/* Maclife Type — theme đồng bộ với brand Maclife */

:root[data-theme="dark"] {
  --bg: #1a1d21;
  --surface: #23272e;
  --surface-2: #2b2f37;
  --border: #353b45;
  --text-dim: #646669;
  --text: #d1d0c5;
  --text-strong: #ffffff;
  --accent: #0088ff;
  --accent-2: #22cfff;
  --error: #ca4754;
  --success: #22cfff;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

:root[data-theme="light"] {
  --bg: #f7f9fc;
  --surface: #ffffff;
  --surface-2: #eef2f7;
  --border: #d8dee6;
  --text-dim: #8a93a3;
  --text: #343f52;
  --text-strong: #0d1117;
  --accent: #0088ff;
  --accent-2: #0065bd;
  --error: #d83a4b;
  --success: #0088ff;
  --shadow: 0 4px 16px rgba(20, 40, 80, 0.08);
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Roboto Mono', ui-monospace, monospace;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-2); }

/* Header */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 16px 32px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky; top: 0; z-index: 50;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
}
.brand img {
  display: block;
  height: 28px;
  width: auto;
}
.brand-sub {
  font-family: 'Roboto Mono', ui-monospace, monospace;
  font-size: 14px;
  color: var(--accent);
  padding: 2px 8px;
  border: 1px solid var(--accent);
  border-radius: 4px;
  letter-spacing: 0.05em;
}

.topnav {
  display: flex;
  gap: 24px;
  margin-right: auto;
  margin-left: 32px;
}
.topnav a {
  color: var(--text-dim);
  font-weight: 500;
  font-size: 14px;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
}
.topnav a:hover { color: var(--text); }
.topnav a.active {
  color: var(--text-strong);
  border-bottom-color: var(--accent);
}

.topright {
  display: flex;
  align-items: center;
  gap: 12px;
}

.icon-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  width: 36px; height: 36px;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .15s;
}
.icon-btn:hover { color: var(--text); border-color: var(--text-dim); }
:root[data-theme="dark"] .ic-sun { display: block; }
:root[data-theme="dark"] .ic-moon { display: none; }
:root[data-theme="light"] .ic-sun { display: none; }
:root[data-theme="light"] .ic-moon { display: block; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all .15s;
  background: transparent;
  color: var(--text);
}
.btn:hover { background: var(--surface-2); }
.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover { background: var(--accent-2); color: #fff; border-color: var(--accent-2); }
.btn-ghost { color: var(--text-dim); }
.btn-ghost:hover { color: var(--text); background: var(--surface); }
.btn-danger {
  background: transparent;
  color: var(--error);
  border-color: var(--error);
}
.btn-danger:hover { background: var(--error); color: #fff; }

/* User menu */
.user-menu { position: relative; }
.user-btn {
  background: transparent; border: 0; padding: 0;
  cursor: pointer; border-radius: 50%;
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
}
.user-btn img { border-radius: 50%; display: block; }
.avatar-placeholder {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 600;
  text-transform: uppercase;
}
.user-pop {
  position: absolute;
  right: 0; top: calc(100% + 8px);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow);
  min-width: 220px;
  padding: 6px;
  display: flex; flex-direction: column;
}
/* Fix: hidden attribute không có hiệu lực khi .user-pop có display:flex
   (display:flex đè display:none mặc định của [hidden]) → menu không đóng được. */
.user-pop[hidden] { display: none !important; }
.user-info {
  padding: 12px 14px 10px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4px;
}
.user-name { color: var(--text-strong); font-weight: 600; font-size: 14px; }
.user-email { color: var(--text-dim); font-size: 12px; margin-top: 2px; overflow: hidden; text-overflow: ellipsis; }
.user-pop a {
  padding: 10px 14px;
  color: var(--text);
  font-size: 14px;
  border-radius: 6px;
}
.user-pop a:hover { background: var(--surface-2); color: var(--text-strong); }

/* Page */
.page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 32px 80px;
}

.site-foot {
  text-align: center;
  padding: 24px;
  color: var(--text-dim);
  font-size: 13px;
  display: flex;
  justify-content: center;
  gap: 8px;
}
.site-foot .dot { opacity: .5; }

