/* ========================================================================
 * Beer Distribution Game — Mobile-First CSS
 * ======================================================================== */

/* ── Design Tokens ──────────────────────────────────────────────────── */
:root {
  --clr-bg: #f0f4f8;
  --clr-surface: #fff;
  --clr-text: #1a2a3a;
  --clr-muted: #64748b;
  --clr-border: #e2e8f0;
  --clr-primary: #2563eb;
  --clr-primary-dark: #1d4ed8;
  --clr-success: #16a34a;
  --clr-warning: #d97706;
  --clr-danger: #dc2626;
  --clr-online: #16a34a;
  --clr-offline: #dc2626;
  --clr-reconnecting: #d97706;

  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;

  --radius-sm: 6px;
  --radius-md: 10px;

  --font-base: clamp(14px, 3.5vw, 16px);
  --font-lg: clamp(18px, 5vw, 24px);
  --font-xl: clamp(28px, 8vw, 48px);

  --shadow-sm: 0 1px 3px rgba(0,0,0,.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,.1);

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ── Reset ──────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: var(--font-base); -webkit-text-size-adjust: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--clr-bg); color: var(--clr-text); line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
input, select, button { font: inherit; color: inherit; }
button { cursor: pointer; border: none; border-radius: var(--radius-sm); }
table { border-collapse: collapse; width: 100%; }

/* ── Connection Bar ─────────────────────────────────────────────────── */
.conn-bar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 3px 8px; font-size: 12px; text-align: center; color: #fff;
  transition: background .3s, opacity .3s;
}
.conn-online { background: var(--clr-online); opacity: 0; }
.conn-reconnecting { background: var(--clr-reconnecting); opacity: 1; }
.conn-offline { background: var(--clr-offline); opacity: 1; }

/* ── Container ──────────────────────────────────────────────────────── */
.container { max-width: 800px; margin: 0 auto; padding: var(--space-md); padding-top: 24px; }

/* ── App Header ─────────────────────────────────────────────────────── */
.app-header { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: var(--space-sm); margin-bottom: var(--space-md); }
.app-header h1 { font-size: var(--font-lg); font-weight: 700; color: var(--clr-primary-dark); }
.user-bar { font-size: 13px; color: var(--clr-muted); }
.user-bar .sep { margin: 0 6px; color: var(--clr-border); }
.toolbar { display: flex; gap: var(--space-sm); flex-wrap: wrap; }

/* ── Badge ──────────────────────────────────────────────────────────── */
.badge { font-size: 11px; background: var(--clr-primary); color: #fff; padding: 1px 6px; border-radius: 4px; vertical-align: middle; }

/* ── Status ─────────────────────────────────────────────────────────── */
.status { font-size: 14px; color: var(--clr-muted); margin-bottom: var(--space-md); }

/* ── Week Info ──────────────────────────────────────────────────────── */
.week-info { text-align: center; margin-bottom: var(--space-md); }
.week-num { font-size: var(--font-lg); font-weight: 700; color: var(--clr-primary); }

/* ── Panel ──────────────────────────────────────────────────────────── */
.panel { background: var(--clr-surface); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); margin-bottom: var(--space-md); overflow: hidden; }
.panel-head { background: var(--clr-primary-dark); color: #fff; padding: var(--space-sm) var(--space-md); font-weight: 600; font-size: 14px; }
.panel-body { padding: var(--space-md); }

/* ── Table ──────────────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.table th, .table td { padding: var(--space-sm) var(--space-md); text-align: left; font-size: 13px; border-bottom: 1px solid var(--clr-border); white-space: nowrap; }
.table th { background: #f8fafc; font-weight: 600; color: var(--clr-muted); text-transform: uppercase; font-size: 11px; }
.table tr.active { background: #eff6ff; }
.table tr.warn { background: #fef2f2; }

