@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500;600;700;800&display=swap');

:root {
    --hud-ink: #0a0d0c;
    --hud-panel: rgba(16, 21, 19, 0.9);
    --hud-line: rgba(148, 163, 184, 0.28);
    --hud-text: #e2e8f0;
    --hud-muted: #94a3b8;
    --hud-signal: #53f6a1;
    --hud-signal-dim: rgba(83, 246, 161, 0.14);
    --site-font: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei UI', 'Microsoft YaHei', sans-serif;
    --hud-mono: var(--site-font);
    --hud-body: var(--site-font);
    --radius-control: 10px;
    --radius-card: 16px;
    --radius-media: 14px;
}

body {
    font-family: var(--hud-body);
    letter-spacing: 0;
    text-transform: none;
}

body.dark-mode,
body.members-page {
    background-color: var(--hud-ink);
    color: var(--hud-text);
}

body.dark-mode h1,
body.dark-mode h2,
body.dark-mode h3,
body.dark-mode h4,
body.dark-mode h5,
body.dark-mode h6,
body.members-page h1,
body.members-page h2,
body.members-page h3 {
    color: var(--hud-text);
}

.background-blur {
    right: 0 !important;
    transform: none;
    pointer-events: none;
}

h1, h2, h3, h4, h5, h6,
.nav-logo, .nav-link, .nav-icon, .btn, button,
.eyebrow, .section-eyebrow, code, .tag, .rank-chip,
.hero-store-eyebrow, .hero-store-tagline, .new-flag,
.timeline-date, .tl-year, .team-sigil, .hud-status {
    font-family: var(--hud-mono);
}

.nav-logo, h1, h2, h3 {
    letter-spacing: -0.025em;
}

.nav-link, .nav-icon, .btn, .eyebrow, .section-eyebrow,
.hero-store-eyebrow, .hud-status {
    letter-spacing: 0.015em;
}

.hud-icon {
    width: 1.15em;
    height: 1.15em;
    display: block;
    flex: 0 0 auto;
    vector-effect: non-scaling-stroke;
}

[data-hud-icon] {
    display: inline-grid;
    place-items: center;
}

.card-icon {
    border-radius: 2px !important;
    border: 1px solid rgba(83, 246, 161, 0.32);
    color: #047857;
    background: rgba(83, 246, 161, 0.1) !important;
}

body.dark-mode .card-icon,
body.members-page .card-icon {
    color: var(--hud-signal);
}

.float-btn {
    border-radius: 8px !important;
    font-size: 1rem !important;
}

.navbar {
    border-bottom: 1px solid rgba(100, 116, 139, 0.2);
}

.btn {
    border-radius: 6px !important;
}

.float-btn .hud-icon {
    width: 18px;
    height: 18px;
}

.project-card, .os-card, .platform-card, .tl-entry,
.award-card, .uniform-card, .info-block, .venue-card,
.event-showcase, .pool-item {
    position: relative;
}

.project-card, .os-card, .platform-card, .tl-entry,
.award-card, .uniform-card, .info-block, .venue-card,
.event-showcase, .pool-item { border-radius: 8px !important; }

.hud-corner {
    --hud-corner-size: 11px;
    position: absolute;
    width: var(--hud-corner-size);
    height: var(--hud-corner-size);
    z-index: 8;
    pointer-events: none;
    opacity: 0.68;
    color: #64748b;
}

.hud-corner--tl { top: 6px; left: 6px; border-top: 1px solid; border-left: 1px solid; }
.hud-corner--tr { top: 6px; right: 6px; border-top: 1px solid; border-right: 1px solid; }
.hud-corner--bl { bottom: 6px; left: 6px; border-bottom: 1px solid; border-left: 1px solid; }
.hud-corner--br { bottom: 6px; right: 6px; border-bottom: 1px solid; border-right: 1px solid; }

.project-card:hover .hud-corner,
.os-card:hover .hud-corner,
.platform-card:hover .hud-corner,
.tl-entry:hover .hud-corner,
.uniform-card:hover .hud-corner {
    color: var(--hud-signal);
    opacity: 1;
}

.hud-status {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    margin-left: 0.8rem;
    padding: 4px 7px;
    border: 1px solid rgba(83, 246, 161, 0.28);
    background: var(--hud-signal-dim);
    color: #047857;
    font-size: 0.58rem;
    font-weight: 700;
    line-height: 1;
    vertical-align: middle;
    letter-spacing: 0.08em;
}

body.dark-mode .hud-status,
body.members-page .hud-status {
    color: var(--hud-signal);
}

