body {
  font-family: 'Poppins', sans-serif;
  margin: 0;
  background: #73466f;
  color: #333;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.app {
  width: 100%;
  max-width: 400px;
  padding: 1rem;
}


h1, h2 {
  margin-top: 0;
}

.status {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #555;
}

.details {
  margin-bottom: 1.5rem;
  font-size: 1rem;
}

.controls button {
  background: #007bff;
  color: white;
  border: none;
  border-radius: 50%;
  width: 60px;
  height: 60px;
  margin: 0 0.5rem;
  font-size: 1.5rem;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
}

.controls button:hover {
  background: #0056b3;
  transform: scale(1.1);
}

.config-buttons {
  display: flex;
  justify-content: space-between;
  margin-top: 1.5rem;
}

form label {
  display: flex;
  justify-content: space-between;
  margin: 0.5rem 0;
}

input {
  width: 80px;
  padding: 0.3rem;
  border-radius: 6px;
  border: 1px solid #ccc;
}

button[type="submit"], #back-btn {
  border-radius: 8px;
  padding: 0.5rem 1rem;
  border: none;
  background: #007bff;
  color: #fff;
  cursor: pointer;
  transition: background 0.2s;
}

button[type="submit"]:hover, #back-btn:hover {
  background: #0056b3;
}

/* Colores de fondo dinámicos por fase */
.card {
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  padding: 2rem;
  text-align: center;
  display: none;
  transition: background-color 0.8s ease, color 0.8s ease;
}

.card.active {
  display: block;
}


/* Estados visuales */
.card.work {
  background: #e8f8f0;
  color: #0d6831;
}

.card.rest {
  background: #e7f0ff;
  color: #093f83;
}

.card.warmup, .card.start-delay {
  background: #fff5e6;
  color: #8a4b00;
}

.card.cooldown {
  background: #ffe6e6;
  color: #7a0000;
}

.card.done {
  background: #f2f2f2;
  color: #333;
}

/* Colores según fase */
.card.work .progress { background-color: #28a745; }
.card.rest .progress { background-color: #007bff; }
.card.warmup .progress, .card.start-delay .progress { background-color: #ffc107; }
.card.cooldown .progress { background-color: #dc3545; }
.card.done .progress { background-color: #6c757d; }

/** Estilos para nuevo circulo progresivo */
.border{
    fill: transparent;
    stroke: #f0b2f1;
    stroke-width: 13px;
    filter: drop-shadow(0px 0px 4px rgba(155, 155, 155, 0.7));
}

.progress{
    fill: transparent;
    stroke: purple;
    stroke-width: 13px;
    stroke-dasharray: 565.5;
    stroke-dashoffset: 565.5;
    rotate: -90deg;
    transform-origin: center;
    stroke-linecap: round;
}

.innerTime{
    font-size: 4rem;
    font-weight: bold;
    text-anchor: middle;
    dominant-baseline: central;
    fill: rgb(172, 21, 21);
}


/* === EFECTO PULSO AL CAMBIAR DE FASE === */
@keyframes pulse {
  0% { transform: scale(1); box-shadow: 0 0 0 rgba(0,0,0,0); }
  50% { transform: scale(1.05); box-shadow: 0 0 15px rgba(0,0,0,0.2); }
  100% { transform: scale(1); box-shadow: 0 0 0 rgba(0,0,0,0); }
}

.card.pulse {
  animation: pulse 0.8s ease;
}

/* === MODO OSCURO === */
@media (prefers-color-scheme: dark) {
  body {
    background: #121212;
    color: #e5e5e5;
  }

  .card {
    background: #1f1f1f;
    box-shadow: 0 1px 12px rgba(172, 171, 171, 0.87);
  }

  input {
    background: #2a2a2a;
    color: #fff;
    border: 1px solid #444;
  }

  .controls button {
    background: #2f6de0;
  }

  .controls button:hover {
    background: #1d4fb3;
  }

  button[type="submit"], #back-btn {
    background: #2f6de0;
  }

  button[type="submit"]:hover, #back-btn:hover {
    background: #1d4fb3;
  }

  .border{
      filter: drop-shadow(0px 0px 4px rgba(255, 155, 197, 0.7));
  }

  /* Ajustes de colores de fase para modo oscuro */
  .card.work { background: #143d26; color: #a8f5c1; }
  .card.rest { background: #142a4d; color: #b0c8ff; }
  .card.warmup, .card.start-delay { background: #4d3a00; color: #ffe9a8; }
  .card.cooldown { background: #4d0000; color: #ffb0b0; }
  .innerTime{
    fill: #fafafa;
  }
}


@media (max-width: 480px) {
  .time { font-size: 3rem; }
  .controls button { width: 50px; height: 50px; font-size: 1.2rem; }
}