/* ===== Kiril Architects — minimal editorial monochrome ===== */
:root {
  --color-primary: #171717;
  --color-accent: #A16207;
  --color-bg: #ffffff;
  --color-muted: #f5f5f4;
  --color-border: #e7e5e4;
  --color-fg: #171717;
  --color-fg-soft: #57534e;
  --color-fg-faint: #a8a29e;

  --font-head: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Archivo', system-ui, sans-serif;

  --maxw: 1280px;
  --gutter: clamp(1.25rem, 4vw, 4rem);
  --nav-h: 72px;

  --s-1: 0.5rem; --s-2: 1rem; --s-3: 1.5rem; --s-4: 2rem;
  --s-6: 3rem; --s-8: 4rem; --s-12: 6rem; --s-16: 8rem;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-fg);
  background: var(--color-bg);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0;
}
h1 { font-size: clamp(2.5rem, 6vw, 5rem); }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.75rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.5rem); }

.wrap { max-width: var(--maxw); margin: 0 auto; padding-inline: var(--gutter); }
section { padding-block: clamp(4rem, 9vw, 8rem); }

.eyebrow {
  font-family: var(--font-head);
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--color-accent);
  margin-bottom: var(--s-3);
}
.lead { font-size: clamp(1.05rem, 1.6vw, 1.3rem); color: var(--color-fg-soft); max-width: 60ch; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--font-head); font-weight: 500; font-size: 0.9rem;
  letter-spacing: 0.02em;
  padding: 0.85rem 1.6rem;
  border: 1px solid var(--color-primary);
  background: var(--color-primary); color: #fff;
  cursor: pointer; transition: background .25s ease, color .25s ease, border-color .25s ease;
  border-radius: 0;
}
.btn:hover { background: transparent; color: var(--color-primary); }
.btn--ghost { background: transparent; color: var(--color-primary); }
.btn--ghost:hover { background: var(--color-primary); color: #fff; }
.btn--light { border-color: #fff; background: #fff; color: var(--color-primary); }
.btn--light:hover { background: transparent; color: #fff; }
.btn--outline-light { background: transparent; border-color: rgba(255,255,255,.6); color: #fff; }
.btn--outline-light:hover { background: #fff; color: var(--color-primary); border-color: #fff; }

/* ===== Navbar ===== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h); display: flex; align-items: center;
  transition: background .3s ease, border-color .3s ease;
  border-bottom: 1px solid transparent;
}
.nav__inner { width: 100%; max-width: var(--maxw); margin: 0 auto;
  padding-inline: var(--gutter); display: flex; align-items: center; justify-content: space-between; }
.nav__brand { font-family: var(--font-head); font-weight: 600; font-size: 1.1rem; letter-spacing: -0.01em; color:#fff; }
.nav__brand img { max-height: 34px; width: auto; }
.nav__links { display: flex; gap: clamp(1rem, 2.5vw, 2.5rem); align-items: center; }
.nav__links a {
  font-family: var(--font-head); font-size: 0.92rem; font-weight: 400; color:#fff;
  position: relative; padding: 2px 0;
}
.nav__links a::after {
  content:''; position:absolute; left:0; right:100%; bottom:-2px; height:1px;
  background: currentColor; transition: right .3s ease;
}
.nav__links a:hover::after { right: 0; }
.nav__toggle { display:none; background:none; border:0; cursor:pointer; padding:8px; color:#fff; }
.nav__toggle svg { width: 26px; height: 26px; }

/* scrolled / solid state */
.nav.is-solid { background: var(--color-bg); border-bottom-color: var(--color-border); }
.nav.is-solid .nav__brand, .nav.is-solid .nav__links a, .nav.is-solid .nav__toggle { color: var(--color-primary); }

@media (max-width: 860px) {
  .nav__toggle { display: inline-flex; }
  .nav__links {
    position: fixed; inset: var(--nav-h) 0 auto 0;
    flex-direction: column; gap: 0; align-items: stretch;
    background: var(--color-bg); border-bottom: 1px solid var(--color-border);
    padding: 0.5rem var(--gutter) 1.5rem;
    transform: translateY(-110%); transition: transform .35s ease;
  }
  .nav__links.is-open { transform: translateY(0); }
  .nav__links a { color: var(--color-primary); padding: 0.9rem 0; border-bottom: 1px solid var(--color-border); }
  .nav__links a::after { display:none; }
}

