/* ============================================================================
   RIZ DAW 工程 — 全新设计
   [2026-09-15] 深色录音棚风格: 多轨卡片、实时电平、拖拽上传
   复用 --ra-* 设计令牌, 但走独立深色面板以区分「音频分轨」
   ============================================================================ */

.daw-root {
    --daw-bg: #0f1420;
    --daw-panel: #161d2c;
    --daw-panel-2: #1d2637;
    --daw-line: #2a3346;
    --daw-ink: #e8edf7;
    --daw-ink-2: #9aa7bd;
    --daw-ink-3: #6b7789;
    --daw-blue: #3b82f6;
    --daw-green: #22c55e;
    --daw-amber: #f59e0b;
    --daw-red: #ef4444;
    --daw-purple: #a855f7;

    background: var(--daw-bg);
    color: var(--daw-ink);
    border-radius: 18px;
    padding: 0;
    overflow: hidden;
    font-family: var(--ra-font-body);
}
.daw-root * { box-sizing: border-box; }

/* ---------- 顶栏 ---------- */
.daw-top {
    display: flex; align-items: center; gap: 12px;
    padding: 16px 18px;
    background: linear-gradient(135deg, #1a2540, #14192a);
    border-bottom: 1px solid var(--daw-line);
}
.daw-back {
    background: rgba(255,255,255,.06); border: 1px solid var(--daw-line);
    color: var(--daw-ink); width: 38px; height: 38px; border-radius: 10px;
    font-size: 18px; cursor: pointer; flex: 0 0 auto;
}
.daw-back:active { transform: scale(.94); }
.daw-top-title { flex: 1; min-width: 0; }
.daw-top-title h2 {
    margin: 0; font-size: 17px; font-weight: 800; letter-spacing: .3px;
    display: flex; align-items: center; gap: 8px;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.daw-top-title p { margin: 2px 0 0; font-size: 11.5px; color: var(--daw-ink-2); }
.daw-top-actions { display: flex; gap: 8px; }

/* ---------- 通用按钮 ---------- */
.daw-btn {
    border: 1px solid var(--daw-line); background: var(--daw-panel-2);
    color: var(--daw-ink); border-radius: 10px; padding: 9px 14px;
    font-size: 13px; font-weight: 700; cursor: pointer; white-space: nowrap;
    display: inline-flex; align-items: center; gap: 6px;
    transition: transform .08s, background .15s;
}
.daw-btn:active { transform: scale(.96); }
.daw-btn-primary { background: linear-gradient(135deg, #7c3aed, #a855f7); border: none; color: #fff; }
.daw-btn-blue { background: linear-gradient(135deg, #2563eb, #3b82f6); border: none; color: #fff; }
.daw-btn-green { background: linear-gradient(135deg, #16a34a, #22c55e); border: none; color: #fff; }
.daw-btn-ghost { background: transparent; }
.daw-btn-danger { background: rgba(239,68,68,.14); border-color: rgba(239,68,68,.35); color: #fca5a5; }
.daw-btn[disabled] { opacity: .45; pointer-events: none; }

/* ---------- 主体 ---------- */
.daw-body { padding: 16px 18px 28px; }

/* ---------- 工程列表 ---------- */
.daw-proj-list { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.daw-proj-card {
    background: var(--daw-panel); border: 1px solid var(--daw-line);
    border-radius: 14px; padding: 16px; cursor: pointer;
    transition: border-color .15s, transform .08s;
    position: relative;
}
.daw-proj-card:hover { border-color: var(--daw-blue); }
.daw-proj-card:active { transform: scale(.985); }
.daw-proj-card h3 { margin: 0 0 6px; font-size: 15px; font-weight: 800; }
.daw-proj-card .daw-meta { font-size: 11.5px; color: var(--daw-ink-2); display: flex; gap: 10px; flex-wrap: wrap; }
.daw-proj-card .daw-chip {
    display: inline-flex; align-items: center; gap: 4px;
    background: rgba(168,85,247,.16); color: #d8b4fe;
    padding: 2px 8px; border-radius: 20px; font-size: 10.5px; font-weight: 700;
}
.daw-proj-del {
    position: absolute; top: 10px; right: 10px; width: 28px; height: 28px;
    border-radius: 8px; border: 1px solid var(--daw-line); background: rgba(0,0,0,.2);
    color: var(--daw-ink-3); cursor: pointer; font-size: 13px;
}
.daw-proj-del:hover { color: #fca5a5; border-color: rgba(239,68,68,.4); }

