/* assets/css/style.css
   Identitat Bombas Gens: sans-serif geomètrica, blau #0D12A6, groc #FFCD18 i blanc.
   Fons blanc, títols blaus en negreta, botons groc "pill" i barres blaves. */


@font-face {
    font-family: 'TT Firs Neue';
    src: url('../font/TTFirsNeue-DemiBold.woff2') format('woff2'),
        url('../font/TTFirsNeue-DemiBold.woff') format('woff');
    font-weight: 600;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'TT Firs Neue';
    src: url('../font/TTFirsNeue-Regular.woff2') format('woff2'),
        url('../font/TTFirsNeue-Regular.woff') format('woff');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'TT Firs Neue';
    src: url('../font/TTFirsNeue-Thin.woff2') format('woff2'),
        url('../font/TTFirsNeue-Thin.woff') format('woff');
    font-weight: 100;
    font-style: normal;
    font-display: swap;
}


:root {
    --blue:   #0D12A6;
    --yellow: #FFCD18;
    --white:  #ffffff;
    --blue-soft: rgba(13, 18, 166, .55);
    --line:   rgba(13, 18, 166, .25);
    --error:  #d1241a;

    --sans: 'TT Firs Neue', system-ui, -apple-system, 'Segoe UI', sans-serif;

    --ease: cubic-bezier(.22, .7, .2, 1);
    --dur:  .55s;
    --curtain: .45s;       /* ha de coincidir amb CURTAIN_MS a form.js */
}

*, *::before, *::after { box-sizing: border-box; }

html, body { height: 100%; margin: 0; }

body {
    font-family: var(--sans);
    font-weight: 400;
    color: var(--blue);
    background: var(--white);
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ---------- Barra de progrés ---------- */
.progress {
    position: fixed; top: 0; left: 0; right: 0;
    height: 6px; background: var(--line); z-index: 40;
}
.progress__bar {
    height: 100%; width: 0;
    background: var(--yellow);
    transition: width var(--dur) var(--ease);
}

/* ---------- Capçalera amb logo ---------- */
.header {
    position: fixed; top: 6px; left: 0; right: 0;
    display: flex; justify-content: space-between; align-items: center;
    padding: 1rem clamp(1.25rem, 4vw, 3rem);
    background: var(--white); z-index: 10;
}
.header__logo { display: block; height: 64px; width: auto; }
.header__counter {
    font-size: .9rem; font-weight: 500; letter-spacing: .08em;
    text-transform: uppercase;
}

/* ---------- Escenari i pantalles ---------- */
.stage { position: relative; height: 100%; }

.slide {
    position: absolute; inset: 0;
    display: flex; flex-direction: column; justify-content: center;
    padding: 8rem clamp(1.25rem, 8vw, 9rem) 8rem;
    max-width: 1100px; margin: 0 auto;
    opacity: 0; visibility: hidden; pointer-events: none;
    transform: translateY(40px);
    transition: opacity var(--dur) var(--ease),
                transform var(--dur) var(--ease),
                visibility 0s linear var(--dur);
}
.slide.is-active {
    opacity: 1; visibility: visible; pointer-events: auto;
    transform: none;
    transition-delay: 0s;
}
.slide.is-past { transform: translateY(-40px); }

.slide__number {
    display: inline-block; align-self: flex-start;
    background: var(--yellow); color: var(--blue);
    font-size: .85rem; font-weight: 600; letter-spacing: .1em;
    padding: .3rem .9rem; border-radius: 999px;
    margin-bottom: 1.5rem;
}
.slide__title {
    font-weight: 700;
    font-size: clamp(2.2rem, 6vw, 4.2rem); line-height: 1.05;
    margin: 0 0 .75rem; letter-spacing: -.02em;
}
.slide__title .req { color: var(--blue-soft); font-size: .5em; vertical-align: super; }
.slide__desc { margin: 0 0 2.5rem; font-size: 1.1rem; color: var(--blue-soft); }

/* ---------- Camps de text ---------- */
.field {
    width: 100%; max-width: 760px;
    background: transparent; border: 0;
    border-bottom: 2px solid var(--line);
    padding: .6rem 0; outline: none; border-radius: 0;
    font: 400 clamp(1.3rem, 3vw, 1.9rem)/1.4 var(--sans);
    color: var(--blue);
    transition: border-color .3s;
}
.field::placeholder { color: var(--blue-soft); opacity: .6; }
.field:focus { border-bottom-color: var(--blue); }
textarea.field { resize: none; min-height: 7rem; }