/* ============ Typing test ============ */

.test-controls {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 4px;
  margin: 24px auto 32px;
  background: var(--surface);
  padding: 6px;
  border-radius: 10px;
  width: fit-content;
  max-width: 100%;
  border: 1px solid var(--border);
}
.test-controls .group {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 0 6px;
}
/* Fix: `hidden` attribute không có effect khi .group có display:flex,
   nên ghi đè !important để mode-specific group ẩn đúng. */
.test-controls .group[hidden] { display: none !important; }
.test-controls .group + .group:not([hidden]) { border-left: 1px solid var(--border); }
.test-controls button {
  background: transparent;
  border: 0;
  color: var(--text-dim);
  padding: 6px 10px;
  font-family: 'Roboto Mono', ui-monospace, monospace;
  font-size: 13px;
  cursor: pointer;
  border-radius: 6px;
  transition: color .15s, background .15s;
  white-space: nowrap;
}
.test-controls button:hover { color: var(--text); }
.test-controls button.active {
  color: var(--accent);
  background: rgba(0,136,255,0.12);
}

@media (max-width: 640px) {
  .test-controls { width: 100%; padding: 4px; }
  .test-controls .group { padding: 0 4px; }
  .test-controls button { padding: 6px 8px; font-size: 12px; }
}

.stats-bar {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-bottom: 16px;
  color: var(--accent);
  font-family: 'Roboto Mono', ui-monospace, monospace;
  min-height: 32px;
  font-size: 18px;
}
.stats-bar .stat { display: flex; align-items: baseline; gap: 6px; }
.stats-bar .stat .label { font-size: 12px; color: var(--text-dim); text-transform: uppercase; }
.stats-bar .stat .val { font-size: 24px; font-weight: 500; }

.typing-area {
  position: relative;
  font-family: 'Roboto Mono', ui-monospace, monospace;
  font-size: 26px;
  line-height: 1.6;
  letter-spacing: 0.01em;
  color: var(--text-dim);
  max-height: calc(1.6em * 3);
  overflow: hidden;
  padding: 8px 4px;
  cursor: text;
  user-select: none;
}
.typing-area .word { display: inline-block; margin-right: 0.5ch; }
.typing-area .char.correct { color: var(--text-strong); }
.typing-area .char.incorrect { color: var(--error); text-decoration: underline; }
.typing-area .extra { color: var(--error); opacity: 0.6; font-family: inherit; }
.typing-area .word.error { text-decoration: wavy underline var(--error); text-underline-offset: 6px; }

.caret {
  position: absolute;
  width: 3px;
  background: var(--accent);
  border-radius: 2px;
  box-shadow: 0 0 6px var(--accent);
  /* Transition ngắn + linear để caret bám sát keystroke ở tốc độ cao (8-10 char/s).
     Cũ là 80ms ease → caret luôn dở dang, mỗi keystroke reset transition → cảm
     giác "nhảy". 40ms linear là sweet spot: vẫn smooth nhưng kịp với gõ nhanh. */
  transition: left .04s linear, top .04s linear, height .04s linear;
  animation: blink 1.1s infinite;
  pointer-events: none;
  z-index: 2;
}
@keyframes blink {
  0%, 40% { opacity: 1; }
  60%, 100% { opacity: 0.15; }
}

.typing-input {
  position: absolute;
  left: -9999px;
  opacity: 0;
  pointer-events: none;
}

.hint {
  text-align: center;
  color: var(--text-dim);
  margin-top: 32px;
  font-size: 13px;
}
.hint kbd {
  display: inline-block;
  padding: 2px 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-family: 'Roboto Mono', ui-monospace, monospace;
  font-size: 12px;
  color: var(--text);
}

.restart-btn {
  display: block;
  margin: 24px auto;
  background: transparent;
  border: 0;
  color: var(--text-dim);
  width: 40px; height: 40px;
  border-radius: 50%;
  cursor: pointer;
  transition: color .15s, background .15s;
}
.restart-btn:hover { color: var(--accent); background: var(--surface); }

/* Result overlay */
.result {
  margin: 32px auto;
  max-width: 760px;
  text-align: center;
}
.result .big {
  font-family: 'Roboto Mono', ui-monospace, monospace;
  font-size: 68px;
  color: var(--accent);
  font-weight: 500;
  line-height: 1.1;
  margin-top: 4px;
}
.result .big .unit { font-size: 22px; color: var(--text-dim); margin-left: 6px; }
.result .label-top { font-size: 12px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.1em; }
.result .result-sub { font-size: 12px; color: var(--text-dim); margin-top: 6px; }
.result-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin: 28px 0 20px;
  text-align: left;
}
.result-grid .cell {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 14px 16px;
  border-radius: 10px;
}
.result-grid .cell .l { color: var(--text-dim); font-size: 11px; text-transform: uppercase; letter-spacing: 0.04em; }
.result-grid .cell .v {
  font-family: 'Roboto Mono', ui-monospace, monospace;
  font-size: 24px;
  color: var(--text-strong);
  margin-top: 2px;
  line-height: 1.2;
}
.result-grid .cell .v .sep { color: var(--text-dim); margin: 0 4px; font-weight: 300; }
.result-grid .cell .v .sub { color: var(--text-dim); font-size: 14px; margin-left: 4px; }

