:root {
  --ink: #15231f;
  --forest: #183a31;
  --forest-2: #235c4d;
  --mint: #a8d8c7;
  --paper: #f4f0e6;
  --paper-deep: #e8e0d0;
  --gold: #c69135;
  --red: #a53d32;
  --muted: #66746e;
  --line: rgba(21, 35, 31, .13);
  --shadow: 0 18px 55px rgba(31, 42, 37, .12);
}

* { box-sizing: border-box; }
html { background: var(--paper); color: var(--ink); }
body {
  margin: 0;
  min-height: 100vh;
  font-family: "Microsoft YaHei UI", "PingFang SC", sans-serif;
  background:
    radial-gradient(circle at 8% 5%, rgba(168, 216, 199, .42), transparent 27rem),
    radial-gradient(circle at 93% 12%, rgba(198, 145, 53, .16), transparent 24rem),
    var(--paper);
}

button, input { font: inherit; }
button { cursor: pointer; }
.hidden { display: none !important; }
.grain {
  position: fixed; inset: 0; pointer-events: none; opacity: .22; z-index: 10;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.08'/%3E%3C/svg%3E");
}

.shell { width: min(1180px, calc(100% - 32px)); margin: 0 auto; padding: 28px 0 64px; }
.masthead { display: flex; align-items: center; gap: 14px; margin-bottom: 28px; }
.brand-mark {
  width: 52px; height: 52px; border-radius: 17px; display: grid; place-items: center;
  color: #fff; background: var(--forest); font: 700 24px/1 "STKaiti", "KaiTi", serif;
  box-shadow: 0 9px 24px rgba(24, 58, 49, .22);
}
.brand-copy { flex: 1; }
.brand-copy p, .brand-copy h1 { margin: 0; }
.brand-copy p { font-size: 12px; letter-spacing: .18em; color: var(--forest-2); }
.brand-copy h1 { font: 700 24px/1.25 "STSong", "Songti SC", serif; letter-spacing: .04em; }

.quiet-button, .text-button {
  border: 0; background: transparent; color: var(--forest-2); font-weight: 700; padding: 10px 4px;
}
.quiet-button:hover, .text-button:hover { color: var(--gold); }

.login-panel {
  width: min(460px, 100%); margin: 12vh auto 0; padding: 42px;
  border: 1px solid var(--line); border-radius: 32px; background: rgba(255,255,255,.66);
  box-shadow: var(--shadow); backdrop-filter: blur(14px);
}
.login-seal { display: inline-flex; padding: 7px 11px; border-radius: 999px; background: var(--mint); color: var(--forest); font-weight: 800; font-size: 13px; }
.login-panel h2 { margin: 18px 0 8px; font: 700 34px/1.1 "STSong", "Songti SC", serif; }
.login-panel p { color: var(--muted); }
label { color: var(--muted); font-size: 13px; font-weight: 700; }
input {
  width: 100%; border: 1px solid var(--line); background: rgba(255,255,255,.8); color: var(--ink);
  border-radius: 14px; min-height: 48px; padding: 0 14px; outline: none;
}
input:focus { border-color: var(--forest-2); box-shadow: 0 0 0 4px rgba(35, 92, 77, .1); }
.login-panel input { margin: 8px 0 14px; }
.form-error { min-height: 20px; color: var(--red) !important; }

.waiting-panel {
  width: min(640px, 100%); margin: 11vh auto 0; padding: 46px; text-align: center;
  border: 1px solid var(--line); border-radius: 32px; background: rgba(255,255,255,.7);
  box-shadow: var(--shadow);
}
.waiting-orbit {
  width: 88px; height: 88px; margin: 0 auto 22px; border-radius: 50%; display: grid; place-items: center;
  color: #fff; background: var(--forest); font: 700 34px/1 "STKaiti", "KaiTi", serif;
  box-shadow: 0 0 0 12px rgba(168,216,199,.35), 0 0 0 25px rgba(168,216,199,.14);
}
.waiting-panel h2 { margin: 10px 0; font: 700 34px/1.15 "STSong", "Songti SC", serif; }
.waiting-panel > p:not(.section-kicker) { color: var(--muted); line-height: 1.65; }
.waiting-panel .primary-button { margin-top: 14px; }

