:root {
  --bg: #f9f9f9;     /* fondo principal */
  --ink: #222;       /* texto principal */
  --accent: #3b82f6; /* azul acento */
  --accent2: #10b981;/* verde acento */
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: system-ui, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
}

.container { max-width: 1100px; margin: auto; padding: 0 16px; }

nav {
  position: sticky;
  top: 0;
  background: #ffffff;
  border-bottom: 1px solid #ddd;
  z-index: 10;
}

nav .bar {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}

.logo { font-weight: 700; letter-spacing: .3px; color: var(--accent); }

.menu { display: flex; flex-wrap: wrap; gap: 10px; }
.menu a {
  padding: 8px 12px;
  border-radius: 8px;
  text-decoration: none;
  color: var(--ink);
  transition: background 0.2s;
}
.menu a:hover { background: #eaeaea; }

.hero {
  padding: 56px 0 28px;
  border-bottom: 1px solid #ddd;
  text-align: center;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
  color: white;
}

.hero h1 { margin: 0 0 8px; }
.tag {
  display: inline-block;
  background: rgba(255,255,255,0.2);
  padding: 4px 8px;
  border-radius: 999px;
  font-size: .8rem;
  margin-bottom: 10px;
}

section { padding: 40px 0; border-bottom: 1px solid #eee; }
section h2 { margin: 0 0 12px; }

.card {
  background: #fff;
  border-radius: 14px;
  padding: 16px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}

.grid { display: grid; gap: 16px; }
.grid.cols-2 { grid-template-columns: repeat(2,minmax(0,1fr)); }
.grid.cols-3 { grid-template-columns: repeat(3,minmax(0,1fr)); }
@media (max-width:900px) {
  .grid.cols-2, .grid.cols-3 { grid-template-columns: 1fr; }
}

button, .btn {
  background: var(--accent);
  color: white;
  border: 0;
  padding: 10px 14px;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 600;
  transition: background 0.2s;
}
button:hover, .btn:hover { background: var(--accent2); }

input,select,textarea {
  width: 100%;
  padding: 10px;
  border-radius: 10px;
  border: 1px solid #ccc;
  background: #fff;
  color: var(--ink);
}

small.muted { color: #666; }

footer {
  padding: 28px 0;
  color: #555;
  text-align: center;
  background: #f1f1f1;
}
:root {
  --bg: #f9f9f9;     /* fondo principal */
  --ink: #222;       /* texto principal */
  --accent: #3b82f6; /* azul acento */
  --accent2: #10b981;/* verde acento */
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: system-ui, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
}

.container { max-width: 1100px; margin: auto; padding: 0 16px; }

nav {
  position: sticky;
  top: 0;
  background: #ffffff;
  border-bottom: 1px solid #ddd;
  z-index: 10;
}

nav .bar {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}

.logo { font-weight: 700; letter-spacing: .3px; color: var(--accent); }

.menu { display: flex; flex-wrap: wrap; gap: 10px; }
.menu a {
  padding: 8px 12px;
  border-radius: 8px;
  text-decoration: none;
  color: var(--ink);
  transition: background 0.2s;
}
.menu a:hover { background: #eaeaea; }

.hero {
  padding: 56px 0 28px;
  border-bottom: 1px solid #ddd;
  text-align: center;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
  color: white;
}

.hero h1 { margin: 0 0 8px; }
.tag {
  display: inline-block;
  background: rgba(255,255,255,0.2);
  padding: 4px 8px;
  border-radius: 999px;
  font-size: .8rem;
  margin-bottom: 10px;
}

section { padding: 40px 0; border-bottom: 1px solid #eee; }
section h2 { margin: 0 0 12px; }

.card {
  background: #fff;
  border-radius: 14px;
  padding: 16px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}

