/* ──────────────────────────────────────────────
   FONT
   ────────────────────────────────────────────── */
@font-face {
    font-family: "Pretendard";
    src: url("./assets/fonts/Pretendard-Regular.woff2") format("woff2");
    font-weight: 400;
    font-display: swap;
}
@font-face {
    font-family: "Pretendard";
    src: url("./assets/fonts/Pretendard-Medium.woff2") format("woff2");
    font-weight: 500;
    font-display: swap;
}
@font-face {
    font-family: "Pretendard";
    src: url("./assets/fonts/Pretendard-SemiBold.woff2") format("woff2");
    font-weight: 600;
    font-display: swap;
}
@font-face {
    font-family: "Pretendard";
    src: url("./assets/fonts/Pretendard-Bold.woff2") format("woff2");
    font-weight: 700;
    font-display: swap;
}
@font-face {
    font-family: "Pretendard";
    src: url("./assets/fonts/Pretendard-ExtraBold.woff2") format("woff2");
    font-weight: 800;
    font-display: swap;
}

/* ──────────────────────────────────────────────
   THEME TOKENS
   ────────────────────────────────────────────── */
:root {
    --bg: #fafaf7;
    --panel: #ffffff;
    --panel-2: #f3f4ef;
    --ink: #0e1410;
    --ink-soft: #1c241f;
    --muted: #5b6660;
    --muted-2: #8a948e;
    --line: #e3e6e0;
    --line-strong: #cdd2cb;
    --accent: #0d8045;
    --accent-strong: #086030;
    --accent-soft: rgba(13, 128, 69, 0.1);
    --accent-glow: rgba(13, 128, 69, 0.32);
    --amber: #c98a1a;
    --amber-soft: rgba(201, 138, 26, 0.12);
    --shadow-sm: 0 1px 2px rgba(14, 20, 16, 0.06);
    --shadow-md: 0 8px 28px rgba(14, 20, 16, 0.08);
    --shadow-lg: 0 32px 80px rgba(14, 20, 16, 0.16);
    --radius: 14px;
    --radius-sm: 10px;
    --radius-lg: 22px;
}

[data-theme="dark"] {
    --bg: #0a0f0c;
    --panel: #131a16;
    --panel-2: #1a221d;
    --ink: #e8ede9;
    --ink-soft: #c8d0cc;
    --muted: #8b948e;
    --muted-2: #5e6a64;
    --line: #1f2a23;
    --line-strong: #2a3830;
    --accent: #36c47a;
    --accent-strong: #62d997;
    --accent-soft: rgba(54, 196, 122, 0.12);
    --accent-glow: rgba(54, 196, 122, 0.4);
    --amber: #f1b047;
    --amber-soft: rgba(241, 176, 71, 0.14);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.45);
    --shadow-lg: 0 32px 80px rgba(0, 0, 0, 0.55);
}

@media (prefers-color-scheme: dark) {
    :root[data-theme="auto"] {
        --bg: #0a0f0c;
        --panel: #131a16;
        --panel-2: #1a221d;
        --ink: #e8ede9;
        --ink-soft: #c8d0cc;
        --muted: #8b948e;
        --muted-2: #5e6a64;
        --line: #1f2a23;
        --line-strong: #2a3830;
        --accent: #36c47a;
        --accent-strong: #62d997;
        --accent-soft: rgba(54, 196, 122, 0.12);
        --accent-glow: rgba(54, 196, 122, 0.4);
        --amber: #f1b047;
        --amber-soft: rgba(241, 176, 71, 0.14);
        --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
        --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.45);
        --shadow-lg: 0 32px 80px rgba(0, 0, 0, 0.55);
    }
}

/* ──────────────────────────────────────────────
   RESET & BASE
   ────────────────────────────────────────────── */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    background: var(--bg);
    color-scheme: light dark;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    color: var(--ink);
    font-family:
        "Pretendard",
        -apple-system,
        "Apple SD Gothic Neo",
        "Noto Sans KR",
        system-ui,
        sans-serif;
    font-feature-settings: "ss01", "tnum";
    line-height: 1.55;
    background: var(--bg);
    overflow-x: hidden;
}

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

a {
    color: var(--accent-strong);
    text-decoration: none;
    text-underline-offset: 3px;
    transition: color 0.15s ease;
}
a:hover {
    color: var(--accent);
    text-decoration: underline;
}

