:root {
    --bg: #15030b;
    --bg-soft: #260814;
    --card: rgba(255, 255, 255, 0.08);
    --card-strong: rgba(255, 255, 255, 0.14);
    --gold: #ffc857;
    --orange: #ff7a1a;
    --pink: #ff3d81;
    --green: #40d68a;
    --text: #fff8ee;
    --muted: #d9bfc7;
    --danger: #ff4d5f;
    --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: "Inter", Arial, sans-serif;
    background:
        radial-gradient(circle at top left, rgba(255, 200, 87, 0.22), transparent 30rem),
        radial-gradient(circle at top right, rgba(255, 61, 129, 0.18), transparent 24rem),
        linear-gradient(135deg, var(--bg), #050006 70%);
    color: var(--text);
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image:
        radial-gradient(circle, rgba(255,255,255,.55) 1px, transparent 1px),
        radial-gradient(circle, rgba(255,200,87,.45) 1px, transparent 1px);
    background-size: 90px 90px, 130px 130px;
    background-position: 0 0, 30px 40px;
    opacity: .23;
}

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

a {
    color: inherit;
    text-decoration: none;
}

.site-header,
main,
.footer {
    position: relative;
    z-index: 1;
}

.navbar {
    align-items: center;
    display: flex;
    justify-content: space-between;
    margin: 0 auto;
    max-width: 1180px;
    padding: 22px;
}

.brand {
    align-items: center;
    display: flex;
    gap: 12px;
}

.brand-mark {
    align-items: center;
    background: linear-gradient(135deg, var(--gold), var(--pink));
    border-radius: 18px;
    box-shadow: 0 10px 40px rgba(255, 122, 26, .35);
    color: #30030c;
    display: inline-flex;
    font-weight: 900;
    height: 56px;
    justify-content: center;
    letter-spacing: -1px;
    width: 56px;
}

.brand small {
    color: var(--muted);
    display: block;
    font-size: .78rem;
    margin-top: 2px;
}

.nav-links {
    align-items: center;
    display: flex;
    gap: 18px;
}

.nav-links a {
    color: var(--muted);
    font-weight: 700;
}

.nav-links a:hover,
.nav-links .nav-cta {
    color: var(--text);
}

.nav-cta {
    background: rgba(255,255,255,.12);
    border: 1px solid rgba(255,255,255,.16);
    border-radius: 999px;
    padding: 10px 16px;
}

.nav-toggle {
    background: var(--card);
    border: 1px solid rgba(255,255,255,.16);
    border-radius: 12px;
    color: var(--text);
    display: none;
    padding: 8px 12px;
}

.hero {
    align-items: center;
    display: grid;
    gap: 32px;
    grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr);
    margin: 0 auto;
    max-width: 1180px;
    min-height: 560px;
    padding: 44px 22px 76px;
}

.eyebrow {
    color: var(--gold);
    font-size: .76rem;
    font-weight: 900;
    letter-spacing: .16em;
    margin: 0 0 10px;
    text-transform: uppercase;
}

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

h1 {
    font-size: clamp(2.8rem, 8vw, 6.8rem);
    letter-spacing: -.07em;
    line-height: .88;
    margin-bottom: 24px;
    max-width: 850px;
}

h2 {
    font-size: clamp(1.7rem, 3vw, 2.5rem);
    letter-spacing: -.04em;
    margin-bottom: 18px;
}

.hero-text {
    color: var(--muted);
    font-size: 1.16rem;
    line-height: 1.7;
    max-width: 700px;
}

.hero-actions,
.invoice-actions,
.section-heading,
.form-row {
    align-items: center;
    display: flex;
    gap: 14px;
}

.btn {
    border: 0;
    border-radius: 999px;
    cursor: pointer;
    display: inline-flex;
    font-weight: 900;
    justify-content: center;
    padding: 13px 20px;
    transition: transform .2s ease, box-shadow .2s ease;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn.primary {
    background: linear-gradient(135deg, var(--gold), var(--orange));
    box-shadow: 0 16px 40px rgba(255, 122, 26, .24);
    color: #351002;
}

.btn.ghost {
    background: rgba(255,255,255,.1);
    border: 1px solid rgba(255,255,255,.16);
    color: var(--text);
}

