/* ============================================================
   EVENTIPO — Chief of Staff (AI) styles
   ============================================================ */
.cos {
  display: flex;
  flex-direction: column;
  height: calc(100vh - var(--topbar-h));
  margin: -40px -48px -96px;        /* break out of .page padding */
  padding: 0;
}
.cos-thread, .cos-hero { flex: 1; overflow-y: auto; padding: 36px 48px 24px; }

/* Empty hero */
.cos-hero { display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; }
.cos-hero-title { font-size: 34px; font-weight: 400; color: var(--ink); letter-spacing: -0.02em; }
.cos-hero-sub { font-size: 15.5px; line-height: 1.6; color: var(--ink-3); max-width: 480px; margin: 14px 0 36px; text-wrap: pretty; }
.cos-starters { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; width: 100%; max-width: 620px; }
.cos-starter {
  display: flex; align-items: center; gap: 10px; text-align: left;
  padding: 14px 16px; border-radius: var(--r-md);
  background: var(--bg-surface); border: 1px solid var(--line);
  color: var(--ink-2); font-size: 13px; font-family: var(--sans); cursor: pointer; transition: all .14s;
}
.cos-starter:hover { border-color: var(--gold-line); background: var(--gold-glow); color: var(--ink); }
.cos-starter svg { color: var(--gold); flex-shrink: 0; }

/* Thread */
.cos-thread { display: flex; flex-direction: column; gap: 28px; max-width: 860px; margin: 0 auto; width: 100%; }
.cos-msg { display: flex; }
.cos-msg.user { justify-content: flex-end; }
.cos-bubble {
  background: var(--bg-raised); border: 1px solid var(--line-strong);
  padding: 13px 18px; border-radius: 14px 14px 4px 14px;
  font-size: 14.5px; color: var(--ink); max-width: 70%; line-height: 1.5;
}
.cos-msg.ai { gap: 14px; }
.cos-ai-mark {
  width: 30px; height: 30px; border-radius: 9px; flex-shrink: 0; margin-top: 2px;
  background: linear-gradient(135deg, var(--gold-bright), var(--gold-deep));
  display: flex; align-items: center; justify-content: center; color: #1a1505;
}
.cos-ai-body { flex: 1; min-width: 0; }
.cos-intro { font-size: 17px; line-height: 1.55; color: var(--ink); font-weight: 300; text-wrap: pretty; }
.cos-outro { font-size: 14px; color: var(--ink-2); margin-top: 18px; line-height: 1.5; }

/* Thinking trace */
.cos-thinking { display: flex; flex-direction: column; gap: 9px; padding: 4px 0; }
.cos-think-row { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--ink-3); font-family: var(--mono); animation: riseIn .3s ease both; }
.cos-think-ic { width: 16px; height: 16px; display: flex; align-items: center; justify-content: center; }
.cos-think-ic.done { color: var(--gold); }
.spin { width: 12px; height: 12px; border: 1.5px solid var(--line-strong); border-top-color: var(--gold); border-radius: 99px; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Plan card */
.plan { margin-top: 18px; display: flex; flex-direction: column; gap: 18px; }
.plan-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.plan-tile { background: var(--bg-surface); border: 1px solid var(--line); border-radius: var(--r-md); padding: 16px 18px; }
.plan-tile-name { font-size: 16px; color: var(--ink); margin: 8px 0 6px; }
.plan-tile-why { font-size: 12.5px; line-height: 1.5; color: var(--ink-3); margin-bottom: 12px; text-wrap: pretty; }
.plan-tile-cost { font-size: 18px; color: var(--gold); }

.plan-section { background: var(--bg-surface); border: 1px solid var(--line); border-radius: var(--r-md); padding: 16px 18px; }
.plan-suppliers { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.plan-sup { display: flex; align-items: center; gap: 10px; }
.plan-sup-name { font-size: 13px; color: var(--ink); }
.plan-sup-cat { font-size: 10.5px; color: var(--ink-3); }
.plan-budget { padding: 18px; }
.plan-big { font-size: 24px; font-weight: 500; letter-spacing: -0.02em; }
.plan-lesson { display: flex; gap: 10px; align-items: flex-start; font-size: 13px; line-height: 1.5; color: var(--ink-2); }
.plan-lesson svg { color: var(--gold); flex-shrink: 0; margin-top: 2px; }
.plan-cta { display: flex; gap: 10px; padding-top: 4px; }

/* Compare table */
.cmp { background: var(--bg-surface); border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; }
.cmp-head, .cmp-row { display: grid; grid-template-columns: 1.3fr 1fr 1fr; }
.cmp-head { padding: 14px 18px; border-bottom: 1px solid var(--line); }
.cmp-head span { font-size: 14px; color: var(--ink); }
.cmp-row { padding: 11px 18px; border-bottom: 1px solid var(--line-soft); }
.cmp-row:last-child { border-bottom: 0; }
.cmp-row span { font-size: 13px; color: var(--ink-2); }
.cmp-lab { color: var(--ink-3) !important; font-family: var(--sans) !important; }

/* Budget draft */
.bud-draft { background: var(--bg-surface); border: 1px solid var(--line); border-radius: var(--r-md); padding: 8px 18px; }
.bud-draft-row { display: grid; grid-template-columns: 1.4fr 2fr 80px; align-items: center; gap: 14px; padding: 9px 0; border-bottom: 1px solid var(--line-soft); font-size: 13px; color: var(--ink-2); }
.bud-draft-row:last-child { border-bottom: 0; }
.bud-draft-bar { height: 6px; background: var(--bg-inset); border-radius: 99px; overflow: hidden; }
.bud-draft-bar > span { display: block; height: 100%; background: linear-gradient(90deg, var(--gold-deep), var(--gold)); border-radius: 99px; }
.bud-draft-row .mono { text-align: right; color: var(--ink); }

/* Composer */
.cos-composer { flex-shrink: 0; padding: 16px 48px 22px; border-top: 1px solid var(--line); background: var(--bg-base); }
.cos-input {
  max-width: 860px; margin: 0 auto; display: flex; align-items: center; gap: 12px;
  background: var(--bg-surface); border: 1px solid var(--line-strong);
  border-radius: 12px; padding: 0 8px 0 16px; height: 52px; transition: border-color .14s;
}
.cos-input:focus-within { border-color: var(--gold-line); }
.cos-input > svg { color: var(--gold); flex-shrink: 0; }
.cos-input input { flex: 1; background: transparent; border: 0; outline: 0; color: var(--ink); font-family: var(--sans); font-size: 14.5px; }
.cos-input input::placeholder { color: var(--ink-4); }
.cos-send {
  width: 38px; height: 38px; border-radius: 9px; flex-shrink: 0;
  background: linear-gradient(135deg, var(--gold-bright), var(--gold)); color: #1a1505;
  border: 0; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: all .14s;
}
.cos-send:disabled { background: var(--bg-raised); color: var(--ink-4); cursor: not-allowed; }
.cos-hint { max-width: 860px; margin: 10px auto 0; text-align: center; font-size: 10.5px; color: var(--ink-4); letter-spacing: 0.04em; }