:root {
    color-scheme: dark;
    --bg: #081120;
    --bg-soft: #0f1c31;
    --panel: rgba(10, 23, 43, 0.88);
    --panel-border: rgba(152, 189, 255, 0.16);
    --text: #ecf4ff;
    --muted: #9bb0ce;
    --primary: #5aa9ff;
    --primary-strong: #2d7df4;
    --success: #1fd4a7;
    --error: #ff7b7b;
    --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
    font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background:
        radial-gradient(circle at top left, rgba(90, 169, 255, 0.2), transparent 32%),
        radial-gradient(circle at bottom right, rgba(31, 212, 167, 0.18), transparent 25%),
        var(--bg);
    color: var(--text);
    overflow-x: hidden;
    position: relative;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background:
        linear-gradient(120deg, rgba(6, 12, 22, 0.3), rgba(6, 12, 22, 0)),
        radial-gradient(circle at 20% 12%, rgba(115, 185, 255, 0.08), transparent 28%);
    pointer-events: none;
    z-index: -3;
}

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

code {
    padding: 0.2rem 0.45rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    font-size: 0.9rem;
}

.shell {
    display: flex;
    min-height: 100vh;
    position: relative;
    z-index: 1;
}

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

.bg-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(12px);
    opacity: 0.65;
}

.bg-orb-a {
    top: -140px;
    right: -60px;
    width: 420px;
    height: 420px;
    background: radial-gradient(circle, rgba(90, 169, 255, 0.42), rgba(90, 169, 255, 0));
}

.bg-orb-b {
    bottom: -200px;
    left: -80px;
    width: 520px;
    height: 520px;
    background: radial-gradient(circle, rgba(31, 212, 167, 0.28), rgba(31, 212, 167, 0));
}

.bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(140, 185, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(140, 185, 255, 0.05) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(circle at center, rgba(0, 0, 0, 0.78), transparent 90%);
}

.bg-noise {
    position: absolute;
    inset: 0;
    opacity: 0.08;
    background-image:
        radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.35) 0 1px, transparent 1px),
        radial-gradient(circle at 80% 30%, rgba(255, 255, 255, 0.25) 0 1px, transparent 1px),
        radial-gradient(circle at 30% 70%, rgba(255, 255, 255, 0.3) 0 1px, transparent 1px),
        radial-gradient(circle at 70% 80%, rgba(255, 255, 255, 0.2) 0 1px, transparent 1px);
    background-size: 180px 180px;
}

.sidebar {
    display: flex;
    flex-direction: column;
    width: 260px;
    padding: 28px 20px;
    border-right: 1px solid var(--panel-border);
    background: linear-gradient(180deg, rgba(5, 15, 30, 0.82), rgba(7, 16, 30, 0.6));
    backdrop-filter: blur(24px);
    position: sticky;
    top: 0;
    height: 100vh;
}

.brand {
    display: flex;
    gap: 14px;
    align-items: center;
    margin-bottom: 28px;
}

.brand-badge {
    display: grid;
    place-items: center;
    width: 46px;
    height: 46px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--primary), #76ffd6);
    color: #06101f;
    font-weight: 800;
    font-size: 1.3rem;
}

.brand p,
.panel p,
.stat-card p,
.auth-card p,
.hero-card p {
    color: var(--muted);
}

.nav {
    display: grid;
    gap: 10px;
    margin-bottom: 24px;
}

.nav a {
    padding: 12px 14px;
    border: 1px solid transparent;
    border-radius: 14px;
    color: var(--muted);
    transition: 0.2s ease;
}

.nav a:hover,
.nav a.active {
    color: var(--text);
    border-color: var(--panel-border);
    background: rgba(90, 169, 255, 0.1);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.03), 0 10px 30px rgba(0, 0, 0, 0.18);
}

.sidebar-card {
    margin-top: auto;
    display: grid;
    gap: 10px;
    padding: 18px;
    border-radius: 22px;
    border: 1px solid rgba(152, 189, 255, 0.14);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03));
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.sidebar-card strong {
    font-size: 1rem;
}

.sidebar-card p {
    margin: 0;
    color: var(--muted);
    line-height: 1.6;
}

.content {
    flex: 1;
    padding: 32px;
}

.content-inner {
    width: min(1360px, 100%);
    margin: 0 auto;
}

.content-full {
    display: grid;
    place-items: center;
}

.auth-layout {
    display: grid;
    grid-template-columns: minmax(320px, 460px);
    gap: 24px;
    width: min(460px, 100%);
    justify-content: center;
}

