/* =========================================================
   Patches Answer Today
   设计语言：LinkedIn 风格 (#0a66c2 主色 + 干净的卡片化布局)
   ========================================================= */

:root {
  --c-bg: #f4f2ee;             /* LinkedIn 经典米灰背景 */
  --c-surface: #ffffff;
  --c-surface-2: #f8fafc;
  --c-border: #e6e3df;
  --c-border-strong: #d9d6d1;

  --c-text: #181c20;
  --c-text-2: #404549;
  --c-text-3: #6a7177;

  --c-brand: #0a66c2;          /* LinkedIn primary */
  --c-brand-hover: #094a8e;
  --c-brand-soft: #e7f0fa;
  --c-brand-2: #70b5f9;        /* secondary blue */
  --c-accent: #ffb800;         /* 金色点缀 */
  --c-success: #1f9d55;
  --c-warn: #c98a00;
  --c-danger: #b91c1c;

  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;

  --shadow-1: 0 1px 0 rgba(0,0,0,.04), 0 2px 8px rgba(0,0,0,.04);
  --shadow-2: 0 4px 14px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-3: 0 16px 40px rgba(10,102,194,.12), 0 2px 6px rgba(0,0,0,.06);

  --font: "Source Sans 3", -apple-system, BlinkMacSystemFont, "Segoe UI",
          "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
html, body { overflow-x: hidden; }

/* Make sure the HTML [hidden] attribute is never overridden by other rules. */
[hidden] { display: none !important; }
body {
  font-family: var(--font);
  color: var(--c-text);
  background: var(--c-bg);
  background-image:
    radial-gradient(rgba(91, 71, 32, .035) 1px, transparent 1px);
  background-size: 4px 4px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--c-brand); }
img, svg { display: block; max-width: 100%; }
ul { padding: 0; margin: 0; list-style: none; }
button { font: inherit; cursor: pointer; }

.container {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 20px;
}

.muted { color: var(--c-text-3); font-weight: 500; }
.hl { color: var(--c-brand); }

/* =========================
   TOP NAV
   ========================= */
.topnav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(244, 242, 238, .92);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid #d9d3c8;
}
.topnav__inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 68px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: "Newsreader", serif;
  font-weight: 500;
  font-size: 19px;
  letter-spacing: -.005em;
  color: var(--c-text);
}
.brand__logo {
  width: 32px; height: 32px;
  display: inline-grid; place-items: center;
  background: transparent;
  box-shadow: none;
}
.brand__dot { color: var(--patch-A-strong); font-style: italic; }
.brand__muted {
  color: var(--c-text-3);
  font-weight: 400;
  font-style: italic;
}

.nav {
  display: flex; gap: 26px;
  margin-left: 24px;
  flex: 1;
}
.nav a {
  color: var(--c-text-2);
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-weight: 600;
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 6px 0;
  border-bottom: 1px solid transparent;
  transition: color .15s, border-color .15s;
}
.nav a:hover { color: var(--c-text); border-bottom-color: var(--c-text); }

/* =========================
   BUTTONS
   ========================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 2px;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: .01em;
  border: 1px solid transparent;
  transition: transform .08s ease, background .15s, color .15s, border-color .15s;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }

.btn--primary {
  background: var(--c-text);
  color: #fff;
  border-color: var(--c-text);
}
.btn--primary:hover { background: var(--patch-A-strong); border-color: var(--patch-A-strong); color: #fff; }

.btn--secondary {
  background: transparent;
  color: var(--c-text);
  border-color: var(--c-text);
}
.btn--secondary:hover {
  background: var(--c-text);
  color: #fff;
}

.btn--ghost {
  background: transparent;
  color: var(--c-text-2);
  border-color: var(--c-border-strong);
}
.btn--ghost:hover { color: var(--c-text); border-color: var(--c-text); }

.btn--small { padding: 8px 14px; font-size: 13px; }
.btn--lg { padding: 16px 28px; font-size: 15px; }
.btn--block { width: 100%; }

/* =========================
   HERO
   ========================= */
.hero {
  position: relative;
  padding: 56px 0 36px;
  overflow: hidden;
  border-bottom: 1px solid #e8e3da;
}
/* Soft warm wash, only one gradient, very low intensity */
.hero::before {
  content: "";
  position: absolute; inset: -160px -10% auto auto;
  width: 70%; height: 520px;
  background: radial-gradient(60% 60% at 70% 30%, rgba(253, 220, 175, .35), transparent 65%);
  z-index: 0;
  pointer-events: none;
}
/* Oversized backdrop numeral — editorial signature */
.hero::after {
  content: var(--hero-puzzle-num, "66");
  position: absolute;
  right: -2vw; bottom: -3vw;
  font-family: "Newsreader", serif;
  font-style: italic;
  font-weight: 500;
  font-size: 28vw;
  line-height: .85;
  letter-spacing: -.04em;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(184, 121, 35, .14);
  z-index: 0;
  pointer-events: none;
  user-select: none;
}
.hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}
.hero__left {
  display: flex;
  flex-direction: column;
}

/* Dateline — newspaper masthead style */
.hero__dateline {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: "JetBrains Mono", ui-monospace, "SFMono-Regular", monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--c-text-3);
  text-transform: uppercase;
  padding-bottom: 14px;
  border-bottom: 1px solid #d9d3c8;
  margin-bottom: 26px;
  width: 100%;
  max-width: 360px;
}
.hero__dateline .dot-live {
  width: 6px; height: 6px;
  background: var(--patch-A-strong);
  box-shadow: 0 0 0 3px rgba(176,58,50,.16);
}