.grid { display: grid; gap: 16px; }
.grid.cols-2 { grid-template-columns: repeat(2,minmax(0,1fr)); }
.grid.cols-3 { grid-template-columns: repeat(3,minmax(0,1fr)); }
@media (max-width:900px) {
  .grid.cols-2, .grid.cols-3 { grid-template-columns: 1fr; }
}

button, .btn {
  background: var(--accent);
  color: white;
  border: 0;
  padding: 10px 14px;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 600;
  transition: background 0.2s;
}
button:hover, .btn:hover { background: var(--accent2); }

input,select,textarea {
  width: 100%;
  padding: 10px;
  border-radius: 10px;
  border: 1px solid #ccc;
  background: #fff;
  color: var(--ink);
}

small.muted { color: #666; }

footer {
  padding: 28px 0;
  color: #555;
  text-align: center;
  background: #f1f1f1;
}

.logo img {
  max-height: 40px;
  vertical-align: middle;
}

section {
  scroll-margin-top: 80px; /* Ajusta segons l’alçada de la teva barra de navegació */
}

/* FAQ acordeón */
.faq { display: grid; gap: 12px; }

.faq details {
  background: #fff;
  border-radius: 12px;
  padding: 12px 14px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
  border: 1px solid #eee;
}

.faq summary {
  list-style: none;           /* ocultar triángulo default */
  cursor: pointer;
  font-weight: 700;
  display: flex;
  align-items: center;
  position: relative;
  padding-right: 28px;
}

.faq summary::after {
  content: "+";
  position: absolute;
  right: 0;
  font-weight: 700;
  transition: transform .2s ease;
}

.faq details[open] summary::after { content: "–"; }
.faq details p { margin: 10px 0 4px; color: #444; }

/* Carrusel Testimonis */
.carousel {
  position: relative;
  overflow: hidden;
  background: transparent;
  border-radius: 14px;
  margin-top: 8px;
}
.car-track {
  display: flex;
  transition: transform .4s ease;
  will-change: transform;
}
.car-slide {
  min-width: 100%;
  margin: 0;
}
.car-slide blockquote {
  margin: 0 0 8px 0;
  font-size: 1.05rem;
  color: #333;
}
.car-slide figcaption small { color: #666; }

.car-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  border: 0;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(0,0,0,.08);
  color: #111;
  font-size: 22px;
  cursor: pointer;
}
.car-btn:hover { background: rgba(0,0,0,.15); }
.car-btn.prev { left: 8px; }
.car-btn.next { right: 8px; }

.car-dots {
  display: flex;
  gap: 8px;
  justify-content: center;
  padding: 10px 0 2px;
}
.car-dots .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  border: 0;
  background: #cfd4d8;
  cursor: pointer;
}
.car-dots .dot[aria-selected="true"] { background: var(--accent); }

/* Accesibilidad: teclado sobre summary, botones, dots */
.car-btn:focus, .car-dots .dot:focus { outline: 2px solid var(--accent2); outline-offset: 2px; }

/* Grid de 4 columnas para el formulario */
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); gap: 14px; }

/* Que inputs y selects ocupen todo el ancho de su celda */
#form-somatotip input,
#form-somatotip select { width: 100%; }

/* Responsive: 4→2→1 columnas */
@media (max-width: 900px) {
  .grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .grid.cols-4 { grid-template-columns: 1fr; }
}

/* Formulario en columna */
.form-vertical {
  display: flex;
  flex-direction: column;
  gap: 14px; /* espacio entre campos */
}

.form-vertical label {
  font-weight: 600;
  margin-bottom: 4px;
  display: block;
}

.form-vertical input,
.form-vertical select,
.form-vertical button {
  width: 100%;
  padding: 8px;
  font-size: 1rem;
}

.form-vertical button {
  margin-top: 10px;   /* separa el botón del último campo */
  padding: 10px;
  font-weight: 600;
}

.tip {
  margin-top: 6px;
  font-weight: 600;
}
.tip.normal { color: #166534; } /* verde */
.tip.baix   { color: #b45309; } /* ámbar */
.tip.alt    { color: #b91c1c; } /* rojo */