.hud-status i {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: currentColor;
    box-shadow: 0 0 0 0 rgba(83, 246, 161, 0.6);
    animation: hud-pulse 2s ease-out infinite;
}

.hud-status b { font: inherit; }

.hud-module-title {
    display: flex;
    align-items: center;
    gap: 0.55rem;
}

.hud-live {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    color: #047857;
    font: 700 0.5rem/1 var(--hud-mono);
    letter-spacing: 0.09em;
}

body.dark-mode .hud-live,
body.members-page .hud-live { color: var(--hud-signal); }

.hud-live i {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: currentColor;
    animation: hud-breathe 1.8s ease-in-out infinite;
}

.hud-kicker {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 0.9rem;
    color: var(--hud-signal);
    font: 600 0.68rem/1 var(--hud-mono);
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.hud-kicker::before {
    content: '';
    width: 6px;
    height: 6px;
    background: currentColor;
    border-radius: 50%;
    box-shadow: 0 0 12px currentColor;
    animation: hud-breathe 1.8s ease-in-out infinite;
}

.team-sigil {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    white-space: nowrap;
}

.team-sigil .hud-icon { width: 15px; height: 15px; }

.arrow .hud-icon,
.card-btn [data-hud-icon] .hud-icon,
.hero-scroll-hint .hud-icon { width: 1em; height: 1em; }

.card-btn [data-hud-icon],
.hero-scroll-hint [data-hud-icon] { display: inline-grid; vertical-align: -0.12em; }

.rank-chip {
    display: inline-flex !important;
    align-items: center;
    gap: 0.35rem;
}

.rank-chip .hud-icon { width: 14px; height: 14px; }

.os-icon .hud-icon,
.robot-icon .hud-icon { width: 1.2em; height: 1.2em; }

#result-display:has(.hud-icon) {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
}

#result-display .hud-icon { width: 1.2em; height: 1.2em; }

body.dark-mode .project-card,
body.dark-mode .os-card,
body.dark-mode .platform-card,
body.dark-mode .event-showcase,
body.dark-mode .venue-card {
    border-color: var(--hud-line);
}

body.dark-mode .project-card p,
body.dark-mode .os-card p,
body.dark-mode .platform-card p,
body.dark-mode .section-sub,
body.dark-mode .subtitle {
    color: var(--hud-muted);
}

@keyframes hud-pulse {
    0% { box-shadow: 0 0 0 0 rgba(83, 246, 161, 0.55); }
    70%, 100% { box-shadow: 0 0 0 7px rgba(83, 246, 161, 0); }
}

@keyframes hud-breathe {
    0%, 100% { opacity: 0.45; transform: scale(0.82); }
    50% { opacity: 1; transform: scale(1); }
}

@media (max-width: 640px) {
    .hud-status b { display: none; }
    .hud-status { padding: 4px; margin-left: 0.4rem; }
}

@media (prefers-reduced-motion: reduce) {
    .hud-status i, .hud-kicker::before, .hud-live i { animation: none; }
}

/* =========================================================
   CINEMATIC PAGE RHYTHM
   Full-width chapter layout inspired by engineering team sites.
   ========================================================= */

.navbar {
    min-height: 78px;
    padding-top: 0 !important;
    padding-bottom: 0 !important;
    position: sticky;
    top: 0;
    z-index: 90;
    background: rgba(5, 7, 6, 0.94);
    border-bottom: 1px solid rgba(226, 232, 240, 0.12);
    box-shadow: 0 0 0 100vmax rgba(5, 7, 6, 0.94);
    clip-path: inset(0 -100vmax);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.nav-logo {
    color: #f8fafc;
    white-space: nowrap;
}

.nav-right {
    min-width: 0;
}

.nav-link,
.nav-icon,
body.dark-mode .nav-link,
body.dark-mode .nav-icon {
    color: #cbd5e1;
    font-size: 0.78rem;
    font-weight: 600;
    position: relative;
}

.nav-link::after,
.nav-icon::after {
    content: '';
    position: absolute;
    left: 0;
    right: 100%;
    bottom: -9px;
    height: 1px;
    background: var(--hud-signal);
    transition: right 220ms ease;
}

.nav-link:hover::after,
.nav-icon:hover::after {
    right: 0;
}

.fixed-header-wrapper .navbar {
    position: relative;
}

/* Home: hero followed by a sequence of full-bleed visual chapters. */
.home-page .container {
    max-width: 1180px;
}