/* ---------- Opcions (A, B, C...) ---------- */
.choices { display: flex; flex-direction: column; gap: .75rem; max-width: 460px; }
.choice {
    display: flex; align-items: center; gap: 1rem;
    padding: .85rem 1.1rem; text-align: left; cursor: pointer;
    background: var(--white); color: var(--blue);
    border: 1.5px solid var(--blue); border-radius: 6px;
    font: 500 1.05rem var(--sans);
    transition: background .25s, color .25s, transform .25s var(--ease);
}
.choice:hover { transform: translateX(4px); background: rgba(255, 205, 24, .25); }
.choice kbd {
    display: inline-grid; place-items: center; width: 1.8rem; height: 1.8rem;
    border: 1.5px solid currentColor; border-radius: 4px; font: 600 .8rem var(--sans);
}
.choice.is-selected { background: var(--yellow); border-color: var(--yellow); }

/* ---------- Valoració (estrelles) ---------- */
.rating { display: flex; gap: .4rem; }
.star {
    background: none; border: 0; cursor: pointer; padding: .1rem;
    font-size: clamp(2.6rem, 8vw, 4rem); line-height: 1;
    color: var(--line);
    transition: color .2s, transform .25s var(--ease);
}
.star:hover { transform: scale(1.15) rotate(-6deg); }
.star.is-on { color: var(--yellow); -webkit-text-stroke: 2px var(--blue); }

/* ---------- Error ---------- */
.error {
    min-height: 1.4rem; margin-top: 1rem;
    color: var(--error); font-size: .95rem; font-weight: 500;
}
.slide.has-error .field { border-bottom-color: var(--error); }
.slide.has-error { animation: shake .35s; }
@keyframes shake {
    25% { translate: -6px 0; } 75% { translate: 6px 0; }
}

/* ---------- Pantalla final ---------- */
.spinner {
    width: 32px; height: 32px; border: 3px solid var(--line);
    border-top-color: var(--blue); border-radius: 50%;
    animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Navegació inferior (banda blava) ---------- */
.nav {
    position: fixed; left: 0; right: 0; bottom: 0;
    display: flex; justify-content: space-between; align-items: center;
    padding: 1rem clamp(1.25rem, 4vw, 3rem); z-index: 10;
    background: var(--blue); color: var(--white);
    transition: opacity .4s, transform .4s var(--ease);
}
.nav.is-hidden { opacity: 0; transform: translateY(100%); pointer-events: none; }
.nav__hint { font-size: .85rem; opacity: .85; }
.nav__hint kbd {
    font: 500 .75rem var(--sans); border: 1px solid rgba(255,255,255,.6);
    border-radius: 4px; padding: .15rem .45rem;
}

.btn {
    font: 500 .95rem var(--sans); letter-spacing: .06em; text-transform: uppercase;
    padding: .75rem 1.8rem; cursor: pointer; border-radius: 999px;
    border: 1.5px solid transparent;
    transition: background .3s, color .3s, opacity .3s, transform .2s;
}
.btn:active { transform: scale(.97); }
.btn--primary { background: var(--yellow); color: var(--blue); border-color: var(--yellow); }
.btn--primary:hover { background: var(--white); border-color: var(--white); }
.btn--ghost { background: transparent; color: var(--white); border-color: var(--white); }
.btn--ghost:hover { background: var(--white); color: var(--blue); }
.btn:disabled { opacity: .3; cursor: default; pointer-events: none; }
.btn:focus-visible, .choice:focus-visible, .star:focus-visible {
    outline: 3px solid var(--yellow); outline-offset: 3px;
}

/* Botons dins la pantalla final (fons blanc) */
.slide .btn--ghost { color: var(--blue); border-color: var(--blue); }
.slide .btn--ghost:hover { background: var(--blue); color: var(--white); }
.slide .btn--primary:hover { background: var(--blue); color: var(--white); border-color: var(--blue); }

@media (max-width: 600px) {
    .nav__hint { display: none; }
    .header__logo { height: 48px; }
    .slide { padding-top: 6.5rem; }
}
@media (prefers-reduced-motion: reduce) {
    * { transition-duration: .01s !important; animation: none !important; }
}

/* Botons d'acció de la pantalla final */
.actions { display: flex; gap: 1rem; flex-wrap: wrap; }

/* ---------- Cortina de transició ---------- */
.curtain {
    position: fixed; inset: 0; z-index: 30;
    background: var(--blue);
    transform: translateY(100%);                 /* amagada sota la pantalla */
    transition: transform var(--curtain) cubic-bezier(.65, 0, .35, 1);
    pointer-events: none;
}
.curtain.is-up { transform: translateY(0); }     /* puja i tapa; en treure la classe, baixa */