[data-theme="dark"] a,
:root[data-theme="auto"] a {
    color: var(--accent);
}
[data-theme="dark"] a:hover {
    color: var(--accent-strong);
}

button {
    font: inherit;
    color: inherit;
    border: 0;
    background: none;
    cursor: pointer;
}

code {
    font-family: "D2Coding", "JetBrains Mono", ui-monospace, SFMono-Regular,
        Menlo, monospace;
    font-size: 0.92em;
    background: var(--panel-2);
    padding: 0.1em 0.4em;
    border-radius: 6px;
    color: var(--ink-soft);
}

.skip-link {
    position: absolute;
    top: -100px;
    left: 16px;
    padding: 8px 14px;
    background: var(--ink);
    color: var(--bg);
    border-radius: 8px;
    z-index: 100;
}
.skip-link:focus {
    top: 16px;
}

/* ──────────────────────────────────────────────
   TOPBAR
   ────────────────────────────────────────────── */
.topbar {
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 14px clamp(20px, 4vw, 56px);
    background: color-mix(in srgb, var(--bg) 78%, transparent);
    backdrop-filter: saturate(160%) blur(14px);
    -webkit-backdrop-filter: saturate(160%) blur(14px);
    border-bottom: 1px solid color-mix(in srgb, var(--line) 60%, transparent);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--ink);
    font-weight: 700;
    text-decoration: none;
}
.brand:hover {
    color: var(--ink);
    text-decoration: none;
}
.brand-logo {
    width: 32px;
    height: 32px;
}
.brand-name {
    font-size: 1.05rem;
    letter-spacing: -0.02em;
}
.brand-tag {
    padding: 3px 8px;
    background: var(--accent-soft);
    color: var(--accent-strong);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    border-radius: 999px;
}
[data-theme="dark"] .brand-tag,
:root[data-theme="auto"] .brand-tag {
    color: var(--accent);
}

.topnav {
    display: flex;
    gap: 22px;
    margin-left: auto;
    margin-right: 8px;
}
.topnav a {
    color: var(--muted);
    font-weight: 500;
    font-size: 0.94rem;
}
.topnav a:hover {
    color: var(--ink);
    text-decoration: none;
}

.topactions {
    display: flex;
    gap: 8px;
}

.icon-btn {
    display: inline-grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: var(--panel);
    color: var(--ink-soft);
    transition:
        border-color 0.15s ease,
        background 0.15s ease,
        transform 0.15s ease;
}
.icon-btn:hover {
    border-color: var(--accent);
    color: var(--accent-strong);
    transform: translateY(-1px);
}
.icon-btn svg {
    width: 18px;
    height: 18px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.7;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.icon-btn .icon-moon {
    display: none;
}
[data-theme="dark"] .icon-btn .icon-moon,
:root[data-theme="auto"] .icon-btn .icon-moon {
    display: block;
}
[data-theme="dark"] .icon-btn .icon-sun,
:root[data-theme="auto"] .icon-btn .icon-sun {
    display: none;
}

@media (max-width: 720px) {
    .topnav {
        display: none;
    }
}

/* ──────────────────────────────────────────────
   HERO
   ────────────────────────────────────────────── */
.hero {
    position: relative;
    padding: clamp(48px, 8vw, 96px) clamp(20px, 5vw, 56px) clamp(60px, 9vw, 120px);
    overflow: hidden;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(var(--line) 1px, transparent 1px),
        linear-gradient(90deg, var(--line) 1px, transparent 1px);
    background-size: 56px 56px;
    background-position: -1px -1px;
    opacity: 0.35;
    mask-image: radial-gradient(
        ellipse at 50% 30%,
        rgba(0, 0, 0, 0.5),
        transparent 70%
    );
    -webkit-mask-image: radial-gradient(
        ellipse at 50% 30%,
        rgba(0, 0, 0, 0.5),
        transparent 70%
    );
    pointer-events: none;
    z-index: 0;
}

.hero-inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: clamp(36px, 5vw, 80px);
    align-items: center;
    max-width: 1240px;
    margin: 0 auto;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin: 0 0 24px;
    padding: 6px 12px;
    background: var(--accent-soft);
    color: var(--accent-strong);
    border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 600;
}
[data-theme="dark"] .eyebrow,
:root[data-theme="auto"] .eyebrow {
    color: var(--accent);
}
.dot {
    display: inline-block;
    width: 7px;
    height: 7px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 0 4px var(--accent-soft);
}

h1 {
    margin: 0 0 22px;
    font-size: clamp(2.6rem, 6vw, 4.8rem);
    font-weight: 800;
    line-height: 1.06;
    letter-spacing: -0.035em;
    color: var(--ink);
}

