/* ───────── Panel de Profesor — Design tokens ───────── */
:root {
  /* Accents — cambia palette con data-palette en body */
  --accent: oklch(82% 0.19 125);           /* lima eléctrica */
  --accent-ink: oklch(22% 0.04 125);
  --accent-soft: oklch(96% 0.06 125);
  --accent-warm: oklch(72% 0.17 45);       /* naranja */

  /* Neutros cálidos */
  --bg: oklch(98.5% 0.004 90);
  --surface: #ffffff;
  --surface-2: oklch(96.5% 0.006 90);
  --ink: oklch(18% 0.01 260);
  --ink-2: oklch(42% 0.01 260);
  --ink-3: oklch(62% 0.008 260);
  --line: oklch(92% 0.005 260);
  --line-2: oklch(88% 0.006 260);

  /* Semánticos */
  --present: oklch(68% 0.15 145);
  --present-soft: oklch(95% 0.05 145);
  --absent: oklch(62% 0.17 25);
  --absent-soft: oklch(95% 0.04 25);
  --late: oklch(75% 0.14 75);
  --late-soft: oklch(96% 0.05 75);

  /* Radii / shadows */
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --r-xl: 22px;
  --r-pill: 999px;

  --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.04);
  --shadow-md: 0 2px 8px rgba(16, 24, 40, 0.06), 0 1px 2px rgba(16, 24, 40, 0.04);
  --shadow-lg: 0 12px 32px rgba(16, 24, 40, 0.10), 0 2px 6px rgba(16, 24, 40, 0.04);

  /* Densidad */
  --density-y: 14px;
  --density-x: 16px;
  --touch: 48px;

  /* Type */
  --font-display: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  --font-ui: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
}

/* Palette variants */
body[data-palette="lima"] {
  --accent: oklch(82% 0.19 125);
  --accent-ink: oklch(22% 0.04 125);
  --accent-soft: oklch(96% 0.06 125);
}
body[data-palette="coral"] {
  --accent: oklch(72% 0.18 30);
  --accent-ink: oklch(22% 0.04 30);
  --accent-soft: oklch(96% 0.04 30);
}
body[data-palette="azul"] {
  --accent: oklch(65% 0.18 245);
  --accent-ink: oklch(22% 0.04 245);
  --accent-soft: oklch(96% 0.04 245);
}
body[data-palette="violeta"] {
  --accent: oklch(62% 0.20 300);
  --accent-ink: oklch(22% 0.04 300);
  --accent-soft: oklch(96% 0.04 300);
}

/* Density variants */
body[data-density="compact"] {
  --density-y: 10px;
  --density-x: 12px;
  --touch: 40px;
}
body[data-density="comfortable"] {
  --density-y: 14px;
  --density-x: 16px;
  --touch: 48px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
body {
  font-family: var(--font-ui);
  background: oklch(96% 0.005 90);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  font-feature-settings: 'ss01', 'cv11';
}

/* Tabular numbers everywhere */
.tnum { font-variant-numeric: tabular-nums; }

/* Utility */
.mono { font-family: var(--font-mono); }
.display { font-family: var(--font-display); letter-spacing: -0.02em; }

/* Scrollbar (subtle) */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--line-2); border-radius: 999px; border: 2px solid transparent; background-clip: padding-box; }
::-webkit-scrollbar-thumb:hover { background: var(--ink-3); background-clip: padding-box; border: 2px solid transparent; }

/* Focus */
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }

/* Buttons */
.btn {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 15px;
  border-radius: var(--r-md);
  padding: 0 18px;
  height: var(--touch);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.12s ease, background 0.18s ease, border-color 0.18s ease;
  white-space: nowrap;
  letter-spacing: -0.01em;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
}
.btn-primary:hover { filter: brightness(0.97); }
.btn-secondary {
  background: var(--surface);
  color: var(--ink);
  border-color: var(--line-2);
}
.btn-secondary:hover { background: var(--surface-2); }
.btn-ghost {
  background: transparent;
  color: var(--ink-2);
}
.btn-ghost:hover { background: var(--surface-2); color: var(--ink); }
.btn-danger {
  background: var(--absent-soft);
  color: var(--absent);
  border-color: color-mix(in oklab, var(--absent) 20%, transparent);
}
.btn-sm { height: 36px; padding: 0 12px; font-size: 13px; border-radius: 10px; }