.auth-layout-wide {
    grid-template-columns: minmax(320px, 1.25fr) minmax(320px, 460px);
    width: min(1180px, 100%);
    align-items: stretch;
}

.hero-card,
.auth-card,
.panel,
.stat-card {
    border: 1px solid var(--panel-border);
    border-radius: 28px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02)),
        var(--panel);
    box-shadow: var(--shadow);
    backdrop-filter: blur(20px);
    position: relative;
    overflow: hidden;
}

.hero-card::before,
.auth-card::before,
.panel::before,
.stat-card::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 1px;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0), rgba(201, 228, 255, 0.68), rgba(255, 255, 255, 0));
    opacity: 0.75;
    pointer-events: none;
}

.hero-card {
    padding: 38px;
}

.auth-card,
.panel {
    padding: 28px;
}

.eyebrow,
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    background: rgba(90, 169, 255, 0.12);
    color: #b5d8ff;
    font-size: 0.85rem;
    letter-spacing: 0.04em;
}

.feature-grid,
.stats-grid,
.panel-grid {
    display: grid;
    gap: 18px;
}

.feature-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin-top: 28px;
}

.feature-grid article {
    padding: 18px;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.stack-form {
    display: grid;
    gap: 16px;
}

.stack-form label {
    display: grid;
    gap: 8px;
    color: var(--muted);
}

.stack-form input {
    width: 100%;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.04);
    color: var(--text);
    padding: 14px 16px;
    font-size: 1rem;
}

.stack-form input:focus {
    outline: none;
    border-color: rgba(90, 169, 255, 0.55);
    box-shadow: 0 0 0 4px rgba(90, 169, 255, 0.12);
}

.primary-btn {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: fit-content;
    min-width: 140px;
    border: none;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--primary), var(--success));
    color: #06101f;
    padding: 13px 22px;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 14px 30px rgba(62, 142, 235, 0.26);
    transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.primary-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 18px 34px rgba(62, 142, 235, 0.32);
    filter: saturate(1.08);
}

.page-header,
.panel-title,
.upload-list li,
.login-hint {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.page-header {
    margin-bottom: 24px;
}

.page-header-hero {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(300px, 420px) auto;
    align-items: center;
    padding: 30px;
    border: 1px solid rgba(152, 189, 255, 0.16);
    border-radius: 32px;
    background:
        radial-gradient(circle at top right, rgba(90, 169, 255, 0.12), transparent 32%),
        linear-gradient(160deg, rgba(15, 34, 63, 0.96), rgba(9, 20, 39, 0.9));
    box-shadow: var(--shadow);
    overflow: hidden;
}

.page-header-hero::after {
    content: "";
    position: absolute;
    inset: auto -80px -120px auto;
    width: 280px;
    height: 280px;
    background: radial-gradient(circle, rgba(126, 240, 204, 0.18), rgba(126, 240, 204, 0));
    pointer-events: none;
}

.page-header-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0)),
        repeating-linear-gradient(
            90deg,
            rgba(146, 189, 255, 0.04) 0,
            rgba(146, 189, 255, 0.04) 1px,
            transparent 1px,
            transparent 54px
        );
    opacity: 0.7;
    pointer-events: none;
}

.page-copy {
    display: grid;
    gap: 14px;
    z-index: 1;
}

.page-copy h1 {
    margin: 0;
    font-size: clamp(2rem, 3vw, 3rem);
    line-height: 1.1;
}

.page-copy p {
    margin: 0;
    max-width: 700px;
    color: #c0d5ee;
    line-height: 1.8;
}

.page-header-media {
    position: relative;
    justify-self: center;
    width: min(100%, 380px);
    z-index: 1;
}

.media-badge {
    position: absolute;
    right: 14px;
    bottom: 18px;
    display: inline-flex;
    align-items: center;
    padding: 0.45rem 0.9rem;
    border-radius: 999px;
    background: rgba(8, 19, 34, 0.82);
    border: 1px solid rgba(152, 189, 255, 0.18);
    color: #d9ebff;
    font-size: 0.82rem;
    backdrop-filter: blur(14px);
}

.page-actions,
.download-links,
.download-actions,
.download-options {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.download-link-group {
    display: grid;
    gap: 10px;
}

.download-link-label {
    color: var(--muted);
    font-size: 0.9rem;
}

.status-pills,
.feature-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.status-pill,
.feature-tags span {
    display: inline-flex;
    align-items: center;
    padding: 0.45rem 0.8rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(152, 189, 255, 0.15);
    color: #d5e8ff;
    font-size: 0.84rem;
    letter-spacing: 0.02em;
}

