/* =====================================================================
   NODAL Ingeniería · base común
   Cada diseño redefine los tokens (--c-*, --f-*) en su propia hoja.
   ===================================================================== */
:root {
    --petrol: #083646;
    --petrol-2: #0B4A5E;
    --teal: #0E7C86;
    --cyan: #3FC6D4;

    --c-bg: #ffffff;
    --c-ink: #0B1F27;
    --c-muted: #56707B;
    --c-line: #DCE5E8;
    --c-card: #ffffff;
    --c-accent: var(--petrol);
    --c-accent-ink: #ffffff;
    --c-focus: #3FC6D4;

    --f-sans: 'Manrope', system-ui, -apple-system, 'Segoe UI', sans-serif;
    --f-display: var(--f-sans);
    --f-mono: 'Geist Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;

    --wrap: 1200px;
    --gutter: clamp(16px, 4vw, 32px);
    --radius: 14px;
    --ease: cubic-bezier(.16, 1, .3, 1);
    --ease-io: cubic-bezier(.65, 0, .35, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--c-bg);
    color: var(--c-ink);
    font-family: var(--f-sans);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
}
img, svg, video, canvas { display: block; max-width: 100%; }
img { height: auto; }
/* <picture> no genera caja propia: la <img> se comporta como hija directa del contenedor. */
picture { display: contents; }
a { color: inherit; }
button, input, select, textarea { font: inherit; color: inherit; }
h1, h2, h3, h4, p, ul, ol, figure { margin: 0; }
:where(ul, ol)[role="list"] { list-style: none; padding: 0; }
::selection { background: color-mix(in srgb, var(--c-accent) 22%, transparent); }
:focus-visible { outline: 2px solid var(--c-focus); outline-offset: 3px; border-radius: 4px; }

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }
.sr, .sr-only { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.ico { width: 1.15em; height: 1.15em; flex: none; }

.saltar {
    position: fixed; top: 12px; left: 12px; z-index: 1000;
    padding: 10px 16px; border-radius: 8px;
    background: var(--c-ink); color: var(--c-bg); text-decoration: none; font-weight: 600;
    transform: translateY(-160%); transition: transform .2s;
}
.saltar:focus { transform: none; }

/* ── Aparición al hacer scroll (solo con JS: sin JS todo es visible) ──
   Un elemento solo se oculta cuando nodal.js le pone .rv ("armado"): los del
   primer pantallazo al cargar y los de más abajo con el primer scroll real.
   Así nada queda oculto para quien no hace scroll (renderizadores de Bing y
   Google, capturas, lectores), que ven todo el texto como sin JS. */
.js [data-reveal] {
    transition: opacity .9s var(--ease), transform .9s var(--ease), filter .9s var(--ease);
    transition-delay: var(--d, 0ms);
}
.js [data-reveal].rv { opacity: 0; transform: translate3d(0, 28px, 0); }
.js [data-reveal="fade"].rv { transform: none; }
.js [data-reveal="blur"].rv { filter: blur(10px); transform: translate3d(0, 12px, 0); }
.js [data-reveal="scale"].rv { transform: scale(.96); }
.js [data-reveal].rv.is-in { opacity: 1; transform: none; filter: none; }

/* Titulares que entran palabra a palabra ([data-split]) */
.js [data-split] .w { display: inline-block; overflow: hidden; vertical-align: top; padding: .02em .02em .18em; margin: -.02em -.02em -.18em; }
.js [data-split] .w > span {
    display: inline-block;
    transition: transform 1s var(--ease);
    transition-delay: calc(var(--i, 0) * 55ms + var(--d, 0ms));
}
.js [data-split].rv .w > span { transform: translate3d(0, 105%, 0); }
.js [data-split].rv.is-in .w > span { transform: none; }

/* ── Botones base ─────────────────────────────────────────────────── */
.btn {
    --bg: var(--c-accent); --fg: var(--c-accent-ink);
    position: relative; display: inline-flex; align-items: center; justify-content: center; gap: .55em;
    padding: .85em 1.35em; border: 0; border-radius: 999px;
    background: var(--bg); color: var(--fg);
    font-weight: 700; font-size: .95rem; letter-spacing: -.005em; line-height: 1.1;
    text-decoration: none; cursor: pointer; white-space: nowrap;
    transition: transform .35s var(--ease), box-shadow .35s var(--ease), background .25s, color .25s;
}
.btn .ico { transition: transform .35s var(--ease); }
.btn:hover .ico { transform: translateX(3px); }
.btn:active { transform: scale(.98); }

