:root {
    --bg: #06101c;
    --bg-soft: #0b1830;
    --bg-elevated: rgba(8, 18, 34, 0.78);
    --panel: rgba(10, 21, 39, 0.62);
    --panel-strong: rgba(9, 19, 36, 0.88);
    --line: rgba(255, 255, 255, 0.08);
    --line-strong: rgba(255, 255, 255, 0.14);
    --text: #f5fbff;
    --muted: #9bb0cf;
    --accent: #69d5ff;
    --accent-2: #82ffc6;
    --accent-3: #7f9bff;
    --warning: #ffd66b;
    --danger: #ff7c97;
    --success: #7dffd8;
    --shadow-soft: 18px 18px 42px rgba(0, 0, 0, 0.42), -10px -10px 24px rgba(255, 255, 255, 0.02);
    --shadow-panel: 0 28px 60px rgba(0, 0, 0, 0.4);
    --radius-xl: 32px;
    --radius-lg: 24px;
    --radius-md: 18px;
    --radius-sm: 14px;
    --container: min(1180px, calc(100% - 28px));
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    color: var(--text);
    font-family: "Trebuchet MS", "Segoe UI", sans-serif;
    background:
        radial-gradient(circle at 14% 18%, rgba(105, 213, 255, 0.14), transparent 24%),
        radial-gradient(circle at 88% 14%, rgba(130, 255, 198, 0.1), transparent 20%),
        radial-gradient(circle at 72% 72%, rgba(127, 155, 255, 0.08), transparent 22%),
        linear-gradient(180deg, #081321 0%, #040913 56%, #02050a 100%);
    overflow-x: hidden;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 38px 38px;
    opacity: 0.3;
    mask-image: radial-gradient(circle at center, black 24%, transparent 92%);
    pointer-events: none;
    z-index: 0;
}

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

img {
    display: block;
    max-width: 100%;
}

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

button {
    cursor: pointer;
}

input,
select,
textarea {
    width: 100%;
    padding: 0.95rem 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text);
    background: rgba(4, 11, 20, 0.48);
    box-shadow: inset 6px 6px 16px rgba(0, 0, 0, 0.28), inset -6px -6px 16px rgba(255, 255, 255, 0.02);
    outline: none;
}

input:focus,
select:focus,
textarea:focus {
    border-color: rgba(105, 213, 255, 0.52);
    box-shadow: 0 0 0 4px rgba(105, 213, 255, 0.08), inset 6px 6px 16px rgba(0, 0, 0, 0.28);
}

label {
    display: grid;
    gap: 0.65rem;
    color: var(--muted);
    font-size: 0.95rem;
}

.filter-form label,
.checkout-form label,
.profile-form label,
.admin-form label,
.review-form label,
.coupon-form label {
    padding-inline: 0.2rem;
}

#particle-canvas {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.ambient-background {
    position: fixed;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
}

.ambient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(8px);
    opacity: 0.55;
}

.orb-one {
    width: 340px;
    height: 340px;
    top: 6%;
    left: -6%;
    background: radial-gradient(circle, rgba(105, 213, 255, 0.28), transparent 72%);
}

.orb-two {
    width: 300px;
    height: 300px;
    top: 54%;
    right: -4%;
    background: radial-gradient(circle, rgba(130, 255, 198, 0.22), transparent 74%);
}

.orb-three {
    width: 240px;
    height: 240px;
    bottom: -4%;
    left: 36%;
    background: radial-gradient(circle, rgba(127, 155, 255, 0.2), transparent 74%);
}

.ambient-grid {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at center, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
    background-size: 18px 18px;
    opacity: 0.06;
}

.app-shell,
.admin-shell {
    position: relative;
    z-index: 1;
}

.site-header,
.site-footer,
.page-content {
    width: var(--container);
    margin-inline: auto;
}

.page-content {
    padding: 1.4rem 0 4rem;
}

.glass-panel {
    position: relative;
    backdrop-filter: blur(22px);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.04)),
        rgba(9, 19, 35, 0.58);
    border: 1px solid var(--line);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-soft);
}

.glass-panel::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    border: 1px solid rgba(255, 255, 255, 0.04);
    pointer-events: none;
}

.site-header {
    margin-top: 1rem;
    padding: 1rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    position: sticky;
    top: 1rem;
    z-index: 20;
}

.brand-lockup,
.admin-brand {
    display: flex;
    align-items: center;
    gap: 0.9rem;
}

.brand-mark {
    width: 54px;
    height: 54px;
    display: grid;
    place-items: center;
    border-radius: 18px;
    background: linear-gradient(135deg, rgba(105, 213, 255, 0.96), rgba(130, 255, 198, 0.72));
    color: #031019;
    font-weight: 900;
    font-size: 1.35rem;
    box-shadow: 0 14px 32px rgba(105, 213, 255, 0.22);
}

.brand-name {
    display: block;
    font-size: 1.08rem;
    font-weight: 800;
    letter-spacing: 0.04em;
}

