/* ==========================================================
   Calculadora de faltas FP
   Estilo: hoja de cuaderno cuadriculado (modo claro)
           y pizarra verde (modo oscuro)
   ========================================================== */

:root {
  --bg: #f6f8fc;
  --grid: #dbe6f5;
  --card: #ffffff;
  --soft: #eef3fb;
  --ink: #13254d;
  --muted: #5b6b8c;
  --line: #d5deec;

  --pen: #1d4ed8;        /* bolígrafo azul */
  --marker: #ffe14d;     /* subrayador */
  --marker-ink: #2a2300;
  --margin: #f2a3a0;     /* margen rojo del cuaderno */
  --track: #e6ecf6;

  --ok: #1f9d55;
  --warn: #ea7a10;
  --bad: #e0322b;

  --shadow: 0 1px 0 var(--line), 0 10px 24px -16px rgb(19 37 77 / .35);
  --font: "Plus Jakarta Sans", ui-sans-serif, system-ui, sans-serif;
  --hand: "Caveat", "Segoe Print", "Comic Sans MS", cursive;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1c3a31;
    --grid: #25463c;
    --card: #22443a;
    --soft: #2a5145;
    --ink: #f3f1e7;
    --muted: #b5c7bd;
    --line: #3a6155;

    --pen: #9cc2ff;
    --marker: #ffe66b;
    --margin: #ff8a80;
    --track: #2f5a4d;

    --ok: #7ee0a3;
    --warn: #ffbf5e;
    --bad: #ff8a80;

    --shadow: 0 1px 0 var(--line), 0 12px 28px -16px rgb(0 0 0 / .55);
    color-scheme: dark;
  }
}

/* ---------- Base ---------- */

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 32px 16px 64px;
  color: var(--ink);
  font: 500 16px/1.5 var(--font);
  background-color: var(--bg);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 22px 22px;
  background-attachment: fixed;
}

.wrap {
  max-width: 600px;
  margin: 0 auto;
  display: grid;
  gap: 16px;
}

button:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--marker);
  outline-offset: 2px;
}

/* ---------- Cabecera ---------- */

header {
  display: grid;
  gap: 10px;
  margin-bottom: 6px;
}

.tag {
  justify-self: start;
  padding: 5px 12px;
  border: 1px solid var(--line);
  border-radius: 99px;
  background: var(--card);
  color: var(--pen);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font: 800 clamp(32px, 8.5vw, 48px)/1.02 var(--font);
  letter-spacing: -.035em;
  text-wrap: balance;
}

h1 em {
  font-style: normal;
  padding: 0 .08em;
  background: linear-gradient(transparent 52%, var(--marker) 52%, var(--marker) 92%, transparent 92%);
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}

.lead {
  margin: 0;
  color: var(--muted);
}

.hand {
  justify-self: start;
  margin-top: 2px;
  color: var(--bad);
  font: 700 24px/1 var(--hand);
  transform: rotate(-2deg);
}

/* ---------- Tarjeta de asignatura ---------- */

.lista {
  display: grid;
  gap: 14px;
}

.vacio {
  margin: 0;
  color: var(--muted);
  font: 700 20px/1.2 var(--hand);
}

.card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: center;
  padding: 16px 16px 16px 30px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background-color: var(--card);
  /* línea roja de margen, como en las libretas */
  background-image: linear-gradient(90deg, transparent 14px, var(--margin) 14px, var(--margin) 16px, transparent 16px);
  box-shadow: var(--shadow);
}

/* Anillo de progreso */
@property --p {
  syntax: "<number>";
  inherits: false;
  initial-value: 0;
}

.ring {
  --p: 0;
  --c: var(--ok);
  width: 108px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: conic-gradient(var(--c) calc(var(--p) * 1%), var(--track) 0);
  transition: --p .4s;
}

.ring > div {
  width: 80%;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  align-content: center;
  border-radius: 50%;
  background: var(--card);
  line-height: 1;
  text-align: center;
}

.ring b {
  color: var(--c);
  font: 800 32px/1 var(--font);
  font-variant-numeric: tabular-nums;
}

.ring small {
  margin-top: 2px;
  color: var(--muted);
  font: 700 16px/1 var(--hand);
}

.ring img {
  width: 84%;
  transform-origin: 50% 90%;
  animation: bailar .55s ease-in-out infinite;
}

.side {
  display: grid;
  gap: 10px;
  min-width: 0;
}

.top {
  display: flex;
  align-items: center;
  gap: 6px;
}

.name {
  flex: 1;
  min-width: 0;
  margin-left: -8px;
  padding: 5px 8px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  color: var(--ink);
  font: 700 17px var(--font);
}

.name::placeholder { color: var(--muted); }

.name:hover,
.name:focus {
  border-color: var(--line);
  background: var(--soft);
}

.x {
  flex: none;
  width: 32px;
  height: 32px;
  border: 0;
  border-radius: 10px;
  background: none;
  color: var(--muted);
  font-size: 20px;
  cursor: pointer;
}

.x:hover {
  background: var(--soft);
  color: var(--bad);
}

/* Contadores − / + */
.row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.box {
  display: grid;
  gap: 2px;
  min-width: 0;
  padding: 8px 8px 6px;
  border-radius: 12px;
  background: var(--soft);
}

