:root {
    --bg: #e8edf3;
    --bg-elevated: #f7f9fc;
    --ink: #142033;
    --muted: #5a6b80;
    --soft: #8796a8;
    --line: rgba(20, 32, 51, 0.1);
    --accent: #c45c26;
    --accent-deep: #9a4518;
    --accent-soft: rgba(196, 92, 38, 0.12);
    --steel: #2a4a6b;
    --steel-soft: rgba(42, 74, 107, 0.12);
    --ok: #2f6b4a;
    --ok-soft: rgba(47, 107, 74, 0.12);
    --danger: #b43b3b;
    --danger-soft: rgba(180, 59, 59, 0.1);
    --radius: 14px;
    --shadow: 0 12px 36px rgba(20, 32, 51, 0.08);
    --font-display: "Outfit", system-ui, sans-serif;
    --font-body: "IBM Plex Sans", system-ui, sans-serif;
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--font-body);
    color: var(--ink);
    background: var(--bg);
    line-height: 1.55;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.page-bg {
    position: fixed;
    inset: 0;
    z-index: -1;
    background:
        linear-gradient(135deg, rgba(42, 74, 107, 0.08) 0%, transparent 42%),
        linear-gradient(180deg, #dfe7f0 0%, #e8edf3 40%, #eef2f7 100%),
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 47px,
            rgba(20, 32, 51, 0.025) 47px,
            rgba(20, 32, 51, 0.025) 48px
        ),
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 47px,
            rgba(20, 32, 51, 0.025) 47px,
            rgba(20, 32, 51, 0.025) 48px
        );
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 40;
    backdrop-filter: blur(12px);
    background: rgba(247, 249, 252, 0.88);
    border-bottom: 1px solid var(--line);
}

.topbar-inner {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0.85rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.topbar-brand {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    font-family: var(--font-display);
    font-weight: 700;
}

.brand-mark {
    width: 2.2rem;
    height: 2.2rem;
    display: grid;
    place-items: center;
    border-radius: 8px;
    background: var(--ink);
    color: #f3f6fa;
    font-size: 0.78rem;
    letter-spacing: 0.04em;
}

.brand-text {
    font-size: 1.05rem;
    letter-spacing: -0.02em;
}

.topbar-nav {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.topbar-nav a {
    padding: 0.45rem 0.75rem;
    border-radius: 999px;
    color: var(--muted);
    font-weight: 500;
    font-size: 0.92rem;
}

.topbar-nav a:hover,
.topbar-nav a.is-active { color: var(--ink); background: rgba(20, 32, 51, 0.05); }

.cart-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--accent-soft) !important;
    color: var(--accent-deep) !important;
}

.cart-pill strong {
    min-width: 1.35rem;
    height: 1.35rem;
    display: grid;
    place-items: center;
    border-radius: 999px;
    background: var(--accent);
    color: #fff;
    font-size: 0.75rem;
}

.stand-banner {
    background: linear-gradient(90deg, #1a2a40, #2a4a6b);
    color: #f2f6fb;
}

.stand-banner-inner {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0.75rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.9rem;
}

.stand-type {
    font-size: 0.7rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    font-weight: 700;
    padding: 0.35rem 0.55rem;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 6px;
}

.stand-banner strong { display: block; font-family: var(--font-display); }
.stand-banner span { opacity: 0.8; font-size: 0.9rem; }

.hero {
    max-width: 1120px;
    margin: 0 auto;
    padding: clamp(2rem, 5vw, 3.5rem) 1.25rem 1.5rem;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 2rem;
    align-items: end;
    animation: rise 0.7s ease both;
}

.eyebrow {
    margin: 0 0 0.6rem;
    font-size: 0.72rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--accent);
    font-weight: 700;
}

.hero-brand {
    margin: 0;
    font-family: var(--font-display);
    font-size: clamp(2.6rem, 8vw, 4.4rem);
    font-weight: 800;
    line-height: 0.95;
    letter-spacing: -0.04em;
}

