:root {
  --bg: #f5f6f8; --surface: #ffffff; --text: #1a2233; --muted: #667085; --border: #dfe3ea;
  --brand: #14213a; --accent: #c8862a; --user: #14213a; --user-text: #ffffff; --bot: #ffffff;
  --danger: #b42318; --ok: #1a7f4b;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1524; --surface: #172037; --text: #e8ecf4; --muted: #93a0b8; --border: #2a3652;
    --brand: #0a1020; --accent: #e0a24a; --user: #2d4a7c; --user-text: #ffffff; --bot: #172037;
    --danger: #ff8a80; --ok: #5ed39a;
  }
}
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  background: var(--bg); color: var(--text);
  font: 16px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  overscroll-behavior: none;
}
#app { height: 100dvh; display: flex; flex-direction: column; max-width: 820px; margin: 0 auto; background: var(--bg); }
header {
  display: flex; align-items: center; gap: 8px; background: var(--brand); color: #fff;
  padding: calc(env(safe-area-inset-top) + 8px) 12px 8px;
}
header h1 { flex: 1; margin: 0; font-size: 17px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
header button { background: transparent; border: 0; color: #fff; font-size: 22px; min-width: 44px; min-height: 44px; }
header .pill { font-size: 14px; border: 1px solid rgba(255,255,255,.4); border-radius: 999px; padding: 0 12px; min-width: 0; min-height: 34px; }
header .pill.warn { border-color: var(--accent); color: var(--accent); }
header .pill.blocked { border-color: #ff8a80; color: #ff8a80; }

#messages { flex: 1; overflow-y: auto; padding: 14px 12px; -webkit-overflow-scrolling: touch; }
.empty { text-align: center; color: var(--muted); margin-top: 20vh; padding: 0 24px; }
.msg { max-width: 88%; margin: 0 0 12px; padding: 10px 14px; border-radius: 16px; overflow-wrap: anywhere; word-break: break-word; }
.msg.user { margin-left: auto; background: var(--user); color: var(--user-text); border-bottom-right-radius: 4px; white-space: pre-wrap; }
.msg.assistant { background: var(--bot); border: 1px solid var(--border); border-bottom-left-radius: 4px; }
.msg.error { background: transparent; border: 1px solid var(--danger); color: var(--danger); }
.msg .tag { display: block; font-size: 12px; color: var(--accent); margin-bottom: 4px; }
.msg p { margin: 0 0 .6em; } .msg p:last-child { margin-bottom: 0; }
.msg ul, .msg ol { margin: 0 0 .6em; padding-left: 1.3em; }
.msg pre { background: rgba(127,127,127,.15); padding: 8px 10px; border-radius: 8px; overflow-x: auto; font-size: 14px; }
.msg code { background: rgba(127,127,127,.15); padding: 1px 4px; border-radius: 4px; font-size: .92em; }
.msg pre code { background: none; padding: 0; }

#composer { background: var(--surface); border-top: 1px solid var(--border); padding: 8px 10px calc(env(safe-area-inset-bottom) + 8px); }
#composer .row { display: flex; align-items: flex-end; gap: 8px; }
#composer .row + .row { margin-top: 6px; }
#input {
  flex: 1; resize: none; max-height: 140px; border: 1px solid var(--border); border-radius: 20px;
  padding: 10px 14px; font: inherit; font-size: 16px; /* 16px prevents iOS zoom-on-focus */
  background: var(--bg); color: var(--text);
}
#sendBtn { width: 44px; height: 44px; border-radius: 50%; border: 0; background: var(--accent); color: #fff; font-size: 20px; }
#sendBtn:disabled { opacity: .45; }
.chip { border: 1px solid var(--border); background: transparent; color: var(--muted); border-radius: 999px; padding: 4px 12px; font-size: 13px; min-height: 30px; }
.chip[aria-pressed="true"] { border-color: var(--accent); color: var(--accent); font-weight: 600; }
.muted { color: var(--muted); font-size: 13px; }

#scrim { position: fixed; inset: 0; background: rgba(0,0,0,.45); z-index: 10; }
#scrim[hidden] { display: none; }
#drawer {
  position: fixed; top: 0; bottom: 0; left: 0; width: min(86vw, 330px); z-index: 11; background: var(--surface);
  transform: translateX(-100%); transition: transform .2s; display: flex; flex-direction: column;
  padding: calc(env(safe-area-inset-top) + 12px) 12px calc(env(safe-area-inset-bottom) + 12px);
}
#drawer.open { transform: none; }
.primary { background: var(--accent); color: #fff; border: 0; border-radius: 12px; padding: 12px; font-size: 16px; font-weight: 600; }
#convList { list-style: none; margin: 12px 0; padding: 0; overflow-y: auto; flex: 1; }
#convList li { display: flex; align-items: center; border-radius: 10px; }
#convList li.active { background: var(--bg); }
#convList .t { flex: 1; text-align: left; background: none; border: 0; color: var(--text); padding: 12px 8px; font-size: 15px; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
#convList .x { background: none; border: 0; color: var(--muted); font-size: 18px; min-width: 40px; min-height: 40px; }
#usagePanel { border-top: 1px solid var(--border); padding-top: 10px; }
#usagePanel h2 { font-size: 14px; margin: 0 0 8px; }
.bar { height: 8px; background: var(--bg); border-radius: 99px; overflow: hidden; }
#barFill { height: 100%; width: 0; background: var(--ok); transition: width .3s; }
#byModel { list-style: none; padding: 0; margin: 6px 0 0; }

