:root{--bg-canvas: #efe4d0;--bg-panel: rgba(255, 250, 239, .9);--bg-panel-strong: #fff8eb;--ink-strong: #1f1a17;--ink-soft: #61564e;--accent: #0f5c4d;--accent-strong: #0a3f35;--line: rgba(31, 26, 23, .1);--shadow-soft: 0 18px 48px rgba(33, 24, 19, .12);--radius-lg: 28px;--radius-md: 18px;--space-lg: clamp(1.5rem, 2vw, 2.5rem);--space-md: 1rem;--space-sm: .5rem;--font-display: "Iowan Old Style", "Noto Serif TC", serif;--font-body: "Noto Sans TC", "PingFang TC", sans-serif}*{box-sizing:border-box}html,body,#root{min-height:100%}body{margin:0;font-family:var(--font-body);color:var(--ink-strong);background:radial-gradient(circle at top,rgba(15,92,77,.16),transparent 34%),linear-gradient(180deg,#f5eddc 0%,var(--bg-canvas) 100%)}body:before{content:"";position:fixed;inset:0;pointer-events:none;background-image:linear-gradient(rgba(255,255,255,.12) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.12) 1px,transparent 1px);background-size:36px 36px;-webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.4),transparent 80%);mask-image:linear-gradient(180deg,rgba(0,0,0,.4),transparent 80%)}.app-topbar{position:sticky;top:0;z-index:4;padding:1rem 0 0}.app-topbar__inner{display:flex;justify-content:space-between;align-items:center;gap:1rem;width:min(1040px,calc(100vw - 2rem));margin:0 auto;padding:.85rem 1rem;border:1px solid rgba(15,92,77,.14);border-radius:20px;background:#fff9f0d6;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);box-shadow:var(--shadow-soft)}.app-topbar__title{font-family:var(--font-display);font-size:clamp(1rem,2.2vw,1.2rem);color:var(--accent-strong);letter-spacing:.06em}.language-switcher{min-width:9.5rem;min-height:42px;padding:.65rem .85rem;border-radius:14px;border:1px solid rgba(31,26,23,.16);background:#ffffffe6;font:inherit}.language-switcher:focus-visible{outline:3px solid rgba(15,92,77,.24);outline-offset:2px}.app-shell{width:min(960px,calc(100vw - 2rem));margin:0 auto;padding:clamp(2rem,6vw,5rem) 0 3rem}.gate-shell,.lobby-layout,.table-layout{width:min(1040px,calc(100vw - 2rem));margin:0 auto;padding:clamp(2rem,6vw,5rem) 0 3rem}.table-grid{display:grid;grid-template-columns:minmax(320px,.9fr) minmax(0,1.1fr);gap:1rem;margin-top:1rem}.table-side-column{display:grid;gap:1rem;align-content:start}.lobby-grid{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(320px,.7fr);gap:1rem;margin-top:1rem}.lobby-panel{padding:clamp(1.25rem,3vw,2rem);border:1px solid var(--line);border-radius:var(--radius-lg);background:linear-gradient(135deg,var(--bg-panel) 0%,var(--bg-panel-strong) 100%);box-shadow:var(--shadow-soft)}.table-panel{padding:clamp(1rem,2.5vw,1.5rem);border:1px solid var(--line);border-radius:var(--radius-lg);background:linear-gradient(180deg,#fff9f0f5,#f8f1e6eb);box-shadow:var(--shadow-soft)}.connection-banner{position:sticky;top:6rem;z-index:2;width:min(1040px,calc(100vw - 2rem));margin:1rem auto 0;padding:.8rem 1rem;border-radius:16px;border:1px solid rgba(15,92,77,.18);background:#fff8ecf2;color:var(--accent-strong);box-shadow:var(--shadow-soft)}.match-result-modal{width:min(420px,calc(100vw - 2rem));border:1px solid var(--line);border-radius:24px;padding:1.25rem;background:#fff9f0fa;color:var(--ink-strong);box-shadow:var(--shadow-soft)}.match-result-modal::backdrop{background:#1f1a1738}.panel-header{display:flex;justify-content:space-between;gap:1rem;align-items:baseline;margin-bottom:1rem}.panel-header h2,.lobby-panel h1{margin:0;font-family:var(--font-display)}.panel-header p{margin:0;color:var(--ink-soft)}.share-chip{display:inline-flex;margin-top:1rem;padding:.55rem .8rem;border-radius:999px;border:1px solid