.dot-live {
  width: 6px; height: 6px;
  border-radius: 999px;
  background: var(--patch-A-strong);
  animation: pulse 1.8s ease-in-out infinite;
  display: inline-block;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(176,58,50,.4); }
  50%      { box-shadow: 0 0 0 6px rgba(176,58,50,0); }
}

/* Hero title — editorial display type */
.hero__title {
  font-family: "Newsreader", "Source Sans 3", var(--font);
  font-size: clamp(28px, 3.4vw, 38px);
  line-height: 1.1;
  margin: 0 0 24px;
  font-weight: 400;
  letter-spacing: -.01em;
  color: var(--c-text-2);
}
.hero__titleBig {
  display: inline-block;
  font-family: "Source Sans 3", var(--font);
  font-size: clamp(64px, 9.5vw, 120px);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: .92;
  color: var(--c-text);
  margin: 4px 0 2px;
  position: relative;
}
.hero__titleBig::after {
  /* small swatch — the "P" of Patches gets a tiny color block accent */
  content: "";
  display: inline-block;
  width: .15em; height: .15em;
  background: var(--patch-A);
  border: 2px solid var(--patch-A-strong);
  border-radius: 4px;
  margin-left: .08em;
  vertical-align: .6em;
}
.hero__titleSub {
  display: block;
  font-family: "Newsreader", serif;
  font-style: italic;
  font-weight: 400;
  font-size: clamp(20px, 2vw, 26px);
  color: var(--c-text-2);
  margin-top: 4px;
}

.hero__desc {
  font-size: 16px;
  color: var(--c-text-2);
  max-width: 50ch;
  margin: 0 0 14px;
  line-height: 1.65;
}
.hero__byline {
  font-family: "Newsreader", serif;
  font-size: 15.5px;
  color: var(--c-text-3);
  max-width: 50ch;
  margin: 0 0 26px;
  line-height: 1.55;
  padding-left: 14px;
  border-left: 2px solid var(--patch-A);
}
.hero__byline em { font-style: italic; }
.hero__cta { display: flex; gap: 14px; flex-wrap: wrap; }

/* Meta row — newsprint dividers between items */
.hero__meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 36px;
  padding-top: 22px;
  border-top: 1px solid #d9d3c8;
  max-width: 480px;
}
.hero__metaItem {
  padding: 0 18px;
  border-left: 1px solid #d9d3c8;
}
.hero__metaItem:first-child { border-left: none; padding-left: 0; }
.hero__metaItem strong {
  display: block;
  font-family: "Newsreader", serif;
  font-size: 28px;
  font-weight: 500;
  letter-spacing: -.02em;
  color: var(--c-text);
  font-variant-numeric: tabular-nums;
}
.hero__metaItem span {
  color: var(--c-text-3);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}

/* ============================
   Mock Video Card (右侧 hero 卡)
   ============================ */
.videoCard {
  background: #ffffff;
  border: 1px solid #e8e3da;
  border-radius: 4px;
  padding: 12px;
  box-shadow: 0 1px 0 rgba(0,0,0,.03);
  position: relative;
}
.videoCard::before {
  /* tiny mono label on top-left, like a magazine figure caption */
  content: "FIG. 01 — WALKTHROUGH";
  position: absolute;
  top: -10px; left: 16px;
  background: var(--c-bg);
  padding: 0 8px;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--c-text-3);
}

/* ----- Video player (YouTube embed) ----- */
.videoCard__player {
  position: relative;
  aspect-ratio: 16 / 10;
  border-radius: 2px;
  overflow: hidden;
  background: #14181d;
}
.videoCard__iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

/* Top-left figure badge */
.videoCard__badge {
  position: absolute;
  top: 12px; left: 12px;
  background: rgba(255,255,255,.92);
  color: #b14b22;
  padding: 5px 10px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .08em;
  z-index: 3;
  box-shadow: 0 4px 12px rgba(0,0,0,.18);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  pointer-events: none;
}
.videoCard__badge::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 999px;
  background: #e3625a;
  box-shadow: 0 0 0 3px rgba(227,98,90,.25);
}

/* =========================
   SECTIONS
   ========================= */
.section {
  padding: 72px 0;
}
.section--alt {
  background: #fff;
  border-top: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
}

/* Pale paper-like section, no extra grain (body already has it) */
.section--paper {
  background: #efe9da;
  border-top: 1px solid #d9d3c8;
  border-bottom: 1px solid #d9d3c8;
  position: relative;
}

/* Small uppercase mono label (editorial kicker above headings) */
.kicker {
  display: inline-block;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  text-transform: uppercase;
  letter-spacing: .18em;
  font-size: 11px;
  font-weight: 700;
  color: var(--c-text-3);
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid #d9d3c8;
}