.home-page .hero {
    min-height: calc(100svh - 78px);
    padding: clamp(5rem, 10vh, 9rem) 0;
    display: grid;
    grid-template-columns: minmax(0, 1.18fr) minmax(280px, 0.82fr);
    align-items: center;
    gap: clamp(2rem, 7vw, 7rem);
    position: relative;
}

.home-page .hero::before {
    content: none;
}

.home-page .hero-content {
    position: relative;
    z-index: 2;
}

.home-motion .hero-content {
    transform: translate3d(0, var(--hero-shift, 0), 0);
    opacity: var(--hero-opacity, 1);
    will-change: transform, opacity;
}

.home-motion .hero-logo {
    transform: translate3d(0, var(--hero-logo-shift, 0), 0);
    opacity: var(--hero-opacity, 1);
    will-change: transform, opacity;
}

.home-page .hero h1 {
    font-size: clamp(1.25rem, 2.5vw, 2.4rem);
    line-height: 1;
    margin-bottom: 1.2rem;
}

.home-page .hero h2 {
    max-width: 760px;
    font-size: clamp(3.9rem, 8.3vw, 7.8rem);
    line-height: 0.88;
    letter-spacing: -0.04em;
    text-wrap: balance;
}

.home-page .hero-buttons {
    margin-top: clamp(2.2rem, 5vh, 4rem);
}

.home-page .hero-buttons .btn {
    min-height: 44px;
    padding-inline: 1.5rem;
}

.home-page .hero-slogan {
    margin-top: clamp(2rem, 4vh, 3.2rem);
    color: #cbd5e1;
    font-size: clamp(1rem, 1.8vw, 1.35rem);
    font-weight: 600;
    letter-spacing: 0.14em !important;
}

.home-page .hero-logo {
    width: min(100%, 500px);
    height: min(42vw, 430px);
    min-height: 290px;
    padding: clamp(1rem, 3vw, 2.5rem);
    position: relative;
}

.home-page .hero-logo::before,
.home-page .hero-logo::after {
    content: none;
}

.home-page .hero-logo::before {
    top: 0;
    left: 0;
    border-top: 1px solid var(--hud-signal);
    border-left: 1px solid var(--hud-signal);
}

.home-page .hero-logo::after {
    right: 0;
    bottom: 0;
    border-right: 1px solid var(--hud-signal);
    border-bottom: 1px solid var(--hud-signal);
}

.home-page .hero-logo img {
    width: 100%;
    max-height: 100%;
    filter: drop-shadow(0 18px 50px rgba(0, 0, 0, 0.5));
}

.home-page .project-grid {
    width: 100vw;
    margin-left: calc(50% - 50vw);
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
    padding: 0;
    background: #050706;
}

.home-page .project-grid > a {
    display: block;
    min-width: 0;
}

.home-page .project-card {
    min-height: min(82svh, 880px);
    padding: clamp(3rem, 8vw, 8rem);
    border: 0 !important;
    border-top: 1px solid rgba(226, 232, 240, 0.12) !important;
    border-radius: 0 !important;
    align-items: center;
    justify-content: center;
    text-align: center;
    isolation: isolate;
    background: #080b0a !important;
    box-shadow: none !important;
    transform: none !important;
}

.home-page .project-card::before {
    inset: 0;
    z-index: 1;
    opacity: 1 !important;
    filter: none !important;
    background:
        linear-gradient(180deg, rgba(3, 5, 4, 0.82) 0%, rgba(3, 5, 4, 0.28) 42%, rgba(3, 5, 4, 0.74) 100%),
        linear-gradient(90deg, rgba(3, 5, 4, 0.38), transparent 50%, rgba(3, 5, 4, 0.38)) !important;
}

.home-page .project-card::after {
    inset: 0;
    z-index: 1;
    opacity: 1 !important;
    background: radial-gradient(circle at center, transparent 0%, rgba(2, 4, 3, 0.12) 48%, rgba(2, 4, 3, 0.62) 100%) !important;
}

.home-page .card-bg-image {
    inset: -6% 0;
    width: 100%;
    height: auto;
    z-index: 0;
    opacity: 0.72 !important;
    filter: saturate(0.72) contrast(1.08) brightness(0.72) !important;
    background-position: center;
    background-size: cover;
    mask-image: none;
    -webkit-mask-image: none;
    transform: translate3d(0, var(--chapter-shift, 0), 0) scale(1.08);
    transition: transform 900ms cubic-bezier(.2,.7,.2,1), filter 500ms ease !important;
    will-change: transform;
}