rgba(15,92,77,.18);background:#0f5c4d14;color:var(--accent-strong)}.seat-list{list-style:none;margin:0;padding:0;display:grid;gap:.75rem}.seat-item{display:flex;justify-content:space-between;gap:1rem;align-items:center;padding:.95rem 1rem;border-radius:var(--radius-md);border:1px solid var(--line);background:#ffffffad}.seat-item p{margin:.2rem 0 0;color:var(--ink-soft)}.seat-badge{padding:.3rem .6rem;border-radius:999px;background:#0f5c4d1f;color:var(--accent-strong);font-size:.78rem;letter-spacing:.08em}.seat-actions{display:grid;gap:.55rem;justify-items:end}.seat-remove-button{min-height:38px;padding:.55rem .85rem;border-radius:12px;border:1px solid rgba(177,61,61,.2);background:#b13d3d14;color:#8d3131;font:inherit;cursor:pointer}.host-controls,.gate-panel{display:grid;gap:1rem}.gate-form,.field,.control-row{display:grid;gap:.65rem}.gate-actions{display:flex;flex-wrap:wrap;gap:1rem}.form-error{margin:0;color:#b13d3d;font-size:.92rem}.field span{font-size:.86rem;color:var(--ink-soft)}.field input,.field select,.control-row button,.gate-form button{min-height:44px;border-radius:14px;border:1px solid rgba(31,26,23,.16);font:inherit}.field input,.field select{padding:.8rem .9rem;background:#ffffffe6}.control-row{grid-template-columns:repeat(2,minmax(0,1fr))}.control-row button,.gate-form button{background:var(--accent);color:#fff;cursor:pointer}.button--primary{position:relative;overflow:hidden;min-height:52px;border:0;border-radius:18px;background:linear-gradient(135deg,rgba(255,255,255,.18),transparent 36%) top left / 100% 100% no-repeat,linear-gradient(135deg,#1c8069,#0f5c4d 55%,#0b473d);color:#fffaf0;font-family:var(--font-display);font-size:1rem;letter-spacing:.03em;box-shadow:0 18px 32px #0f5c4d2e,inset 0 1px #ffffff38;cursor:pointer;transition:transform .14s ease,box-shadow .14s ease,filter .14s ease}.button--primary:before{content:"";position:absolute;inset:1px;border-radius:17px;border:1px solid rgba(255,255,255,.16);pointer-events:none}.button--primary:not(:disabled):hover,.button--primary:not(:disabled):focus-visible{transform:translateY(-1px);box-shadow:0 22px 38px #0f5c4d38,inset 0 1px #ffffff47;filter:saturate(1.05)}.button--primary:disabled{opacity:.5;cursor:not-allowed;box-shadow:none}.gate-form button:disabled{opacity:.45;cursor:not-allowed}.bid-grid,.hand-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(72px,1fr));gap:.75rem;margin-bottom:1rem}.bid-grid button,.hand-grid button{min-height:56px;border-radius:16px;border:1px solid rgba(31,26,23,.16);background:#ffffffeb;font:inherit;cursor:pointer}.hand-grid{grid-template-columns:repeat(auto-fit,minmax(96px,1fr))}.hand-grid--compact{grid-template-columns:repeat(auto-fit,minmax(96px,132px));justify-content:start}.card-button{padding:0;border:0;background:transparent}.card-button:focus-visible{outline:3px solid rgba(15,92,77,.32);outline-offset:3px}.card{position:relative;width:100%;aspect-ratio:5 / 7;padding:.7rem;border-radius:18px;border:1px solid rgba(31,26,23,.16);overflow:hidden;box-shadow:0 14px 28px #1a140f1f,inset 0 1px #ffffffb8;transition:transform .14s ease,box-shadow .14s ease,border-color .14s ease}.card--face-up{background:radial-gradient(circle at top,rgba(15,92,77,.08),transparent 34%),linear-gradient(180deg,#fffdf8,#f2e8d8)}.card--face-down{background:linear-gradient(180deg,#22584e,#123f38)}.card--playable{border-color:#0f5c4d4d;box-shadow:0 18px 34px #0f5c4d2e,inset 0 1px #ffffffb8}.card--trump{border-color:#bf8b388c;box-shadow:0 18px 34px #0f5c4d1f,0 0 0 2px #d8af5633,inset 0 1px #ffffffb8;background:radial-gradient(circle at top right,rgba(216,175,86,.18),transparent 