/* Inputs */
.input {
  font-family: var(--font-ui);
  font-size: 15px;
  background: var(--surface);
  border: 1px solid var(--line-2);
  border-radius: var(--r-md);
  padding: 0 14px;
  height: var(--touch);
  width: 100%;
  color: var(--ink);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px color-mix(in oklab, var(--accent) 20%, transparent);
}

/* Cards */
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-sm);
}

/* Pills / badges */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--r-pill);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1;
  height: 22px;
}
.pill-accent { background: var(--accent-soft); color: var(--accent-ink); }
.pill-present { background: var(--present-soft); color: var(--present); }
.pill-absent { background: var(--absent-soft); color: var(--absent); }
.pill-late { background: var(--late-soft); color: var(--late); }
.pill-muted { background: var(--surface-2); color: var(--ink-2); border: 1px solid var(--line); }

/* Dot indicator */
.dot { width: 6px; height: 6px; border-radius: 999px; display: inline-block; }

/* Animations */
@keyframes pop {
  0% { transform: scale(1); }
  40% { transform: scale(1.28); }
  100% { transform: scale(1); }
}
@keyframes checkDraw {
  from { stroke-dashoffset: 24; }
  to { stroke-dashoffset: 0; }
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes ripple {
  from { transform: scale(0.3); opacity: 0.5; }
  to { transform: scale(2.5); opacity: 0; }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes toastIn {
  from { opacity: 0; transform: translate(-50%, 12px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

.anim-pop { animation: pop 0.4s cubic-bezier(.34,1.56,.64,1); }
.anim-slide-up { animation: slideUp 0.3s ease-out; }
.anim-fade { animation: fadeIn 0.2s ease-out; }

/* Device frame chrome */
.device-shell {
  background: #141414;
  border-radius: 44px;
  padding: 10px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.18), 0 0 0 1px rgba(0, 0, 0, 0.08);
}
.device-screen {
  border-radius: 34px;
  overflow: hidden;
  background: var(--bg);
  position: relative;
}

/* App layout (phone) */
.app-phone {
  height: 100%;
  display: flex;
  flex-direction: column;
  background: var(--bg);
}

/* Divider */
.hr { height: 1px; background: var(--line); border: 0; margin: 0; }

/* Ring avatars */
.avatar {
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 999px; font-weight: 600; font-family: var(--font-display);
  letter-spacing: -0.02em; flex-shrink: 0;
}

/* Segmented control */
.segmented {
  display: inline-flex;
  background: var(--surface-2);
  padding: 3px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line);
  gap: 2px;
}
.segmented button {
  border: 0;
  background: transparent;
  padding: 7px 14px;
  border-radius: var(--r-pill);
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-2);
  cursor: pointer;
  transition: all 0.18s ease;
  white-space: nowrap;
}
.segmented button[aria-pressed="true"] {
  background: var(--surface);
  color: var(--ink);
  box-shadow: var(--shadow-sm);
}

/* Sticky headers */
.sticky-head {
  position: sticky; top: 0; z-index: 5;
  background: color-mix(in oklab, var(--bg) 85%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

/* Checkbox circle — custom */
.check-circle {
  width: 32px; height: 32px; border-radius: 999px;
  border: 2px solid var(--line-2);
  background: var(--surface);
  display: inline-flex; align-items: center; justify-content: center;
  transition: all 0.18s ease;
  flex-shrink: 0;
  cursor: pointer;
  position: relative;
}
.check-circle[data-state="present"] {
  background: var(--present);
  border-color: var(--present);
}
.check-circle[data-state="absent"] {
  background: var(--absent-soft);
  border-color: var(--absent);
}
.check-circle[data-state="late"] {
  background: var(--late-soft);
  border-color: var(--late);
}

/* Status segmented (per-row) */
.row-status {
  display: inline-flex;
  background: var(--surface-2);
  padding: 3px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line);
  gap: 2px;
}
.row-status button {
  border: 0;
  background: transparent;
  width: 36px;
  height: 30px;
  border-radius: var(--r-pill);
  display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer;
  color: var(--ink-3);
  transition: all 0.15s ease;
}
.row-status button[aria-pressed="true"][data-val="present"] {
  background: var(--present); color: #fff;
}
.row-status button[aria-pressed="true"][data-val="absent"] {
  background: var(--absent); color: #fff;
}
.row-status button[aria-pressed="true"][data-val="late"] {
  background: var(--late); color: #fff;
}