.hero-lead {
    margin: 1rem 0 0;
    max-width: 34rem;
    color: var(--muted);
    font-size: 1.05rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem;
    margin-top: 1.4rem;
}

.hero-visual { display: flex; justify-content: flex-end; }

.hero-panel {
    width: min(100%, 280px);
    aspect-ratio: 1;
    border-radius: 18px;
    padding: 1.4rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    color: #f4f7fb;
    background:
        linear-gradient(160deg, rgba(255, 255, 255, 0.12), transparent 40%),
        linear-gradient(145deg, #1b2d45 0%, #2f5578 55%, #c45c26 140%);
    box-shadow: var(--shadow);
    animation: float-in 0.9s ease both 0.15s;
}

.hero-panel span {
    font-size: 0.75rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    opacity: 0.75;
}

.hero-panel strong {
    font-family: var(--font-display);
    font-size: 2.4rem;
    line-height: 1;
    letter-spacing: -0.03em;
}

.hero-panel em {
    font-style: normal;
    opacity: 0.8;
    font-size: 0.92rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    border: 1px solid transparent;
    border-radius: 10px;
    padding: 0.7rem 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.btn:hover { transform: translateY(-1px); }
.btn-sm { padding: 0.45rem 0.75rem; font-size: 0.9rem; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-deep); }
.btn-ghost {
    background: rgba(255, 255, 255, 0.55);
    border-color: var(--line);
    color: var(--ink);
}

.flash-wrap { max-width: 1120px; margin: 0 auto; padding: 0 1.25rem; }
.flash {
    margin: 0.75rem 0;
    padding: 0.85rem 1rem;
    border-radius: 10px;
    font-weight: 500;
}
.flash-ok { background: var(--ok-soft); color: var(--ok); }
.flash-err { background: var(--danger-soft); color: var(--danger); }

.tools {
    max-width: 1120px;
    margin: 0.5rem auto 0;
    padding: 0 1.25rem;
}

.search-box {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    background: rgba(255, 255, 255, 0.75);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 0.75rem 1rem;
    box-shadow: 0 4px 16px rgba(20, 32, 51, 0.04);
}

.search-box svg { width: 1.15rem; height: 1.15rem; color: var(--soft); flex: 0 0 auto; }
.search-box input {
    border: 0;
    outline: 0;
    width: 100%;
    background: transparent;
}

.cat-nav {
    max-width: 1120px;
    margin: 1rem auto 0;
    padding: 0 1.25rem;
    position: sticky;
    top: 64px;
    z-index: 30;
}

.cat-nav-track {
    display: flex;
    gap: 0.45rem;
    overflow-x: auto;
    padding: 0.5rem 0;
    scrollbar-width: none;
}

.cat-nav-track::-webkit-scrollbar { display: none; }

.cat-chip {
    flex: 0 0 auto;
    padding: 0.5rem 0.9rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid var(--line);
    color: var(--muted);
    font-weight: 600;
    font-size: 0.88rem;
}

.cat-chip.is-active,
.cat-chip:hover {
    background: var(--ink);
    border-color: var(--ink);
    color: #fff;
}

.no-results, .empty-state {
    text-align: center;
    padding: 3rem 1.25rem;
    color: var(--muted);
}

.catalog, .page-main {
    max-width: 1120px;
    margin: 0 auto;
    padding: 1rem 1.25rem 3rem;
}

.cat-section { margin-top: 1.75rem; scroll-margin-top: 120px; }

.section-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.9rem;
}

.section-head h2 {
    margin: 0;
    font-family: var(--font-display);
    font-size: 1.55rem;
    letter-spacing: -0.02em;
}

.section-head span { color: var(--soft); font-size: 0.9rem; }

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

.product {
    display: grid;
    grid-template-columns: 110px 1fr;
    gap: 0.9rem;
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 0.85rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    animation: rise 0.55s ease both;
}