/* ============================
   "Why" — editorial numbered list (replaces the 6-card features grid)
   ============================ */
.why {
  display: grid;
  grid-template-columns: 0.85fr 1fr;
  gap: 80px;
  align-items: start;
  position: relative;
  z-index: 1;
}
.why__head h2 {
  font-family: "Newsreader", serif;
  font-weight: 500;
  font-size: clamp(28px, 3.4vw, 44px);
  line-height: 1.12;
  letter-spacing: -.015em;
  color: var(--c-text);
  margin: 0;
}
.why__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}
.why__list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 22px;
  padding: 24px 0;
  border-top: 1px solid #d9d3c8;
}
.why__list li:last-child { border-bottom: 1px solid #d9d3c8; }
.why__num {
  font-family: "Newsreader", serif;
  font-style: italic;
  font-weight: 400;
  font-size: 44px;
  line-height: 1;
  color: var(--patch-A-strong);
  letter-spacing: -.02em;
  margin-top: -2px;
}
.why__list h3 {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 700;
  color: var(--c-text);
  letter-spacing: -.005em;
}
.why__list p {
  margin: 0;
  font-size: 15px;
  color: var(--c-text-2);
  line-height: 1.6;
}
.sectionHead { margin-bottom: 36px; }
.sectionHead h2 {
  font-family: "Newsreader", serif;
  font-size: clamp(28px, 3.4vw, 40px);
  margin: 0 0 10px;
  letter-spacing: -.015em;
  font-weight: 500;
  line-height: 1.15;
  color: var(--c-text);
}
.sectionHead h2 em,
.sectionHead--center h2 em { font-style: italic; color: var(--c-text-2); }
.sectionHead p {
  color: var(--c-text-2);
  margin: 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.6;
}
.sectionHead--center { text-align: center; }
.sectionHead--center p { margin: 0 auto; }
.sectionHead--center .kicker { display: block; margin: 0 auto 16px; width: max-content; }

/* =========================
   PATCHES BOARD
   ========================= */
:root {
  /* 4 patches for today's puzzle, matching the official solution palette */
  --patch-A: #e3625a;   /* Red    · 1×5 wide */
  --patch-B: #3eaab1;   /* Teal   · 4×2 tall */
  --patch-C: #d4a338;   /* Yellow · 3×3 square */
  --patch-D: #9c7af0;   /* Purple · 1×3 wide */

  --patch-A-strong: #b03a32;
  --patch-B-strong: #237278;
  --patch-C-strong: #92691a;
  --patch-D-strong: #6647bf;
}

.is-hidden {
  display: none !important;
}

.captureAnswer {
  margin: 0;
  width: 100%;
  text-align: center;
}
.captureAnswer.is-hidden {
  display: none !important;
}
.captureAnswer img {
  display: block;
  width: 100%;
  max-width: 520px;
  height: auto;
  margin: 0 auto;
  border-radius: 12px;
  border: 1px solid var(--c-border, #e5e5e5);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
}

/* ----- Answer Stage (two side-by-side cards) ----- */
.answerStage {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  margin-bottom: 24px;
}
.answerStage--capture {
  grid-template-columns: 1fr;
}
.answerStage--capture .stageCard--practice {
  display: none;
}
.answerStage--capture .stageCard--answer {
  max-width: 640px;
  margin: 0 auto;
  width: 100%;
}
.answerStage--dual .stageCard--practice .boardHolder--screenshot img {
  width: 100%;
  max-width: 400px;
  border-radius: 8px;
}

.stageCard {
  background: #fdebd2;
  border: 1px solid #f0d4a3;
  border-radius: 4px;
  padding: 24px 24px 20px;
  box-shadow: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}
.stageCard::before {
  content: "";
  position: absolute;
  top: 12px; left: 12px; right: 12px;
  height: 1px;
  background: rgba(184, 121, 35, .18);
}

.stageCard__head { text-align: center; margin-bottom: 18px; padding-top: 8px; }
.stageCard__head h3 {
  margin: 0 0 4px;
  font-family: "Newsreader", serif;
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -.01em;
  color: var(--c-text);
}
.stageCard__head p {
  margin: 0;
  font-size: 13px;
  color: var(--c-text-3);
  font-style: italic;
  font-family: "Newsreader", serif;
}

.stageCard__meta {
  margin: 14px 0 0;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--c-text-3);
  text-align: center;
}

.boardHolder { padding: 4px; }

/* Fade-in animation when the solved board appears after Reveal */
.answerPanel > .boardHolder:not([hidden]) {
  animation: revealUp .35s ease-out both;
}
@keyframes revealUp {
  from { opacity: 0; transform: translateY(6px) scale(.98); }
  to   { opacity: 1; transform: none; }
}

.board {
  --cell: 56px;
  --size: 5;
  display: grid;
  grid-template-columns: repeat(var(--size), var(--cell));
  grid-template-rows: repeat(var(--size), var(--cell));
  background: #ffffff;
  border: 1px solid #ead8b8;
  border-radius: 10px;
  padding: 8px;
  width: max-content;
  box-shadow: 0 1px 2px rgba(0,0,0,.04);
}

.cell {
  position: relative;
  display: grid;
  place-items: center;
  background: #ffffff;
  border-right: 1px dashed #ead8b8;
  border-bottom: 1px dashed #ead8b8;
  transition: background .35s ease;
  cursor: pointer;
  user-select: none;
}
.cell:nth-child(5n)        { border-right: none; }
.cell:nth-last-child(-n+5) { border-bottom: none; }

/* Painted state (only meaningful on practice board) */
.board:not(.is-solved) .cell[data-paint] {
  background: var(--paint-color);
}
.cell[data-paint="A"] { --paint-color: var(--patch-A); }
.cell[data-paint="B"] { --paint-color: var(--patch-B); }
.cell[data-paint="C"] { --paint-color: var(--patch-C); }
.cell[data-paint="D"] { --paint-color: var(--patch-D); }
.cell[data-paint="E"] { --paint-color: #f3a0a0; }
.cell[data-paint="F"] { --paint-color: #7fbde8; }
.cell[data-paint="G"] { --paint-color: #f0c674; }

/* Clue cell: number + shape background */
.cell--clue { font-weight: 800; font-size: 17px; color: var(--c-text); cursor: default; }
.cell--clue::before {
  content: "";
  position: absolute; inset: 5px;
  border-radius: 6px;
  background: #ffffff;
  border: 1.5px solid #c9b48a;
  z-index: 0;
}
.cell--clue > span { position: relative; z-index: 1; }

/* Shape variants drawn on ::before */
.cell--square::before {
  background: repeating-linear-gradient(45deg, #ebebe6 0 6px, #f5f4ef 6px 12px);
}
.cell--wide::before {
  background: repeating-linear-gradient(0deg, #ebebe6 0 6px, #f5f4ef 6px 12px);
}
.cell--tall::before {
  background: repeating-linear-gradient(90deg, #ebebe6 0 6px, #f5f4ef 6px 12px);
}
.cell--any::before {
  background:
    repeating-linear-gradient(45deg,  #ebebe6 0 4px, transparent 4px 12px),
    repeating-linear-gradient(-45deg, #ebebe6 0 4px, transparent 4px 12px),
    #f5f4ef;
}

/* Solution coloring */
.cell[data-patch="A"] { --cell-color: var(--patch-A); --cell-edge: var(--patch-A-strong); }
.cell[data-patch="B"] { --cell-color: var(--patch-B); --cell-edge: var(--patch-B-strong); }
.cell[data-patch="C"] { --cell-color: var(--patch-C); --cell-edge: var(--patch-C-strong); }
.cell[data-patch="D"] { --cell-color: var(--patch-D); --cell-edge: var(--patch-D-strong); }

.board.is-solved .cell {
  background: var(--cell-color, #fff);
  /* Keep faint dashed grid visible inside each colored patch */
  border-right-color: rgba(255,255,255,.45);
  border-bottom-color: rgba(255,255,255,.45);
}
.board.is-solved .cell:nth-child(5n)        { border-right: none; }
.board.is-solved .cell:nth-last-child(-n+5) { border-bottom: none; }

/* Hide clue overlay box when solved so the patch color reads clean */
.board.is-solved .cell--clue::before { opacity: 0; }
.board.is-solved .cell--clue          { color: rgba(255,255,255,.92); }

/* Thick colored outline at each patch boundary */
.board.is-solved .cell[data-edge~="t"] { border-top:    3px solid var(--cell-edge); }
.board.is-solved .cell[data-edge~="b"] { border-bottom: 3px solid var(--cell-edge); }
.board.is-solved .cell[data-edge~="l"] { border-left:   3px solid var(--cell-edge); }
.board.is-solved .cell[data-edge~="r"] { border-right:  3px solid var(--cell-edge); }

/* Round the four corners of each patch */
.board.is-solved .cell[data-edge~="t"][data-edge~="l"] { border-top-left-radius:     8px; }
.board.is-solved .cell[data-edge~="t"][data-edge~="r"] { border-top-right-radius:    8px; }
.board.is-solved .cell[data-edge~="b"][data-edge~="l"] { border-bottom-left-radius:  8px; }
.board.is-solved .cell[data-edge~="b"][data-edge~="r"] { border-bottom-right-radius: 8px; }

/* ----- Paint toolbar (swatches + erase/reset) ----- */
.paint {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}
.paint__swatches {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  background: #fff;
  border: 1px solid #ead8b8;
  border-radius: 999px;
}
.sw {
  width: 26px; height: 26px;
  border-radius: 999px;
  background: var(--c);
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform .12s ease, border-color .15s ease, box-shadow .15s;
  padding: 0;
}
.sw:hover { transform: scale(1.08); }
.sw.is-active {
  border-color: var(--e, var(--c-text));
  box-shadow: 0 0 0 2px #ffffff inset;
}
.paint__action {
  background: #fff;
  border: 1px solid #ead8b8;
  padding: 6px 14px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--c-text-2);
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
}
.paint__action:hover { color: var(--c-brand); border-color: var(--c-brand); }
.paint__action.is-active { background: var(--c-text); color: #fff; border-color: var(--c-text); }

/* ----- Answer hidden panel (checkered placeholder) ----- */
.answerPanel {
  width: 100%;
  min-height: 296px;
  display: grid;
  place-items: center;
  padding: 4px 0;
}
.answerPanel__hidden {
  width: 296px;
  height: 296px;
  max-width: 100%;
  border-radius: 12px;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 24px;
  border: 1px dashed #cdb98a;
  background-color: #f6e9cf;
  background-image:
    linear-gradient(45deg, #e6d3aa 25%, transparent 25%),
    linear-gradient(-45deg, #e6d3aa 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #e6d3aa 75%),
    linear-gradient(-45deg, transparent 75%, #e6d3aa 75%);
  background-size: 22px 22px;
  background-position: 0 0, 0 11px, 11px -11px, -11px 0;
  position: relative;
}
.answerPanel__hidden::before {
  content: "";
  position: absolute; inset: 0;
  border-radius: 12px;
  background: rgba(253, 235, 210, .55);
}
.answerPanel__hidden h4,
.answerPanel__hidden p { position: relative; margin: 0; }
.answerPanel__hidden h4 { font-size: 20px; font-weight: 800; margin-bottom: 6px; }
.answerPanel__hidden p { font-size: 13px; }

/* Reveal button center wrap */
.reveal--center {
  background: transparent;
  border: none;
  padding: 0;
  box-shadow: none;
  display: flex;
  justify-content: center;
  margin: 8px 0 24px;
}
.reveal--center #revealBtn {
  min-width: 240px;
  box-shadow: none;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  padding: 16px 32px;
}