.btn.danger {
    background: rgba(255, 77, 95, .16);
    color: #ffdfe3;
}

.btn.small {
    padding: 9px 13px;
}

.btn.full {
    width: 100%;
}

.hero-card,
.panel,
.stats article,
.concept article,
.product-card {
    background: linear-gradient(145deg, rgba(255,255,255,.12), rgba(255,255,255,.055));
    border: 1px solid rgba(255,255,255,.13);
    border-radius: 28px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(18px);
}

.hero-card {
    min-height: 380px;
    overflow: hidden;
    padding: 34px;
    position: relative;
}

.hero-card::after {
    background: radial-gradient(circle, rgba(255,200,87,.8), transparent 58%);
    content: "";
    filter: blur(18px);
    height: 230px;
    position: absolute;
    right: -60px;
    top: -40px;
    width: 230px;
}

.spark {
    display: block;
    font-size: 5rem;
    margin-bottom: 80px;
}

.hero-card strong {
    color: var(--gold);
    display: block;
    font-size: 2rem;
    margin-top: 24px;
}

.stats,
.section,
.footer {
    margin: 0 auto;
    max-width: 1180px;
    padding: 24px 22px;
}

.stats {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(4, 1fr);
    margin-top: -54px;
}

.stats article {
    padding: 22px;
}

.stats strong {
    display: block;
    font-size: 1.45rem;
}

.stats span,
.form-note,
.product-description,
.cart-meta,
.concept li,
.footer span {
    color: var(--muted);
}

.section {
    padding-top: 82px;
}

.section-heading {
    justify-content: space-between;
    margin-bottom: 24px;
}

.section-heading.compact {
    margin-bottom: 14px;
}

.filters {
    align-items: center;
    display: grid;
    gap: 8px;
    grid-template-columns: auto minmax(160px, 1fr) auto minmax(180px, 1fr);
}

label {
    color: #ffe2b1;
    display: block;
    font-size: .86rem;
    font-weight: 800;
    margin-bottom: 8px;
}

input,
select,
textarea {
    background: rgba(0,0,0,.24);
    border: 1px solid rgba(255,255,255,.15);
    border-radius: 14px;
    color: var(--text);
    outline: none;
    padding: 12px 13px;
    width: 100%;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--gold);
    box-shadow: 0 0 0 4px rgba(255,200,87,.12);
}

select option {
    background: #2a0712;
}

.product-grid {
    display: grid;
    gap: 20px;
    grid-template-columns: repeat(3, 1fr);
}

.product-card {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.product-image {
    align-items: center;
    background: linear-gradient(135deg, rgba(255,200,87,.24), rgba(255,61,129,.2));
    display: flex;
    font-size: 4rem;
    height: 190px;
    justify-content: center;
    overflow: hidden;
}

.product-image img {
    height: 100%;
    object-fit: cover;
    width: 100%;
}

.product-body {
    display: flex;
    flex: 1;
    flex-direction: column;
    padding: 20px;
}

.product-top {
    align-items: start;
    display: flex;
    gap: 12px;
    justify-content: space-between;
}

.badge {
    background: rgba(255,200,87,.16);
    border: 1px solid rgba(255,200,87,.24);
    border-radius: 999px;
    color: #ffe5ab;
    display: inline-flex;
    font-size: .76rem;
    font-weight: 900;
    padding: 7px 10px;
}

.price {
    color: var(--green);
    font-size: 1.4rem;
    font-weight: 900;
    white-space: nowrap;
}

.product-description {
    line-height: 1.55;
}

.product-actions {
    align-items: center;
    display: flex;
    gap: 10px;
    justify-content: space-between;
    margin-top: auto;
}

.stock {
    color: var(--muted);
    font-size: .85rem;
}

.split,
.admin-grid,
.concept-grid {
    display: grid;
    gap: 22px;
    grid-template-columns: minmax(0, 1.25fr) minmax(320px, .75fr);
}

.panel {
    padding: 24px;
}

.cart-list {
    display: grid;
    gap: 12px;
}

.cart-item {
    align-items: center;
    background: rgba(0,0,0,.18);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: 18px;
    display: grid;
    gap: 14px;
    grid-template-columns: 1fr auto auto;
    padding: 14px;
}

