/* White theme. Flat surfaces, 6px corners, no shadows. */
:root { --paper:#fff; --ink:#1d2821; --muted:#7a827c; --primary:#28543d; --primary-hover:#1d402d; --lime:#d3e8a5; --soft:#f6f8f4; --line:#e7ebe5; --error:#b23c32; --radius:6px; --font:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif; }
* { box-sizing:border-box; }
[hidden] { display:none !important; }
html { color-scheme:light; scroll-padding-top:80px; }
body { margin:0; background:var(--paper); color:var(--ink); font-family:var(--font); font-size:14px; line-height:1.6; -webkit-font-smoothing:antialiased; }
body:has(dialog[open]) { overflow:hidden; }
::selection { background:var(--lime); color:var(--ink); }
a { color:inherit; text-decoration:none; }
button,input,textarea { font:inherit; }
button,a,input,textarea,summary { -webkit-tap-highlight-color:transparent; }
button { cursor:pointer; }
button:disabled { opacity:.55; cursor:wait; }
button, a { touch-action:manipulation; }
button,input,textarea,a,summary { transition:background-color .16s ease,border-color .16s ease,color .16s ease; }
:focus-visible { outline:2px solid var(--primary); outline-offset:4px; }
h1,h2,h3,p { margin:0; }
h1,h2,h3 { font-weight:650; line-height:1.2; letter-spacing:-.04em; }
p { text-wrap:pretty; }
svg { flex-shrink:0; }
.button { display:inline-flex; align-items:center; justify-content:center; gap:12px; min-height:44px; border:1px solid transparent; border-radius:var(--radius); padding:10px 20px; font-size:14px; font-weight:550; white-space:nowrap; }
.button:hover:not(:disabled) { background:var(--soft); }
.button:active:not(:disabled) { transform:translateY(1px); }
.button-primary { color:white; background:var(--primary); }
.button-primary:hover:not(:disabled) { background:var(--primary-hover); }
.button-outline { color:var(--ink); background:white; border-color:var(--line); }
.button-outline:hover:not(:disabled) { border-color:#b9c6b7; }
.button-small { min-height:36px; padding:6px 12px; font-size:13px; gap:8px; }
.button-full { width:100%; }
.button-danger { color:white; background:var(--error); }
.button-danger:hover:not(:disabled) { background:#963027; }
.icon-button { display:inline-flex; align-items:center; justify-content:center; width:36px; height:36px; border:0; border-radius:var(--radius); background:transparent; color:var(--muted); flex-shrink:0; }
.icon-button:hover:not(:disabled) { background:var(--soft); color:var(--ink); }
.text-button,.text-link { display:inline-flex; gap:8px; align-items:center; border:0; padding:0; background:transparent; color:var(--primary); font-size:13px; }
.text-button:hover,.text-link:hover { color:var(--primary-hover); text-decoration:underline; text-underline-offset:4px; }
.site-header { border-bottom:1px solid var(--line); }
.header-inner { max-width:1120px; padding:0 28px; margin:auto; min-height:76px; display:flex; align-items:center; gap:60px; }
.brand { display:flex; gap:10px; align-items:center; font-size:19px; font-weight:700; letter-spacing:-.6px; white-space:nowrap; }
.brand-mark { width:27px; height:28px; display:flex; align-items:center; gap:4px; }
.brand-mark i { display:block; height:18px; width:7px; border-radius:2px; background:var(--primary); }
.brand-mark i:nth-child(2) { width:3px; height:28px; }
.brand-mark i:last-child { background:#a9c876; }
.main-nav { display:flex; align-items:center; gap:32px; height:76px; font-size:13px; }
.main-nav a { color:var(--muted); height:100%; display:flex; align-items:center; border-bottom:2px solid transparent; padding-top:2px; }
.main-nav a:hover { color:var(--ink); }
.main-nav a[aria-current="page"] { color:var(--ink); border-color:var(--primary); }
.account-trigger { margin-left:auto; max-width:180px; overflow:hidden; text-overflow:ellipsis; }
.home-main { max-width:1120px; padding:0 28px; margin:auto; }
.hero { display:grid; grid-template-columns:1.05fr 1fr; align-items:center; min-height:520px; padding:72px 0 68px; gap:28px; }
.eyebrow { font-size:12px; color:var(--muted); letter-spacing:.08em; display:flex; align-items:center; gap:8px; margin-bottom:16px; }