.navlink { display: block; margin-top: 10px; padding: 12px; text-align: center; border: 1px solid var(--border); border-radius: 12px; color: var(--text); text-decoration: none; }
.memnote { font-size: 13px; color: var(--muted); border-left: 3px solid var(--accent); padding: 4px 10px; margin: -4px 0 12px 6px; max-width: 88%; overflow-wrap: anywhere; }
.memnote .bad { color: var(--danger); }
.memnote a { color: var(--accent); display: inline-block; margin-top: 2px; }

/* memory page */
.page { height: 100dvh; overflow-y: auto; max-width: 820px; margin: 0 auto; }
.page header a { color: #fff; text-decoration: none; font-size: 22px; min-width: 44px; min-height: 44px; display: inline-flex; align-items: center; justify-content: center; }
.toolbar { display: flex; gap: 8px; padding: 10px 12px; flex-wrap: wrap; }
.toolbar input, .toolbar select, .card textarea, .card input, .addbox textarea, .addbox input, .addbox select {
  font: inherit; font-size: 16px; padding: 9px 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); color: var(--text); min-width: 0;
}
.toolbar input { flex: 1; }
.addbox { margin: 0 12px 10px; padding: 10px; background: var(--surface); border: 1px solid var(--border); border-radius: 14px; display: grid; gap: 8px; }
.addbox summary { cursor: pointer; font-weight: 600; min-height: 32px; }
.addbox .two { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.card { margin: 0 12px 10px; padding: 12px; background: var(--surface); border: 1px solid var(--border); border-radius: 14px; }
.card .meta { font-size: 12px; color: var(--muted); display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 4px; }
.card .meta .cat { color: var(--accent); font-weight: 600; text-transform: uppercase; letter-spacing: .03em; }
.card .text { overflow-wrap: anywhere; }
.card .actions { display: flex; gap: 8px; margin-top: 8px; flex-wrap: wrap; }
.card textarea { width: 100%; }
.btn { border: 1px solid var(--border); background: transparent; color: var(--text); border-radius: 10px; padding: 8px 14px; min-height: 38px; font: inherit; font-size: 14px; }
.btn.danger { color: var(--danger); border-color: var(--danger); }
.btn.go { background: var(--accent); color: #fff; border-color: var(--accent); }
.hist { margin-top: 8px; font-size: 13px; color: var(--muted); border-top: 1px dashed var(--border); padding-top: 6px; }
.hist div { margin: 4px 0; }
.err { color: var(--danger); font-size: 14px; padding: 0 12px 8px; }
.note { color: var(--muted); text-align: center; padding: 24px; }

/* tasks, reminders, alerts */
header button { position: relative; }
.badge { position: absolute; top: 4px; right: 2px; min-width: 18px; height: 18px; padding: 0 5px; border-radius: 9px; background: #d92d20; color: #fff; font-size: 11px; line-height: 18px; text-align: center; font-weight: 700; }
.alerts:empty { display: none; }
.alerts { padding: 8px 12px 0; display: grid; gap: 8px; }
.alert { background: var(--surface); border: 1px solid var(--accent); border-left-width: 5px; border-radius: 12px; padding: 10px 12px; }
.alert .atext { overflow-wrap: anywhere; }
.alert .arow { display: flex; gap: 8px; margin-top: 8px; flex-wrap: wrap; }
h2.sec { font-size: 13px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); margin: 18px 14px 8px; }
.cat.overdue { color: var(--danger); }
.addbox input[type=date], .addbox input[type=datetime-local] { width: 100%; }