/* ----- Inline legend (inside the left card) ----- */
.legend {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--c-border);
  font-size: 13px;
  color: var(--c-text-2);
}
.legend--inline {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed #ead8b8;
  font-size: 12px;
  color: var(--c-text-2);
  font-weight: 600;
}
.legend span { display: inline-flex; align-items: center; gap: 8px; }
.shape {
  display: inline-block;
  width: 20px; height: 20px;
  border-radius: 4px;
  border: 1.5px solid var(--c-border-strong);
}
.shape--square { background: repeating-linear-gradient(45deg, #ebebe6 0 4px, #f5f4ef 4px 8px); }
.shape--wide   { background: repeating-linear-gradient(0deg,  #ebebe6 0 4px, #f5f4ef 4px 8px); }
.shape--tall   { background: repeating-linear-gradient(90deg, #ebebe6 0 4px, #f5f4ef 4px 8px); }
.shape--any    {
  background:
    repeating-linear-gradient(45deg,  #ebebe6 0 3px, transparent 3px 8px),
    repeating-linear-gradient(-45deg, #ebebe6 0 3px, transparent 3px 8px),
    #f5f4ef;
}

.today-error {
  text-align: center;
  padding: 48px 24px;
  font-size: 16px;
}

/* Solve steps */
.solveSteps {
  margin-top: 32px;
  background: transparent;
  border: none;
  border-top: 1px solid #d9d3c8;
  padding: 24px 0 0;
}
.solveSteps h3 {
  margin: 0 0 16px;
  font-family: "Newsreader", serif;
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -.01em;
}
.solveSteps ol {
  padding: 0;
  margin: 0;
  list-style: none;
  display: grid;
  gap: 16px;
  color: var(--c-text);
  font-size: 15.5px;
  line-height: 1.65;
  counter-reset: solveCounter;
}
.solveSteps ol li {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding-bottom: 16px;
  border-bottom: 1px dashed #d9d3c8;
  counter-increment: solveCounter;
}
.solveSteps ol li:last-child { border-bottom: none; padding-bottom: 0; }
.solveSteps ol li::before {
  content: counter(solveCounter, decimal-leading-zero);
  flex: 0 0 40px;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 13px;
  font-weight: 700;
  color: var(--patch-A-strong);
  letter-spacing: .08em;
  padding-top: 4px;
}
.solveSteps__body {
  flex: 1;
  min-width: 0;
}
.solveSteps__body strong {
  display: inline;
  margin-right: 0.25em;
}
.solveSteps code {
  display: inline;
  white-space: nowrap;
  background: var(--c-brand-soft);
  color: var(--c-brand);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 700;
  vertical-align: baseline;
}

/* Reveal */
.reveal {
  background: transparent;
  border: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  text-align: left;
  box-shadow: none;
}
#answerCard {
  margin-top: 12px;
  width: 100%;
  text-align: left;
  background: #fff;
  border: 1px solid #d9d3c8;
  padding: 28px 32px;
  border-radius: 4px;
  animation: fadeUp .4s ease;
}
.answerCard__row {
  display: flex; align-items: center; gap: 12px; margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid #d9d3c8;
}
.badge {
  background: transparent;
  color: var(--patch-A-strong);
  padding: 0;
  border-radius: 0;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.answerCard__title {
  font-family: "Newsreader", serif;
  font-size: 28px;
  margin: 0 0 6px;
  font-weight: 500;
  letter-spacing: -.015em;
  color: var(--c-text);
}
.answerCard__desc { color: var(--c-text-2); margin: 0 0 18px; line-height: 1.65; }
.answerCard__list {
  display: grid;
  gap: 0;
  color: var(--c-text);
  list-style: none;
  padding: 0;
  margin: 0;
}
.answerCard__list li {
  padding: 12px 0;
  background: transparent;
  border-radius: 0;
  border: none;
  border-bottom: 1px dashed #d9d3c8;
  font-size: 14.5px;
}
.answerCard__list li:last-child { border-bottom: none; }
.answerCard__list li strong {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--patch-A-strong);
  display: inline-block;
  min-width: 100px;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* =========================
   COUNTDOWN
   ========================= */
.countdown {
  background: #14181d;
  color: #fff;
  border-top: 1px solid #14181d;
  border-bottom: 1px solid #14181d;
}
.countdown__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 40px 20px;
  flex-wrap: wrap;
  gap: 20px;
}
.countdown h3 {
  margin: 0;
  font-family: "Newsreader", serif;
  font-weight: 500;
  font-size: 26px;
  letter-spacing: -.01em;
}
.countdown p  { margin: 6px 0 0; color: rgba(255,255,255,.55); font-size: 14px; }
.countdown__timer {
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: 0;
}
.countdown__timer > div {
  padding: 6px 22px;
  text-align: center;
  border-left: 1px solid rgba(255,255,255,.18);
}
.countdown__timer > div:first-child { border-left: none; padding-left: 0; }
.countdown__timer strong {
  display: block;
  font-family: "Newsreader", serif;
  font-size: 40px;
  font-weight: 500;
  letter-spacing: -.02em;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}
.countdown__timer span {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10px;
  color: rgba(255,255,255,.5);
  text-transform: uppercase;
  letter-spacing: .14em;
  margin-top: 4px;
  display: inline-block;
}