.dashboard-stats {
    margin-bottom: 24px;
}

.metric-card {
    display: grid;
    gap: 10px;
    min-height: 196px;
}

.metric-card p {
    margin: 0;
    line-height: 1.7;
}

.metric-trend {
    display: inline-flex;
    align-items: center;
    width: fit-content;
    padding: 0.4rem 0.75rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
    color: #cae3ff;
    font-size: 0.84rem;
}

.metric-up {
    background: rgba(31, 212, 167, 0.12);
    color: #9bf2d7;
}

.quick-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
    margin-bottom: 24px;
}

.quick-grid-compact {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.quick-card {
    display: grid;
    gap: 12px;
    padding: 22px;
    border-radius: 24px;
    border: 1px solid rgba(152, 189, 255, 0.16);
    background: linear-gradient(180deg, rgba(13, 29, 53, 0.95), rgba(9, 20, 39, 0.86));
    box-shadow: var(--shadow);
    transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
    position: relative;
    overflow: hidden;
}

.quick-card::after {
    content: "";
    position: absolute;
    inset: auto -40px -70px auto;
    width: 140px;
    height: 140px;
    background: radial-gradient(circle, rgba(122, 242, 197, 0.14), rgba(122, 242, 197, 0));
    pointer-events: none;
}

.quick-card:hover {
    transform: translateY(-4px);
    border-color: rgba(90, 169, 255, 0.35);
    background: linear-gradient(180deg, rgba(16, 35, 64, 0.98), rgba(10, 24, 45, 0.9));
}

.quick-card strong {
    font-size: 1.1rem;
}

.quick-card p {
    margin: 0;
    color: var(--muted);
    line-height: 1.6;
}

.quick-badge {
    display: inline-flex;
    align-items: center;
    width: fit-content;
    padding: 0.35rem 0.7rem;
    border-radius: 999px;
    background: rgba(90, 169, 255, 0.12);
    color: #b5d8ff;
    font-size: 0.82rem;
    letter-spacing: 0.04em;
}

.static-card {
    cursor: default;
}

.static-card:hover {
    transform: none;
}

.stats-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin-bottom: 24px;
}

.stat-card {
    padding: 24px;
}

.stat-card strong {
    display: block;
    margin: 10px 0;
    font-size: 1.8rem;
}

.panel-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.panel-soft {
    background: linear-gradient(180deg, rgba(14, 28, 51, 0.92), rgba(9, 20, 39, 0.88));
}

.feature-panel {
    margin-bottom: 24px;
}

.ops-board {
    margin-bottom: 24px;
}

.ops-grid {
    display: grid;
    grid-template-columns: minmax(340px, 1.15fr) minmax(320px, 0.85fr);
    gap: 24px;
    align-items: stretch;
}

.ops-map {
    position: relative;
    min-height: 360px;
    border-radius: 28px;
    overflow: hidden;
    border: 1px solid rgba(152, 189, 255, 0.14);
    background:
        radial-gradient(circle at top center, rgba(97, 173, 255, 0.18), transparent 30%),
        linear-gradient(180deg, rgba(11, 27, 50, 0.96), rgba(8, 19, 35, 0.92));
}

.scan-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(134, 188, 255, 0.07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(134, 188, 255, 0.07) 1px, transparent 1px);
    background-size: 44px 44px;
}

.ops-map::after {
    content: "";
    position: absolute;
    inset: -40% 0 auto 0;
    height: 70%;
    background: linear-gradient(180deg, rgba(122, 242, 197, 0), rgba(122, 242, 197, 0.18), rgba(122, 242, 197, 0));
    animation: scan-sweep 7s linear infinite;
    pointer-events: none;
}

.pulse-node {
    position: absolute;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: radial-gradient(circle, #dff4ff 0, #70c4ff 58%, rgba(112, 196, 255, 0) 70%);
    box-shadow: 0 0 0 10px rgba(104, 181, 255, 0.12), 0 0 34px rgba(104, 181, 255, 0.34);
    animation: pulse-node 2.8s ease-in-out infinite;
}

.pulse-node-a {
    top: 28%;
    left: 22%;
}

.pulse-node-b {
    top: 54%;
    left: 50%;
    animation-delay: 0.4s;
}

.pulse-node-c {
    top: 32%;
    right: 18%;
    animation-delay: 0.8s;
}

.ops-connection {
    position: absolute;
    height: 2px;
    transform-origin: left center;
    background: linear-gradient(90deg, rgba(111, 197, 255, 0.08), rgba(111, 197, 255, 0.9), rgba(126, 240, 204, 0.08));
    box-shadow: 0 0 20px rgba(97, 173, 255, 0.28);
}

