/* ============================================================
   coco 小站
   风格：新粗野主义 / Neo-Brutalism
   纯静态，无外部字体、无 CDN、无依赖
   ============================================================ */

:root {
  --bg: #f4efe4;
  --surface: #fffdf7;
  --text: #111111;
  --body: #2b2b2b;
  --line: #111111;
  --accent: #ff4d00;
  --bw: 3px;
  --shadow: 6px 6px 0 var(--line);
  --shadow-lift: 10px 10px 0 var(--line);
  --font: "Segoe UI", "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: "Cascadia Code", "SF Mono", Consolas, "Courier New", monospace;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* 纸纹：极淡的斜线，靠 CSS 生成，不用图片 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image: repeating-linear-gradient(
    135deg,
    rgba(17, 17, 17, .028) 0 1px,
    transparent 1px 9px
  );
}

.top, main, .foot { position: relative; z-index: 1; }

/* ============================================================
   顶栏
   ============================================================ */
.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  max-width: 1040px;
  margin: 0 auto;
  padding: 24px clamp(20px, 5vw, 48px) 18px;
  border-bottom: var(--bw) solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 800;
  letter-spacing: -.02em;
  font-size: 17px;
}

.mark {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border: 2px solid var(--line);
  background: var(--accent);
  color: #111;
  font-size: 16px;
  font-weight: 800;
  line-height: 1;
}

/* ---------- 视图切换 ---------- */
.tabs {
  display: inline-flex;
  border: var(--bw) solid var(--line);
  background: var(--surface);
  box-shadow: 4px 4px 0 var(--line);
}

.tabs button {
  appearance: none;
  border: 0;
  border-right: 2px solid var(--line);
  background: transparent;
  color: var(--text);
  font-family: var(--font);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: 8px 16px;
  cursor: pointer;
  transition: background-color .12s ease, color .12s ease;
}

.tabs button:last-child { border-right: 0; }

.tabs button:hover { background: #ffe6db; }

.tabs button[aria-selected="true"] {
  background: var(--accent);
  color: #111;
}

.tabs button:focus-visible {
  outline: 3px solid var(--line);
  outline-offset: -6px;
}

.pane:focus { outline: none; }
.pane[hidden] { display: none; }

/* ============================================================
   主体
   ============================================================ */
main {
  flex: 1;
  width: 100%;
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 clamp(20px, 5vw, 48px) 56px;
}

.hero { padding: clamp(44px, 10vh, 100px) 0 clamp(34px, 6vh, 62px); }

.kicker {
  margin: 0 0 18px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--text);
}

.kicker::before {
  content: "";
  display: inline-block;
  width: 26px;
  height: 3px;
  background: var(--accent);
  vertical-align: middle;
  margin-right: 12px;
}

h1 {
  margin: 0 0 24px;
  font-size: clamp(36px, 6.8vw, 68px);
  line-height: 1.08;
  letter-spacing: -.045em;
  font-weight: 900;
}

h1 em {
  font-style: normal;
  color: var(--accent);
  /* 粗野风的硬投影，不用模糊 */
  text-shadow: 4px 4px 0 var(--line);
}

.lead {
  margin: 0;
  max-width: 34em;
  color: var(--body);
  font-size: clamp(15px, 1.7vw, 18px);
  font-weight: 500;
}

.clock {
  margin-top: 34px;
  display: inline-flex;
  align-items: baseline;
  gap: 16px;
  padding: 10px 20px;
  border: var(--bw) solid var(--line);
  background: var(--surface);
  box-shadow: 4px 4px 0 var(--line);
}

#clock-time {
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: .04em;
  font-variant-numeric: tabular-nums;
}

.muted { color: #666; font-size: 13px; }

/* ============================================================
   卡片
   ============================================================ */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(238px, 1fr));
  gap: 20px;
  margin: 10px 0 clamp(36px, 6vh, 64px);
}

.card {
  padding: 22px 22px 26px;
  border: var(--bw) solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow);
  transition: transform .16s ease, box-shadow .16s ease;
}

.card:hover {
  transform: translate(-4px, -4px);
  box-shadow: var(--shadow-lift);
}

.card h2 {
  margin: 0 0 14px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.card h2::after {
  content: "";
  display: block;
  width: 28px;
  height: 3px;
  margin-top: 10px;
  background: var(--accent);
}

.card p { margin: 0; color: var(--body); font-size: 14.5px; }

/* ============================================================
   随口一句
   ============================================================ */
.quote {
  position: relative;
  padding: clamp(26px, 4vw, 40px);
  border: var(--bw) solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow);
  margin: 0 0 clamp(34px, 6vh, 60px);
}