32%),linear-gradient(180deg,#fffdf8,#f2e8d8)}.card--trump:after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(135deg,rgba(216,175,86,.34),transparent 18%) top left / 100% 100% no-repeat,linear-gradient(180deg,rgba(216,175,86,.22),transparent 18%) top / 100% 100% no-repeat}.card-button:not(:disabled):hover .card,.card-button:not(:disabled):focus-visible .card{transform:translateY(-3px)}.card__corner{position:absolute;left:.6rem;display:grid;justify-items:center;gap:.12rem}.card__corner--top{top:.55rem}.card__corner--bottom{right:.6rem;bottom:.55rem;left:auto;transform:rotate(180deg)}.card__rank{font-family:var(--font-display);font-size:1.1rem;line-height:1;color:var(--ink-strong)}.card__rank--red{color:#b13d3d}.card__rank--black{color:var(--ink-strong)}.card__pip{position:absolute;inset:0;display:grid;place-items:center}.card__pip-icon{width:min(44%,68px);height:auto;filter:drop-shadow(0 6px 14px rgba(31,26,23,.08))}.card__suit{width:18px;height:18px}.card__suit--red{fill:#c54444}.card__suit--black{fill:#1f1a17}.card__back{position:absolute;inset:.2rem;border-radius:16px;overflow:hidden;background:linear-gradient(180deg,#0f4c43f0,#123f38fa)}.card__back-svg{width:100%;height:100%;display:block}.bid-grid button.selected{border-color:var(--accent);background:#0f5c4d1f}.bid-grid button:disabled,.hand-grid button:disabled{opacity:.45;cursor:not-allowed}.bid-submit-button{width:100%;margin-top:.35rem}.scoreboard{width:100%;border-collapse:collapse}.scoreboard th,.scoreboard td{padding:.75rem;border-bottom:1px solid var(--line);text-align:left}.trick-cards{display:flex;flex-wrap:wrap;gap:.5rem}.trick-play{display:flex;flex-direction:column;gap:.35rem}.trick-play__player{color:var(--ink-soft);font-size:.9rem}.trick-meta__value--red{color:#b13d3d}.trick-meta__value--black{color:var(--ink-strong)}.trick-card,.trick-empty-state{display:inline-flex;min-width:88px;justify-content:center;padding:.65rem .75rem;border-radius:14px;background:#0f5c4d14;color:var(--accent-strong)}.trick-card--red{color:#b13d3d;background:#c544441f}.trick-card--black{color:var(--ink-strong);background:#1f1a1714}.active-player{margin:0 0 1rem;color:var(--ink-soft)}.control-row button:disabled{opacity:.45;cursor:not-allowed}.hero-panel{position:relative;overflow:hidden;padding:clamp(1.5rem,5vw,3rem);border:1px solid var(--line);border-radius:var(--radius-lg);background:linear-gradient(135deg,var(--bg-panel) 0%,var(--bg-panel-strong) 100%);box-shadow:var(--shadow-soft)}.hero-panel:after{content:"";position:absolute;right:-8%;top:-20%;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,rgba(15,92,77,.18) 0%,transparent 70%)}.eyebrow{margin:0 0 .5rem;font-size:.78rem;letter-spacing:.24em;text-transform:uppercase;color:var(--accent)}.hero-panel h1{margin:0;font-family:var(--font-display);font-size:clamp(2.2rem,5vw,4.4rem);line-height:.95}.lede{max-width:48rem;margin:1rem 0 0;color:var(--ink-soft);font-size:1.02rem;line-height:1.7}.status-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-md);margin-top:1.25rem}.status-card{padding:1rem 1.1rem;border-radius:var(--radius-md);border:1px solid var(--line);background:#fff9f0b8;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.label{display:block;margin-bottom:.35rem;font-size:.78rem;color:var(--ink-soft);letter-spacing:.08em;text-transform:uppercase}.status-card strong{font-size:1.2rem}@media(max-width:700px){.app-topbar__inner{flex-direction:column;align-items:stretch}.language-switcher{min-width:0;width:100%}.status-grid,.lobby-grid,.table-grid{grid-template-columns:1fr}.panel-header{flex-direction:column;align-items:flex-start}}