.primary-button, .danger-button, .outline-button, .ink-button {
  border-radius: 14px; min-height: 46px; padding: 0 18px; font-weight: 800; border: 1px solid transparent;
  transition: transform .16s ease, box-shadow .16s ease, background .16s ease;
}
.primary-button { background: var(--forest-2); color: #fff; box-shadow: 0 8px 18px rgba(35,92,77,.18); }
.danger-button { background: var(--red); color: #fff; box-shadow: 0 8px 18px rgba(165,61,50,.18); }
.outline-button { background: transparent; color: var(--forest); border-color: rgba(24,58,49,.34); }
.ink-button { background: var(--ink); color: #fff; }
.primary-button:hover, .danger-button:hover, .outline-button:hover, .ink-button:hover { transform: translateY(-2px); }
.full-button { width: 100%; margin-top: 20px; }

.status-board {
  position: relative; overflow: hidden; color: #fff; background: var(--forest); border-radius: 30px;
  padding: 34px; box-shadow: var(--shadow); display: grid; grid-template-columns: 1fr auto; gap: 26px;
}
.status-board::after {
  content: ""; position: absolute; width: 360px; height: 360px; border: 1px solid rgba(255,255,255,.12);
  border-radius: 50%; right: -130px; top: -190px; box-shadow: 0 0 0 45px rgba(255,255,255,.035), 0 0 0 90px rgba(255,255,255,.025);
}
.eyebrow-row { position: relative; z-index: 1; display: flex; gap: 9px; align-items: center; font-size: 13px; color: var(--mint); font-weight: 700; letter-spacing: .08em; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: #d4b06b; box-shadow: 0 0 0 4px rgba(212,176,107,.15); }
.status-dot.online { background: #77d9b7; box-shadow: 0 0 0 4px rgba(119,217,183,.15); }
.status-main h2 { margin: 14px 0 8px; font: 700 40px/1.08 "STSong", "Songti SC", serif; }
.status-main p { margin: 0; color: rgba(255,255,255,.68); }
.clock-face { position: relative; z-index: 1; text-align: right; align-self: center; }
.clock-face span { color: var(--mint); font-size: 12px; letter-spacing: .1em; }
.clock-face strong { display: block; margin-top: 4px; font: 700 42px/1 "Consolas", monospace; letter-spacing: -.04em; }
.metric-ribbon { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(3,1fr); border-top: 1px solid rgba(255,255,255,.15); padding-top: 22px; position: relative; z-index: 1; }
.metric-ribbon article + article { border-left: 1px solid rgba(255,255,255,.15); padding-left: 24px; }
.metric-ribbon span { display: block; color: rgba(255,255,255,.56); font-size: 12px; }
.metric-ribbon strong { display: block; margin-top: 7px; font-size: 22px; }

.command-bar { margin: 18px 0; border: 1px solid var(--line); background: rgba(255,255,255,.6); border-radius: 22px; padding: 18px 22px; display: flex; align-items: center; gap: 24px; }
.command-bar h2, .section-kicker { margin: 0; }
.command-bar h2 { font: 700 23px/1.2 "STSong", "Songti SC", serif; }
.section-kicker { color: var(--gold); font-size: 11px; letter-spacing: .16em; text-transform: uppercase; font-weight: 800; }
.command-actions { margin-left: auto; display: flex; gap: 9px; flex-wrap: wrap; }

.content-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 18px; align-items: start; }
.paper-card { border: 1px solid var(--line); border-radius: 25px; padding: 24px; background: rgba(255,255,255,.7); box-shadow: 0 8px 28px rgba(31,42,37,.05); }
.card-heading { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; margin-bottom: 22px; }
.card-heading h2 { margin: 4px 0 0; font: 700 27px/1.2 "STSong", "Songti SC", serif; }
.state-pill { padding: 7px 10px; border-radius: 999px; font-size: 12px; color: var(--forest); background: var(--mint); font-weight: 800; white-space: nowrap; }