.live-dot { width:6px; height:6px; border-radius:2px; background:var(--primary); }
.hero h1 { font-size:clamp(48px,6.5vw,76px); font-weight:700; line-height:1.16; letter-spacing:-.065em; }
.highlight { color:var(--primary); }
.hero-description { margin:24px 0 30px; color:var(--muted); font-size:15px; line-height:1.8; }
.hero .button { min-height:48px; padding:12px 22px; gap:32px; }
.hero-art { padding-top:8px; }
.hero-art>svg { width:100%; height:auto; display:block; }
.art-caption { display:flex; justify-content:space-between; color:#929b92; padding:0 18%; font-size:11px; letter-spacing:.08em; }
.home-bottom { display:grid; grid-template-columns:.85fr 1.25fr; border-top:1px solid var(--line); padding:38px 0 40px; gap:64px; }
.home-bottom h2 { font-size:25px; }
.home-bottom .eyebrow { margin-bottom:10px; }
.home-account>.eyebrow { margin-bottom:10px; }
.home-account .muted { margin:14px 0 20px; }
.home-account .button { font-size:13px; }
.home-discussions { border-left:1px solid var(--line); padding-left:40px; }
.section-heading { display:flex; justify-content:space-between; align-items:center; gap:20px; margin-bottom:14px; }
.recent-row { display:flex; align-items:center; justify-content:space-between; gap:16px; padding:13px 0; border-bottom:1px solid var(--line); }
.recent-row:last-child { border-bottom:0; }
.recent-row:hover .recent-title { color:var(--primary); }
.recent-title { font-size:14px; overflow:hidden; white-space:nowrap; text-overflow:ellipsis; }
.recent-meta { font-size:12px; color:var(--muted); flex-shrink:0; }
.empty-mini { color:var(--muted); padding:22px 0; font-size:13px; }
.home-profile { display:flex; align-items:center; gap:12px; margin:22px 0 16px; }
.home-profile strong { font-size:16px; overflow-wrap:anywhere; }
.grade-text { color:var(--primary); font-size:12px; margin-top:4px; }
.avatar { display:inline-flex; align-items:center; justify-content:center; width:36px; height:36px; flex-shrink:0; border-radius:var(--radius); background:#edf3e7; color:var(--primary); font-size:14px; font-weight:600; }
.avatar-large { width:56px; height:56px; font-size:22px; }
.about { border-top:1px solid var(--line); padding:18px 0; font-size:12px; color:var(--muted); }
.about summary { list-style:none; cursor:pointer; display:flex; align-items:center; justify-content:space-between; gap:16px; }
.about summary::-webkit-details-marker { display:none; }
.about summary span { font-size:18px; line-height:1; }
.about[open] summary span { transform:rotate(45deg); }
.about p { max-width:700px; margin-top:12px; line-height:1.8; }
.site-footer { display:flex; align-items:center; justify-content:space-between; max-width:1064px; margin:28px auto 0; padding:22px 0 30px; border-top:1px solid var(--line); font-size:11px; color:var(--muted); }
.modal { width:min(420px,calc(100% - 32px)); max-height:calc(100dvh - 40px); padding:28px; border:1px solid var(--line); border-radius:8px; color:var(--ink); background:white; overflow:auto; }
.modal::backdrop { background:rgba(22,36,25,.25); }
.modal[open] { animation:modal-in .16s ease-out; }
.modal-header { display:flex; align-items:center; justify-content:space-between; gap:16px; margin-bottom:24px; }
.modal-header h2,.confirm-modal h2 { font-size:22px; }
.modal-header .icon-button { margin-right:-8px; }
.auth-tabs { display:flex; gap:24px; border-bottom:1px solid var(--line); margin-bottom:24px; }
.auth-tabs button { border:0; border-bottom:2px solid transparent; padding:0 2px 12px; background:transparent; font-size:14px; color:var(--muted); }
.auth-tabs button[aria-selected="true"] { border-color:var(--primary); color:var(--ink); }
.auth-tabs button:hover { color:var(--ink); }
.field { margin-bottom:20px; }
.field label { display:block; font-size:13px; font-weight:550; margin-bottom:8px; }
input,textarea { display:block; width:100%; min-height:44px; padding:11px 13px; border:1px solid #dfe5dc; border-radius:var(--radius); color:var(--ink); background:white; outline-offset:2px; }
input::placeholder,textarea::placeholder { color:#a1a7a1; font-weight:400; font-size:13px; }
input:hover,textarea:hover { border-color:#bdc9b8; }