/* =========================
   ARCHIVE
   ========================= */
.archive {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid #d9d3c8;
  border-left: 1px solid #d9d3c8;
}
.archive__item {
  display: flex;
  flex-direction: column;
  padding: 20px 18px 18px;
  border-right: 1px solid #d9d3c8;
  border-bottom: 1px solid #d9d3c8;
  transition: background .15s;
  position: relative;
  min-height: 140px;
}
.archive__item:hover { background: rgba(184, 121, 35, .06); }
.archive__item > div {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}
.archive__no {
  font-family: "Newsreader", serif;
  font-style: italic;
  font-weight: 500;
  font-size: 28px;
  color: var(--patch-A-strong);
  letter-spacing: -.01em;
  line-height: 1;
  margin-bottom: 10px;
}
.archive__title {
  font-weight: 600;
  color: var(--c-text);
  font-size: 14.5px;
  display: block;
  letter-spacing: -.005em;
  line-height: 1.4;
}
.archive__date {
  color: var(--c-text-3);
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: .04em;
  margin-top: auto;
  padding-top: 10px;
  display: inline-block;
}
/* chip sits in the top-right corner of the cell */
.archive__item .chip {
  position: absolute;
  top: 16px;
  right: 16px;
}
.chip {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 2px;
  background: transparent;
  color: var(--c-text-3);
  border: 1px solid #d9d3c8;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.chip--blue { background: var(--patch-A-strong); color: #fff; border-color: var(--patch-A-strong); }
.chip--warn { background: transparent; color: var(--patch-A-strong); border-color: var(--patch-A-strong); }
.archive__more { text-align: center; margin-top: 24px; }

/* =========================
   ABOUT (bullets)
   ========================= */
.about {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.about__head {
  width: 100%;
  margin-bottom: 40px;
}
.about__head h2 {
  font-family: "Newsreader", serif;
  font-size: clamp(28px, 3.4vw, 40px);
  font-weight: 500;
  letter-spacing: -.015em;
  margin: 0 0 20px;
  line-height: 1.15;
}
.about__lead {
  color: var(--c-text-2);
  margin: 0;
  max-width: 72ch;
  font-size: 16px;
  line-height: 1.7;
}

.bullets {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  list-style: none;
  margin: 0;
  padding: 0;
  width: 100%;
  border-top: 1px solid #d9d3c8;
}
.bullets > li:nth-child(n + 5) {
  grid-column: 1;
  border-top: 1px solid #d9d3c8;
}
.bullets > li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 22px 20px 22px 0;
  font-weight: 500;
  color: var(--c-text);
  font-size: 15px;
  line-height: 1.45;
  min-width: 0;
}
.bullets > li:nth-child(4n) {
  padding-right: 0;
}
.bullets__num {
  font-family: "Newsreader", serif;
  font-style: italic;
  color: var(--patch-A-strong);
  font-weight: 400;
  font-size: clamp(28px, 3vw, 36px);
  flex-shrink: 0;
  min-width: 1.1em;
  line-height: 1;
  letter-spacing: -.02em;
}

/* =========================
   HOW
   ========================= */
.how h2 {
  font-family: "Newsreader", serif;
  font-weight: 500;
  font-size: clamp(28px, 3.4vw, 40px);
  letter-spacing: -.015em;
  margin: 4px 0 32px;
  line-height: 1.15;
}
.how__steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid #d9d3c8;
  border-bottom: 1px solid #d9d3c8;
}
.how__step {
  background: transparent;
  border: none;
  border-left: 1px solid #d9d3c8;
  padding: 28px 22px;
  position: relative;
}
.how__step:first-child { border-left: none; }
.how__num {
  font-family: "Newsreader", serif;
  font-style: italic;
  font-size: 36px;
  font-weight: 400;
  color: var(--patch-A-strong);
  letter-spacing: -.02em;
  margin-bottom: 12px;
  line-height: 1;
}
.how__step h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -.005em;
}
.how__step p  { color: var(--c-text-2); margin: 0; font-size: 15px; line-height: 1.6; }

/* =========================
   FAQ
   ========================= */
.qa {
  background: transparent;
  border: none;
  border-bottom: 1px solid #d9d3c8;
  padding: 0;
  margin: 0;
  transition: none;
}
.qa:first-of-type { border-top: 1px solid #d9d3c8; }
.qa summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 48px 18px 0;
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -.005em;
  position: relative;
  color: var(--c-text);
}
.qa summary:hover { color: var(--patch-A-strong); }
.qa summary::-webkit-details-marker { display: none; }
.qa summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-family: "Newsreader", serif;
  font-size: 24px;
  color: var(--c-text-3);
  font-weight: 400;
  line-height: 1;
}
.qa summary code {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: .9em;
  padding: 0 4px;
  background: rgba(184, 121, 35, .1);
  border-radius: 2px;
}
.qa[open] summary::after { content: "−"; }
.qa p {
  margin: 0 0 20px;
  color: var(--c-text-2);
  font-size: 15.5px;
  line-height: 1.7;
  max-width: 70ch;
}

/* =========================
   CTA
   ========================= */
.cta {
  background: #14181d;
  color: #fff;
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta::before {
  content: "";
  position: absolute;
  top: 30px; left: 50%;
  transform: translateX(-50%);
  width: 40px; height: 2px;
  background: var(--patch-A-strong);
}
.cta__inner h2 {
  font-family: "Newsreader", serif;
  font-size: clamp(28px, 3.4vw, 44px);
  margin: 0 0 14px;
  font-weight: 500;
  letter-spacing: -.015em;
  line-height: 1.15;
  color: #fff;
}
.cta__inner p  {
  margin: 0 0 28px;
  color: rgba(255,255,255,.55);
  font-size: 16px;
  max-width: 50ch;
  margin-left: auto;
  margin-right: auto;
}
.cta .btn--primary {
  background: #fff;
  color: #14181d;
  border-radius: 2px;
  padding: 14px 28px;
}
.cta .btn--primary:hover { background: var(--patch-A); color: #fff; }