.product:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.product-media {
    border-radius: 10px;
    overflow: hidden;
    background: #d7e0eb;
    min-height: 110px;
}

.product-media img {
    width: 100%;
    height: 110px;
    object-fit: cover;
}

.product-media-empty {
    display: grid;
    place-items: center;
    background: linear-gradient(145deg, #d5dfeb, #eef2f7);
    color: var(--steel);
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
}

.product-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 0.35rem;
}

.sku, .stock {
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    padding: 0.2rem 0.45rem;
    border-radius: 6px;
}

.sku { background: var(--steel-soft); color: var(--steel); }
.stock { background: var(--ok-soft); color: var(--ok); }

.product-body h3 {
    margin: 0;
    font-size: 1.05rem;
    font-family: var(--font-display);
    letter-spacing: -0.02em;
}

.product-desc {
    margin: 0.35rem 0 0;
    color: var(--muted);
    font-size: 0.9rem;
}

.price-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    margin: 0.75rem 0;
}

.price-row small {
    display: block;
    color: var(--soft);
    font-size: 0.72rem;
}

.price-row strong {
    font-family: var(--font-display);
    font-size: 1rem;
}

.price-ask {
    margin: 0.75rem 0;
    color: var(--accent-deep);
    font-weight: 600;
    font-size: 0.92rem;
}

.add-form {
    display: grid;
    grid-template-columns: 70px 1fr auto;
    gap: 0.4rem;
}

.add-form input,
.add-form select {
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 0.45rem 0.5rem;
    background: #fff;
}

.page-head { margin-bottom: 1.25rem; }
.page-head h1 {
    margin: 0;
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 2.4rem);
    letter-spacing: -0.03em;
}
.page-head p { color: var(--muted); margin: 0.5rem 0 0; max-width: 40rem; }

.cart-list, .form-panel, .success-panel, .table-wrap, .totals-box {
    background: rgba(255, 255, 255, 0.78);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 1rem;
    margin-bottom: 1rem;
}

.cart-row {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--line);
}

.cart-row:last-child { border-bottom: 0; }
.cart-row span { display: block; color: var(--soft); font-size: 0.85rem; margin-top: 0.2rem; }

.cart-controls {
    display: flex;
    align-items: center;
    gap: 0.55rem;
}

.cart-controls input {
    width: 72px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 0.4rem 0.5rem;
}

.cart-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.6rem;
    margin: 0.75rem 0 1.25rem;
}

.cart-total {
    margin-left: auto;
    font-family: var(--font-display);
    font-size: 1.15rem;
}

.form-panel h2, .success-panel h2 {
    margin: 0 0 0.75rem;
    font-family: var(--font-display);
}

.stack-form { display: grid; gap: 0.85rem; }
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.85rem;
}

label {
    display: grid;
    gap: 0.35rem;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--muted);
}

input[type="text"],
input[type="tel"],
input[type="email"],
input[type="number"],
input[type="password"],
input[type="date"],
textarea,
select {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 0.65rem 0.75rem;
    background: #fff;
    color: var(--ink);
}

textarea { resize: vertical; }
.form-actions { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.hint { color: var(--muted); font-size: 0.92rem; }
.muted { color: var(--soft); font-size: 0.85rem; }

.quote-lines { display: grid; gap: 0.6rem; }
.quote-line {
    display: grid;
    grid-template-columns: 1.6fr 90px 110px;
    gap: 0.5rem;
}

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

.data-table th,
.data-table td {
    text-align: left;
    padding: 0.7rem 0.5rem;
    border-bottom: 1px solid var(--line);
    vertical-align: top;
}

.data-table th {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--soft);
}

.totals-box { display: grid; gap: 0.45rem; max-width: 360px; margin-left: auto; }
.totals-box > div { display: flex; justify-content: space-between; gap: 1rem; }
.totals-box .grand {
    margin-top: 0.35rem;
    padding-top: 0.55rem;
    border-top: 1px solid var(--line);
    font-family: var(--font-display);
    font-size: 1.15rem;
}

.site-footer {
    border-top: 1px solid var(--line);
    background: rgba(247, 249, 252, 0.7);
    margin-top: 1rem;
}

.footer-inner {
    max-width: 1120px;
    margin: 0 auto;
    padding: 1.5rem 1.25rem 2rem;
    display: grid;
    gap: 0.75rem;
}

.footer-links { display: flex; flex-wrap: wrap; gap: 1rem; }
.footer-note { color: var(--soft); font-size: 0.88rem; margin: 0; }

/* Admin */
.admin-body { background: #e7ecf3; }
.admin-shell { max-width: 1180px; margin: 0 auto; padding: 1rem 1rem 2.5rem; }

.admin-top {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 1rem;
    align-items: center;
    margin-bottom: 1rem;
    padding: 1rem 1.1rem;
    background: #142033;
    color: #f3f6fa;
    border-radius: 16px;
}

.admin-brand { margin: 0; font-family: var(--font-display); font-size: 1.15rem; }
.admin-brand span { display: block; font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; opacity: 0.65; font-weight: 600; }

.admin-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
}

.admin-nav a {
    color: rgba(243, 246, 250, 0.75);
    padding: 0.4rem 0.7rem;
    border-radius: 8px;
    font-size: 0.88rem;
    font-weight: 500;
}

.admin-nav a:hover,
.admin-nav a.is-active {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.admin-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 1rem 1.1rem;
    margin-bottom: 1rem;
    box-shadow: 0 4px 18px rgba(20, 32, 51, 0.04);
}

.admin-card h2 {
    margin: 0 0 0.85rem;
    font-family: var(--font-display);
    font-size: 1.2rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.75rem;
}

.stat {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 1rem;
}

.stat span { display: block; color: var(--soft); font-size: 0.82rem; }
.stat strong {
    display: block;
    margin-top: 0.35rem;
    font-family: var(--font-display);
    font-size: 1.6rem;
    letter-spacing: -0.03em;
}

.toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.85rem;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.5rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 700;
    background: var(--steel-soft);
    color: var(--steel);
}

.badge-ok { background: var(--ok-soft); color: var(--ok); }
.badge-warn { background: var(--accent-soft); color: var(--accent-deep); }
.badge-danger { background: var(--danger-soft); color: var(--danger); }

.login-wrap {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 1.5rem;
}

.login-card {
    width: min(100%, 400px);
    background: #fff;
    border-radius: 16px;
    padding: 1.5rem;
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.login-card h1 {
    margin: 0 0 0.35rem;
    font-family: var(--font-display);
}

.qr-box {
    display: grid;
    gap: 0.5rem;
    padding: 0.85rem;
    background: #f3f6fa;
    border-radius: 10px;
    margin-top: 0.5rem;
}

.qr-box code {
    font-size: 0.82rem;
    word-break: break-all;
}

.inline-actions { display: flex; flex-wrap: wrap; gap: 0.35rem; }

@keyframes rise {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes float-in {
    from { opacity: 0; transform: translateY(18px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

@media (max-width: 900px) {
    .hero { grid-template-columns: 1fr; }
    .hero-visual { justify-content: flex-start; }
    .product-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .form-grid { grid-template-columns: 1fr; }
    .product { grid-template-columns: 90px 1fr; }
    .quote-line { grid-template-columns: 1fr; }
    .cart-row { flex-direction: column; }
    .cart-total { margin-left: 0; }
}

@media (max-width: 640px) {
    .topbar-nav a:not(.cart-pill) { display: none; }
    .price-row { grid-template-columns: 1fr; }
    .add-form { grid-template-columns: 1fr 1fr; }
    .add-form button { grid-column: 1 / -1; }
    .stats-grid { grid-template-columns: 1fr; }
}

@media print {
    .topbar, .page-bg, .form-actions, .btn { display: none !important; }
    body { background: #fff; }
    .table-wrap, .totals-box { box-shadow: none; border-color: #ddd; }
}