.home-page .project-card:hover .card-bg-image {
    opacity: 0.78 !important;
    filter: saturate(0.92) contrast(1.08) brightness(0.78) !important;
    transform: translate3d(0, var(--chapter-shift, 0), 0) scale(1.11);
}

.home-page .card-bg-image[data-bg]:not(.is-loaded) {
    opacity: 0 !important;
}

.home-page .card-bg-image[data-bg].is-loaded {
    transition:
        opacity 360ms ease,
        transform 900ms cubic-bezier(.2,.7,.2,1),
        filter 500ms ease !important;
}

.home-page .project-card .card-icon,
.home-page .project-card h3,
.home-page .project-card p {
    z-index: 3;
}

.home-page .project-card .card-icon {
    width: 54px;
    height: 54px;
    margin-bottom: 1.5rem;
    color: var(--hud-signal);
    background: rgba(4, 9, 7, 0.55) !important;
    border-color: rgba(83, 246, 161, 0.55);
    backdrop-filter: blur(10px);
    border-radius: 10px !important;
}

.home-page .project-card .card-icon .hud-icon {
    width: 25px;
    height: 25px;
}

.home-page .project-card h3,
body.dark-mode.home-page .project-card h3 {
    justify-content: center;
    color: #f8fafc;
    font-size: clamp(2.6rem, 6vw, 6rem);
    line-height: 0.95;
    letter-spacing: -0.03em;
    margin-bottom: 1.15rem;
    text-shadow: 0 3px 30px rgba(0, 0, 0, 0.72);
}

.home-page .project-card p,
body.dark-mode.home-page .project-card p {
    max-width: 620px;
    color: #d7dee8;
    font-size: clamp(0.9rem, 1.4vw, 1.08rem);
    line-height: 1.8;
    text-shadow: 0 2px 16px rgba(0, 0, 0, 0.95);
}

.home-page .project-card .hud-live {
    color: var(--hud-signal);
    font-size: 0.58rem;
    letter-spacing: 0.12em;
}

.home-page .project-card .hud-corner {
    --hud-corner-size: 24px;
    margin: clamp(1rem, 2vw, 2rem);
    color: rgba(226, 232, 240, 0.58);
}

/* Scroll reveal: one coordinated entrance per chapter. */
.home-motion .project-card .card-icon,
.home-motion .project-card h3,
.home-motion .project-card p {
    opacity: 0;
    transform: translate3d(0, 32px, 0);
    filter: blur(5px);
    transition:
        opacity 700ms cubic-bezier(.2,.7,.2,1),
        transform 850ms cubic-bezier(.16,1,.3,1),
        filter 700ms ease;
}

.home-motion .project-card.is-visible .card-icon,
.home-motion .project-card.is-visible h3,
.home-motion .project-card.is-visible p {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    filter: blur(0);
}

.home-motion .project-card .card-icon { transition-delay: 40ms; }
.home-motion .project-card h3 { transition-delay: 130ms; }
.home-motion .project-card p { transition-delay: 230ms; }
.home-motion .project-card p + p { transition-delay: 310ms; }

.home-motion .project-card::after {
    transition: opacity 900ms ease !important;
}

.home-motion .project-card:not(.is-visible)::after {
    opacity: 0.72 !important;
}

@media (max-width: 900px) {
    .home-page .hero {
        grid-template-columns: 1fr;
        text-align: left;
        gap: 2.5rem;
    }

    .home-page .hero-logo {
        position: absolute;
        right: -6vw;
        bottom: 7vh;
        width: min(56vw, 390px);
        height: auto;
        min-height: 0;
        opacity: 0.24;
        z-index: 0;
    }

    .home-page .hero-buttons {
        justify-content: flex-start;
    }
}

/* Home back-to-top control: quiet, tactile, and centered at the viewport edge. */
.home-page .floating-buttons {
    top: 50%;
    right: clamp(1rem, 2vw, 2rem);
    bottom: auto;
    transform: translateY(-50%);
    z-index: 30;
}

body.home-page .back-to-top {
    width: 48px;
    height: 48px;
    border: 1px solid rgba(148, 163, 184, 0.24);
    border-radius: 12px !important;
    background: rgba(16, 21, 19, 0.82);
    color: var(--hud-muted);
    box-shadow:
        0 14px 34px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.04);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(10px);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    transition:
        opacity 180ms ease,
        transform 180ms ease,
        border-color 180ms ease,
        background-color 180ms ease,
        color 180ms ease,
        box-shadow 180ms ease;
}