/* ===== Hero ===== */
.hero { position: relative; min-height: 100vh; min-height: 100dvh; display: flex; align-items: flex-end; color: #fff; }
.hero__bg { position: absolute; inset: 0; background-size: cover; background-position: center; }
.hero__bg::after { content:''; position:absolute; inset:0; background: linear-gradient(180deg, rgba(0,0,0,.35) 0%, rgba(0,0,0,.1) 40%, rgba(0,0,0,.65) 100%); }
.hero__inner { position: relative; z-index: 1; width: 100%; max-width: var(--maxw); margin: 0 auto;
  padding: 0 var(--gutter) clamp(3rem, 8vw, 6rem); }
.hero h1 { max-width: 16ch; }
.hero__sub { margin-top: var(--s-3); max-width: 52ch; font-size: clamp(1rem,1.5vw,1.25rem); color: rgba(255,255,255,.88); }
.hero__cta { margin-top: var(--s-6); display: flex; gap: var(--s-2); flex-wrap: wrap; }

/* ===== Section heading ===== */
.sec-head { display:flex; align-items:flex-end; justify-content:space-between; gap:2rem; margin-bottom: clamp(2rem,5vw,3.5rem); flex-wrap: wrap; }
.sec-head__text { max-width: 56ch; }
.sec-head h2 { margin-bottom: 0.6rem; }

/* ===== Projects grid ===== */
.proj-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(1rem, 2.5vw, 2rem); }
@media (max-width: 720px) { .proj-grid { grid-template-columns: 1fr; } }
.proj {
  position: relative; overflow: hidden; cursor: pointer; background: var(--color-muted);
  text-align: left;
}
.proj__media { aspect-ratio: 4/3; overflow: hidden; }
.proj__media img { width:100%; height:100%; object-fit: cover; transition: transform .7s cubic-bezier(.2,.7,.2,1); }
.proj:hover .proj__media img { transform: scale(1.05); }
.proj__meta { padding: 1.1rem 0.2rem 0.4rem; display:flex; align-items:baseline; justify-content:space-between; gap:1rem; }
.proj__title { font-family: var(--font-head); font-weight: 500; font-size: 1.15rem; letter-spacing:-0.01em; }
.proj__cat { font-family: var(--font-head); font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--color-fg-faint); white-space: nowrap; }
.proj__loc { font-size: 0.85rem; color: var(--color-fg-soft); padding: 0 0.2rem; }

/* filter bar */
.filters { display:flex; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 2.5rem; }
.filter {
  font-family: var(--font-head); font-size: 0.85rem; letter-spacing: .02em;
  padding: 0.45rem 1rem; border: 1px solid var(--color-border); background: transparent;
  cursor: pointer; color: var(--color-fg-soft); transition: all .2s ease;
}
.filter:hover { border-color: var(--color-primary); color: var(--color-primary); }
.filter.is-active { background: var(--color-primary); color:#fff; border-color: var(--color-primary); }

/* ===== About ===== */
.about { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: clamp(2rem, 5vw, 5rem); align-items: center; }
@media (max-width: 860px) { .about { grid-template-columns: 1fr; } }
.about__img { aspect-ratio: 4/5; object-fit: cover; width:100%; }
.about__quote { margin-top: var(--s-4); padding-left: var(--s-3); border-left: 2px solid var(--color-accent);
  font-family: var(--font-head); font-size: clamp(1.1rem,1.8vw,1.4rem); line-height:1.4; color: var(--color-primary); }

/* ===== Services ===== */
.services { background: var(--color-primary); color: #fff; }
.services .eyebrow { color: var(--color-accent); }
.services h2 { color: #fff; }
.svc-grid { display:grid; grid-template-columns: repeat(3,1fr); gap: 0; border-top:1px solid rgba(255,255,255,.15); }
@media (max-width: 760px){ .svc-grid{ grid-template-columns:1fr; } }
.svc { padding: clamp(1.75rem,3vw,2.75rem) clamp(0,2vw,2rem) clamp(1.75rem,3vw,2.75rem) 0; border-bottom:1px solid rgba(255,255,255,.15); }
.svc__num { font-family: var(--font-head); color: var(--color-accent); font-size:0.8rem; letter-spacing:.18em; }
.svc h3 { color:#fff; margin: 0.8rem 0 0.7rem; }
.svc p { color: rgba(255,255,255,.72); font-size: 0.96rem; margin:0; }