/* Tweaks panel */
.tweaks-panel {
  position: fixed;
  bottom: 18px;
  right: 18px;
  width: 280px;
  background: var(--surface);
  border: 1px solid var(--line-2);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  font-family: var(--font-ui);
  overflow: hidden;
}
.tweaks-head {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between;
  font-weight: 700;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-2);
}
.tweaks-section {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
}
.tweaks-section:last-child { border-bottom: 0; }
.tweaks-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-3);
  font-weight: 600;
  margin-bottom: 8px;
}
.tweaks-row { display: flex; gap: 6px; flex-wrap: wrap; }
.tweaks-chip {
  flex: 1;
  min-width: 0;
  padding: 7px 10px;
  border-radius: 8px;
  border: 1px solid var(--line-2);
  background: var(--surface);
  font-size: 12px;
  font-weight: 600;
  color: var(--ink-2);
  cursor: pointer;
  text-align: center;
  transition: all 0.15s ease;
}
.tweaks-chip[aria-pressed="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--bg);
}
.swatch-row { display: flex; gap: 8px; }
.swatch {
  width: 34px; height: 34px;
  border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer;
  position: relative;
}
.swatch[aria-pressed="true"] {
  border-color: var(--ink);
  box-shadow: 0 0 0 3px var(--bg) inset;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--ink);
  color: var(--bg);
  padding: 10px 16px;
  border-radius: 999px;
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  display: flex; align-items: center; gap: 8px;
  z-index: 2000;
  animation: toastIn 0.3s ease-out;
}

/* Desktop frame */
.desktop-shell {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--line-2);
  border-radius: 18px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.desktop-toolbar {
  height: 40px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--line);
  display: flex; align-items: center; gap: 8px;
  padding: 0 14px;
}
.tl-dot { width: 12px; height: 12px; border-radius: 999px; }

/* Viewport container */
.viewport {
  min-height: 100vh;
  display: flex; align-items: flex-start; justify-content: center;
  padding: 40px 24px;
  background:
    radial-gradient(1200px 400px at 50% -10%, color-mix(in oklab, var(--accent) 14%, transparent), transparent 60%),
    oklch(96% 0.005 90);
}

/* Meta chrome (topbar switcher) */
.metabar {
  position: fixed;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--surface);
  border: 1px solid var(--line-2);
  border-radius: 999px;
  box-shadow: var(--shadow-md);
  padding: 5px;
  display: inline-flex;
  gap: 2px;
  z-index: 900;
}
.metabar button {
  border: 0;
  background: transparent;
  padding: 7px 14px;
  border-radius: 999px;
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 600;
  color: var(--ink-2);
  cursor: pointer;
  letter-spacing: -0.01em;
}
.metabar button[aria-pressed="true"] {
  background: var(--ink);
  color: var(--bg);
}

/* Mini stripe (used for placeholder / images) */
.stripe-ph {
  background:
    repeating-linear-gradient(135deg,
      color-mix(in oklab, var(--ink) 5%, transparent) 0 6px,
      transparent 6px 12px),
    var(--surface-2);
  border: 1px dashed var(--line-2);
  border-radius: var(--r-md);
  display: flex; align-items: center; justify-content: center;
  color: var(--ink-3);
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* App bar (mobile) */
.appbar {
  padding: 14px 20px 10px;
  display: flex; align-items: center; gap: 12px;
  background: var(--bg);
}
.appbar .icon-btn {
  width: 40px; height: 40px; border-radius: 12px;
  border: 1px solid var(--line-2);
  background: var(--surface);
  display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer;
  color: var(--ink-2);
  flex-shrink: 0;
}
.appbar .icon-btn:hover { background: var(--surface-2); color: var(--ink); }

/* Tabbar (mobile bottom nav) */
.tabbar {
  border-top: 1px solid var(--line);
  background: color-mix(in oklab, var(--surface) 92%, transparent);
  backdrop-filter: blur(10px);
  padding: 8px 8px calc(8px + env(safe-area-inset-bottom));
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
}
.tab {
  display: flex; flex-direction: column; align-items: center; gap: 3px;
  padding: 8px 4px;
  border-radius: 10px;
  border: 0;
  background: transparent;
  cursor: pointer;
  color: var(--ink-3);
  font-family: var(--font-ui);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.tab[aria-pressed="true"] { color: var(--accent-ink); background: var(--accent-soft); }

/* Sparkline bar */
.spark {
  display: flex; align-items: flex-end; gap: 2px; height: 28px;
}
.spark i {
  display: block; width: 4px; border-radius: 2px;
  background: var(--accent);
}

/* Label */
.eyebrow {
  font-size: 11px; font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--ink-3);
}

/* SR-only */
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }