/* ph-daily-6g — daily 6G lesson card
   Palette locked to pranabhazarika.com: navy #012550, crimson #911010, teal #0B6B60 */

.ph6g {
  --navy: #012550;
  --crimson: #911010;
  --teal: #0B6B60;
  --ink: #14181d;
  --muted: #5b6672;
  --line: #dfe3e8;
  --paper: #ffffff;
  --wash: #f6f7f9;

  box-sizing: border-box;
  max-width: 680px;
  margin: 0 auto;
  padding: 0 4px;
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}
.ph6g *, .ph6g *::before, .ph6g *::after { box-sizing: inherit; }

/* ---------- masthead ---------- */
.ph6g__mast {
  text-align: center;
  padding: 4px 0 26px;
  margin-bottom: 26px;
  border-bottom: 1px solid var(--line);
}
.ph6g__mark {
  font-family: Georgia, "Iowan Old Style", "Times New Roman", serif;
  font-weight: 700;
  font-size: clamp(34px, 9vw, 52px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--navy);
  margin: 0;
}
.ph6g__mark em {
  font-style: normal;
  color: var(--crimson);
}
.ph6g__tag {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.5;
  color: var(--muted);
  letter-spacing: 0.01em;
}
.ph6g__pill {
  display: inline-block;
  margin-top: 16px;
  padding: 5px 12px;
  border: 1px solid var(--teal);
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--teal);
}

/* ---------- header rail ---------- */
.ph6g__rail {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--navy);
  margin-bottom: 22px;
}
.ph6g__day {
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--navy);
}
.ph6g__vol {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  text-align: right;
}

/* ---------- lesson ---------- */
.ph6g__title {
  font-family: Georgia, "Iowan Old Style", "Times New Roman", serif;
  font-size: clamp(25px, 6.4vw, 33px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  font-weight: 700;
  color: var(--navy);
  margin: 0 0 6px;
}
.ph6g__meta {
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 18px;
}
.ph6g__body p { margin: 0 0 15px; }
.ph6g__body p:last-child { margin-bottom: 0; }

/* ---------- question ---------- */
.ph6g__q {
  margin-top: 26px;
  padding: 20px 18px;
  background: var(--wash);
  border-left: 3px solid var(--crimson);
  border-radius: 2px;
}
.ph6g__qlabel {
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--crimson);
  margin: 0 0 8px;
}
.ph6g__qtext {
  font-family: Georgia, "Iowan Old Style", serif;
  font-size: 19px;
  line-height: 1.4;
  color: var(--navy);
  margin: 0 0 16px;
}
.ph6g__opts { display: grid; gap: 10px; }
.ph6g__opt {
  display: block;
  width: 100%;
  text-align: left;
  font: inherit;
  font-size: 16px;
  line-height: 1.45;
  padding: 13px 15px;
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 3px;
  cursor: pointer;
  transition: border-color .15s ease, background .15s ease, transform .08s ease;
}
.ph6g__opt:hover:not(:disabled) { border-color: var(--navy); }
.ph6g__opt:active:not(:disabled) { transform: translateY(1px); }
.ph6g__opt:focus-visible { outline: 2px solid var(--navy); outline-offset: 2px; }
.ph6g__opt:disabled { cursor: default; }
.ph6g__opt.is-right {
  border-color: var(--teal);
  border-width: 2px;
  background: #eef6f4;
  font-weight: 600;
}
.ph6g__opt.is-wrong {
  border-color: var(--crimson);
  background: #fbf0f0;
  text-decoration: line-through;
  text-decoration-color: rgba(145,16,16,.45);
}
.ph6g__opt.is-dim { opacity: .5; }

/* ---------- verdict ---------- */
.ph6g__verdict { margin-top: 16px; }
.ph6g__verdict[hidden] { display: none; }
.ph6g__vhead {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0 0 6px;
}
.ph6g__vhead.right { color: var(--teal); }
.ph6g__vhead.wrong { color: var(--crimson); }
.ph6g__explain { margin: 0; font-size: 15.5px; line-height: 1.55; color: var(--muted); }

/* ---------- streak panel ---------- */
.ph6g__streak {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}
.ph6g__streak[hidden] { display: none; }

.ph6g__nums { display: flex; gap: 26px; margin-bottom: 18px; }
.ph6g__num strong {
  display: block;
  font-family: Georgia, serif;
  font-size: 30px;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--navy);
}
.ph6g__num.hot strong { color: var(--crimson); }
.ph6g__num span {
  display: block;
  margin-top: 4px;
  font-size: 11px;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--muted);
}

/* signature element: seven-day link strip */
.ph6g__weeklabel {
  font-size: 11px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 8px;
}
.ph6g__week { display: flex; gap: 6px; align-items: flex-end; height: 34px; }
.ph6g__cell {
  flex: 1;
  border-radius: 2px;
  background: var(--line);
  height: 30%;
  transition: height .3s ease, background .3s ease;
}
.ph6g__cell.hit { background: var(--teal); height: 100%; }
.ph6g__cell.miss-answer { background: var(--navy); height: 66%; }
.ph6g__cell.today { box-shadow: 0 0 0 2px var(--paper), 0 0 0 3px var(--crimson); }

/* ---------- badges ---------- */
.ph6g__badges { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 18px; }
.ph6g__badge {
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
  background: var(--paper);
}
.ph6g__badge.earned {
  border-color: var(--navy);
  background: var(--navy);
  color: #fff;
}
.ph6g__badge.fresh { animation: ph6g-pop .45s ease; }
@keyframes ph6g-pop {
  0%   { transform: scale(.8); opacity: 0; }
  60%  { transform: scale(1.06); }
  100% { transform: scale(1); opacity: 1; }
}

.ph6g__award {
  margin-top: 16px;
  padding: 12px 14px;
  border: 1px solid var(--crimson);
  border-radius: 3px;
  background: #fbf0f0;
  font-size: 14.5px;
  color: var(--crimson);
  font-weight: 600;
}
.ph6g__award[hidden] { display: none; }

/* ---------- footer note ---------- */
.ph6g__foot {
  margin-top: 20px;
  font-size: 13px;
  color: var(--muted);
}
.ph6g__foot a { color: var(--navy); }

/* ---------- preview-only controls ---------- */
.ph6g__nav {
  display: flex;
  gap: 8px;
  align-items: center;
  justify-content: center;
  margin: 26px 0 0;
  padding-top: 18px;
  border-top: 1px dashed var(--line);
}
.ph6g__nav button {
  font: inherit;
  font-size: 14px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  background: var(--paper);
  border-radius: 3px;
  cursor: pointer;
  color: var(--navy);
}
.ph6g__nav button:hover { border-color: var(--navy); }
.ph6g__nav span { font-size: 13px; color: var(--muted); font-variant-numeric: tabular-nums; }

@media (prefers-reduced-motion: reduce) {
  .ph6g *, .ph6g *::before, .ph6g *::after {
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
  }
}

@media (max-width: 480px) {
  .ph6g { font-size: 16.5px; }
  .ph6g__q { padding: 16px 14px; }
  .ph6g__nums { gap: 18px; }
  .ph6g__num strong { font-size: 26px; }
}

.ph6g__tz {
  margin-left: 7px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--muted);
  vertical-align: 1px;
}