.ops-connection-a {
    top: 31%;
    left: 24%;
    width: 180px;
    transform: rotate(22deg);
}

.ops-connection-b {
    top: 53%;
    left: 50%;
    width: 170px;
    transform: rotate(-28deg);
}

.ops-copy {
    position: absolute;
    left: 34px;
    right: 34px;
    bottom: 30px;
    display: grid;
    gap: 12px;
    padding: 22px;
    border-radius: 24px;
    background: rgba(7, 18, 32, 0.74);
    border: 1px solid rgba(152, 189, 255, 0.12);
    backdrop-filter: blur(16px);
}

.ops-copy h3 {
    margin: 0;
    font-size: 1.35rem;
}

.ops-copy p {
    margin: 0;
    color: #c0d5ee;
    line-height: 1.7;
}

.signal-list {
    display: grid;
    gap: 16px;
}

.signal-row {
    display: grid;
    gap: 14px;
    padding: 18px 20px;
    border-radius: 22px;
    border: 1px solid rgba(152, 189, 255, 0.12);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
}

.signal-row strong,
.feature-grid strong {
    font-size: 1rem;
}

.signal-row p {
    margin: 6px 0 0;
    color: var(--muted);
    line-height: 1.6;
}

.signal-meter {
    position: relative;
    width: 100%;
    height: 10px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
    overflow: hidden;
}

.signal-fill {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, #69b7ff, #7df1cd);
    box-shadow: 0 0 20px rgba(105, 183, 255, 0.34);
}

.w-84 {
    width: 84%;
}

.w-88 {
    width: 88%;
}

.w-92 {
    width: 92%;
}

.w-96 {
    width: 96%;
}

.feature-split {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(260px, 360px);
    gap: 24px;
    align-items: center;
}

.feature-copy {
    display: grid;
    gap: 16px;
}

.feature-copy p {
    margin: 0;
    color: #c0d5ee;
    line-height: 1.8;
}

.hero-illustration,
.feature-image {
    display: block;
    width: 100%;
    max-width: 100%;
    height: auto;
    filter: drop-shadow(0 26px 60px rgba(0, 0, 0, 0.34));
}

.hero-illustration-auth {
    max-width: 520px;
    margin: 24px auto 0;
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.download-card {
    display: grid;
    gap: 18px;
}

.download-links a,
.link-btn,
.secondary-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 96px;
    padding: 11px 16px;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text);
    transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.download-links a:hover,
.link-btn:hover,
.secondary-btn:hover {
    transform: translateY(-1px);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(152, 189, 255, 0.2);
}

.random-download-link {
    position: relative;
}

.secondary-btn {
    min-width: 120px;
}

.download-option {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    padding: 18px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.download-option:last-child {
    border-bottom: 0;
}

.panel-title-start {
    align-items: flex-start;
}

.code-block {
    display: grid;
    gap: 12px;
}

.code-block code {
    width: fit-content;
    padding: 0.65rem 0.9rem;
    border-radius: 14px;
}

.api-list,
.upload-list {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 14px;
}

.api-list li,
.upload-list li {
    padding: 16px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.api-list li:last-child,
.upload-list li:last-child {
    border-bottom: 0;
}

.api-list span,
.upload-list span,
.empty-state,
.upload-feedback {
    color: var(--muted);
}

.alert {
    padding: 12px 14px;
    border-radius: 14px;
    margin-bottom: 16px;
}

.alert-error {
    color: #ffd2d2;
    background: rgba(255, 123, 123, 0.12);
    border: 1px solid rgba(255, 123, 123, 0.3);
}

.upload-feedback {
    margin-top: 16px;
    min-height: 22px;
}

.upload-feedback.success {
    color: #8ef0cf;
}

.upload-feedback.error {
    color: #ffc5c5;
}

.pagination-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-top: 18px;
    flex-wrap: wrap;
}

.pagination-meta {
    color: var(--muted);
    font-size: 0.94rem;
}

.pagination-disabled {
    opacity: 0.45;
    cursor: not-allowed;
    pointer-events: none;
}