/* ── Board ──────────────────────────────────────────────────────────── */
.board { display: flex; flex-direction: column; gap: var(--space-md); margin-bottom: var(--space-md); }
.board-panel { background: var(--clr-surface); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); overflow: hidden; }
.board-panel .panel-head { padding: var(--space-sm) var(--space-md); font-weight: 600; font-size: 14px; }
.board-downstream .panel-head { background: var(--clr-success); }
.board-center .panel-head { background: var(--clr-primary); }
.board-upstream .panel-head { background: var(--clr-warning); }

.panel-duo { display: flex; gap: var(--space-md); }
.panel-duo > div { flex: 1; text-align: center; }
.panel-trio { display: flex; gap: var(--space-md); }
.panel-trio > div { flex: 1; text-align: center; }
.panel-body strong { display: block; font-size: 12px; color: var(--clr-muted); margin-bottom: 4px; }
.big-num { display: block; font-size: var(--font-xl); font-weight: 800; font-variant-numeric: tabular-nums; }
.mid-num { display: block; font-size: var(--font-lg); font-weight: 700; font-variant-numeric: tabular-nums; color: var(--clr-danger); }
.num-with-delta { display: inline-flex; align-items: baseline; justify-content: center; gap: 6px; }
.num-with-delta .big-num { display: inline-block; }
.delta-num { font-size: 16px; font-weight: 700; font-variant-numeric: tabular-nums; color: var(--clr-muted); }
.delta-num.delta-neg { color: var(--clr-danger); }
.delta-num.delta-pos { color: var(--clr-success); }

/* ── Flow Cards ─────────────────────────────────────────────────────── */
.flow-area { margin-bottom: var(--space-md); }
.flow-card {
  display: flex; align-items: center; gap: var(--space-md);
  background: var(--clr-surface); border-radius: var(--radius-md);
  box-shadow: var(--shadow-md); padding: var(--space-md); margin-bottom: var(--space-sm);
  animation: slideIn .35s var(--ease-out);
}
@keyframes slideIn { from { opacity: 0; transform: translateY(-8px); } }
.flow-icon { font-size: 28px; flex-shrink: 0; }
.flow-body { flex: 1; min-width: 0; }
.flow-body strong { display: block; font-size: 14px; margin-bottom: var(--space-sm); }

.flow-waiting { border-left: 4px solid var(--clr-warning); }

/* Flow state machine */
.flow-state { display: none; align-items: flex-start; gap: var(--space-md); width: 100%; }
.flow-card[data-flow-state="lobby"]          .flow-state[data-state="lobby"]          { display: flex; }
.flow-card[data-flow-state="waiting-turn"]   .flow-state[data-state="waiting-turn"]   { display: flex; }
.flow-card[data-flow-state="waiting-others"] .flow-state[data-state="waiting-others"] { display: flex; }
.flow-card[data-flow-state="completed"]      .flow-state[data-state="completed"]      { display: flex; }
.flow-card[data-flow-state="ended"]          .flow-state[data-state="ended"]          { display: flex; }
.flow-card[data-flow-state="lobby"]          { border-left-color: var(--clr-border); }
.flow-card[data-flow-state="waiting-turn"]   { border-left-color: var(--clr-primary); }
.flow-card[data-flow-state="waiting-others"] { border-left-color: var(--clr-warning); }
.flow-card[data-flow-state="completed"]      { border-left-color: var(--clr-success); }
.flow-card[data-flow-state="ended"]          { border-left-color: var(--clr-muted); }
.flow-result-rows { margin: var(--space-sm) 0; display: flex; flex-direction: column; gap: 4px; }
.flow-result-row  { display: flex; justify-content: space-between; font-size: 13px; }
.flow-result-label { color: var(--clr-muted); }
.flow-result-val   { font-weight: 600; }
.flow-sub { font-size: 13px; color: var(--clr-muted); margin-top: 4px; display: block; }
.flow-delivery { border-left: 4px solid var(--clr-warning); }
.flow-fulfill { border-left: 4px solid var(--clr-success); }
.flow-order { border-left: 4px solid var(--clr-primary); }

