/* ========================================
   Knight Descending — 메인 첫 화면(.hero-kd)과 상세 페이지(knight-descending.html) 전용 스타일
   게임 색(어두운 바탕·진홍·금색)은 이 파일의 kd 요소에만 씁니다. 나머지 사이트 색은 style.css 그대로입니다.
   ======================================== */
:root {
    --kd-bg: #0d0c10;
    --kd-panel: rgba(24, 21, 28, 0.92);
    --kd-line: rgba(217, 164, 65, 0.35);
    --kd-gold: #d9a441;
    --kd-crimson: #a3221a;
    --kd-crimson-hi: #c8352a;
    --kd-text: #ece6dc;
    --kd-sub: #b3aa9c;
}

/* ---------- 버튼·배지 ---------- */
.kd-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 52px;
    padding: 0 28px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 1rem;
    text-decoration: none;
    letter-spacing: 0.01em;
    transition: transform 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

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

.kd-btn-primary {
    background: linear-gradient(180deg, var(--kd-crimson-hi), var(--kd-crimson));
    color: #fff;
    border: 1px solid var(--kd-gold);
    box-shadow: 0 6px 20px rgba(163, 34, 26, 0.45);
}

.kd-btn-primary:hover {
    box-shadow: 0 8px 26px rgba(200, 53, 42, 0.6);
}

.kd-btn-ghost {
    background: rgba(0, 0, 0, 0.35);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.55);
}

.kd-btn-ghost:hover {
    background: rgba(0, 0, 0, 0.55);
}

.kd-steam-badge {
    display: inline-block;
    margin-top: var(--spacing-sm);
    padding: 6px 14px;
    border: 1px solid var(--kd-line);
    border-radius: 999px;
    color: var(--kd-gold);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-decoration: none;
    background: rgba(0, 0, 0, 0.35);
}

a.kd-steam-badge:hover {
    background: rgba(0, 0, 0, 0.6);
}

/* ---------- 메인 첫 화면 ---------- */
.hero-kd {
    background: var(--kd-bg);
}

.hero-kd-bg {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(180deg, rgba(0, 0, 0, 0.25) 0%, rgba(0, 0, 0, 0.45) 55%, rgba(13, 12, 16, 0.95) 100%),
        url("images/knight-descending/hero.jpg") 42% center / cover no-repeat;
    z-index: 0;
}

.hero-kd .hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-kd-eyebrow {
    color: var(--kd-gold);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.25em;
    margin-bottom: var(--spacing-sm);
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.6);
}

.hero-kd-title {
    margin: 0;
    line-height: 0;
}

.hero-kd-logo {
    width: min(560px, 82vw);
    height: auto;
    filter: drop-shadow(0 6px 18px rgba(0, 0, 0, 0.6));
}

.hero-kd-tagline {
    color: #fff;
    font-size: clamp(1.05rem, 2.2vw, 1.4rem);
    font-weight: 500;
    margin: var(--spacing-sm) 0 var(--spacing-md);
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.7);
}

.hero-kd-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    justify-content: center;
}

.hero-kd .scroll-indicator {
    margin-top: var(--spacing-md);
}

/* 첫 화면 2단: 왼쪽 소개, 오른쪽 영상. 영상이 들어가 화면 높이에 고정하지 않고 내용만큼 늘어남 */
.hero.hero-kd {
    height: auto;
    min-height: 100vh;
    padding: calc(var(--navbar-height) + var(--spacing-md)) 0 var(--spacing-md);
}

.hero-kd-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr);
    gap: var(--spacing-lg);
    align-items: center;
    max-width: 1240px;
    margin: 0 auto;
}

.hero-kd-main {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-kd-grid .hero-kd-logo {
    width: min(480px, 100%);
}

.hero-kd-video {
    width: 100%;
}

.kd-video {
    position: relative;
    display: block;
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--kd-line);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.6);
    background: #000;
}

.kd-video img,
.kd-video iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: 0;
    object-fit: cover;
    display: block;
}

a.kd-video img {
    transition: transform 0.4s ease, filter 0.3s ease;
    filter: brightness(0.85);
}

a.kd-video:hover img {
    transform: scale(1.03);
    filter: brightness(1);
}

/* 가운데 재생 버튼(진홍 원 + 흰 삼각형) */
.kd-video-play {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 76px;
    height: 76px;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    background: linear-gradient(180deg, var(--kd-crimson-hi), var(--kd-crimson));
    border: 2px solid var(--kd-gold);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.6);
    transition: transform 0.2s ease;
}

