
    padding: 14px;
    border-bottom: 1px solid var(--km-border);
    color: var(--km-text);
    vertical-align: middle;
}
.km-table tr:last-child td { border-bottom: 0; }
.km-table tr:hover td { background: var(--km-ink-50); }

/* Top bar --------------------------------------------------- */
.km-topbar {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 14px 24px;
    background: var(--km-surface);
    border-bottom: 1px solid var(--km-border);
}
.km-brand {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--km-font-display);
    font-weight: 900;
    font-size: 20px;
    color: var(--km-text) !important;
    letter-spacing: -0.02em;
    text-decoration: none;
}
.km-brand:hover { text-decoration: none; }
.km-brand-mark {
    width: 28px; height: 28px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--km-coral-400), var(--km-coral-600));
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 900;
    font-size: 16px;
}
.km-nav {
    display: flex;
    gap: 4px;
    align-items: center;
}
.km-nav a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    border-radius: var(--km-r-2);
    color: var(--km-ink-700);
    font-weight: 600;
    font-size: 14px;
    text-decoration: none;
}
.km-nav a:hover { background: var(--km-ink-100); color: var(--km-text); text-decoration: none; }
.km-nav a.active { background: var(--km-coral-50); color: var(--km-coral-700); }

.km-iconbtn {
    width: 40px; height: 40px;
    border-radius: 999px;
    border: 1px solid var(--km-border);
    background: var(--km-surface);
    color: var(--km-ink-700);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    position: relative;
    font-size: 16px;
    text-decoration: none;
}
.km-iconbtn:hover { background: var(--km-ink-100); color: var(--km-text); }
.km-iconbtn .dot {
    position: absolute;
    top: 6px; right: 6px;
    min-width: 16px;
    height: 16px;
    padding: 0 4px;
    border-radius: 999px;
    background: var(--km-coral-500);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--km-surface);
}

/* Sidebar (admin/seller) ------------------------------------ */
.km-sidebar {
    background: var(--km-surface);
    border-right: 1px solid var(--km-border);
    padding: 20px 14px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.km-sidebar .group {
    font-family: var(--km-font-display);
    font-weight: 700;
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--km-muted);
    padding: 14px 12px 4px;
}
.km-sidebar a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: var(--km-r-2);
    color: var(--km-ink-700);
    font-weight: 600;
    font-size: 14px;
    text-decoration: none;
}
.km-sidebar a:hover { background: var(--km-ink-100); color: var(--km-text); text-decoration: none; }
.km-sidebar a.active { background: var(--km-coral-50); color: var(--km-coral-700); }
.km-sidebar a .bi { font-size: 18px; width: 20px; text-align: center; }

/* Layout utils ---------------------------------------------- */
.km-container { max-width: 1240px; margin: 0 auto; padding: 0 24px; }

.km-safety-bar {
    background: var(--km-sage-50);
    border-bottom: 1px solid var(--km-sage-100);
    color: var(--km-sage-700);
    font-size: 13px;
    padding: 8px 24px;
    display: flex;
    gap: 18px;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}
.km-safety-bar .bi { font-size: 14px; }

/* Hero pattern */
.km-pattern-dots {
    background-image: radial-gradient(rgba(35,33,29,.07) 1.2px, transparent 1.2px);
    background-size: 18px 18px;
}

/* Quantity stepper ------------------------------------------ */
.km-stepper {
    display: inline-flex;
    align-items: center;
    border: 1.5px solid var(--km-border);
    border-radius: var(--km-r-3);
    overflow: hidden;
    background: var(--km-surface);
}
.km-stepper button {
    width: 36px; height: 36px;
    border: 0;
    background: transparent;
    cursor: pointer;
    font-size: 16px;
    color: var(--km-ink-700);
}
.km-stepper button:hover { background: var(--km-ink-100); }
.km-stepper button:disabled { color: var(--km-ink-400); cursor: not-allowed; }
.km-stepper .val {
    width: 40px;
    text-align: center;
    font-weight: 700;
    font-family: var(--km-font-display);
}

