/* Arcos 61 — brand: ink #131311, stone #B4B2B0, paper #F2F1EF (brandbook by napperon, 2021) */
:root {
  --ink: #131311;
  --stone: #b4b2b0;
  --paper: #f2f1ef;
  --white: #fff;
  --olaia: #b8507f; /* Judas tree blossom on Rua dos Arcos; accent only */
  --serif: "Hatton", "Didot", "Bodoni 72", "Bodoni Moda", "Playfair Display", Georgia, serif;
  --sans: "Montserrat", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --w: 72rem;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font: 300 1rem/1.7 var(--sans); color: var(--ink); background: var(--paper); }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-underline-offset: .2em; }
h1, h2, h3 { font-family: var(--serif); font-weight: 300; line-height: 1.15; letter-spacing: .01em; margin: 0 0 .6em; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
h3 { font-size: 1.35rem; }
p { margin: 0 0 1em; }
.wrap { max-width: var(--w); margin: 0 auto; padding: 0 1.25rem; }
.eyebrow { font-size: .75rem; letter-spacing: .25em; text-transform: uppercase; color: #6b6966; margin-bottom: 1rem; }
.star::before { content: "✦"; margin-right: .5em; font-size: .8em; }

/* header */
.top { position: sticky; top: 0; z-index: 10; background: rgba(242,241,239,.94); backdrop-filter: blur(6px); border-bottom: 1px solid #dcdad7; }
.top .wrap { display: flex; align-items: center; justify-content: space-between; height: 4rem; gap: 1rem; }
.top .logo { width: 9.5rem; color: var(--ink); }
.top nav { display: flex; gap: 1.4rem; font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; }
.top nav a { text-decoration: none; }
.top nav a:hover { text-decoration: underline; }
.lang { font-size: .8rem; }
@media (max-width: 760px) { .top nav .opt { display: none; } }

/* hero */
.hero { position: relative; min-height: 88vh; display: grid; align-items: end; color: var(--white); }
.hero picture img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(19,19,17,.15) 0%, rgba(19,19,17,.45) 45%, rgba(19,19,17,.8)); }
.hero .wrap { position: relative; z-index: 1; padding-bottom: 4rem; }
.hero .logo-v { width: 13rem; color: var(--white); margin-bottom: 1.5rem; }
.hero p { max-width: 36rem; font-size: 1.1rem; }

.btn { display: inline-block; padding: .9rem 1.6rem; background: var(--ink); color: var(--white); text-decoration: none; letter-spacing: .14em; text-transform: uppercase; font-size: .8rem; border: 1px solid var(--ink); cursor: pointer; font-family: var(--sans); }
.btn.light { background: var(--white); color: var(--ink); border-color: var(--white); }
.btn.ghost { background: transparent; color: var(--ink); }
.btn + .btn { margin-left: .6rem; }

section { padding: 5.5rem 0; }
section.dark { background: var(--ink); color: var(--paper); }
section.white { background: var(--white); }

/* facts strip */
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr)); gap: 1.5rem; margin: 2.5rem 0 0; padding: 0; list-style: none; }
.facts li { border-top: 1px solid var(--stone); padding-top: .8rem; }
.facts b { display: block; font: 300 1.9rem/1.2 var(--serif); }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 3.5rem; align-items: center; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; } }

/* gallery */
.gallery { display: grid; grid-template-columns: repeat(4, 1fr); gap: .5rem; margin-top: 2.5rem; }
.gallery figure { margin: 0; overflow: hidden; aspect-ratio: 3 / 4; }
.gallery figure.wide { grid-column: span 2; aspect-ratio: 3 / 2; }
.gallery img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.gallery figure:hover img { transform: scale(1.03); }
@media (max-width: 760px) { .gallery { grid-template-columns: repeat(2, 1fr); } }

.amen { columns: 2 16rem; column-gap: 2.5rem; padding: 0; list-style: none; }
.amen li { break-inside: avoid; padding: .45rem 0; border-bottom: 1px solid #dcdad7; }
.amen li::before { content: "✦"; font-size: .7em; margin-right: .7em; color: #8a8885; }

.units { display: grid; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); gap: 1.5rem; margin-top: 2rem; }
.unit { background: var(--paper); padding: 1.5rem; }
.unit .m2 { font: 300 2rem/1 var(--serif); }

/* map + location list */
.near { list-style: none; padding: 0; margin: 0; }
.near li { display: flex; justify-content: space-between; gap: 1rem; padding: .55rem 0; border-bottom: 1px solid rgba(180,178,176,.35); }
.near span:last-child { color: var(--stone); white-space: nowrap; }
.map { aspect-ratio: 4 / 3; width: 100%; border: 0; filter: grayscale(1) contrast(1.05); }

/* faq */
details { border-bottom: 1px solid #dcdad7; padding: 1.1rem 0; }
summary { cursor: pointer; font: 300 1.2rem/1.4 var(--serif); list-style: none; }
summary::after { content: "+"; float: right; font-family: var(--sans); }
details[open] summary::after { content: "–"; }
details p { margin: .8rem 0 0; max-width: 46rem; }

/* booking form */
form.req { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem 1.25rem; margin-top: 2rem; }
form.req label { display: grid; gap: .35rem; font-size: .75rem; letter-spacing: .12em; text-transform: uppercase; }
form.req .full { grid-column: 1 / -1; }
form.req input, form.req select, form.req textarea { font: 300 1rem var(--sans); padding: .75rem .8rem; border: 1px solid var(--stone); background: var(--white); color: var(--ink); border-radius: 0; }
form.req textarea { min-height: 6rem; resize: vertical; }
form.req .actions { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: .6rem; align-items: center; }
form.req .note { font-size: .85rem; color: #6b6966; }
@media (max-width: 640px) { form.req { grid-template-columns: 1fr; } }
.dark form.req .note { color: var(--stone); }

.callout { border-left: 2px solid var(--olaia); padding: .2rem 0 .2rem 1.2rem; margin: 2rem 0; }

footer { background: var(--ink); color: var(--stone); font-size: .82rem; padding: 3.5rem 0 2.5rem; }
footer .wrap { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 2rem; }
footer .logo { width: 10rem; color: var(--paper); margin-bottom: 1rem; }
footer a { color: var(--paper); }
footer p { margin: 0 0 .4rem; }
@media (max-width: 760px) { footer .wrap { grid-template-columns: 1fr; } }