/* dashboard */
.dash { max-width: 1000px; }
.dash header h1 { flex: 1; }
.dash header .pill { color: #fff; text-decoration: none; font-size: 14px; border: 1px solid rgba(255,255,255,.4); border-radius: 999px; padding: 6px 12px; }
.hero { padding: 16px 14px 4px; display: grid; gap: 12px; }
.greet { font-size: 24px; font-weight: 700; line-height: 1.2; }
.ask { display: flex; gap: 8px; }
.ask input { flex: 1; min-width: 0; font: inherit; font-size: 16px; padding: 12px 16px; border: 1px solid var(--border); border-radius: 999px; background: var(--surface); color: var(--text); }
.ask button { width: 46px; height: 46px; border-radius: 50%; border: 0; background: var(--accent); color: #fff; font-size: 20px; }
.tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; padding: 12px 14px 4px; }
.tile { position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; min-height: 84px; background: var(--surface); border: 1px solid var(--border); border-radius: 16px; color: var(--text); text-decoration: none; }
.tile:active { transform: scale(.98); }
.tile .ti { font-size: 26px; line-height: 1; }
.tile .tl { font-weight: 600; font-size: 15px; }
.tb { position: absolute; top: 8px; right: 10px; min-width: 22px; height: 22px; padding: 0 6px; border-radius: 11px; background: var(--accent); color: #fff; font-size: 12px; line-height: 22px; text-align: center; font-weight: 700; }
.tb.muted-badge { background: var(--border); color: var(--text); }
.wgrid { display: grid; grid-template-columns: 1fr; gap: 0; padding-top: 10px; }
@media (min-width: 760px) {
  .wgrid { grid-template-columns: 1fr 1fr; column-gap: 0; align-items: start; }
  .hero { grid-template-columns: 1fr 1.2fr; align-items: end; }
}
.wcard { margin: 0 14px 12px; }
.wcard.attention { border-color: var(--accent); border-left-width: 5px; }
.wcard.werr { opacity: .7; }
.wt { font-size: 13px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); margin: 0 0 8px; }
.wrow { display: flex; align-items: center; gap: 10px; padding: 9px 0; border-top: 1px solid var(--border); }
.wrow:first-of-type, .wt + .wrow, .stats + .wrow { border-top: 0; }
.wrow.link { color: var(--text); text-decoration: none; }
.wrow .rmain { flex: 1; min-width: 0; }
.wrow .rt { overflow-wrap: anywhere; }
.wrow .rs { font-size: 13px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.wrow .rs.when { flex: none; }
.wrow .racts { display: flex; gap: 6px; flex: none; }
.wrow.overdue .rs { color: var(--danger); }
.btn.sm { padding: 4px 12px; min-height: 34px; font-size: 13px; }
.wempty { color: var(--muted); padding: 6px 0; }
.more { display: inline-block; margin-top: 8px; color: var(--accent); font-size: 14px; text-decoration: none; font-weight: 600; }
.stats { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 6px; font-size: 14px; color: var(--muted); }
.stat b { color: var(--text); font-size: 20px; }
.stat.bad b { color: var(--danger); }
.big { font-size: 28px; font-weight: 700; margin-bottom: 8px; }
.big .of { font-size: 14px; font-weight: 400; color: var(--muted); }
.fill { height: 100%; background: var(--ok); transition: width .3s; }
.fill.warn { background: var(--accent); } .fill.blocked { background: var(--danger); }
.wcard .bar { margin-bottom: 10px; }
.wnote { margin: 4px 0 6px; font-size: 13px; color: var(--accent); } .wnote.bad { color: var(--danger); }
.mrow { display: flex; justify-content: space-between; gap: 10px; padding: 5px 0; font-size: 13px; color: var(--muted); }
.mrow .ok { color: var(--ok); }
.skeleton { color: var(--muted); margin: 0 14px; }

/* fix: long single-line text must not stretch the grid wider than the screen */
.wgrid { grid-template-columns: minmax(0, 1fr); }
@media (min-width: 760px) { .wgrid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); } }
.wgrid > *, .wcard, .wrow, .rmain { min-width: 0; }
.dash { overflow-x: hidden; }
.wcard { overflow: hidden; }

/* sign-in and security pages */
.authpage { min-height: 100dvh; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 24px 16px; gap: 8px; }
.authpage h1 { margin: 0 0 8px; font-size: 22px; }
.authpage .logo { border-radius: 16px; }
.authcard { width: 100%; max-width: 380px; margin: 0; display: grid; gap: 12px; }
.authcard h2 { margin: 0; font-size: 18px; }
.authcard label, .card label { display: grid; gap: 4px; font-size: 14px; color: var(--muted); margin-bottom: 8px; }
.authcard input, .card input:not([type=checkbox]) { font: inherit; font-size: 16px; padding: 10px 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--bg); color: var(--text); min-width: 0; width: 100%; }
.authpage .err { max-width: 380px; width: 100%; padding: 0; }
.okmsg { color: var(--ok); font-size: 14px; padding: 0 14px 8px; }
.page > .card { margin: 0 14px 12px; }
.codes { background: var(--bg); border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; overflow-x: auto; font-size: 15px; user-select: all; }
.page .card summary { cursor: pointer; padding: 6px 0; }
.page .card .btn { margin-top: 4px; }

/* the HTML "hidden" attribute must always win over component display rules */
[hidden] { display: none !important; }