/* =========================
   FOOTER
   ========================= */
.footer {
  background: #14181d;
  color: #b6bdc4;
  padding: 72px 0 28px;
  margin-top: 0;
  border-top: 1px solid #14181d;
}
.footer .brand--light { color: #fff; }
.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 56px;
  padding-bottom: 40px;
  border-bottom: 1px solid #2a3036;
}
.footer__desc { color: #8b949e; margin: 16px 0 8px; max-width: 36ch; line-height: 1.65; font-size: 14px; }
.footer h4 {
  margin: 0 0 16px;
  color: #fff;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.footer ul li { margin: 8px 0; }
.footer ul li a { color: #b6bdc4; font-size: 14px; transition: color .15s; }
.footer ul li a:hover { color: #fff; }
.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #6b7480;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: .08em;
  padding-top: 24px;
  flex-wrap: wrap;
  gap: 8px;
}

/* =========================
   RESPONSIVE  (3 breakpoints)
   - 1024px  : laptop / tablet landscape
   - 768px   : tablet portrait / large phone
   - 480px   : phone
   ========================= */

/* ===== Laptop / tablet (≤1024px) ===== */
@media (max-width: 1024px) {
  .container { padding: 0 24px; }
  .hero__grid { gap: 40px; }
  .hero__titleBig { font-size: clamp(56px, 11vw, 96px); }
  .hero::after { font-size: 38vw; right: -4vw; bottom: -5vw; }

  .archive { grid-template-columns: repeat(3, 1fr); }
  .footer__grid { grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 36px; }

  .why { gap: 56px; }

  .countdown__inner { padding: 32px 24px; }
  .countdown h3 { font-size: 22px; }
  .countdown__timer strong { font-size: 32px; }
}

/* ===== Tablet portrait / large phone (≤768px) ===== */
@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .section { padding: 56px 0; }

  /* Top nav */
  .nav { display: none; }
  .topnav__inner { gap: 16px; justify-content: space-between; }
  .topnav__inner .btn { padding: 8px 12px; }

  /* Hero */
  .hero { padding: 40px 0 28px; }
  .hero__grid { grid-template-columns: 1fr; gap: 36px; align-items: stretch; }
  .hero__title { font-size: 22px; margin-bottom: 18px; }
  .hero__titleBig {
    font-size: clamp(54px, 14vw, 88px);
    line-height: .95;
  }
  .hero__titleSub { font-size: 18px; }
  .hero__desc { max-width: none; font-size: 15px; }
  .hero__cta .btn { flex: 1; min-width: 120px; }
  .hero::after { font-size: 50vw; right: -6vw; bottom: -8vw; opacity: .85; }

  .videoCard {
    max-width: 100%;
    width: 100%;
    align-self: stretch;
  }

  /* Today + answer */
  .answerStage { grid-template-columns: 1fr; gap: 18px; }
  .stageCard { padding: 22px 18px 16px; }

  /* Section heads */
  .sectionHead h2 { font-size: clamp(24px, 4.6vw, 32px); }
  .sectionHead p { font-size: 15px; }

  /* Why */
  .why {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  /* About */
  .about__head h2 { font-size: clamp(24px, 4.6vw, 32px); }
  .bullets { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bullets > li { padding: 18px 14px 18px 0; }
  .bullets > li:nth-child(4n) { padding-right: 14px; }

  /* How */
  .how__steps { grid-template-columns: repeat(2, 1fr); }
  .how__step:nth-child(3) { border-left: none; border-top: 1px solid #d9d3c8; grid-column: 1 / -1; }
  .how h2 { font-size: clamp(24px, 4.6vw, 32px); }

  /* Countdown */
  .countdown__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
    padding: 32px 20px;
  }
  .countdown__timer { width: 100%; }
  .countdown__timer > div { padding: 6px 16px; }

  /* Archive */
  .archive { grid-template-columns: repeat(2, 1fr); }
  .archive__item { min-height: 124px; padding: 18px 16px 16px; }
  .archive__no { font-size: 24px; margin-bottom: 8px; }

  /* CTA */
  .cta { padding: 64px 0; }
  .cta__inner h2 { font-size: clamp(26px, 5vw, 36px); }

  /* Footer */
  .footer { padding: 56px 0 24px; }
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px 24px;
    padding-bottom: 32px;
  }
  .footer__grid > div:first-child { grid-column: 1 / -1; }
  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}

/* ===== Phone (≤480px) ===== */
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .section { padding: 44px 0; }

  /* Top nav */
  .topnav__inner { height: 60px; gap: 12px; }
  .brand { font-size: 16px; gap: 8px; }
  .brand__logo { width: 26px; height: 26px; }
  .brand__logo svg { width: 24px; height: 24px; }
  .brand__muted { display: none; }
  .topnav__inner .btn svg { display: none; }
  .topnav__inner .btn { padding: 7px 10px; font-size: 12px; gap: 0; }