/* Taula orientativa IMC per a menors */
.tabla-imc-menors {
  margin-top: 12px;
  border-collapse: collapse;
  width: 100%;
  max-width: 640px;
}
.tabla-imc-menors th,
.tabla-imc-menors td {
  border: 1px solid #e5e7eb;
  padding: 6px 10px;
  text-align: center;
}
.tabla-imc-menors th {
  background: #f1f5f9;
  font-weight: 600;
}

/* Taules IMC per a menors */
.tabla-imc-menors {
  margin-top: 12px;
  border-collapse: collapse;
  width: 100%;
  max-width: 640px;
}
.tabla-imc-menors th, .tabla-imc-menors td {
  border: 1px solid #e5e7eb;
  padding: 6px 10px;
  text-align: center;
}
.tabla-imc-menors th {
  background: #f1f5f9;
  font-weight: 600;
}
.tabla-imc-menors tr.hl td {
  background: #fff7ed; /* resalta la fila de la edat */
  font-weight: 600;
}

/* Form vertical */
.form-vertical { display: flex; flex-direction: column; gap: 14px; }
.form-vertical label { font-weight: 600; margin-bottom: 4px; display: block; }
.form-vertical input, .form-vertical select, .form-vertical button { width: 100%; }

/* Separar un poco el botón */
.form-vertical button { margin-top: 10px; padding: 10px; font-weight: 600; }

/* Tip en color */
.tip { margin-top: 6px; font-weight: 600; }
.tip.normal { color: #166534; }
.tip.baix   { color: #b45309; }
.tip.alt    { color: #b91c1c; }

/* Taules menors */
.tabla-imc-menors { margin-top: 12px; border-collapse: collapse; width: 100%; max-width: 640px; }
.tabla-imc-menors th, .tabla-imc-menors td { border: 1px solid #e5e7eb; padding: 6px 10px; text-align: center; }
.tabla-imc-menors th { background: #f1f5f9; font-weight: 600; }
.tabla-imc-menors tr.hl td { background: #fff7ed; font-weight: 600; }

.tabla-imc-menors {
  margin-top: 12px;
  border-collapse: collapse;
  width: 100%;
  max-width: 640px;
}
.tabla-imc-menors th, .tabla-imc-menors td {
  border: 1px solid #e5e7eb;
  padding: 6px 10px;
  text-align: center;
}
.tabla-imc-menors th {
  background: #f1f5f9;
  font-weight: 600;
}
.tabla-imc-menors tr.hl td {
  background: #fff7ed; /* resalta la fila de esa edad */
  font-weight: 600;
}

#nota-details summary {
  cursor: pointer;
  font-weight: 600;
  margin-top: 10px;
}
#nota-details[open] summary::after {
  content: " ▲";
}
#nota-details summary::after {
  content: " ▼";
}

/* Grid 3 cols para dietes */
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); gap: 14px; }
@media (max-width: 900px) { .grid.cols-3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .grid.cols-3 { grid-template-columns: 1fr; } }

/* Lista bonita */
ul.bullets { margin: 0; padding-left: 18px; }
ul.bullets li { margin: 6px 0; }

.dietes-macros { margin: 8px 0 0 0; padding-left: 18px; }
.dietes-macros li { margin: 4px 0; }

/* Grid 3 columnas para dietes */
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); gap: 14px; }
@media (max-width: 900px) { .grid.cols-3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .grid.cols-3 { grid-template-columns: 1fr; } }

/* Listas */
ul.bullets { margin: 0; padding-left: 18px; }
ul.bullets li { margin: 6px 0; }

.dietes-macros { margin: 8px 0 0 0; padding-left: 18px; }
.dietes-macros li { margin: 4px 0; }

#dietes-pdf {
  margin-top: 8px;
  padding: 10px 14px;
  border-radius: 10px;
  border: none;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  color: #fff;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0,0,0,.08);
}
#dietes-pdf:hover { filter: brightness(0.95); }