.qty-controls {
    align-items: center;
    display: flex;
    gap: 8px;
}

.icon-btn {
    align-items: center;
    background: rgba(255,255,255,.12);
    border: 1px solid rgba(255,255,255,.12);
    border-radius: 10px;
    color: var(--text);
    cursor: pointer;
    display: inline-flex;
    font-weight: 900;
    height: 34px;
    justify-content: center;
    width: 34px;
}

.totals {
    background: rgba(0,0,0,.18);
    border-radius: 18px;
    margin-top: 18px;
    padding: 18px;
}

.total-row {
    display: flex;
    justify-content: space-between;
    margin: 8px 0;
}

.total-row.grand {
    border-top: 1px solid rgba(255,255,255,.13);
    color: var(--gold);
    font-size: 1.25rem;
    font-weight: 900;
    margin-top: 12px;
    padding-top: 12px;
}

.invoice-section[hidden] {
    display: none;
}

.invoice-actions {
    justify-content: space-between;
}

.invoice {
    background: #fffaf2;
    border-radius: 24px;
    color: #1f1420;
    margin-top: 18px;
    padding: 28px;
}

.invoice-header,
.invoice-meta {
    display: flex;
    justify-content: space-between;
    gap: 18px;
}

.invoice table {
    border-collapse: collapse;
    margin: 22px 0;
    width: 100%;
}

.invoice th,
.invoice td {
    border-bottom: 1px solid #eadfcd;
    padding: 12px;
    text-align: left;
}

.invoice th:last-child,
.invoice td:last-child {
    text-align: right;
}

.admin-grid {
    grid-template-columns: .7fr 1.3fr;
}

.form-row > div {
    flex: 1;
}

form .btn {
    margin-top: 16px;
}

.form-note {
    font-size: .9rem;
    line-height: 1.5;
    margin-bottom: 0;
}

.concept-grid {
    grid-template-columns: repeat(4, 1fr);
}

.concept article {
    padding: 22px;
}

.concept ul {
    margin: 0;
    padding-left: 20px;
}

.concept li {
    line-height: 1.6;
    margin-bottom: 9px;
}

code {
    background: rgba(0,0,0,.3);
    border-radius: 6px;
    color: #ffe1a3;
    padding: 2px 6px;
}

.footer {
    align-items: center;
    border-top: 1px solid rgba(255,255,255,.11);
    display: flex;
    gap: 12px;
    justify-content: space-between;
    margin-top: 70px;
    padding-bottom: 38px;
}

.empty-state {
    background: rgba(255,255,255,.08);
    border: 1px dashed rgba(255,255,255,.2);
    border-radius: 18px;
    color: var(--muted);
    padding: 24px;
    text-align: center;
}

@media (max-width: 920px) {
    .nav-toggle {
        display: inline-flex;
    }

    .nav-links {
        background: rgba(21, 3, 11, .96);
        border: 1px solid rgba(255,255,255,.12);
        border-radius: 20px;
        box-shadow: var(--shadow);
        display: none;
        flex-direction: column;
        padding: 18px;
        position: absolute;
        right: 22px;
        top: 86px;
        width: min(280px, calc(100% - 44px));
        z-index: 5;
    }

    .nav-links.open {
        display: flex;
    }

    .hero,
    .split,
    .admin-grid {
        grid-template-columns: 1fr;
    }

    .stats,
    .product-grid,
    .concept-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .hero-actions,
    .section-heading,
    .form-row,
    .footer,
    .invoice-header,
    .invoice-meta {
        align-items: stretch;
        flex-direction: column;
    }

    .filters {
        grid-template-columns: 1fr;
        width: 100%;
    }

    .stats,
    .product-grid,
    .concept-grid {
        grid-template-columns: 1fr;
    }

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

@media print {
    body * {
        visibility: hidden;
    }

    #invoiceSection,
    #invoiceSection * {
        visibility: visible;
    }

    #invoiceSection {
        left: 0;
        position: absolute;
        top: 0;
        width: 100%;
    }

    .invoice-actions {
        display: none;
    }
}