.quick-points { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 12px 0; }
.quick-points button, .pause-options button { min-height: 44px; border: 1px solid var(--line); border-radius: 13px; background: var(--paper); color: var(--ink); font-weight: 800; }
.quick-points button:nth-child(-n+3) { color: var(--forest-2); background: rgba(168,216,199,.35); }
.quick-points button:nth-child(n+4) { color: var(--red); background: rgba(165,61,50,.08); }
.custom-points { display: grid; grid-template-columns: 1fr auto; gap: 8px; }
.ledger-list, .session-list { margin-top: 24px; border-top: 1px solid var(--line); }
.ledger-entry, .session-entry { display: grid; grid-template-columns: auto 1fr auto; gap: 12px; align-items: start; padding: 14px 0; border-bottom: 1px solid var(--line); }
.ledger-delta { min-width: 48px; font-weight: 900; color: var(--forest-2); }
.ledger-delta.negative { color: var(--red); }
.entry-copy strong, .entry-copy small { display: block; }
.entry-copy small, .entry-time { color: var(--muted); font-size: 12px; }

.rule-sentence { border-left: 3px solid var(--gold); padding: 10px 0 10px 14px; color: var(--muted); line-height: 1.55; }
.day-rows { display: grid; gap: 8px; margin: 18px 0; }
.day-row { display: grid; grid-template-columns: 52px 44px 1fr auto 1fr; align-items: center; gap: 8px; }
.day-row > span:first-child { font-weight: 800; }
.day-row input[type="checkbox"] { width: 20px; min-height: 20px; accent-color: var(--forest-2); justify-self: center; }
.day-row input[type="time"] { min-height: 40px; padding: 0 8px; }
.day-row.disabled { opacity: .48; }
.rule-numbers { display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; }
.rule-numbers label { display: grid; grid-template-columns: 1fr auto; gap: 4px 8px; align-items: center; }
.rule-numbers label input { grid-column: 1 / 2; }
.rule-numbers label span { grid-column: 2; grid-row: 2; }

.device-list { margin: 0; }
.device-list div { display: flex; justify-content: space-between; gap: 20px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.device-list dt { color: var(--muted); }
.device-list dd { margin: 0; font-weight: 800; text-align: right; overflow-wrap: anywhere; }
.update-note { margin-top: 18px; padding: 16px; border-radius: 16px; background: var(--paper); }
.update-note p { margin: 6px 0 0; color: var(--muted); font-size: 13px; line-height: 1.5; }

dialog { border: 0; border-radius: 26px; padding: 0; color: var(--ink); background: var(--paper); box-shadow: var(--shadow); }
dialog::backdrop { background: rgba(9,19,16,.64); backdrop-filter: blur(5px); }
.dialog-card { width: min(440px, calc(100vw - 32px)); padding: 28px; }
.dialog-card h2 { font: 700 28px/1.2 "STSong", "Songti SC", serif; margin: 8px 0; }
.dialog-card > p:not(.section-kicker) { color: var(--muted); }
.pause-options { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; margin: 22px 0 12px; }
.toast { position: fixed; left: 50%; bottom: 26px; transform: translate(-50%, 20px); opacity: 0; pointer-events: none; background: var(--ink); color: #fff; border-radius: 13px; padding: 12px 16px; transition: .2s ease; z-index: 30; box-shadow: var(--shadow); }
.toast.visible { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 800px) {
  .shell { width: min(100% - 22px, 680px); padding-top: 18px; }
  .content-grid { grid-template-columns: 1fr; }
  .status-board { padding: 25px; }
  .status-main h2 { font-size: 34px; }
  .clock-face strong { font-size: 34px; }
  .command-bar { align-items: flex-start; flex-direction: column; }
  .command-actions { margin-left: 0; width: 100%; display: grid; grid-template-columns: 1fr 1fr; }
  .command-actions .danger-button { grid-column: 1 / -1; }
}

@media (max-width: 520px) {
  .status-board { grid-template-columns: 1fr; }
  .clock-face { text-align: left; }
  .metric-ribbon { grid-template-columns: 1fr; gap: 13px; }
  .metric-ribbon article + article { border-left: 0; padding-left: 0; }
  .day-row { grid-template-columns: 44px 34px 1fr; }
  .day-row .dash { display: none; }
  .day-row input[type="time"]:last-child { grid-column: 3; }
  .rule-numbers { grid-template-columns: 1fr; }
  .paper-card { padding: 19px; }
  .login-panel { padding: 28px; }
}

@media (prefers-reduced-motion: no-preference) {
  #dashboard:not(.hidden) > * { animation: settle .45s both; }
  #dashboard:not(.hidden) > *:nth-child(2) { animation-delay: .06s; }
  #dashboard:not(.hidden) > *:nth-child(3) { animation-delay: .12s; }
  @keyframes settle { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
}