.box > span {
  padding-left: 4px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
}

/* Campos de horas (se rellenan una vez, sin botones) */
.campo { cursor: text; }

.campo input {
  width: 100%;
  min-width: 0;
  padding: 2px 4px 4px;
  border: 0;
  background: transparent;
  color: var(--ink);
  font: 800 21px var(--font);
  font-variant-numeric: tabular-nums;
  -moz-appearance: textfield;
  appearance: textfield;
}

.campo input::placeholder { color: var(--muted); font-weight: 600; }

.campo input::-webkit-inner-spin-button,
.campo input::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.step {
  display: flex;
  align-items: center;
  gap: 4px;
}

.step button {
  flex: none;
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: 11px;
  background: var(--card);
  box-shadow: 0 0 0 1px var(--line);
  color: var(--ink);
  font: 700 19px/1 var(--font);
  cursor: pointer;
}

.step button:hover {
  background: var(--marker);
  color: var(--marker-ink);
  box-shadow: none;
}

.step button:active { transform: scale(.92); }

.step input {
  width: 100%;
  min-width: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--ink);
  font: 800 21px var(--font);
  font-variant-numeric: tabular-nums;
  text-align: center;
  -moz-appearance: textfield;
  appearance: textfield;
}

.step input::-webkit-inner-spin-button,
.step input::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* Estado */
.status {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
}

.status strong { color: var(--ink); }

.status .pct strong { font-size: 15px; }

.status .nota { font-style: italic; }

.pill {
  padding: 3px 10px;
  border-radius: 99px;
  font-size: 12px;
  font-weight: 700;
}

.pill.ok   { background: color-mix(in srgb, var(--ok) 16%, transparent);   color: var(--ok); }
.pill.warn { background: color-mix(in srgb, var(--warn) 18%, transparent); color: var(--warn); }
.pill.bad  { background: color-mix(in srgb, var(--bad) 18%, transparent);  color: var(--bad); }

@media (max-width: 420px) {
  .card {
    grid-template-columns: 1fr;
    justify-items: center;
  }
  .side { width: 100%; }
  .ring { width: 120px; }
}

/* ---------- Botón añadir y ajustes ---------- */

.add {
  padding: 16px;
  border: 2px dashed var(--pen);
  border-radius: 18px;
  background: color-mix(in srgb, var(--card) 70%, transparent);
  color: var(--pen);
  font: 700 16px var(--font);
  cursor: pointer;
}

.add:hover { background: var(--card); }

.ajustes {
  padding: 2px 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--card);
  box-shadow: var(--shadow);
}

.ajustes summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 0;
  font-weight: 700;
  list-style: none;
  cursor: pointer;
}

.ajustes summary::-webkit-details-marker { display: none; }

.ajustes summary::after {
  content: "+";
  color: var(--muted);
  font-size: 22px;
  line-height: 1;
}

.ajustes[open] summary::after { content: "−"; }

.settings {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  padding-bottom: 16px;
}

.settings label {
  display: grid;
  gap: 4px;
  color: var(--muted);
  font-size: 12.5px;
  font-weight: 700;
}

.settings input {
  width: 100%;
  min-width: 0;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--soft);
  color: var(--ink);
  font: 700 16px var(--font);
}

.note {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

/* ---------- Aviso con el gato ---------- */

.overlay {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  padding: 16px;
  background: color-mix(in srgb, var(--bg) 75%, transparent);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.overlay[hidden] { display: none; }

.pop {
  width: 100%;
  max-width: 360px;
  display: grid;
  justify-items: center;
  gap: 8px;
  padding: 24px 20px 20px;
  border: 1px solid var(--line);
  border-radius: 30px;
  background: var(--card);
  box-shadow: var(--shadow);
  text-align: center;
  animation: aparecer .45s cubic-bezier(.3, 1.5, .5, 1);
}

.pop img {
  width: min(220px, 60vw);
  height: auto;
  transform-origin: 50% 90%;
  animation: bailar .55s ease-in-out infinite;
}

.pop h3 {
  margin: 6px 0 0;
  color: var(--bad);
  font: 700 34px/1 var(--hand);
  text-wrap: balance;
}

.pop p {
  margin: 0;
  color: var(--muted);
}

.pop button {
  margin-top: 8px;
  padding: 12px 24px;
  border: 0;
  border-radius: 14px;
  background: var(--marker);
  color: var(--marker-ink);
  font: 800 16px var(--font);
  cursor: pointer;
}

/* ---------- Animaciones ---------- */

@keyframes bailar {
  0%   { transform: translateX(-8px) rotate(-10deg) translateY(0); }
  25%  { transform: translateX(0)    rotate(0)      translateY(-12px); }
  50%  { transform: translateX(8px)  rotate(10deg)  translateY(0); }
  75%  { transform: translateX(0)    rotate(0)      translateY(-12px); }
  100% { transform: translateX(-8px) rotate(-10deg) translateY(0); }
}

@keyframes aparecer {
  from { transform: scale(.7); opacity: 0; }
  to   { transform: scale(1);  opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  .pop img,
  .ring img { animation-duration: 2.4s; }
  .pop { animation: none; }
  .ring { transition: none; }
}