.grad {
    background: linear-gradient(120deg, var(--accent), var(--accent-strong) 60%, #1ba75b);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}
[data-theme="dark"] .grad,
:root[data-theme="auto"] .grad {
    background: linear-gradient(120deg, #5be29b, var(--accent), #2db876);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.lede {
    margin: 0 0 32px;
    max-width: 540px;
    color: var(--muted);
    font-size: clamp(1.05rem, 1.6vw, 1.18rem);
    line-height: 1.72;
}
.lede strong {
    color: var(--ink);
    font-weight: 600;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 14px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 22px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.98rem;
    letter-spacing: -0.005em;
    transition:
        transform 0.15s ease,
        background 0.15s ease,
        box-shadow 0.2s ease,
        border-color 0.15s ease;
    border: 1px solid transparent;
    text-decoration: none;
}
.btn:hover {
    text-decoration: none;
    transform: translateY(-1px);
}
.btn svg {
    width: 18px;
    height: 18px;
    stroke: currentColor;
    stroke-width: 1.7;
    fill: none;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.btn-primary {
    background: var(--ink);
    color: var(--bg);
    box-shadow:
        0 1px 0 0 rgba(255, 255, 255, 0.12) inset,
        0 8px 24px -8px var(--accent-glow);
}
.btn-primary:hover {
    background: var(--accent-strong);
    color: #fff;
}
[data-theme="dark"] .btn-primary,
:root[data-theme="auto"] .btn-primary {
    background: var(--accent);
    color: #06120a;
}
[data-theme="dark"] .btn-primary:hover,
:root[data-theme="auto"] .btn-primary:hover {
    background: var(--accent-strong);
}

.btn-ghost {
    background: var(--panel);
    color: var(--ink-soft);
    border-color: var(--line);
}
.btn-ghost:hover {
    border-color: var(--ink-soft);
    color: var(--ink);
}

.btn-lg {
    padding: 16px 28px;
    font-size: 1.05rem;
    border-radius: 14px;
}

.hero-meta {
    margin: 0 0 36px;
    color: var(--muted-2);
    font-size: 0.86rem;
}

.hero-trust {
    display: flex;
    flex-wrap: wrap;
    gap: 28px;
    margin: 0;
    padding: 24px 0 0;
    list-style: none;
    border-top: 1px dashed var(--line);
}
.hero-trust li {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.hero-trust strong {
    color: var(--ink);
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}
.hero-trust span {
    color: var(--muted);
    font-size: 0.84rem;
}

.hero-shot {
    position: relative;
    margin: 0;
}

.shot-frame {
    position: relative;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--panel);
    box-shadow: var(--shadow-lg);
    transform: perspective(1400px) rotateY(-3deg) rotateX(2deg);
    transition: transform 0.4s ease;
}
.shot-frame:hover {
    transform: perspective(1400px) rotateY(0deg) rotateX(0deg);
}
.shot-dots {
    display: flex;
    gap: 6px;
    padding: 10px 14px;
    background: var(--panel-2);
    border-bottom: 1px solid var(--line);
}
.shot-dots span {
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background: #ff5f57;
}
.shot-dots span:nth-child(2) {
    background: #febc2e;
}
.shot-dots span:nth-child(3) {
    background: #28c840;
}
.shot-frame img {
    width: 100%;
    display: block;
    background: var(--bg);
}
.shot-glow {
    position: absolute;
    inset: -40px;
    z-index: -1;
    background: radial-gradient(
        ellipse at 50% 50%,
        var(--accent-glow),
        transparent 65%
    );
    filter: blur(40px);
    opacity: 0.7;
    pointer-events: none;
}

@media (max-width: 980px) {
    .hero-inner {
        grid-template-columns: 1fr;
    }
    .shot-frame {
        transform: none;
    }
}