/* ---------- Pantalla final: fons blau, text blanc, logo blanc ---------- */
body { transition: background-color .01s; }
body.is-thanks { background: var(--blue); color: var(--white); }
body.is-thanks .header { background: var(--blue); color: var(--white); }
body.is-thanks .header__logo { filter: brightness(0) invert(1); }
body.is-thanks .slide__desc { color: rgba(255, 255, 255, .8); }
body.is-thanks .progress { background: rgba(255, 255, 255, .25); }
body.is-thanks .spinner { border-color: rgba(255, 255, 255, .3); border-top-color: var(--white); }
body.is-thanks .slide .btn--ghost { color: var(--white); border-color: var(--white); }
body.is-thanks .slide .btn--ghost:hover { background: var(--white); color: var(--blue); }
body.is-thanks .slide .btn--primary:hover { background: var(--white); color: var(--blue); border-color: var(--white); }

/* =====================  Enquesta: escales, matrius i selecció múltiple  ===================== */

/* Pantalles més altes que la finestra: scroll dins de la pantalla */
.slide {
    overflow-y: auto;
    justify-content: safe center;       /* si el contingut no hi cap, comença a dalt (sense retallar-se) */
    overscroll-behavior: contain;
}
.field[hidden] { display: none; }

/* Capçalera de pregunta: número + bloc */
.slide__meta { display: flex; align-items: center; flex-wrap: wrap; gap: .75rem; margin-bottom: 1.5rem; }
.slide__meta .slide__number { margin-bottom: 0; }
.slide__section { font-size: .85rem; font-weight: 500; letter-spacing: .08em; text-transform: uppercase; color: var(--blue-soft); }
.slide__title { font-size: clamp(1.8rem, 4.6vw, 3.2rem); }

/* ---------- Valoració amb estrelles ---------- */
.scalebox { display: inline-flex; flex-direction: column; gap: .9rem; align-self: flex-start; max-width: 100%; }
.scale { display: flex; flex-wrap: wrap; align-items: center; gap: .15rem; }
.scale__btn { cursor: pointer; background: none; border: 0; padding: 0; font-family: var(--sans); color: var(--blue); }
.scale__star {
    font-size: clamp(2.2rem, 5.6vw, 3.4rem); line-height: 1; padding: .1rem;
    color: transparent; -webkit-text-stroke: 1.5px var(--blue);          /* estrella buida */
    transition: color .15s, transform .25s var(--ease);
}
.scale__star.is-hover { color: rgba(255, 205, 24, .55); }               /* vista prèvia */
.scale__star.is-on { color: var(--yellow); }                            /* estrella plena */
.scale__star:hover { transform: scale(1.12) rotate(-6deg); }
.scale__zero {
    width: 2.2rem; height: 2.2rem; margin-right: .6rem; border-radius: 50%;
    border: 1.5px solid var(--blue); font-weight: 500; font-size: .95rem;
    transition: background .2s, transform .25s var(--ease);
}
.scale__zero:hover { background: rgba(255, 205, 24, .3); transform: scale(1.1); }
.scale__zero.is-on { background: var(--yellow); border-color: var(--yellow); }
.scale__btn:focus-visible { outline: 3px solid var(--yellow); outline-offset: 3px; border-radius: 6px; }
.scale__labels { display: flex; justify-content: space-between; gap: 1.5rem; font-size: .9rem; color: var(--blue-soft); }

/* ---------- Matriu (diverses files amb escala) ---------- */
.matrix { display: flex; flex-direction: column; gap: 1rem; max-width: 860px; }
.matrix > .scale__labels { padding-bottom: .5rem; border-bottom: 1px solid var(--line); }
.matrix__row { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 1.25rem; }
.matrix__label { font-size: 1.1rem; line-height: 1.3; }
.matrix__row .scale__star { font-size: 2.6rem; }

/* ---------- Opcions en graella (llistes llargues) i selecció múltiple ---------- */
.choices--grid {
    max-width: none; display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 290px), 1fr));
    gap: .6rem .9rem;
}
.choices--grid .choice { padding: .7rem 1rem; font-size: 1rem; line-height: 1.25; }
.choice--multi.is-selected { background: var(--yellow); }
.other-input { margin-top: 1.25rem; max-width: 560px; font-size: 1.3rem; }

/* ---------- Pantalla final ---------- */
.slide--thanks .slide__title { max-width: 14ch; font-size: clamp(2.4rem, 7vw, 5rem); }
.slide--thanks .slide__desc { font-size: 1.3rem; max-width: 36rem; }

@media (max-width: 700px) {
    .matrix__row { grid-template-columns: 1fr; gap: .5rem; }
    .matrix__row .scale { justify-content: flex-start; }
    .matrix { gap: 1.4rem; }
    .scale__labels { font-size: .8rem; }
}