.order-form { display: flex; gap: var(--space-sm); }
.order-form .input-sm { flex: 1; }

/* ── Analytics ──────────────────────────────────────────────────────── */
.analytics { background: var(--clr-surface); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); padding: var(--space-md); margin-bottom: var(--space-md); }
.analytics-head { font-weight: 700; font-size: 15px; margin-bottom: var(--space-md); }
.analytics-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-md); margin-bottom: var(--space-md); }
.analytics-card { background: #f8fafc; border-radius: var(--radius-sm); padding: var(--space-sm); }
.alabel { font-size: 11px; color: var(--clr-muted); margin-bottom: 4px; font-weight: 600; }
.avalue { font-size: 14px; }
.bar-chart { display: flex; align-items: flex-end; gap: 2px; height: 60px; padding: 2px; background: #fff; border-radius: 4px; }

/* ── Progress ───────────────────────────────────────────────────────── */
.progress-wrap { display: flex; align-items: center; gap: var(--space-sm); }
.progress-track { flex: 1; height: 8px; background: #e2e8f0; border-radius: 4px; overflow: hidden; }
.progress-fill { height: 100%; background: var(--clr-primary); border-radius: 4px; transition: width .5s var(--ease-out); width: 0%; }
.progress-label { font-size: 12px; color: var(--clr-muted); white-space: nowrap; }

/* ── Tags ───────────────────────────────────────────────────────────── */
.tag { display: inline-block; font-size: 12px; padding: 2px 8px; border-radius: 4px; font-weight: 600; }
.tag-green { background: #dcfce7; color: #166534; }
.tag-yellow { background: #fef9c3; color: #854d0e; }
.tag-red { background: #fee2e2; color: #991b1b; }
.tag-blue { background: #dbeafe; color: #1e40af; }
.tag-gray { background: #f1f5f9; color: #475569; }
.tag-agent { background: #e0e7ff; color: #4338ca; font-size: 0.75rem; }
.tag-disc { background: #fee2e2; color: #991b1b; font-size: 0.75rem; }

/* ── Info button ─────────────────────────────────────────────────────── */
.btn-info-sm {
  display: inline-flex; align-items: center; justify-content: center;
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--clr-border); color: var(--clr-muted);
  font-size: 11px; font-weight: 700; border: none; cursor: pointer;
  vertical-align: middle; line-height: 1;
}
.btn-info-sm:hover { background: var(--clr-primary); color: #fff; }

/* ── Buttons ────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 10px 18px; font-size: 14px; font-weight: 600; border-radius: var(--radius-sm);
  min-height: 44px; transition: background .15s, opacity .15s;
}
.btn:active { opacity: .8; }
.btn[disabled] { opacity: .5; pointer-events: none; }
.btn-primary { background: var(--clr-primary); color: #fff; }
.btn-primary:active { background: var(--clr-primary-dark); }
.btn-outline { background: transparent; color: var(--clr-text); border: 1.5px solid var(--clr-border); }
.btn-outline:active { background: #f1f5f9; }
.btn-danger { background: var(--clr-danger); color: #fff; }
.btn-sm { padding: 6px 12px; font-size: 13px; min-height: 36px; }
.btn-block { width: 100%; }
.btn-act { background: var(--clr-warning); color: #fff; flex-shrink: 0; }
.btn-act:active { background: #b45309; }
.btn.disabled { pointer-events: none; opacity: 0.5; }

/* ── Forms ──────────────────────────────────────────────────────────── */
.input {
  display: block; width: 100%; padding: 10px 14px; font-size: 16px;
  border: 1.5px solid var(--clr-border); border-radius: var(--radius-sm);
  background: var(--clr-surface); min-height: 44px;
  -webkit-appearance: none; appearance: none;
}
.input:focus { outline: none; border-color: var(--clr-primary); box-shadow: 0 0 0 3px rgba(37,99,235,.15); }
.input-sm { padding: 8px 12px; font-size: 14px; min-height: 36px; }
.label { display: block; font-size: 13px; font-weight: 600; color: var(--clr-muted); margin-bottom: 4px; }
.form-row { margin-bottom: var(--space-md); }
.hint { font-size: 13px; color: var(--clr-muted); margin-bottom: var(--space-sm); }