@media (max-width: 640px) {
  .result-grid { grid-template-columns: repeat(2, 1fr); }
  .result .big { font-size: 56px; }
}
.result-actions { display: flex; gap: 12px; justify-content: center; margin-top: 24px; }
.result-msg {
  margin-top: 16px;
  font-size: 14px;
  color: var(--text-dim);
}
.result-msg.ok { color: var(--success); }
.result-msg.err { color: var(--error); }

/* ============ Tables / leaderboard / dashboard ============ */

.page-title {
  font-size: 28px;
  margin: 16px 0 8px;
  color: var(--text-strong);
}
.page-sub {
  color: var(--text-dim);
  margin-bottom: 24px;
}

.tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.tabs a, .tabs button {
  background: transparent; border: 0;
  color: var(--text-dim);
  padding: 10px 16px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.tabs a:hover, .tabs button:hover { color: var(--text); }
.tabs a.active, .tabs button.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.filters {
  display: flex;
  gap: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
  align-items: center;
}
.filters .group { display: flex; gap: 4px; background: var(--surface); padding: 4px; border-radius: 8px; border: 1px solid var(--border); }
.filters .group button {
  background: transparent; border: 0;
  padding: 6px 12px;
  font-size: 13px;
  color: var(--text-dim);
  cursor: pointer;
  border-radius: 6px;
  font-family: inherit;
}
.filters .group button.active { background: var(--accent); color: #fff; }

table.data {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}
table.data th, table.data td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
table.data th {
  background: var(--surface-2);
  color: var(--text-dim);
  font-weight: 500;
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.05em;
}
table.data tr:last-child td { border-bottom: 0; }
table.data tr.me { background: rgba(0,136,255,0.08); }
table.data td.num { font-family: 'Roboto Mono', ui-monospace, monospace; color: var(--text-strong); }
table.data td.rank { font-family: 'Roboto Mono', ui-monospace, monospace; color: var(--text-dim); width: 60px; }
table.data td.rank.top1 { color: #f5c518; font-weight: 700; }
table.data td.rank.top2 { color: #c0c0c0; }
table.data td.rank.top3 { color: #cd7f32; }
table.data .user-cell { display: flex; align-items: center; gap: 10px; }
table.data .user-cell img { width: 28px; height: 28px; border-radius: 50%; }
table.data .avatar-placeholder { width: 28px; height: 28px; font-size: 12px; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 20px;
  border-radius: 12px;
}
.card .l { color: var(--text-dim); font-size: 13px; }
.card .v {
  font-family: 'Roboto Mono', ui-monospace, monospace;
  font-size: 36px;
  color: var(--accent);
  margin-top: 8px;
  font-weight: 500;
}
.card .v .unit { font-size: 16px; color: var(--text-dim); margin-left: 4px; }

.chart-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 24px;
  height: 320px;
}

.empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-dim);
}
.empty .icon { font-size: 48px; margin-bottom: 16px; opacity: 0.4; }

/* Login page */
.login-card {
  max-width: 420px;
  margin: 64px auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px;
  text-align: center;
}
.login-card h1 { margin: 0 0 8px; color: var(--text-strong); }
.login-card p { color: var(--text-dim); margin-bottom: 24px; }
.login-card .btn-google {
  background: #fff;
  color: #333;
  border: 1px solid #ddd;
  width: 100%;
  padding: 12px;
  font-weight: 500;
}
.login-card .btn-google:hover { background: #f7f7f7; }

/* Admin */
.admin-actions { display: flex; gap: 8px; }
.role-badge {
  display: inline-block;
  padding: 2px 8px;
  font-size: 11px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}
.role-admin { background: rgba(0,136,255,0.15); color: var(--accent); }
.role-user { background: var(--surface-2); color: var(--text-dim); }
.status-active { color: var(--success); }
.status-inactive { color: var(--error); }

@media (max-width: 768px) {
  .topbar { padding: 12px 16px; gap: 12px; }
  .topnav { gap: 12px; margin-left: 0; font-size: 13px; }
  .brand-sub { display: none; }
  .page { padding: 16px; }
  .typing-area { font-size: 20px; }
  .result .big { font-size: 64px; }
}