.daw-empty {
    text-align: center; padding: 46px 20px; color: var(--daw-ink-2);
}
.daw-empty .ico { font-size: 44px; margin-bottom: 10px; opacity: .8; }

/* ---------- 新建工程面板 ---------- */
.daw-newbox {
    background: var(--daw-panel); border: 1px dashed var(--daw-line);
    border-radius: 14px; padding: 18px; margin-bottom: 16px;
}
.daw-field { margin-bottom: 12px; }
.daw-field label { display: block; font-size: 12px; color: var(--daw-ink-2); margin-bottom: 5px; font-weight: 600; }
.daw-input, .daw-select {
    width: 100%; background: var(--daw-bg); border: 1px solid var(--daw-line);
    color: var(--daw-ink); border-radius: 9px; padding: 10px 11px; font-size: 14px;
}
.daw-input:focus, .daw-select:focus { outline: none; border-color: var(--daw-blue); }

/* ---------- 工程工作台 ---------- */
.daw-workspace { display: grid; gap: 16px; }
@media (min-width: 900px) { .daw-workspace { grid-template-columns: 1fr 320px; } }

.daw-tracks { display: grid; gap: 10px; }

.daw-track {
    background: var(--daw-panel); border: 1px solid var(--daw-line);
    border-radius: 12px; padding: 12px 12px 10px; position: relative;
    transition: border-color .15s, opacity .15s;
}
.daw-track.muted { opacity: .5; }
.daw-track.solo { border-color: var(--daw-amber); box-shadow: 0 0 0 1px rgba(245,158,11,.35); }
.daw-track-head { display: flex; align-items: center; gap: 9px; margin-bottom: 9px; }
.daw-track-inst {
    width: 34px; height: 34px; border-radius: 9px; flex: 0 0 auto;
    display: flex; align-items: center; justify-content: center; font-size: 17px;
    background: var(--daw-panel-2);
}
.daw-track-info { flex: 1; min-width: 0; }
.daw-track-name {
    font-size: 14px; font-weight: 700; cursor: text;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.daw-track-sub { font-size: 10.5px; color: var(--daw-ink-3); display: flex; gap: 6px; align-items: center; }
.daw-badge { padding: 1px 6px; border-radius: 20px; font-size: 9.5px; font-weight: 700; }
.daw-badge-auto { background: rgba(59,130,246,.18); color: #93c5fd; }
.daw-badge-up { background: rgba(34,197,94,.18); color: #86efac; }

.daw-track-ctrl { display: flex; align-items: center; gap: 6px; }
.daw-ico {
    width: 30px; height: 30px; border-radius: 8px; border: 1px solid var(--daw-line);
    background: var(--daw-panel-2); color: var(--daw-ink-2); cursor: pointer;
    font-size: 12px; font-weight: 800; display: flex; align-items: center; justify-content: center;
}
.daw-ico.m { background: var(--daw-red); border-color: var(--daw-red); color: #fff; }
.daw-ico.s { background: var(--daw-amber); border-color: var(--daw-amber); color: #111; }
.daw-ico.play { color: var(--daw-green); }

.daw-track-row { display: flex; align-items: center; gap: 10px; }
.daw-vol { flex: 1; }
.daw-vol input[type=range] {
    width: 100%; accent-color: var(--daw-blue); height: 18px;
}
.daw-off {
    width: 74px; background: var(--daw-bg); border: 1px solid var(--daw-line);
    color: var(--daw-ink); border-radius: 7px; padding: 4px 6px; font-size: 12px; text-align: center;
}
.daw-track-rm {
    position: absolute; top: 8px; right: 8px; width: 22px; height: 22px;
    border-radius: 6px; border: none; background: transparent; color: var(--daw-ink-3);
    cursor: pointer; font-size: 12px;
}
.daw-track-rm:hover { color: #fca5a5; }