.kd-video-play::after {
    content: "";
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-35%, -50%);
    border-style: solid;
    border-width: 14px 0 14px 24px;
    border-color: transparent transparent transparent #fff;
}

a.kd-video:hover .kd-video-play {
    transform: translate(-50%, -50%) scale(1.08);
}

.hero-kd-video-caption {
    margin-top: var(--spacing-xs);
    color: var(--kd-sub);
    font-size: 0.9rem;
    text-align: center;
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.7);
}

/* 좁은 화면: 한 줄로 쌓고 영상은 소개 아래 */
@media (max-width: 992px) {
    .hero-kd-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .hero-kd-video {
        max-width: 640px;
        margin: 0 auto;
    }
}

/* ---------- 상세 페이지 ---------- */
body.kd-page {
    background: var(--kd-bg);
    color: var(--kd-text);
}

/* 상세 페이지 내비: 로고 · (오른쪽으로 붙은) 홈 링크 · 언어 버튼 */
.kd-page .nav-wrapper {
    gap: var(--spacing-sm);
}

.kd-page .navbar {
    background: rgba(13, 12, 16, 0.86);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(217, 164, 65, 0.18);
}

.kd-page .navbar .nav-link {
    margin-left: auto;
}

.kd-hero {
    position: relative;
    min-height: 92vh;
    display: flex;
    align-items: flex-end;
    padding: calc(var(--navbar-height) + var(--spacing-lg)) 0 var(--spacing-lg);
    overflow: hidden;
}

.kd-hero .hero-kd-bg {
    background:
        linear-gradient(180deg, rgba(0, 0, 0, 0.15) 0%, rgba(0, 0, 0, 0.4) 50%, var(--kd-bg) 100%),
        url("images/knight-descending/hero.jpg") 42% center / cover no-repeat;
}

.kd-hero-inner {
    position: relative;
    z-index: 1;
    max-width: 680px;
}

/* 상세 첫 화면 2단: 왼쪽 소개, 오른쪽 영상 */
.kd-hero .container {
    width: 100%;
}

.kd-hero-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    gap: var(--spacing-lg);
    align-items: end;
}

@media (max-width: 992px) {
    .kd-hero-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .kd-hero-grid .hero-kd-video {
        max-width: 640px;
    }
}

.kd-hero-inner .hero-kd-logo {
    width: min(520px, 86vw);
}

.kd-hero-tagline {
    color: var(--kd-gold);
    font-weight: 700;
    letter-spacing: 0.08em;
    margin-top: var(--spacing-sm);
}

.kd-hero-desc {
    color: #fff;
    font-size: 1.1rem;
    margin: var(--spacing-xs) 0 var(--spacing-md);
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.7);
}

.kd-hero-note {
    color: var(--kd-sub);
    font-size: 0.85rem;
    margin-top: var(--spacing-sm);
}

/* style.css 의 section 은 화면 높이만큼 늘어나므로 상세 페이지 구역은 내용 높이로 되돌립니다 */
.kd-section {
    min-height: 0;
    display: block;
    padding: var(--spacing-lg) 0;
}

.kd-section-title {
    font-size: clamp(1.5rem, 3vw, 2.1rem);
    font-weight: 800;
    color: var(--kd-gold);
    letter-spacing: 0.06em;
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.kd-section-desc {
    text-align: center;
    color: var(--kd-sub);
    margin-bottom: var(--spacing-md);
}

.kd-story {
    max-width: 760px;
    margin: 0 auto;
    font-size: 1.1rem;
    line-height: 1.9;
}

.kd-story p + p {
    margin-top: var(--spacing-sm);
}

.kd-story .kd-story-key {
    color: var(--kd-gold);
    font-weight: 700;
}

.kd-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-sm);
}

.kd-feature {
    background: var(--kd-panel);
    border: 1px solid var(--kd-line);
    border-radius: 12px;
    padding: var(--spacing-md) var(--spacing-sm);
}

.kd-feature h3 {
    color: #fff;
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
}

.kd-feature h3::before {
    content: "◆ ";
    color: var(--kd-crimson-hi);
}

.kd-feature p {
    color: var(--kd-sub);
    font-size: 0.95rem;
}

.kd-depths {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
}

.kd-depth {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--kd-line);
    aspect-ratio: 16 / 9;
}

.kd-depth img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}

.kd-depth:hover img {
    transform: scale(1.04);
}

.kd-depth figcaption {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 28px 14px 10px;
    background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.85));
    color: #fff;
    font-weight: 700;
}