input:focus,textarea:focus { border-color:var(--primary); }
textarea { resize:vertical; line-height:1.8; }
.password-field { position:relative; }
.password-field input { padding-right:48px; }
.password-field .icon-button { position:absolute; right:4px; top:4px; }
.field-note { font-size:11px; color:var(--muted); display:inline-block; margin-top:7px; }
.centered { display:block; text-align:center; margin-top:14px; }
.muted { color:var(--muted); }
.status { font-size:12px; color:var(--muted); margin-top:14px; }
.status[data-state="error"] { color:var(--error); }
.account-profile { text-align:center; padding:8px 0 28px; }
.account-profile h3 { margin-top:14px; font-size:20px; overflow-wrap:anywhere; }
.account-profile .grade-text { margin-top:8px; }
.confirm-modal p { margin-top:12px; font-size:13px; }
.dialog-actions { display:flex; gap:10px; justify-content:flex-end; }
.confirm-modal .dialog-actions { margin-top:28px; }
.toast { position:fixed; z-index:20; left:50%; bottom:28px; transform:translateX(-50%); padding:12px 20px; border:1px solid var(--line); border-radius:var(--radius); background:var(--ink); color:white; font-size:13px; max-width:calc(100% - 32px); pointer-events:none; }
.forum-main { width:100%; max-width:1016px; min-height:calc(100dvh - 192px); padding:56px 28px 32px; margin:auto; }
.forum-heading { display:flex; align-items:center; justify-content:space-between; gap:20px; margin-bottom:38px; }
.forum-heading h1 { font-size:42px; line-height:1.2; }
.forum-heading .eyebrow { margin-bottom:12px; }
.heading-dot { color:var(--primary); }
.forum-actions { display:flex; align-items:center; gap:12px; }
.list-heading { display:flex; justify-content:space-between; padding:12px 0; border-bottom:1px solid var(--line); color:var(--muted); font-size:11px; }
.thread-row { display:flex; align-items:center; gap:16px; padding:23px 0; border-bottom:1px solid var(--line); }
.thread-row:hover { background:var(--soft); }
.thread-info { min-width:0; flex:1; }
.thread-info h2 { font-size:17px; font-weight:550; letter-spacing:-.02em; line-height:1.5; overflow-wrap:anywhere; }
.thread-meta { display:flex; align-items:center; flex-wrap:wrap; column-gap:12px; row-gap:3px; margin-top:7px; color:var(--muted); font-size:11px; }
.thread-meta .grade { color:var(--primary); }
.reply-count { font-size:12px; color:var(--muted); min-width:32px; text-align:right; }
.empty-state { padding:68px 0; text-align:center; }
.empty-symbol { margin:0 auto 16px; color:#aabd9e; width:42px; height:42px; }
.empty-state h2 { font-size:17px; font-weight:550; }
.empty-state p { color:var(--muted); font-size:12px; margin-top:8px; }
.back-link { display:inline-block; color:var(--muted); font-size:12px; margin:0 0 24px; }
.back-link:hover { color:var(--primary); }
.forum-post { padding:24px 0; border-bottom:1px solid var(--line); overflow-wrap:anywhere; }
#thread-detail .forum-post { padding-top:0; }
#thread-detail h2 { font-size:32px; line-height:1.4; letter-spacing:-.035em; margin-bottom:20px; }
.post-header { display:flex; align-items:center; gap:12px; }
.post-header .thread-meta { margin-top:0; flex:1; }
.post-header .delete-post { margin-left:auto; }
.delete-post { color:var(--muted); }
.delete-post:hover:not(:disabled) { color:var(--error); background:#fbf2f0; }
.forum-content { white-space:pre-wrap; overflow-wrap:anywhere; line-height:1.9; margin-top:22px; font-size:14px; }
.replies-heading { padding-top:32px; }
.replies-heading h2 { font-size:18px; }
.reply-composer { padding-top:30px; }
.reply-composer>label { display:block; font-size:13px; font-weight:550; margin-bottom:10px; }
.reply-composer textarea { min-height:112px; }
.composer-bottom { display:flex; align-items:center; justify-content:space-between; gap:12px; margin-top:14px; }
.composer-bottom .field-note { margin-top:0; }
.reply-login { display:flex; align-items:center; justify-content:space-between; gap:16px; border-top:1px solid var(--line); padding-top:24px; margin-top:24px; font-size:13px; }
.compose-modal { width:min(620px,calc(100% - 32px)); }
.compose-modal textarea { max-height:44dvh; }