/* ──────────────────────────────────────────────
   SECTION HEAD
   ────────────────────────────────────────────── */
.section-head {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 56px;
}
.section-eyebrow {
    margin: 0 0 12px;
    color: var(--accent-strong);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}
[data-theme="dark"] .section-eyebrow,
:root[data-theme="auto"] .section-eyebrow {
    color: var(--accent);
}
.section-head h2 {
    margin: 0 0 16px;
    font-size: clamp(1.8rem, 3.6vw, 2.6rem);
    font-weight: 800;
    line-height: 1.18;
    letter-spacing: -0.025em;
    color: var(--ink);
}
.section-lede {
    margin: 0;
    color: var(--muted);
    font-size: 1.04rem;
    line-height: 1.7;
}

/* ──────────────────────────────────────────────
   FEATURES
   ────────────────────────────────────────────── */
.features {
    padding: clamp(60px, 8vw, 120px) clamp(20px, 5vw, 56px);
    background: linear-gradient(180deg, var(--bg), var(--panel-2) 100%);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
    max-width: 1180px;
    margin: 0 auto;
}

.feature-card {
    position: relative;
    padding: 28px 26px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    transition:
        border-color 0.2s ease,
        transform 0.2s ease,
        box-shadow 0.2s ease;
}
.feature-card:hover {
    border-color: var(--accent);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}
.feature-card.highlight {
    background: linear-gradient(
        160deg,
        var(--accent-soft),
        var(--panel) 70%
    );
    border-color: color-mix(in srgb, var(--accent) 30%, var(--line));
}

.feature-icon {
    display: grid;
    place-items: center;
    width: 46px;
    height: 46px;
    margin-bottom: 18px;
    border-radius: 12px;
    background: var(--accent-soft);
    color: var(--accent-strong);
}
[data-theme="dark"] .feature-icon,
:root[data-theme="auto"] .feature-icon {
    color: var(--accent);
}
.feature-icon svg {
    width: 24px;
    height: 24px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.7;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.feature-card h3 {
    margin: 0 0 8px;
    font-size: 1.08rem;
    font-weight: 700;
    color: var(--ink);
    letter-spacing: -0.015em;
}
.feature-card p {
    margin: 0;
    color: var(--muted);
    font-size: 0.94rem;
    line-height: 1.65;
}

/* ──────────────────────────────────────────────
   SHOWCASE
   ────────────────────────────────────────────── */
.showcase {
    padding: 0 clamp(20px, 5vw, 56px) clamp(40px, 7vw, 96px);
    background: var(--panel-2);
}
.showcase-shot {
    max-width: 1180px;
    margin: 0 auto;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    background: var(--panel);
}
.showcase-shot img {
    width: 100%;
    display: block;
}

/* ──────────────────────────────────────────────
   DOWNLOADS
   ────────────────────────────────────────────── */
.downloads {
    padding: clamp(72px, 9vw, 120px) clamp(20px, 5vw, 56px);
}

.dl-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    max-width: 700px;
    margin: 0 auto 28px;
    padding: 6px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 14px;
}
.dl-tab {
    flex: 1;
    min-width: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 14px;
    color: var(--muted);
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: 10px;
    transition:
        background 0.15s ease,
        color 0.15s ease;
}
.dl-tab:hover {
    color: var(--ink);
}
.dl-tab svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}
.dl-tab[aria-selected="true"] {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 4px 18px -8px var(--accent-glow);
}
[data-theme="dark"] .dl-tab[aria-selected="true"],
:root[data-theme="auto"] .dl-tab[aria-selected="true"] {
    color: #06120a;
}

.dl-panels {
    max-width: 980px;
    margin: 0 auto;
}

.dl-panel {
    padding: 24px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
}
.dl-panel[hidden] {
    display: none;
}

.dl-panel-grid {
    display: grid;
    gap: 12px;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    margin-bottom: 18px;
}

.dl-card {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 18px 18px 16px;
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: 12px;
    color: var(--ink);
    text-decoration: none;
    transition:
        border-color 0.15s ease,
        background 0.15s ease,
        transform 0.15s ease;
}
.dl-card:hover {
    border-color: var(--accent);
    background: var(--panel);
    transform: translateY(-2px);
    text-decoration: none;
    color: var(--ink);
}

.dl-card-head {
    display: flex;
    align-items: center;
    gap: 10px;
}
.dl-card-label {
    font-weight: 700;
    font-size: 1rem;
    color: var(--ink);
}
.dl-card-tag {
    padding: 2px 8px;
    background: var(--accent-soft);
    color: var(--accent-strong);
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 700;
}
[data-theme="dark"] .dl-card-tag,
:root[data-theme="auto"] .dl-card-tag {
    color: var(--accent);
}