/* ── Formulario base ──────────────────────────────────────────────── */
.form-presupuesto { display: grid; gap: 18px; }
.form-presupuesto .campos { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.form-presupuesto .campo { display: grid; gap: 6px; min-width: 0; }
.form-presupuesto .campo--ancho { grid-column: 1 / -1; }
.form-presupuesto label { font-size: .82rem; font-weight: 600; }
.form-presupuesto label small { font-weight: 400; opacity: .7; }
.form-presupuesto input, .form-presupuesto select, .form-presupuesto textarea {
    width: 100%; padding: .8em .95em; border-radius: 10px;
    border: 1px solid var(--c-line); background: var(--c-card);
    transition: border-color .2s, box-shadow .2s;
}
.form-presupuesto textarea { resize: vertical; min-height: 110px; }
.form-presupuesto input:focus, .form-presupuesto select:focus, .form-presupuesto textarea:focus {
    outline: none; border-color: var(--c-focus); box-shadow: 0 0 0 4px color-mix(in srgb, var(--c-focus) 22%, transparent);
}
.form-presupuesto .check { display: flex; gap: 10px; align-items: flex-start; font-size: .85rem; color: var(--c-muted); }
.form-presupuesto .check input { width: 18px; height: 18px; margin-top: 2px; accent-color: var(--c-accent); flex: none; }
.form-presupuesto button[type="submit"] { justify-self: start; }
.form-error { padding: 12px 14px; border-radius: 10px; background: #FDECEC; color: #8A1C1C; font-size: .9rem; }
.form-ok { display: flex; gap: 14px; align-items: flex-start; padding: 20px; border-radius: var(--radius); background: color-mix(in srgb, var(--teal) 10%, var(--c-card)); }
.form-ok .ico { width: 28px; height: 28px; color: var(--teal); }
.form-ok p { color: var(--c-muted); margin-top: 4px; }
@media (max-width: 640px) { .form-presupuesto .campos { grid-template-columns: 1fr; } }

/* ── Acordeón FAQ (details/summary nativo, animado por JS) ─────────── */
details > summary { list-style: none; cursor: pointer; }
details > summary::-webkit-details-marker { display: none; }

/* ── Banner de cookies ────────────────────────────────────────────── */
.cookies { position: fixed; inset: auto 16px 16px 16px; z-index: 900; display: flex; justify-content: center; pointer-events: none; }
.cookies[hidden] { display: none; }
.cookies__caja {
    pointer-events: auto; width: min(640px, 100%);
    padding: 22px 22px 18px; border-radius: 18px;
    background: #fff; color: #0B1F27; border: 1px solid #DCE5E8;
    box-shadow: 0 24px 60px -20px rgba(8, 54, 70, .35), 0 2px 6px rgba(8, 54, 70, .06);
    font-family: var(--f-sans);
    animation: cookiesIn .6s var(--ease) both;
}
@keyframes cookiesIn { from { opacity: 0; transform: translateY(18px) scale(.98); } }
.cookies__titulo { font-weight: 800; font-size: 1rem; margin-bottom: 6px; }
.cookies__texto { font-size: .88rem; line-height: 1.55; color: #56707B; }
.cookies__texto a { color: #083646; font-weight: 600; }
.cookies__acciones { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.cookies__btn { flex: 1 1 auto; padding: .7em 1.1em; border-radius: 999px; font-weight: 700; font-size: .85rem; cursor: pointer; border: 1px solid #083646; transition: background .2s, color .2s; }
.cookies__btn--linea { background: #fff; color: #083646; }
.cookies__btn--linea:hover { background: #F0F5F6; }
.cookies__btn--lleno { background: #083646; color: #fff; }
.cookies__btn--lleno:hover { background: #0B4A5E; }
.cookies__lista { list-style: none; margin: 10px 0 0; padding: 0; display: grid; gap: 2px; }
.cookies__lista li { display: flex; gap: 16px; align-items: center; justify-content: space-between; padding: 12px 0; border-top: 1px solid #EDF2F4; }
.cookies__lista strong { display: block; font-size: .9rem; }
.cookies__lista span { font-size: .8rem; color: #56707B; }
.cookies__siempre { flex: none; font-size: .72rem !important; font-weight: 700; color: #0E7C86 !important; }
.interruptor { position: relative; flex: none; width: 42px; height: 24px; cursor: pointer; }
.interruptor input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.interruptor span { position: absolute; inset: 0; border-radius: 999px; background: #CBD7DB; transition: background .2s; }
.interruptor span::after { content: ''; position: absolute; top: 3px; left: 3px; width: 18px; height: 18px; border-radius: 50%; background: #fff; box-shadow: 0 1px 3px rgba(0,0,0,.2); transition: transform .25s var(--ease); }
.interruptor input:checked + span { background: #083646; }
.interruptor input:checked + span::after { transform: translateX(18px); }
.interruptor input:focus-visible + span { outline: 2px solid var(--c-focus); outline-offset: 2px; }

/* ── Movimiento reducido: sin animaciones ─────────────────────────── */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: .001ms !important; animation-delay: 0s !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; transition-delay: 0s !important; scroll-behavior: auto !important; }
    .js [data-reveal], .js [data-split] .w > span { opacity: 1 !important; transform: none !important; filter: none !important; }
}