.brand-lockup p,
.admin-brand small {
    margin: 0.18rem 0 0;
    color: var(--muted);
    font-size: 0.84rem;
}

.site-nav,
.admin-nav {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    flex-wrap: wrap;
}

.site-nav a,
.admin-nav a {
    padding: 0.75rem 1rem;
    border-radius: 999px;
    color: var(--muted);
    background: transparent;
    transition: transform 0.28s ease, background 0.28s ease, color 0.28s ease, box-shadow 0.28s ease;
}

.site-nav a:hover,
.site-nav a.active,
.admin-nav a:hover,
.admin-nav a.active {
    color: var(--text);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.16);
}

.nav-count {
    display: inline-grid;
    place-items: center;
    min-width: 24px;
    height: 24px;
    margin-left: 0.35rem;
    padding-inline: 0.35rem;
    border-radius: 999px;
    background: rgba(105, 213, 255, 0.16);
    color: var(--accent);
    font-size: 0.78rem;
    font-weight: 700;
}

.menu-toggle {
    display: none;
    padding: 0.3rem;
    border: 0;
    background: transparent;
}

.menu-toggle span {
    display: block;
    width: 26px;
    height: 2px;
    margin: 5px 0;
    background: var(--text);
}

.flash-banner {
    width: var(--container);
    margin: 1rem auto 0;
    padding: 1rem 1.2rem;
    border-radius: 18px;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-panel);
}

.flash-banner.success {
    background: rgba(125, 255, 216, 0.12);
}

.flash-banner.error {
    background: rgba(255, 124, 151, 0.12);
}

.primary-btn,
.ghost-btn,
.danger-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.95rem 1.35rem;
    border-radius: 999px;
    border: 1px solid transparent;
    font-weight: 700;
    transition: transform 0.28s ease, box-shadow 0.28s ease, background 0.28s ease, border-color 0.28s ease;
}

.primary-btn {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #04101c;
    box-shadow: 0 18px 36px rgba(105, 213, 255, 0.22);
}

.ghost-btn {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.11);
    color: var(--text);
}

.danger-btn {
    background: rgba(255, 124, 151, 0.12);
    border-color: rgba(255, 124, 151, 0.18);
    color: #ffe6ec;
}

.full-width {
    width: 100%;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent);
    margin-bottom: 0.95rem;
    font-size: 0.8rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.section-block {
    margin-top: 1.6rem;
}

.section-heading {
    display: flex;
    justify-content: space-between;
    align-items: end;
    gap: 1rem;
    margin-bottom: 1.1rem;
}

.section-heading.compact {
    margin-bottom: 1.25rem;
}

.section-heading h1,
.section-heading h2,
.auth-card h1,
.product-info h1 {
    margin: 0;
    line-height: 1.08;
}

.section-subtext,
.product-content p,
.review-card p,
.empty-state p,
.site-footer p {
    color: var(--muted);
    line-height: 1.7;
}

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

.toast-container {
    position: fixed;
    top: 1.25rem;
    right: 1.25rem;
    z-index: 40;
    display: grid;
    gap: 0.75rem;
}

.toast {
    min-width: 270px;
    max-width: 360px;
    padding: 1rem 1.1rem;
    border-radius: 18px;
    background: rgba(6, 12, 21, 0.94);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow-panel);
}

.toast.success {
    border-color: rgba(125, 255, 216, 0.22);
}

.toast.error {
    border-color: rgba(255, 124, 151, 0.22);
}

.status-chip {
    display: inline-flex;
    align-items: center;
    padding: 0.45rem 0.78rem;
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 700;
}

.status-pending {
    background: rgba(255, 214, 107, 0.14);
    color: #ffe59a;
}

.status-processing,
.status-shipped {
    background: rgba(105, 213, 255, 0.14);
    color: #a7ebff;
}

.status-delivered {
    background: rgba(125, 255, 216, 0.14);
    color: #c9fff0;
}

.status-cancelled {
    background: rgba(255, 124, 151, 0.14);
    color: #ffe0e8;
}

.site-footer {
    margin-bottom: 1.6rem;
    padding: 1.4rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.site-footer h3 {
    margin: 0 0 0.35rem;
}

.footer-grid {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    color: var(--muted);
}

@media (max-width: 760px) {
    .site-header {
        align-items: flex-start;
    }

    .menu-toggle {
        display: inline-block;
    }

    .site-nav {
        display: none;
        width: 100%;
        padding-top: 1rem;
        flex-direction: column;
        align-items: stretch;
    }

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

    .site-nav a,
    .admin-nav a,
    .primary-btn,
    .ghost-btn,
    .danger-btn {
        width: 100%;
    }

    .site-header .brand-lockup {
        max-width: calc(100% - 58px);
    }

    .split-grid,
    .section-heading,
    .site-footer {
        grid-template-columns: 1fr;
        flex-direction: column;
        align-items: stretch;
    }
}