/* Brief Buddy — warm editorial Swiss. One accent, hairline rules, serif
   masthead over SF body. Shared by index.html and login.html. */

:root {
  --paper: #f6f4ef;
  --card: #fdfcfa;
  --ink: #17150f;
  --muted: #7c766a;
  --rule: #e4e0d6;
  --rule-strong: #17150f;
  --accent: #c8442a;
  --accent-soft: rgba(200, 68, 42, 0.08);
  --serif: "New York", ui-serif, Georgia, "Times New Roman", serif;
  --sans: -apple-system, "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: "SF Mono", ui-monospace, Menlo, monospace;
}
:root[data-theme="dark"] {
  --paper: #121110;
  --card: #1a1917;
  --ink: #ece9e2;
  --muted: #948e82;
  --rule: #2a2825;
  --rule-strong: #ece9e2;
  --accent: #ff7350;
  --accent-soft: rgba(255, 115, 80, 0.1);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #121110;
    --card: #1a1917;
    --ink: #ece9e2;
    --muted: #948e82;
    --rule: #2a2825;
    --rule-strong: #ece9e2;
    --accent: #ff7350;
    --accent-soft: rgba(255, 115, 80, 0.1);
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
}
body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  padding: env(safe-area-inset-top) env(safe-area-inset-right)
    env(safe-area-inset-bottom) env(safe-area-inset-left);
}

.shell {
  max-width: 700px;
  margin: 0 auto;
  padding: 0 22px;
}

/* ---------- Top bar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  -webkit-backdrop-filter: saturate(1.2) blur(14px);
  backdrop-filter: saturate(1.2) blur(14px);
  border-bottom: 1px solid var(--rule);
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: inherit; }
.logo { width: 26px; height: 26px; display: block; border-radius: 6px; }
.logo .tile { fill: var(--rule-strong); }
.logo .mark { fill: var(--paper); }
.brand-name {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: 0.01em;
}
.actions { display: flex; align-items: center; gap: 2px; }
.icon-btn {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  background: transparent;
  color: var(--ink);
  border: none;
  cursor: pointer;
  padding: 0;
  border-radius: 8px;
  transition: background 0.15s ease, color 0.15s ease;
}
.icon-btn svg { width: 19px; height: 19px; }
.icon-btn:hover { background: var(--accent-soft); color: var(--accent); }
.icon-btn:active { opacity: 0.6; }
.icon-btn.spinning svg { animation: spin 0.7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Masthead ---------- */
.masthead { padding: 34px 0 26px; }
.kicker {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 10px;
}
.kicker .dot { color: var(--accent); }
.day {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(40px, 9vw, 54px);
  line-height: 1.02;
  letter-spacing: -0.015em;
  margin: 0;
}
.date {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: 21px;
  color: var(--muted);
  margin: 6px 0 0;
}

/* ---------- Issue chips ---------- */
.issues {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 4px 22px 18px;
  margin: 0 -22px;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.issues::-webkit-scrollbar { display: none; }
.chip {
  flex: 0 0 auto;
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 9px 14px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: var(--card);
  color: var(--ink);
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}
.chip .chip-kind {
  color: var(--muted);
  font-weight: 500;
  margin-right: 6px;
  text-transform: uppercase;
  font-size: 10px;
  letter-spacing: 0.1em;
}
.chip:hover { border-color: var(--muted); }
.chip.active {
  background: var(--rule-strong);
  border-color: var(--rule-strong);
  color: var(--paper);
}
.chip.active .chip-kind { color: color-mix(in srgb, var(--paper) 65%, transparent); }

/* ---------- Article ---------- */
.article {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 14px;
  padding: 26px 26px 30px;
  margin-bottom: 28px;
}
.article-head { margin-bottom: 18px; }
.tag {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
  background: var(--accent-soft);
  padding: 4px 9px;
  border-radius: 999px;
  margin-bottom: 12px;
}
.article-title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 27px;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0;
}
.article-sub {
  font-size: 13px;
  color: var(--muted);
  margin: 8px 0 0;
}