/* ── Alert ──────────────────────────────────────────────────────────── */
.alert { padding: var(--space-sm) var(--space-md); border-radius: var(--radius-sm); font-size: 13px; margin-bottom: var(--space-sm); }
.alert-err { background: #fee2e2; color: #991b1b; }

/* ── Modal ──────────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0; z-index: 999;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0,0,0,.5);
}
.modal-overlay[hidden] { display: none; }
.modal-box {
  background: var(--clr-surface); border-radius: var(--radius-md);
  box-shadow: var(--shadow-md); width: 90vw; max-width: 380px;
  max-height: 90vh; overflow-y: auto;
}
.modal-header { padding: var(--space-md); border-bottom: 1px solid var(--clr-border); }
.modal-header h3 { font-size: 17px; }
.modal-body { padding: var(--space-md); }
.modal-footer { padding: var(--space-md); border-top: 1px solid var(--clr-border); }

/* ── Toast ──────────────────────────────────────────────────────────── */
.toast {
  position: fixed; top: 60px; left: 50%; transform: translateX(-50%); z-index: 1100;
  background: rgba(0,0,0,.85); color: #fff; padding: 10px 20px; border-radius: 8px;
  font-size: 14px; animation: toastIn .3s var(--ease-out);
}
@keyframes toastIn { from { opacity: 0; transform: translateX(-50%) translateY(-10px); } }

/* ── Charts ─────────────────────────────────────────────────────────── */
.chart-controls { display: flex; gap: var(--space-sm); margin-bottom: var(--space-md); }
.chart-controls .input-sm { width: auto; }
#chartCanvas { width: 100%; max-width: 680px; height: auto; }

/* ── Desktop overrides ──────────────────────────────────────────────── */
@media (min-width: 768px) {
  .container { padding: 40px 24px; }
  .board { flex-direction: row; }
  .board-panel { flex: 1; }
  .board-center { flex: 2; }
  .analytics-grid { grid-template-columns: repeat(4, 1fr); }
  .conn-bar { padding: 4px 12px; font-size: 13px; }
}

/* ── Admin PC Layout ────────────────────────────────────────────────── */
.admin-container {
  max-width: 1800px;
  margin: 0 auto;
  padding: 20px 32px;
}

.admin-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
}
.admin-header h1 {
  font-size: 20px;
  font-weight: 700;
  color: var(--clr-primary-dark);
  white-space: nowrap;
}
.admin-meta {
  flex: 1;
  min-width: 0;
}
.admin-meta .status {
  margin: 0;
  font-size: 13px;
}
.admin-meta .alert {
  margin: 4px 0 0;
}

.admin-settings-bar {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  background: var(--clr-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 10px var(--space-md);
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
}
.admin-settings-bar .label {
  margin: 0;
  white-space: nowrap;
}
.admin-settings-bar .hint {
  margin: 0;
  font-size: 12px;
}

.admin-layout {
  display: grid;
  grid-template-columns: minmax(700px, 3fr) minmax(380px, 2fr);
  gap: var(--space-md);
  align-items: start;
}

.admin-left,
.admin-right {
  min-width: 0;
}

.admin-right #charts {
  position: sticky;
  top: 20px;
}

.admin-right #chartCanvas {
  width: 100%;
  height: auto;
  display: block;
}

.table .num-col {
  text-align: right;
}
.table td.num-col {
  font-variant-numeric: tabular-nums;
}

@media (max-width: 1100px) {
  .admin-layout {
    grid-template-columns: 1fr;
  }
  .admin-right #charts {
    position: static;
  }
}