  /* Hero */
  .hero { padding: 28px 0 24px; }
  .hero__dateline {
    gap: 8px;
    font-size: 10px;
    letter-spacing: .14em;
    max-width: 100%;
    padding-bottom: 12px;
    margin-bottom: 20px;
  }
  .hero__title { font-size: 20px; margin-bottom: 16px; }
  .hero__titleBig { font-size: clamp(48px, 16vw, 72px); }
  .hero__titleBig::after { width: .14em; height: .14em; vertical-align: .55em; }
  .hero__titleSub { font-size: 16px; }
  .hero__desc { font-size: 14.5px; margin-bottom: 22px; line-height: 1.6; }
  .hero__cta { gap: 10px; }
  .hero__cta .btn {
    width: 100%;
    flex: none;
    padding: 12px 16px;
    font-size: 14px;
  }
  .hero::after { font-size: 60vw; right: -10vw; bottom: -10vw; opacity: .65; }

  /* Section heads */
  .sectionHead h2 { font-size: 24px; line-height: 1.2; }
  .sectionHead p { font-size: 14.5px; }
  .sectionHead { margin-bottom: 24px; }

  /* Stage cards (today area) */
  .stageCard { padding: 18px 12px 14px; border-radius: 4px; }
  .stageCard__head h3 { font-size: 19px; }
  .stageCard__head p { font-size: 12.5px; }

  /* Board */
  .board { --cell: 44px; padding: 6px; }
  .cell--clue { font-size: 14px; }
  .cell--clue::before { inset: 4px; border-radius: 5px; }

  /* Paint toolbar */
  .paint { gap: 6px; flex-wrap: wrap; justify-content: center; }
  .paint__swatches { gap: 3px; padding: 3px; }
  .sw { width: 24px; height: 24px; }
  .paint__action { padding: 5px 12px; font-size: 12px; }

  /* Hidden answer panel */
  .answerPanel { min-height: 232px; }
  .answerPanel__hidden { width: 232px; height: 232px; padding: 18px; }
  .answerPanel__hidden h4 { font-size: 17px; }
  .answerPanel__hidden p { font-size: 12.5px; }

  /* Reveal button */
  .reveal--center #revealBtn {
    min-width: 0;
    width: 100%;
    padding: 14px 24px;
  }

  /* Answer card */
  #answerCard { padding: 22px 20px; }
  .answerCard__title { font-size: 22px; }
  .answerCard__list li { padding: 10px 0; font-size: 13.5px; }
  .answerCard__list li strong { display: block; margin-bottom: 2px; min-width: 0; }

  /* Solve steps */
  .solveSteps { padding-top: 20px; margin-top: 26px; }
  .solveSteps h3 { font-size: 19px; }
  .solveSteps ol { gap: 14px; font-size: 14.5px; }
  .solveSteps ol li { gap: 12px; padding-bottom: 14px; }
  .solveSteps ol li::before { flex-basis: 32px; }

  /* Why */
  .why { gap: 18px; }
  .why__head h2 { font-size: 26px; }
  .why__list li { padding: 18px 0; gap: 14px; grid-template-columns: 32px 1fr; }
  .why__num { font-size: 32px; }
  .why__list h3 { font-size: 16px; }
  .why__list p { font-size: 14px; }

  /* About */
  .about__head { margin-bottom: 28px; }
  .about__head h2 { font-size: 26px; }
  .bullets { grid-template-columns: 1fr; }
  .bullets > li {
    padding: 16px 0;
    border-bottom: 1px solid #e8e3da;
    font-size: 14px;
  }
  .bullets > li:nth-child(n + 5) {
    border-top: none;
    border-bottom: none;
  }
  .bullets > li:nth-child(4n) { padding-right: 0; }
  .bullets__num { font-size: 26px; }

  /* How */
  .how h2 { font-size: 24px; margin-bottom: 22px; }
  .how__steps { grid-template-columns: 1fr; }
  .how__step {
    padding: 22px 0;
    border-left: none;
    border-top: 1px solid #d9d3c8;
  }
  .how__step:first-child { border-top: none; padding-top: 4px; }
  .how__step:last-child { padding-bottom: 4px; }
  .how__step:nth-child(3) { grid-column: auto; }
  .how__num { font-size: 30px; }

  /* Countdown */
  .countdown__inner { padding: 28px 16px; gap: 14px; }
  .countdown h3 { font-size: 20px; }
  .countdown__timer > div { padding: 4px 14px; }
  .countdown__timer > div:first-child { padding-left: 0; }
  .countdown__timer strong { font-size: 28px; }

  /* Archive */
  .archive { grid-template-columns: 1fr; border-left: none; }
  .archive__item {
    border-right: none;
    min-height: auto;
    padding: 16px 4px 14px;
  }
  .archive__no { font-size: 22px; margin-bottom: 6px; }
  .archive__title { font-size: 14px; }
  .archive__date { padding-top: 6px; font-size: 10px; }
  .archive__item .chip { top: 14px; right: 4px; }

  /* FAQ */
  .qa summary { font-size: 15.5px; padding: 16px 0; }
  .qa p { font-size: 14.5px; }

  /* CTA */
  .cta { padding: 48px 0; }
  .cta__inner h2 { font-size: clamp(22px, 5.6vw, 28px); }
  .cta__inner p { font-size: 14.5px; }
  .cta .btn--primary { padding: 12px 22px; font-size: 14px; }

  /* Footer */
  .footer { padding: 44px 0 22px; }
  .footer__grid {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-bottom: 24px;
  }
  .footer h4 { margin-bottom: 12px; }
  .footer__bottom { font-size: 10px; padding-top: 18px; }
}