body.landing { background: radial-gradient(ellipse at top, #3a2a1c 0%, #1a1410 65%); overflow-x: hidden; }
.landing-wrap { min-height: 100vh; display: grid; grid-template-rows: 1fr auto auto; justify-items: center; align-items: center; padding: 2rem 1rem; gap: 1.5rem; }
.keyvisual { position: relative; width: min(1100px, 92vw); aspect-ratio: 16/9; border-radius: 14px; overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,.6); background: #2a2018; }
.keyvisual img { width: 100%; height: 100%; object-fit: cover; display: block; }
.keyvisual .placeholder-label { display: none; }
.keyvisual.missing { background: repeating-linear-gradient(135deg, #2a2018 0 24px, #332818 24px 48px); display: grid; place-items: center; }
.keyvisual.missing .placeholder-label { display: block; color: #c9b58a; font-size: 1.4rem; background: rgba(0,0,0,.45); padding: .5rem 1rem; border-radius: 8px; border: 2px dashed #c9b58a; }
.card { width: min(720px, 92vw); background: var(--paper); color: var(--ink); border-radius: 14px; padding: 2rem 2.5rem; box-shadow: 0 16px 50px rgba(0,0,0,.55); text-align: center; position: relative; }
.card::before { content: ""; position: absolute; inset: 10px; border: 2px dashed var(--paper-dark); border-radius: 10px; pointer-events: none; }
.kicker { margin: 0 0 .25rem; text-transform: uppercase; letter-spacing: .18em; font-size: .8rem; color: var(--stamp); font-weight: 700; }
h1 { margin: 0 0 .5rem; font-size: clamp(1.6rem, 3.6vw, 2.6rem); line-height: 1.1; }
.subtitle { margin: 0 0 1.2rem; font-style: italic; opacity: .8; }
.btn { display: inline-block; padding: .7rem 1.4rem; border-radius: 10px; border: 3px solid var(--ink); background: var(--accent); color: var(--ink); font-weight: 700; text-decoration: none; cursor: pointer; box-shadow: 4px 4px 0 var(--ink); transition: transform .08s, box-shadow .08s; }
.btn:hover { transform: translate(-1px,-1px); box-shadow: 5px 5px 0 var(--ink); }
.btn:active { transform: translate(3px,3px); box-shadow: 1px 1px 0 var(--ink); }
.btn.big { font-size: 1.4rem; padding: .9rem 2.4rem; }
.hint { margin-top: 1rem; font-size: .95rem; opacity: .8; }
.notice { font-weight: 700; font-size: 1.15rem; margin: .5rem 0 1rem; }
.codeform label { display: block; margin-bottom: .5rem; }
.codeform .row { display: flex; gap: .6rem; justify-content: center; flex-wrap: wrap; }
.codeform input { font-size: 1.4rem; letter-spacing: .25em; text-transform: uppercase; width: 14ch; text-align: center; padding: .5rem .6rem; border: 3px solid var(--ink); border-radius: 10px; background: #fff8e6; }
.error { color: var(--stamp); font-weight: 700; margin-top: .8rem; }
.foot { color: #a8977a; font-size: .85rem; text-align: center; }