/* ---------- 上传区 ---------- */
.daw-drop {
    border: 2px dashed var(--daw-line); border-radius: 12px;
    padding: 22px; text-align: center; color: var(--daw-ink-2); cursor: pointer;
    transition: border-color .15s, background .15s;
}
.daw-drop:hover, .daw-drop.drag { border-color: var(--daw-green); background: rgba(34,197,94,.06); }
.daw-drop .ico { font-size: 30px; margin-bottom: 6px; }
.daw-drop small { display: block; margin-top: 4px; color: var(--daw-ink-3); }

/* ---------- 侧栏 ---------- */
.daw-side { display: grid; gap: 14px; align-content: start; }
.daw-card {
    background: var(--daw-panel); border: 1px solid var(--daw-line);
    border-radius: 12px; padding: 14px;
}
.daw-card h4 { margin: 0 0 10px; font-size: 13px; font-weight: 800; color: var(--daw-ink); display: flex; align-items: center; gap: 6px; }

/* 传输控制 */
.daw-transport { display: flex; align-items: center; gap: 10px; }
.daw-play-btn {
    width: 52px; height: 52px; border-radius: 50%; border: none; flex: 0 0 auto;
    background: linear-gradient(135deg, #16a34a, #22c55e); color: #fff;
    font-size: 20px; cursor: pointer; box-shadow: 0 6px 18px -6px rgba(34,197,94,.6);
}
.daw-play-btn:active { transform: scale(.94); }
.daw-time { font-family: var(--ra-font-mono); font-size: 13px; color: var(--daw-ink-2); }
.daw-seek {
    width: 100%; accent-color: var(--daw-blue); margin-top: 10px;
}

/* 电平 */
.daw-meter { display: flex; gap: 3px; align-items: flex-end; height: 26px; margin-top: 8px; }
.daw-meter i { flex: 1; background: var(--daw-green); border-radius: 2px; height: 20%; transition: height .08s; }
.daw-meter i:nth-child(n+5) { background: var(--daw-amber); }
.daw-meter i:nth-child(n+7) { background: var(--daw-red); }

/* 融合导出 */
.daw-export-note { font-size: 11.5px; color: var(--daw-ink-3); margin: 8px 0 0; line-height: 1.5; }
.daw-result {
    margin-top: 10px; padding: 12px; border-radius: 10px;
    background: rgba(34,197,94,.1); border: 1px solid rgba(34,197,94,.3);
}
.daw-result a { color: #86efac; font-weight: 700; word-break: break-all; }

/* toast */
.daw-toast {
    position: fixed; left: 50%; bottom: 40px; transform: translateX(-50%);
    background: #111827; color: #fff; padding: 11px 18px; border-radius: 10px;
    font-size: 13px; font-weight: 600; z-index: 99999; box-shadow: 0 8px 30px rgba(0,0,0,.4);
    max-width: 90vw;
}
.daw-toast.err { background: #7f1d1d; }
.daw-toast.ok { background: #14532d; }

/* loading */
.daw-loading { text-align: center; padding: 40px; color: var(--daw-ink-2); }
.daw-spin {
    width: 34px; height: 34px; margin: 0 auto 12px; border-radius: 50%;
    border: 3px solid var(--daw-line); border-top-color: var(--daw-blue);
    animation: dawspin .8s linear infinite;
}
@keyframes dawspin { to { transform: rotate(360deg); } }

/* 上传进度 */
.daw-up-wrap { margin-top: 10px; }
.daw-up-bar { height: 6px; border-radius: 4px; background: var(--daw-panel-2); overflow: hidden; }
.daw-up-bar > i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, #22c55e, #4ade80); transition: width .15s; }