.cursor-trail {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9999;
}

.cursor-glow {
    position: fixed;
    left: 0;
    top: 0;
    width: 180px;
    height: 180px;
    margin-left: -90px;
    margin-top: -90px;
    border-radius: 50%;
    pointer-events: none;
    z-index: 9998;
    opacity: 0;
    background: radial-gradient(circle, rgba(150, 218, 255, 0.18), rgba(126, 240, 204, 0.07) 42%, rgba(126, 240, 204, 0) 72%);
    filter: blur(10px);
    transition: opacity 0.2s ease;
    will-change: transform;
}

.snowflake {
    position: fixed;
    width: 14px;
    height: 14px;
    margin-left: -7px;
    margin-top: -7px;
    opacity: 0;
    transform: translate3d(0, 0, 0) scale(0.7);
    will-change: transform, opacity;
    animation: snow-trail 1.1s ease-out forwards;
}

.snowflake.spark {
    width: 7px;
    height: 7px;
    margin-left: -3.5px;
    margin-top: -3.5px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(227, 246, 255, 0.95), rgba(128, 211, 255, 0.7) 46%, rgba(128, 211, 255, 0) 72%);
    box-shadow: 0 0 12px rgba(128, 211, 255, 0.45);
    animation: spark-trail 0.9s ease-out forwards;
}

.snowflake.spark::before,
.snowflake.spark::after,
.snowflake.spark span,
.snowflake.spark span::before {
    display: none;
}

.snowflake::before,
.snowflake::after {
    content: "";
    position: absolute;
    inset: 50% auto auto 50%;
    width: 14px;
    height: 2px;
    margin-left: -7px;
    margin-top: -1px;
    border-radius: 999px;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0), rgba(220, 243, 255, 1), rgba(255, 255, 255, 0));
    box-shadow: 0 0 12px rgba(145, 214, 255, 0.72);
}

.snowflake::after {
    transform: rotate(60deg);
}

.snowflake span {
    position: absolute;
    inset: 0;
}

.snowflake span::before {
    content: "";
    position: absolute;
    inset: 50% auto auto 50%;
    width: 14px;
    height: 2px;
    margin-left: -7px;
    margin-top: -1px;
    border-radius: 999px;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0), rgba(220, 243, 255, 0.95), rgba(255, 255, 255, 0));
    transform: rotate(120deg);
    box-shadow: 0 0 12px rgba(126, 240, 204, 0.44);
}

@keyframes snow-trail {
    0% {
        opacity: 0.96;
        transform: translate3d(var(--drift-x, 0px), var(--drift-y, 0px), 0) scale(0.9) rotate(0deg);
    }
    100% {
        opacity: 0;
        transform: translate3d(calc(var(--drift-x, 0px) * 2), calc(var(--drift-y, 0px) + 24px), 0) scale(0.2) rotate(120deg);
    }
}

@keyframes spark-trail {
    0% {
        opacity: 0.9;
        transform: translate3d(var(--drift-x, 0px), var(--drift-y, 0px), 0) scale(1);
    }
    100% {
        opacity: 0;
        transform: translate3d(calc(var(--drift-x, 0px) * 2.4), calc(var(--drift-y, 0px) + 18px), 0) scale(0.1);
    }
}

@keyframes pulse-node {
    0%,
    100% {
        transform: scale(1);
        box-shadow: 0 0 0 10px rgba(104, 181, 255, 0.12), 0 0 34px rgba(104, 181, 255, 0.34);
    }
    50% {
        transform: scale(1.18);
        box-shadow: 0 0 0 16px rgba(104, 181, 255, 0.08), 0 0 44px rgba(126, 240, 204, 0.4);
    }
}

@keyframes scan-sweep {
    0% {
        transform: translateY(-10%);
    }
    100% {
        transform: translateY(210%);
    }
}

@media (max-width: 960px) {
    .shell,
    .auth-layout,
    .panel-grid,
    .stats-grid,
    .feature-grid,
    .download-grid,
    .quick-grid,
    .quick-grid-compact {
        grid-template-columns: 1fr;
        display: grid;
    }

    .sidebar {
        width: 100%;
        border-right: 0;
        border-bottom: 1px solid var(--panel-border);
        position: static;
        height: auto;
    }

    .download-option,
    .page-header {
        align-items: flex-start;
        flex-direction: column;
    }

    .page-header-hero,
    .feature-split,
    .auth-layout-wide,
    .ops-grid {
        grid-template-columns: 1fr;
    }

    .page-actions {
        width: 100%;
    }

    .page-actions a,
    .primary-btn,
    .secondary-btn,
    .link-btn {
        width: 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .cursor-trail {
        display: none;
    }
}