.dl-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--muted);
    font-size: 0.86rem;
}
.dl-card-fmt {
    font-family: "D2Coding", ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.78rem;
    padding: 2px 8px;
    background: var(--panel-2);
    border-radius: 6px;
    color: var(--ink-soft);
}

.dl-extra {
    padding-top: 16px;
    border-top: 1px dashed var(--line);
}
.dl-extra p {
    margin: 0 0 8px;
    color: var(--muted);
    font-size: 0.92rem;
}

.dl-code {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 14px;
    background: var(--panel-2);
    border: 1px solid var(--line);
    border-radius: 10px;
    font-family: "D2Coding", ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.92rem;
    color: var(--ink-soft);
}
.copy-btn {
    padding: 4px 10px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 6px;
    font-size: 0.78rem;
    color: var(--muted);
    transition: all 0.15s ease;
}
.copy-btn:hover {
    color: var(--accent-strong);
    border-color: var(--accent);
}
.copy-btn.copied {
    color: #fff;
    background: var(--accent);
    border-color: var(--accent);
}

.dl-warn {
    margin: 16px 0 0;
    padding: 12px 14px;
    background: var(--amber-soft);
    border: 1px solid color-mix(in srgb, var(--amber) 35%, transparent);
    border-radius: 10px;
    color: var(--ink-soft);
    font-size: 0.88rem;
    line-height: 1.65;
}
.dl-warn strong {
    color: var(--ink);
}

.dl-foot {
    margin: 24px auto 0;
    max-width: 700px;
    text-align: center;
    color: var(--muted);
    font-size: 0.9rem;
}

/* ──────────────────────────────────────────────
   INSTALL
   ────────────────────────────────────────────── */
.install {
    padding: clamp(60px, 8vw, 120px) clamp(20px, 5vw, 56px);
    background: linear-gradient(180deg, var(--panel-2), var(--bg));
}

.install-grid {
    display: grid;
    gap: 18px;
    max-width: 1180px;
    margin: 0 auto;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.install-card {
    padding: 28px 26px 26px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
}
.install-card header {
    margin-bottom: 18px;
    padding-bottom: 14px;
    border-bottom: 1px dashed var(--line);
}
.install-os {
    display: inline-block;
    padding: 4px 10px;
    background: var(--accent-soft);
    color: var(--accent-strong);
    border-radius: 999px;
    font-size: 0.74rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    margin-bottom: 10px;
}
[data-theme="dark"] .install-os,
:root[data-theme="auto"] .install-os {
    color: var(--accent);
}
.install-card h3 {
    margin: 0;
    font-size: 1.12rem;
    font-weight: 700;
    color: var(--ink);
}

.install-card ol {
    margin: 0;
    padding-left: 22px;
    color: var(--muted);
    font-size: 0.94rem;
    line-height: 1.7;
}
.install-card ol li {
    margin-bottom: 8px;
}
.install-card ol li::marker {
    color: var(--accent);
    font-weight: 700;
}
.install-card strong {
    color: var(--ink);
    font-weight: 600;
}

.install-tabs {
    display: flex;
    gap: 4px;
    padding: 4px;
    margin-bottom: 12px;
    background: var(--panel-2);
    border-radius: 10px;
}
.install-tab {
    flex: 1;
    padding: 8px 10px;
    color: var(--muted);
    font-weight: 600;
    font-size: 0.85rem;
    border-radius: 7px;
    transition: all 0.15s ease;
}
.install-tab:hover {
    color: var(--ink);
}
.install-tab.is-active {
    background: var(--panel);
    color: var(--ink);
    box-shadow: var(--shadow-sm);
}
.install-card pre {
    margin: 0;
    padding: 14px 16px;
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: 10px;
    color: var(--ink-soft);
    font-family: "D2Coding", ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.88rem;
    line-height: 1.6;
    overflow-x: auto;
    display: none;
}
.install-card pre.is-active {
    display: block;
}
.install-card pre code {
    background: none;
    padding: 0;
    color: inherit;
}