/* Toggle ---------------------------------------------------- */
.km-toggle {
    position: relative;
    display: inline-flex;
    align-items: center;
    width: 40px; height: 22px;
    background: var(--km-ink-200);
    border-radius: 999px;
    cursor: pointer;
    transition: background .15s;
    flex: 0 0 auto;
    border: 0;
}
.km-toggle::after {
    content: "";
    position: absolute;
    top: 2px; left: 2px;
    width: 18px; height: 18px;
    background: #fff;
    border-radius: 999px;
    box-shadow: 0 1px 3px rgba(0,0,0,.2);
    transition: transform .15s;
}
.km-toggle.on { background: var(--km-sage-500); }
.km-toggle.on::after { transform: translateX(18px); }

/* Stripe payment shell -------------------------------------- */
.km-stripe {
    border: 1.5px solid var(--km-border);
    border-radius: var(--km-r-3);
    background: var(--km-surface);
    padding: 14px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
    font-family: var(--km-font-body);
    min-height: 200px;
}

/* Order status timeline ------------------------------------- */
.km-timeline {
    display: flex;
    flex-direction: column;
    gap: 0;
    padding-left: 8px;
}
.km-timeline .step {
    display: grid;
    grid-template-columns: 22px 1fr;
    gap: 12px;
    position: relative;
    padding-bottom: 16px;
}
.km-timeline .step .dot {
    width: 14px; height: 14px;
    border-radius: 999px;
    border: 3px solid var(--km-ink-200);
    background: var(--km-surface);
    margin-top: 3px;
    z-index: 1;
}
.km-timeline .step.done .dot { border-color: var(--km-sage-500); background: var(--km-sage-500); }
.km-timeline .step.current .dot { border-color: var(--km-coral-500); background: var(--km-coral-500); }
.km-timeline .step:not(:last-child)::before {
    content: "";
    position: absolute;
    left: 6px; top: 16px; bottom: -6px;
    width: 2px;
    background: var(--km-ink-200);
}
.km-timeline .step.done:not(:last-child)::before { background: var(--km-sage-300); }
.km-timeline .label {
    font-weight: 700;
    font-family: var(--km-font-display);
    font-size: 14px;
}
.km-timeline .meta { color: var(--km-muted); font-size: 12px; }

/* Empty state ----------------------------------------------- */
.km-empty {
    text-align: center;
    padding: 56px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
}
.km-empty .glyph {
    width: 96px; height: 96px;
    border-radius: 999px;
    background: var(--km-coral-50);
    color: var(--km-coral-500);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 42px;
}
.km-empty h3 { font-size: 22px; }
.km-empty p { color: var(--km-muted); max-width: 360px; }

/* Page shell (used by all pages) ---------------------------- */
.km-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--km-bg);
}
.km-page > main {
    flex: 1;
}

/* Checkout wizard steps ------------------------------------- */
.km-wizard {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 24px 0;
}
.km-wizard .step {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--km-muted);
    font-family: var(--km-font-display);
    font-weight: 700;
    font-size: 14px;
}
.km-wizard .step .num {
    width: 28px; height: 28px;
    border-radius: 999px;
    background: var(--km-ink-100);
    color: var(--km-muted);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
}
.km-wizard .step.done .num { background: var(--km-sage-500); color: #fff; }
.km-wizard .step.done { color: var(--km-sage-700); }
.km-wizard .step.current .num { background: var(--km-coral-500); color: #fff; }
.km-wizard .step.current { color: var(--km-text); }
.km-wizard .bar {
    flex: 1;
    height: 2px;
    background: var(--km-ink-200);
    border-radius: 2px;
}
.km-wizard .bar.done { background: var(--km-sage-300); }

/* Visually hide */
.km-sr {
    position: absolute;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
}

/* Responsive breakpoints ------------------------------------ */
@media (max-width: 991px) {
    .km-container { padding: 0 16px; }
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
}
@media (max-width: 575px) {
    .km-topbar { gap: 8px; padding: 12px 16px; flex-wrap: wrap; }
    .km-safety-bar { font-size: 12px; padding: 6px 12px; gap: 12px; }
}