/* Apartment Estera — base: tokens, type, nav, hero, shared section furniture. Approved v2 design. */
:root {
  --blue: #2a6496;
  --adriatic: #4a9ebb;
  --sand: #f5f0e8;
  --stone: #8b7355;
  --dark: #1a2a35;
  --white: #fdfcf9;
  --accent: #c9a96e;
  --serif: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  --sans: "Jost", "Helvetica Neue", Arial, sans-serif;
  --gutter: clamp(1.25rem, 5vw, 4rem);
  --section: clamp(4.5rem, 10vw, 8rem);
  --nav-h: 76px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--nav-h); -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--white);
  color: var(--dark);
  font-family: var(--sans);
  font-weight: 300;
  font-size: 1.0625rem;
  line-height: 1.75;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--blue); }
a:hover { color: var(--accent); }
h1, h2, h3 { font-family: var(--serif); font-weight: 300; line-height: 1.15; margin: 0; }
h2 { font-size: clamp(2.2rem, 5vw, 3.4rem); }
h2 em, h1 em { font-style: italic; color: var(--adriatic); }
p { margin: 0 0 1.2em; }
.wrap { width: min(1200px, 100%); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: var(--section) 0; }
.section--sand { background: var(--sand); }
.label {
  display: block;
  font-size: .72rem;
  font-weight: 400;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--stone);
  margin-bottom: 1rem;
}
.section-head { text-align: center; margin-bottom: clamp(2.5rem, 6vw, 4rem); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* ---- buttons ---- */
.btn {
  display: inline-block;
  font-family: var(--sans);
  font-size: .78rem;
  font-weight: 400;
  letter-spacing: .2em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 1rem 2.4rem;
  border: 1px solid currentColor;
  background: transparent;
  color: var(--white);
  cursor: pointer;
  transition: background .3s, color .3s, border-color .3s;
}
.btn:hover { background: var(--white); color: var(--dark); border-color: var(--white); }
.btn--solid { background: var(--blue); border-color: var(--blue); color: var(--white); }
.btn--solid:hover { background: var(--dark); border-color: var(--dark); color: var(--white); }
.btn[disabled] { opacity: .6; cursor: wait; }

/* ---- nav ---- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  height: var(--nav-h);
  display: flex; align-items: center;
  transition: background .35s, box-shadow .35s, backdrop-filter .35s;
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; width: 100%; }
.nav__logo {
  font-family: var(--serif); font-size: 1.7rem; font-weight: 400; letter-spacing: .06em;
  color: var(--white); text-decoration: none; white-space: nowrap;
  text-shadow: 0 1px 12px rgba(26, 42, 53, .35);
}
.nav__logo em { font-style: italic; font-weight: 300; }
.nav__links { display: flex; align-items: center; gap: clamp(1rem, 2.4vw, 2.2rem); list-style: none; margin: 0; padding: 0; }
.nav__links a {
  color: var(--white); text-decoration: none;
  font-size: .75rem; font-weight: 300; letter-spacing: .18em; text-transform: uppercase;
  transition: color .25s;
}
.nav__links a:hover { color: var(--accent); }
.nav.is-scrolled {
  background: rgba(253, 252, 249, .96);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 2px 24px rgba(26, 42, 53, .08);
}
.nav.is-scrolled .nav__logo { color: var(--dark); text-shadow: none; }
.nav.is-scrolled .nav__links a { color: var(--dark); }
.nav.is-scrolled .nav__links a:hover { color: var(--accent); }

.lang {
  font-family: var(--sans); font-size: .72rem; letter-spacing: .14em; text-transform: uppercase;
  background: transparent; color: inherit; border: 1px solid currentColor; border-radius: 0;
  padding: .35rem .5rem; cursor: pointer; min-height: 32px;
}
.nav .lang { color: var(--white); }
.nav.is-scrolled .lang { color: var(--dark); }
.lang option { color: var(--dark); }

.nav__toggle {
  display: none; width: 44px; height: 44px; padding: 10px;
  background: none; border: 0; cursor: pointer; color: var(--white);
}
.nav.is-scrolled .nav__toggle { color: var(--dark); }
.nav__toggle span { display: block; height: 1px; background: currentColor; margin: 6px 0; transition: transform .3s, opacity .3s; }
.nav.is-open .nav__toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav.is-open .nav__toggle span:nth-child(2) { opacity: 0; }
.nav.is-open .nav__toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 900px) {
  .nav__toggle { display: block; }
  .nav__links {
    position: fixed; inset: var(--nav-h) 0 auto 0;
    flex-direction: column; gap: 0; padding: .5rem 0 1.5rem;
    background: rgba(253, 252, 249, .98); box-shadow: 0 12px 24px rgba(26, 42, 53, .08);
    transform: translateY(-8px); opacity: 0; visibility: hidden; transition: opacity .25s, transform .25s, visibility .25s;
  }
  .nav.is-open .nav__links { opacity: 1; visibility: visible; transform: none; }
  .nav__links li { width: 100%; text-align: center; }
  .nav__links a { display: block; padding: .85rem 1rem; color: var(--dark); font-size: .82rem; }
  .nav.is-open { background: rgba(253, 252, 249, .98); }
  .nav.is-open .nav__logo, .nav.is-open .nav__toggle { color: var(--dark); text-shadow: none; }
  .nav .nav__links .lang { color: var(--dark); margin-top: .5rem; }
}

/* ---- hero ---- */
.hero {
  position: relative; min-height: 100vh; min-height: 100svh;
  display: flex; align-items: center; justify-content: center; text-align: center;
  color: var(--white); overflow: hidden;
  background: linear-gradient(180deg, var(--adriatic), var(--blue));
}
.hero__img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(26, 42, 53, .35) 0%, rgba(26, 42, 53, .15) 45%, rgba(26, 42, 53, .55) 100%);
}
.hero__content { position: relative; z-index: 1; padding: 0 var(--gutter); max-width: 900px; }
.hero__kicker { font-size: .78rem; letter-spacing: .32em; text-transform: uppercase; font-weight: 300; margin-bottom: 1.4rem; }
.hero h1 { font-size: clamp(3.2rem, 11vw, 7rem); font-weight: 300; letter-spacing: .02em; margin-bottom: 1rem; }
.hero__tagline { font-family: var(--serif); font-style: italic; font-size: clamp(1.25rem, 3vw, 1.7rem); margin-bottom: 2.6rem; opacity: .95; }
.hero__scroll {
  position: absolute; bottom: 2rem; left: 50%; z-index: 1; width: 1px; height: 56px;
  background: linear-gradient(var(--white), transparent); transform: translateX(-50%);
}

/* ---- footer ---- */
.footer { background: var(--dark); color: rgba(253, 252, 249, .75); text-align: center; padding: 3.5rem 0 2.5rem; font-size: .9rem; }
.footer__logo { font-family: var(--serif); font-size: 2rem; color: var(--white); margin-bottom: .4rem; }
.footer a { color: rgba(253, 252, 249, .85); text-decoration: none; }
.footer a:hover { color: var(--accent); }
.footer__line { margin: .3rem 0; }
.footer__small { font-size: .78rem; letter-spacing: .06em; margin-top: 1.4rem; opacity: .7; }
.footer__mt { font-size: .78rem; font-style: italic; margin-top: .6rem; opacity: .7; }