.kd-depth figcaption span {
    display: block;
    color: var(--kd-gold);
    font-size: 0.8rem;
    font-weight: 600;
}

.kd-shots {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
}

.kd-shots a {
    display: block;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--kd-line);
}

.kd-shots img {
    width: 100%;
    height: auto;
    display: block;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.kd-shots a:hover img {
    transform: scale(1.04);
}

.kd-info {
    max-width: 820px;
    margin: 0 auto;
    background: var(--kd-panel);
    border: 1px solid var(--kd-line);
    border-radius: 12px;
    padding: var(--spacing-md);
}

.kd-info dl {
    display: grid;
    grid-template-columns: 160px 1fr;
    gap: 14px var(--spacing-md);
}

.kd-info dt {
    color: var(--kd-gold);
    font-weight: 700;
}

.kd-info dd {
    color: var(--kd-text);
}

.kd-cta {
    text-align: center;
}

.kd-cta h2 {
    color: #fff;
    font-size: clamp(1.4rem, 3vw, 2rem);
    margin-bottom: var(--spacing-md);
}

.kd-cta p {
    color: var(--kd-sub);
    margin-top: var(--spacing-md);
}

.kd-cta a.kd-mail {
    color: var(--kd-gold);
}

.kd-page .footer {
    background: #060508;
    color: var(--kd-sub);
}

/* ---------- 이미지 뷰어(상세 페이지, kd.js) ---------- */
.kd-depth {
    cursor: zoom-in;
}

.kd-shots a {
    cursor: zoom-in;
}

.kd-viewer {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 64px 88px;
    background: rgba(5, 4, 8, 0.94);
}

.kd-viewer[hidden] {
    display: none;
}

.kd-viewer-figure {
    margin: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.kd-viewer-figure img {
    max-width: 100%;
    max-height: calc(100% - 40px);
    object-fit: contain;
    border-radius: 6px;
    border: 1px solid var(--kd-line);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6);
    user-select: none;
}

.kd-viewer-figure figcaption {
    color: var(--kd-gold);
    font-weight: 700;
    text-align: center;
}

.kd-viewer-btn {
    position: absolute;
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid var(--kd-line);
    background: rgba(0, 0, 0, 0.55);
    color: #fff;
    font-size: 2rem;
    line-height: 1;
    cursor: pointer;
    transition: background 0.2s ease;
}

.kd-viewer-btn:hover,
.kd-viewer-btn:focus-visible {
    background: rgba(163, 34, 26, 0.85);
    outline: none;
}

.kd-viewer-btn[hidden] {
    display: none;
}

.kd-viewer-close {
    top: 16px;
    right: 16px;
}

.kd-viewer-prev,
.kd-viewer-next {
    top: 50%;
    transform: translateY(-50%);
}

.kd-viewer-prev {
    left: 20px;
}

.kd-viewer-next {
    right: 20px;
}

.kd-viewer-count {
    position: absolute;
    left: 50%;
    bottom: 22px;
    transform: translateX(-50%);
    color: var(--kd-sub);
    font-size: 0.9rem;
    letter-spacing: 0.05em;
}

.kd-viewer-count[hidden] {
    display: none;
}

/* 좁은 화면: 그림을 넓게 쓰고 넘기기 버튼은 아래로 */
@media (max-width: 768px) {
    .kd-viewer {
        padding: 76px 8px 92px;
    }

    .kd-viewer-prev,
    .kd-viewer-next {
        top: auto;
        bottom: 20px;
        transform: none;
    }

    .kd-viewer-prev {
        left: 16px;
    }

    .kd-viewer-next {
        right: 16px;
    }

    .kd-viewer-count {
        bottom: 36px;
    }
}

@media (max-width: 768px) {
    .kd-depths,
    .kd-shots {
        grid-template-columns: 1fr 1fr;
    }

    .kd-info dl {
        grid-template-columns: 1fr;
        gap: 4px;
    }

    .kd-info dd {
        margin-bottom: var(--spacing-sm);
    }

    .kd-hero {
        min-height: 88vh;
    }
}

@media (max-width: 480px) {
    /* 출시 예정 배지(스토어 3곳)가 한 줄에 들어가도록 */
    .kd-steam-badge {
        font-size: 0.74rem;
        letter-spacing: 0;
        padding: 6px 12px;
        border-radius: 16px;
        text-align: center;
    }

    .kd-depths,
    .kd-shots {
        grid-template-columns: 1fr;
    }

    .kd-btn {
        width: 100%;
    }
}