.forum-pagination { display:flex; justify-content:center; align-items:center; gap:20px; font-size:12px; color:var(--muted); padding:28px 0 0; }
.forum-pagination .button { min-height:36px; padding:6px 12px; font-size:12px; }
.skeleton-row { height:85px; border-bottom:1px solid var(--line); position:relative; }
.skeleton-row::after { content:""; display:block; height:12px; width:40%; background:var(--soft); position:absolute; top:30px; left:0; border-radius:3px; animation:pulse 1.1s ease-in-out infinite; }
.skip-link { position:absolute; top:-100px; left:16px; background:var(--paper); z-index:30; padding:10px; border:1px solid var(--primary); }
.skip-link:focus { top:12px; }
.noscript { padding:20px; text-align:center; }
@keyframes modal-in { from { opacity:0; transform:translateY(6px); } to { opacity:1; transform:translateY(0); } }
@keyframes pulse { 50% { opacity:.35; } }
@media(min-width:1500px) { .hero { min-height:570px; } }
@media(max-width:760px) { .header-inner { gap:28px; padding:0 20px; min-height:66px; } .main-nav { gap:22px; height:66px; } .brand { font-size:17px; } .home-main { padding:0 24px; } .hero { padding:56px 0 46px; min-height:0; gap:8px; } .hero h1 { font-size:50px; } .hero-description { font-size:13px; } .hero-art { margin-right:-12px; } .home-bottom { gap:28px; } .home-discussions { padding-left:28px; } .home-bottom h2 { font-size:22px; } .site-footer { margin:20px 24px 0; } .forum-main { padding:36px 24px 28px; } .forum-heading h1 { font-size:34px; } }
@media(max-width:520px) { .header-inner { padding:0 18px; gap:24px; } .brand { gap:7px; font-size:16px; } .brand-mark { transform:scale(.85); width:23px; } .main-nav { gap:16px; font-size:12px; } .account-trigger { padding:6px 10px; font-size:12px; gap:6px; max-width:108px; } .account-trigger svg { width:14px; } .home-main { padding:0 24px; } .hero { grid-template-columns:1fr; padding-top:42px; padding-bottom:30px; gap:8px; } .hero h1 { font-size:56px; } .hero-description { margin:20px 0 24px; font-size:14px; } .hero-art { max-width:330px; margin:10px auto 0; padding:0; width:100%; } .hero-art>svg { max-height:220px; } .art-caption { font-size:10px; } .home-bottom { grid-template-columns:1fr; padding:28px 0; gap:30px; } .home-discussions { padding:28px 0 0; border-left:0; border-top:1px solid var(--line); } .home-account .muted { margin:12px 0 16px; font-size:13px; } .home-bottom h2 { font-size:23px; } .section-heading { margin-bottom:10px; } .forum-heading { margin-bottom:26px; gap:12px; align-items:flex-end; } .forum-heading h1 { font-size:29px; } .forum-heading .eyebrow { font-size:10px; margin-bottom:10px; } .forum-actions .button { padding:9px 12px; font-size:12px; gap:6px; } .forum-actions .button svg { width:16px; } .thread-row { gap:12px; padding:19px 0; } .thread-info h2 { font-size:15px; } .thread-meta { column-gap:8px; font-size:10px; } .avatar { width:32px; height:32px; font-size:13px; } .reply-count { min-width:20px; } .modal { padding:24px; } #thread-detail h2 { font-size:26px; } .post-header { gap:10px; } .post-header .thread-meta { max-width:calc(100% - 88px); } .composer-bottom .button { padding:9px 14px; } .forum-pagination { gap:12px; } }
@media(prefers-reduced-motion:reduce) { *,*::before,*::after { animation:none !important; transition:none !important; } }

.hero-copy>.button { margin-top:28px; }
#home-guest { margin-top:20px; }

.juice-intro { max-width:540px; color:var(--ink); font-size:14px; line-height:1.9; }
.hero-copy>.juice-intro { margin:24px 0 0; }

#nickname-form { margin-bottom:12px; }

#admin-entry { margin-bottom:12px; }
.admin-user { display:flex; gap:24px; align-items:center; justify-content:space-between; padding:20px 0; border-bottom:1px solid var(--line); }
.admin-user-info { min-width:0; overflow-wrap:anywhere; }
.admin-user-info .field-note { display:block; }
.admin-grade-form { display:flex; gap:12px; align-items:center; }
.admin-grade-form input { max-width:220px; }
@media(max-width:520px) { .admin-user { align-items:stretch; flex-direction:column; gap:12px; } .admin-grade-form input { max-width:none; } }