.brief-body { font-size: 15.5px; }
.brief-body > :first-child { margin-top: 0; }
.brief-body h1,
.brief-body h2 {
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 2em 0 0.7em;
  padding-top: 1.1em;
  border-top: 1px solid var(--rule);
}
.brief-body h3 {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 600;
  margin: 1.4em 0 0.4em;
}
.brief-body p, .brief-body li { line-height: 1.62; }
.brief-body li { margin: 0.35em 0; }
.brief-body ul, .brief-body ol { padding-left: 20px; }
.brief-body strong { font-weight: 650; }
.brief-body a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--accent) 40%, transparent);
  text-underline-offset: 3px;
}
.brief-body code {
  font-family: var(--mono);
  font-size: 13px;
  background: var(--accent-soft);
  border-radius: 4px;
  padding: 1px 5px;
}
.brief-body pre {
  font-family: var(--mono);
  font-size: 13px;
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 12px 14px;
  overflow-x: auto;
}
.brief-body pre code { background: none; padding: 0; }
.brief-body blockquote {
  margin: 1.1em 0;
  padding: 2px 0 2px 16px;
  border-left: 2px solid var(--accent);
  color: var(--muted);
  font-style: italic;
}
.brief-body hr { border: 0; border-top: 1px solid var(--rule); margin: 1.6em 0; }
.brief-body table { border-collapse: collapse; width: 100%; font-size: 14px; }
.brief-body th, .brief-body td {
  text-align: left;
  padding: 7px 10px;
  border-bottom: 1px solid var(--rule);
}
.brief-body th {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.empty { color: var(--muted); font-size: 14px; padding: 8px 0; }

/* ---------- Pomodoro ---------- */
.pomo {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 14px;
  padding: 30px 24px 28px;
  margin-bottom: 36px;
  text-align: center;
}
.pomo-eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 20px;
}
.pomo-ring-wrap { position: relative; width: 216px; height: 216px; margin: 0 auto 20px; }
.pomo-ring { width: 216px; height: 216px; transform: rotate(-90deg); }
.pomo-ring .track { stroke: var(--rule); }
.pomo-ring .fill {
  stroke: var(--accent);
  transition: stroke-dashoffset 0.3s linear, stroke 0.3s ease;
}
.pomo-ring .fill.break-phase { stroke: var(--muted); }
.pomo-readout {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 2px;
}
.pomo-time {
  font-family: var(--mono);
  font-weight: 300;
  font-size: 46px;
  letter-spacing: -0.03em;
  line-height: 1;
  margin: 0;
  font-variant-numeric: tabular-nums;
}
.pomo-phase {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 6px 0 0;
}
.pomo-phase.break-phase { color: var(--muted); }
.pomo-actions { display: flex; justify-content: center; gap: 10px; }
.btn {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 11px 22px;
  min-width: 104px;
  border-radius: 999px;
  cursor: pointer;
  border: 1px solid var(--rule-strong);
  background: var(--rule-strong);
  color: var(--paper);
  transition: opacity 0.15s ease;
}
.btn.secondary { background: transparent; color: var(--ink); border-color: var(--rule); }
.btn.secondary:hover { border-color: var(--muted); }
.btn:active { opacity: 0.65; }

/* ---------- Footer ---------- */
.foot {
  border-top: 1px solid var(--rule);
  padding: 18px 0 34px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--muted);
}
.foot button {
  font: inherit;
  color: var(--muted);
  background: none;
  border: none;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
  padding: 0;
}
.foot button:hover { color: var(--accent); }

/* ---------- Login ---------- */
.login-wrap {
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: 24px;
}
.login-card { width: 100%; max-width: 340px; text-align: center; }
.login-card .logo { width: 52px; height: 52px; margin: 0 auto 18px; border-radius: 12px; }
.login-title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 30px;
  margin: 0 0 6px;
}
.login-sub { color: var(--muted); font-size: 14px; margin: 0 0 26px; }
.login-form { display: flex; flex-direction: column; gap: 10px; }
.login-form input[type="password"] {
  font: inherit;
  font-size: 16px;
  padding: 13px 16px;
  border: 1px solid var(--rule);
  border-radius: 10px;
  background: var(--card);
  color: var(--ink);
  text-align: center;
  outline: none;
  transition: border-color 0.15s ease;
}
.login-form input[type="password"]:focus { border-color: var(--accent); }
.login-form .btn { width: 100%; padding: 13px 22px; }
.login-error {
  color: var(--accent);
  font-size: 13px;
  min-height: 18px;
  margin: 4px 0 0;
}
.shake { animation: shake 0.35s ease; }
@keyframes shake {
  20% { transform: translateX(-7px); }
  45% { transform: translateX(6px); }
  70% { transform: translateX(-4px); }
  90% { transform: translateX(2px); }
}