:root { --ink: #1e2a28; --muted: #6b7a77; --line: #d9e2df; --bg: #eef3f1; --card: #ffffff; --accent: #147769; --accent-ink: #0d564c; --warn: #b7791f; --bad: #b4443c; --sky: linear-gradient(#cfe6ff, #eef6ff 60%, #e6efe9); --night: linear-gradient(#0f1a2e, #1f2d4a 60%, #2a3a3a); }
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.5 -apple-system, "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", sans-serif; }
.hidden { display: none !important; }
button, input, select, textarea { font: inherit; } button { cursor: pointer; }
a { color: var(--accent-ink); }
.top { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 10px 16px; background: #fff; border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 20; }
.brand { font-weight: 800; color: var(--ink); text-decoration: none; display: flex; align-items: center; gap: 8px; white-space: nowrap; }
.brand small { font-weight: 500; color: var(--muted); }
.mark { display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 8px; background: var(--accent); color: #fff; font-weight: 900; }
.top-right { display: flex; gap: 8px; align-items: center; } .who { color: var(--muted); font-size: 13px; white-space: nowrap; }
.ghost { border: 1px solid var(--line); background: #fff; border-radius: 8px; padding: 6px 10px; color: var(--ink); text-decoration: none; min-height: 36px; display: inline-flex; align-items: center; }
.primary { background: var(--accent); color: #fff; border: 0; border-radius: 10px; padding: 10px 16px; font-weight: 700; min-height: 44px; text-decoration: none; display: inline-flex; align-items: center; justify-content: center; }
.primary:disabled { opacity: .5; cursor: default; } .primary.small { min-height: 40px; padding: 8px 14px; white-space: nowrap; }
.danger { background: #fff; color: var(--bad); border: 1px solid #e3b5b1; border-radius: 10px; padding: 8px 12px; min-height: 40px; }
.secondary { background: #fff; color: var(--accent-ink); border: 1px solid var(--accent); border-radius: 10px; padding: 8px 12px; min-height: 40px; font-weight: 700; }
main { max-width: 1100px; margin: 0 auto; padding: 12px 16px 32px; }
.eyebrow { font-size: 12px; letter-spacing: .12em; color: var(--accent-ink); font-weight: 700; }
.intro, .help, .faint { color: var(--muted); } .faint { font-size: 13px; }
.gate { max-width: 640px; margin: 24px auto; background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 24px; }
.gate h1 { margin: 4px 0 8px; } .gate-cards { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); margin: 16px 0; }
.gate-card { border: 1px solid var(--line); border-radius: 12px; padding: 14px; display: grid; gap: 6px; align-content: start; } .gate-card p { margin: 0; color: var(--muted); font-size: 14px; }

.status-bar { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 10px; }
.status-line { font-size: 14px; color: var(--muted); min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.stage-wrap { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 8px; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.stage { position: relative; width: 100%; min-width: 720px; overflow: hidden; border-radius: 12px; background: var(--sky); aspect-ratio: 1536 / 1024; }
.stage.night { background: var(--night); }
.stage-title { position: absolute; left: 12px; top: 10px; z-index: 50; background: rgba(255,255,255,.88); border-radius: 10px; padding: 6px 10px; font-weight: 700; font-size: 14px; }
.obj { position: absolute; transform: translateX(-50%); display: grid; justify-items: center; pointer-events: none; }
.obj img { width: 100%; height: auto; display: block; }
.obj.ground { transform: none; left: 0; bottom: 0; width: 100%; } .obj.ground img { width: 100%; }
.sec { position: absolute; transform: translateX(-50%); display: grid; justify-items: center; width: 8%; }
.sec button { border: 0; background: none; padding: 0; display: grid; justify-items: center; width: 100%; }
.sec button:focus-visible { outline: 3px solid #ffbf47; outline-offset: 4px; border-radius: 8px; }
.sec img { width: 100%; height: auto; display: block; filter: drop-shadow(0 6px 6px rgba(0,0,0,.25)); transition: transform .4s ease; }
.sec.flip img { transform: scaleX(-1); }
.sec .tag { margin-top: -6px; background: rgba(255,255,255,.95); border: 1px solid var(--line); border-radius: 8px; padding: 2px 6px; font-size: 11px; line-height: 1.3; text-align: center; white-space: nowrap; max-width: 170%; overflow: hidden; text-overflow: ellipsis; }
.sec .tag b { display: block; font-size: 12px; }
.sec.mine .tag { border-color: var(--accent); color: var(--accent-ink); } .sec.ask .tag { border-color: var(--warn); color: var(--warn); } .sec.talking .tag { border-color: #8fb9b0; }
.sec.mine::after { content: ''; position: absolute; left: 50%; bottom: 10px; width: 70%; height: 10px; transform: translateX(-50%); border-radius: 50%; background: rgba(20,119,105,.35); filter: blur(3px); z-index: -1; }
.empty-hint { position: absolute; left: 50%; bottom: 10%; transform: translateX(-50%); z-index: 55; background: rgba(255,255,255,.94); border-radius: 14px; padding: 12px 16px; max-width: 86%; text-align: center; font-size: 14px; }
@media (prefers-reduced-motion: reduce) { .sec img { transition: none; } }