/* ──────────────────────────────────────────────
   CTA
   ────────────────────────────────────────────── */
.cta {
    padding: clamp(60px, 9vw, 110px) clamp(20px, 5vw, 56px);
    text-align: center;
}
.cta-inner {
    max-width: 720px;
    margin: 0 auto;
    padding: 56px 32px;
    background: var(--ink);
    color: var(--bg);
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
}
.cta-inner::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(
        ellipse at 80% 0%,
        var(--accent-glow),
        transparent 60%
    );
    pointer-events: none;
}
.cta-inner h2 {
    margin: 0 0 12px;
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 800;
    letter-spacing: -0.025em;
    position: relative;
}
.cta-inner p {
    margin: 0 0 28px;
    color: color-mix(in srgb, var(--bg) 70%, transparent);
    position: relative;
}
.cta-inner .btn-primary {
    background: var(--accent);
    color: #06120a;
    position: relative;
}
.cta-inner .btn-primary:hover {
    background: var(--accent-strong);
}

/* ──────────────────────────────────────────────
   FOOTER
   ────────────────────────────────────────────── */
.site-foot {
    padding: 56px clamp(20px, 5vw, 56px) 36px;
    background: var(--panel-2);
    border-top: 1px solid var(--line);
}
.foot-inner {
    display: grid;
    grid-template-columns: minmax(240px, 1fr) minmax(0, 2fr);
    gap: 36px;
    max-width: 1180px;
    margin: 0 auto 32px;
}
.foot-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}
.foot-title {
    margin: 0;
    font-weight: 700;
    color: var(--ink);
    letter-spacing: -0.015em;
}
.foot-sub {
    margin: 2px 0 0;
    color: var(--muted);
    font-size: 0.86rem;
}

.foot-cols {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
}
.foot-cols h4 {
    margin: 0 0 12px;
    color: var(--ink);
    font-size: 0.84rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.foot-cols a,
.foot-cols p {
    display: block;
    margin: 0 0 8px;
    color: var(--muted);
    font-size: 0.92rem;
    line-height: 1.6;
}
.foot-cols a:hover {
    color: var(--accent-strong);
    text-decoration: none;
}
[data-theme="dark"] .foot-cols a:hover,
:root[data-theme="auto"] .foot-cols a:hover {
    color: var(--accent);
}

.foot-copy {
    max-width: 1180px;
    margin: 0 auto;
    padding-top: 24px;
    border-top: 1px dashed var(--line);
    color: var(--muted-2);
    font-size: 0.82rem;
    text-align: center;
}

@media (max-width: 980px) {
    .foot-cols {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 760px) {
    .foot-inner {
        grid-template-columns: 1fr;
    }
}
@media (max-width: 480px) {
    .foot-cols {
        grid-template-columns: 1fr;
    }
    .hero-cta .btn {
        width: 100%;
        justify-content: center;
    }
    .hero-trust {
        gap: 18px;
    }
}

/* ──────────────────────────────────────────────
   MOTION
   ────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
}

@keyframes fade-up {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
.hero-copy > * {
    animation: fade-up 0.6s ease-out backwards;
}
.hero-copy > *:nth-child(2) {
    animation-delay: 0.1s;
}
.hero-copy > *:nth-child(3) {
    animation-delay: 0.18s;
}
.hero-copy > *:nth-child(4) {
    animation-delay: 0.25s;
}
.hero-copy > *:nth-child(5) {
    animation-delay: 0.32s;
}
.hero-copy > *:nth-child(6) {
    animation-delay: 0.4s;
}
.hero-shot {
    animation: fade-up 0.8s ease-out 0.2s backwards;
}

/* ──────────────────────────────────────────────
   DL CARD STATS
   ────────────────────────────────────────────── */
.dl-card-stats {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 4px;
    padding-top: 10px;
    border-top: 1px dashed var(--line);
    color: var(--muted-2);
    font-size: 0.78rem;
    font-family: "D2Coding", ui-monospace, SFMono-Regular, Menlo, monospace;
}
.dl-card-stats .dl-size {
    color: var(--ink-soft);
}

/* ──────────────────────────────────────────────
   INSTALL — Windows wide card with numbered steps
   ────────────────────────────────────────────── */
.install-card-wide {
    grid-column: 1 / -1;
    padding: 32px 30px;
    background: linear-gradient(
        180deg,
        var(--panel) 0%,
        var(--panel-2) 100%
    );
    border: 1px solid color-mix(in srgb, var(--accent) 20%, var(--line));
    box-shadow: var(--shadow-md);
}
.install-card-wide header {
    border-bottom: 1px solid var(--line);
    margin-bottom: 24px;
    padding-bottom: 18px;
}
.install-card-wide h3 {
    font-size: 1.4rem;
    margin-bottom: 6px;
}
.install-sub {
    margin: 0;
    color: var(--muted);
    font-size: 0.95rem;
    line-height: 1.65;
}