body.home-page .back-to-top.is-visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
}

body.home-page .back-to-top.is-visible:hover {
    transform: translateY(-3px);
    border-color: rgba(83, 246, 161, 0.5);
    background: rgba(20, 31, 26, 0.94);
    color: var(--hud-signal);
    box-shadow:
        0 18px 38px rgba(0, 0, 0, 0.38),
        0 0 0 3px rgba(83, 246, 161, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

body.home-page .back-to-top.is-visible:active {
    transform: translateY(-1px);
}

body.home-page .back-to-top:focus-visible {
    outline: 2px solid var(--hud-signal);
    outline-offset: 3px;
}

body.home-page .back-to-top .hud-icon {
    width: 20px;
    height: 20px;
}

@media (prefers-reduced-motion: reduce) {
    body.home-page .back-to-top {
        transition: none;
    }
}

/* Unified rounded-rectangle geometry. */
button,
.btn,
.float-btn,
.card-btn,
.carousel-btn,
.buy-link,
.nav-chip,
.role-badge,
.tag,
.rank-chip,
.section-eyebrow,
.new-flag,
.os-year-tag,
.award-badge,
.detail-badge {
    border-radius: var(--radius-control) !important;
}

.project-card,
.os-card,
.platform-card,
.tl-entry,
.award-card,
.uniform-card,
.info-block,
.venue-card,
.event-showcase,
.pool-item,
.announcement,
.picker-side,
.detail-side {
    border-radius: var(--radius-card) !important;
}

.card-icon,
.icon-box,
.os-icon,
.card-image,
.img-wrapper,
.portrait-console,
.detail-gallery,
.highlight-bg,
.specs-table-wrapper {
    border-radius: var(--radius-media) !important;
}

.float-btn {
    width: 48px;
    height: 40px;
}

/* Full-bleed home chapters intentionally remain edge-to-edge. */
.home-page .project-card {
    border-radius: 0 !important;
}

@media (max-width: 768px) {
    .navbar {
        min-height: 66px;
        flex-direction: row !important;
        gap: 1rem !important;
    }

    .nav-left {
        flex-direction: row !important;
        flex: 0 0 auto;
    }

    .nav-right {
        flex: 1 1 auto;
        justify-content: flex-start;
        gap: 1rem !important;
        overflow-x: auto;
        overscroll-behavior-inline: contain;
        scrollbar-width: none;
        padding-right: 1.8rem;
        mask-image: linear-gradient(to right, #000 0, #000 calc(100% - 30px), transparent 100%);
        -webkit-mask-image: linear-gradient(to right, #000 0, #000 calc(100% - 30px), transparent 100%);
    }

    .nav-right::-webkit-scrollbar { display: none; }
    .nav-divider { display: none; }

    .nav-link,
    .nav-icon,
    body.dark-mode .nav-link,
    body.dark-mode .nav-icon {
        flex: 0 0 auto;
        font-size: 0.68rem;
    }

    .home-page .hero {
        min-height: calc(100svh - 66px);
        padding: 5rem 0;
    }

    .home-page .hero h2 {
        font-size: clamp(3.35rem, 16vw, 5.2rem);
    }

    .home-page .project-card {
        min-height: 72svh;
        padding-inline: 1.5rem;
    }

    .home-page .project-card h3,
    body.dark-mode.home-page .project-card h3 {
        font-size: clamp(2.3rem, 11vw, 3.8rem);
    }
}

/* One type system across every page. Keep hierarchy in weight and scale only. */
body,
body * {
    font-family: var(--site-font) !important;
    text-transform: none !important;
}

h1, h2, h3, h4, h5, h6 {
    letter-spacing: -0.025em !important;
}

.nav-link,
.nav-icon,
.btn,
.eyebrow,
.section-eyebrow,
.tag,
.rank-chip,
code {
    letter-spacing: 0 !important;
}

/* Remove the former tactical overlay; functional line icons remain. */
.hud-corner,
.hud-status,
.hud-live,
.hud-kicker,
.ag-grid,
#particleCanvas,
.cursor-spot {
    display: none !important;
}

@media (prefers-reduced-motion: reduce) {
    .home-page .hero-content,
    .home-page .hero-logo,
    .home-page .card-bg-image,
    .home-page .project-card .card-icon,
    .home-page .project-card h3,
    .home-page .project-card p {
        transform: none !important;
        opacity: 1 !important;
        filter: none !important;
        transition: none !important;
    }
}