.quote::after {
  content: "”";
  position: absolute;
  top: 4px;
  right: 18px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 88px;
  line-height: 1;
  color: var(--accent);
  opacity: .22;
  pointer-events: none;
}

.quote-label {
  margin: 0 0 16px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--text);
}

blockquote {
  margin: 0;
  font-size: clamp(19px, 2.6vw, 26px);
  line-height: 1.5;
  font-weight: 700;
  letter-spacing: -.015em;
  max-width: 30em;
  min-height: 3em;
}

.quote-actions {
  margin-top: 26px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  appearance: none;
  border: var(--bw) solid var(--line);
  background: var(--accent);
  color: #111;
  font-family: var(--font);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 9px 20px;
  cursor: pointer;
  box-shadow: 4px 4px 0 var(--line);
  transition: transform .12s ease, box-shadow .12s ease;
}

.btn:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0 var(--line); }
.btn:active { transform: translate(2px, 2px); box-shadow: 1px 1px 0 var(--line); }
.btn:focus-visible { outline: 3px solid var(--line); outline-offset: 3px; }

.hint { font-family: var(--mono); font-size: 12px; color: #6b6b6b; }

kbd {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  padding: 1px 6px;
  border: 2px solid var(--line);
  background: #fff;
}

code {
  font-family: var(--mono);
  font-size: .9em;
  font-weight: 600;
  padding: 1px 6px;
  border: 2px solid var(--line);
  background: var(--surface);
  white-space: nowrap;
}

/* ============================================================
   页脚
   ============================================================ */
.foot {
  width: 100%;
  max-width: 1040px;
  margin: 0 auto;
  padding: 22px clamp(20px, 5vw, 48px) 40px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  border-top: var(--bw) solid var(--line);
  font-family: var(--mono);
  font-size: 12px;
  color: #555;
}

/* ============================================================
   今天的小事
   ============================================================ */
.todo {
  margin-top: 4px;
  padding: 24px;
  border: var(--bw) solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.todo-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: var(--bw) solid var(--line);
}

.todo-head h2 {
  margin: 0;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.todo-list { margin: 0; padding: 0; list-style: none; }

.todo-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px dashed #c9c1b1;
}

.todo-list li:last-child { border-bottom: 0; }

.todo-list li.empty {
  display: block;
  color: #8a8a8a;
  font-size: 14px;
  font-style: italic;
}

.todo-list input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin: 0;
  border: 3px solid var(--line);
  background: #fff;
  cursor: pointer;
}

.todo-list input[type="checkbox"]:checked {
  background: var(--accent)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M4 12.5l5 5 11-11' fill='none' stroke='%23111' stroke-width='4'/%3E%3C/svg%3E")
    center / 15px no-repeat;
}

.todo-list input[type="checkbox"]:focus-visible {
  outline: 3px solid var(--line);
  outline-offset: 2px;
}

.todo-text { flex: 1; font-size: 14.5px; word-break: break-word; }
.todo-text.done { text-decoration: line-through; color: #8a8a8a; }

.todo-del {
  flex: 0 0 auto;
  width: 26px;
  height: 26px;
  padding: 0;
  border: 2px solid var(--line);
  background: #fff;
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  font-weight: 800;
  line-height: 1;
  cursor: pointer;
  transition: background-color .12s ease;
}

.todo-del:hover { background: var(--accent); }

.todo-form { display: flex; gap: 10px; margin-top: 18px; }

#todo-input {
  flex: 1;
  min-width: 0;
  padding: 9px 12px;
  border: var(--bw) solid var(--line);
  border-radius: 0;
  background: #fff;
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
}

#todo-input::placeholder { color: #9a9384; }

#todo-input:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

.todo .hint { display: block; margin-top: 14px; }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 720px) {
  .top { flex-wrap: wrap; gap: 12px; padding-top: 18px; }
  .hero { padding-top: 34px; }
  .tabs button { padding: 7px 11px; font-size: 11px; letter-spacing: .06em; }
  h1 em { text-shadow: 3px 3px 0 var(--line); }
  .card:hover { transform: none; box-shadow: var(--shadow); }
  .todo { padding: 20px 18px; }
  .todo-form { flex-wrap: wrap; }
  .todo-form .btn { flex: 1 0 auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}

@media print {
  body::before { display: none; }
  .card, .clock { box-shadow: none; }
}