.tabs { display: flex; gap: 6px; margin: 10px 0; }
.tab { flex: 1; border: 1px solid var(--line); background: #fff; border-radius: 10px; padding: 10px 6px; min-height: 44px; font-weight: 700; color: var(--muted); position: relative; }
.tab[aria-pressed="true"] { background: var(--accent); color: #fff; border-color: var(--accent); }
.badge { display: inline-grid; place-items: center; min-width: 20px; height: 20px; padding: 0 6px; border-radius: 999px; background: var(--warn); color: #fff; font-size: 12px; margin-left: 4px; }
.panel { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 16px; }
.panel h2 { margin: 0 0 4px; font-size: 18px; } .panel h3 { margin: 16px 0 6px; font-size: 14px; color: var(--muted); }
.form { display: grid; gap: 10px; } .form label { display: grid; gap: 4px; font-size: 13px; color: var(--muted); }
.form input, .form select, .form textarea { border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; font-size: 16px; color: var(--ink); background: #fff; min-height: 44px; width: 100%; min-width: 0; }
.form .slot, .form .check, .form .link-box { display: flex; } .form .slot input, .form .check input { width: 20px; min-height: 0; }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; } .row.two > * { flex: 1; min-width: 120px; }
.msg { min-height: 1.2em; font-size: 14px; } .msg.bad { color: var(--bad); }
.list { display: grid; gap: 8px; }
.item { border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px; font-size: 14px; display: grid; gap: 6px; background: #fff; }
.item b { font-size: 15px; } .item .actions { display: flex; gap: 6px; flex-wrap: wrap; }
.item.approve { border-color: var(--warn); } .item.choose { border-color: #8fb9b0; }
.slots { display: grid; gap: 6px; }
.slot { display: flex; align-items: center; gap: 10px; border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; background: #fff; cursor: pointer; min-height: 48px; }
.slot input { width: 20px; height: 20px; margin: 0; } .slot.rec { border-color: var(--accent); } .slot .rec-tag { margin-left: auto; font-size: 12px; color: var(--accent-ink); font-weight: 700; } .slot.busy { opacity: .6; } .slot .busy-tag { margin-left: auto; font-size: 12px; color: var(--warn); }
.chips { display: flex; gap: 6px; flex-wrap: wrap; } .chip { border: 1px solid var(--line); background: #fff; border-radius: 999px; padding: 6px 12px; min-height: 36px; }
.chip[aria-pressed="true"] { background: var(--accent); color: #fff; border-color: var(--accent); }
.days { display: flex; gap: 4px; } .days .chip { padding: 6px 0; flex: 1; text-align: center; }
.link-box { display: flex; gap: 6px; align-items: center; } .link-box input { flex: 1; min-width: 0; font-size: 13px; }
.kv { display: grid; grid-template-columns: 80px 1fr; gap: 4px 10px; font-size: 14px; } .kv dt { color: var(--muted); } .kv dd { margin: 0; }
.toast { position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%); background: var(--ink); color: #fff; padding: 10px 16px; border-radius: 10px; opacity: 0; pointer-events: none; transition: opacity .2s; z-index: 60; max-width: 90vw; }
.toast.on { opacity: 1; }
.grid-chars { display: grid; grid-template-columns: repeat(auto-fill, minmax(64px, 1fr)); gap: 6px; max-height: 240px; overflow: auto; padding: 4px; border: 1px solid var(--line); border-radius: 12px; }
.grid-chars button { border: 2px solid transparent; border-radius: 10px; background: #f4f6f5; padding: 4px; display: grid; justify-items: center; }
.grid-chars button[aria-pressed="true"] { border-color: var(--accent); background: #e6f1ee; } .grid-chars img { width: 100%; height: auto; display: block; }

/* 응답 페이지 */
.respond { max-width: 560px; margin: 12px auto; background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 20px; display: grid; gap: 12px; }
.respond h1 { margin: 0; font-size: 20px; } .respond .host { display: flex; gap: 12px; align-items: center; } .respond .host img { width: 72px; height: auto; filter: drop-shadow(0 4px 4px rgba(0,0,0,.2)); }
.respond .done { border: 1px solid #8fb9b0; background: #eef7f4; border-radius: 12px; padding: 12px; display: grid; gap: 6px; }
.respond .note { border-left: 3px solid var(--warn); padding: 4px 10px; color: var(--muted); font-size: 14px; }
.check { display: flex; gap: 10px; align-items: center; font-size: 15px; color: var(--ink); } .check input { width: 20px; height: 20px; margin: 0; }
@media (max-width: 600px) { .top { padding: 8px 12px; } .brand small { display: none; } main { padding: 10px 12px 28px; } .status-line { font-size: 13px; } .sec { width: 9%; } .sec .tag { font-size: 10px; } }

.voice { border: 1px solid #8fb9b0; background: #f3f8f6; border-radius: 12px; padding: 10px 12px; display: grid; gap: 8px; margin-bottom: 4px; }
.voice textarea { border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; font-size: 16px; width: 100%; resize: vertical; }
.paid { font-size: 11px; font-weight: 700; color: var(--warn); border: 1px solid var(--warn); border-radius: 999px; padding: 1px 8px; margin-left: 6px; vertical-align: middle; }
.card-box { display: grid; gap: 2px; border: 1px solid var(--line); border-left: 4px solid var(--accent); border-radius: 10px; padding: 8px 12px; font-size: 14px; margin: 6px 0; background: #fff; } .card-box b { font-size: 15px; }

/* Policy page, same-origin stylesheet for CSP. */
.doc { max-width: 720px; margin: 16px auto; background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 24px; font-size: 16px; line-height: 1.7; } .doc h1 { font-size: 22px; margin: 0 0 8px; } .doc h2 { font-size: 17px; margin: 22px 0 6px; } .doc table { border-collapse: collapse; width: 100%; font-size: 15px; } .doc td, .doc th { border: 1px solid var(--line); padding: 8px; text-align: left; vertical-align: top; }