.install-steps {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 16px;
}
.install-steps li {
    display: grid;
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 18px;
    padding: 18px 18px 18px 14px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 12px;
    transition:
        border-color 0.2s ease,
        transform 0.2s ease;
}
.install-steps li:hover {
    border-color: var(--accent);
    transform: translateY(-1px);
}
.step-num {
    display: grid;
    place-items: center;
    width: 36px;
    height: 36px;
    background: var(--accent);
    color: #fff;
    font-weight: 800;
    font-size: 1.05rem;
    border-radius: 50%;
    box-shadow: 0 4px 14px -4px var(--accent-glow);
}
[data-theme="dark"] .step-num,
:root[data-theme="auto"] .step-num {
    color: #06120a;
}
.install-steps li > div h4 {
    margin: 4px 0 6px;
    font-size: 1rem;
    font-weight: 700;
    color: var(--ink);
    letter-spacing: -0.01em;
}
.install-steps li > div p {
    margin: 0;
    color: var(--muted);
    font-size: 0.92rem;
    line-height: 1.65;
}
.install-steps strong {
    color: var(--ink);
    font-weight: 600;
}

.install-tip {
    margin-top: 22px;
    padding: 14px 16px;
    background: var(--accent-soft);
    border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
    border-radius: 10px;
    color: var(--ink-soft);
    font-size: 0.9rem;
    line-height: 1.7;
}
.install-tip strong {
    color: var(--accent-strong);
    margin-right: 6px;
}
[data-theme="dark"] .install-tip strong,
:root[data-theme="auto"] .install-tip strong {
    color: var(--accent);
}

/* dl-warn (이전엔 .dl-warn p 스타일이었음 — 이제 div로) */
.dl-warn {
    margin: 16px 0 0;
    padding: 14px 16px;
    background: var(--amber-soft);
    border: 1px solid color-mix(in srgb, var(--amber) 35%, transparent);
    border-radius: 10px;
    color: var(--ink-soft);
    font-size: 0.9rem;
    line-height: 1.7;
}
.dl-warn strong {
    color: var(--ink);
    margin-right: 6px;
}

/* ──────────────────────────────────────────────
   VERIFY (SHA-256)
   ────────────────────────────────────────────── */
.verify {
    padding: clamp(60px, 8vw, 110px) clamp(20px, 5vw, 56px);
    background: var(--bg);
}
.verify-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
    gap: 16px;
    max-width: 1180px;
    margin: 0 auto 24px;
}
.verify-card {
    padding: 22px 22px 20px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    transition: border-color 0.15s ease;
}
.verify-card:hover {
    border-color: color-mix(in srgb, var(--accent) 35%, var(--line));
}
.verify-card h3 {
    margin: 0 0 4px;
    font-size: 1.04rem;
    font-weight: 700;
    color: var(--ink);
    letter-spacing: -0.01em;
}
.verify-sub,
.verify-label {
    margin: 12px 0 6px;
    color: var(--muted);
    font-size: 0.85rem;
}
.verify-cmd {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 12px;
    background: var(--panel-2);
    border: 1px solid var(--line);
    border-radius: 8px;
    font-family: "D2Coding", ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.82rem;
    color: var(--ink-soft);
    overflow-x: auto;
}
.verify-cmd > span {
    white-space: nowrap;
}
.verify-hash {
    display: block;
    padding: 10px 12px;
    background: var(--panel-2);
    border: 1px solid var(--line);
    border-radius: 8px;
    font-family: "D2Coding", ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.78rem;
    color: var(--ink-soft);
    word-break: break-all;
    line-height: 1.5;
}
.verify-foot {
    max-width: 1180px;
    margin: 0 auto;
    text-align: center;
    color: var(--muted);
    font-size: 0.9rem;
}

/* ──────────────────────────────────────────────
   WHAT'S NEW
   ────────────────────────────────────────────── */
.whatsnew {
    padding: clamp(60px, 8vw, 110px) clamp(20px, 5vw, 56px);
    background: linear-gradient(180deg, var(--bg), var(--panel-2));
}
.release-card {
    max-width: 820px;
    margin: 0 auto;
    padding: 32px 32px 28px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}
.release-card-head {
    margin-bottom: 22px;
    padding-bottom: 16px;
    border-bottom: 1px dashed var(--line);
}
.release-card-head h3 {
    margin: 0 0 6px;
    font-size: 1.32rem;
    font-weight: 700;
    color: var(--ink);
    letter-spacing: -0.02em;
}
.release-meta {
    margin: 0;
    color: var(--muted);
    font-size: 0.88rem;
}
.release-body {
    color: var(--ink-soft);
    font-size: 0.95rem;
    line-height: 1.78;
}
.release-body h2,
.release-body h3 {
    margin: 24px 0 10px;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--ink);
}
.release-body ul {
    margin: 8px 0;
    padding-left: 22px;
}
.release-body li {
    margin-bottom: 6px;
}
.release-body code {
    font-size: 0.88em;
}
.release-body p {
    margin: 8px 0;
}
.release-body a {
    color: var(--accent-strong);
    text-decoration: underline;
    text-decoration-color: color-mix(in srgb, var(--accent) 35%, transparent);
}
[data-theme="dark"] .release-body a,
:root[data-theme="auto"] .release-body a {
    color: var(--accent);
}

/* ──────────────────────────────────────────────
   SYSTEM REQUIREMENTS
   ────────────────────────────────────────────── */
.sysreq {
    padding: clamp(60px, 8vw, 110px) clamp(20px, 5vw, 56px);
}
.sysreq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
    max-width: 1180px;
    margin: 0 auto;
}
.sysreq-card {
    padding: 26px 24px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
}
.sysreq-card h3 {
    margin: 0 0 16px;
    padding-bottom: 12px;
    border-bottom: 1px dashed var(--line);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--ink);
}
.sysreq-card dl {
    margin: 0;
    display: grid;
    grid-template-columns: 88px minmax(0, 1fr);
    gap: 10px 16px;
}
.sysreq-card dt {
    color: var(--muted);
    font-size: 0.85rem;
    font-weight: 600;
}
.sysreq-card dd {
    margin: 0;
    color: var(--ink-soft);
    font-size: 0.9rem;
    line-height: 1.55;
}

/* ──────────────────────────────────────────────
   FAQ
   ────────────────────────────────────────────── */
.faq {
    padding: clamp(60px, 8vw, 110px) clamp(20px, 5vw, 56px);
    background: linear-gradient(180deg, var(--bg), var(--panel-2));
}
.faq-list {
    max-width: 820px;
    margin: 0 auto;
    display: grid;
    gap: 10px;
}
.faq-item {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    transition: border-color 0.15s ease;
}
.faq-item[open] {
    border-color: color-mix(in srgb, var(--accent) 30%, var(--line));
}
.faq-item summary {
    list-style: none;
    cursor: pointer;
    padding: 18px 22px;
    font-weight: 600;
    color: var(--ink);
    font-size: 0.98rem;
    line-height: 1.5;
    position: relative;
    padding-right: 48px;
    transition: color 0.15s ease;
}
.faq-item summary::-webkit-details-marker {
    display: none;
}
.faq-item summary::after {
    content: "+";
    position: absolute;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    width: 26px;
    height: 26px;
    display: grid;
    place-items: center;
    background: var(--panel-2);
    color: var(--muted);
    border-radius: 50%;
    font-size: 1.15rem;
    font-weight: 700;
    transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
}
.faq-item[open] summary::after {
    content: "−";
    background: var(--accent);
    color: #fff;
}
[data-theme="dark"] .faq-item[open] summary::after,
:root[data-theme="auto"] .faq-item[open] summary::after {
    color: #06120a;
}
.faq-item summary:hover {
    color: var(--accent-strong);
}
[data-theme="dark"] .faq-item summary:hover,
:root[data-theme="auto"] .faq-item summary:hover {
    color: var(--accent);
}
.faq-item p {
    margin: 0;
    padding: 0 22px 20px;
    color: var(--muted);
    font-size: 0.93rem;
    line-height: 1.75;
}
.faq-item p a {
    color: var(--accent-strong);
}
[data-theme="dark"] .faq-item p a,
:root[data-theme="auto"] .faq-item p a {
    color: var(--accent);
}