/* ===== Team ===== */
.team-grid { display:grid; grid-template-columns: repeat(3,1fr); gap: clamp(1rem,2.5vw,2rem); }
@media (max-width: 760px){ .team-grid{ grid-template-columns: repeat(2,1fr);} }
@media (max-width: 460px){ .team-grid{ grid-template-columns: 1fr;} }
.member__img { aspect-ratio: 1/1; object-fit: cover; width:100%; filter: grayscale(100%); transition: filter .4s ease; background: var(--color-muted); }
.member:hover .member__img { filter: grayscale(0); }
.member__name { font-family: var(--font-head); font-weight:500; margin-top: 0.9rem; }
.member__role { color: var(--color-fg-soft); font-size: 0.9rem; }

/* ===== Contact ===== */
.contact { background: var(--color-muted); }
.contact__grid { display:grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(2rem,5vw,5rem); }
@media (max-width: 860px){ .contact__grid{ grid-template-columns:1fr; } }
.contact__item { margin-bottom: var(--s-3); }
.contact__item .k { font-family: var(--font-head); font-size:0.72rem; letter-spacing:.18em; text-transform:uppercase; color:var(--color-fg-faint); }
.contact__item .v { font-size: 1.05rem; }
.contact__item a:hover { color: var(--color-accent); }

form .field { margin-bottom: var(--s-3); }
form label { display:block; font-family:var(--font-head); font-size:0.78rem; letter-spacing:.1em; text-transform:uppercase; color: var(--color-fg-soft); margin-bottom: 0.45rem; }
form input, form textarea {
  width:100%; font-family: var(--font-body); font-size: 1rem; color: var(--color-fg);
  padding: 0.85rem 1rem; border: 1px solid var(--color-border); background:#fff; border-radius:0;
  transition: border-color .2s ease;
}
form input:focus, form textarea:focus { outline: none; border-color: var(--color-primary); }
form textarea { resize: vertical; min-height: 130px; }
.form-msg { margin-top: 1rem; font-size: 0.95rem; }
.form-msg.ok { color: #15803d; }
.form-msg.err { color: #b91c1c; }

/* ===== Footer ===== */
.footer { background: var(--color-primary); color: rgba(255,255,255,.7); padding-block: var(--s-8) var(--s-4); }
.footer__top { display:flex; justify-content:space-between; gap:2rem; flex-wrap:wrap; padding-bottom: var(--s-6); border-bottom:1px solid rgba(255,255,255,.12); }
.footer__brand { font-family:var(--font-head); font-weight:600; font-size:1.4rem; color:#fff; }
.footer__links { display:flex; gap: 1.5rem; flex-wrap:wrap; }
.footer__links a { color: rgba(255,255,255,.7); font-family:var(--font-head); font-size:0.9rem; }
.footer__links a:hover { color:#fff; }
.footer__bottom { padding-top: var(--s-4); display:flex; justify-content:space-between; gap:1rem; flex-wrap:wrap; font-size:0.82rem; }
.footer__bottom a:hover { color:#fff; }

/* ===== Reveal animation ===== */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity:1; transform:none; transition:none; } }

/* ===== Project detail modal ===== */
.modal { position: fixed; inset: 0; z-index: 200; display: flex; }
.modal__scrim { position:absolute; inset:0; background: rgba(20,18,16,.6); backdrop-filter: blur(3px); }
.modal__panel {
  position: relative; margin: auto; background: var(--color-bg);
  width: min(960px, 94vw); max-height: 92vh; overflow-y: auto; z-index:1;
  animation: rise .35s cubic-bezier(.2,.7,.2,1);
}
@media (prefers-reduced-motion: reduce){ .modal__panel{ animation:none; } }
@keyframes rise { from { opacity:0; transform: translateY(24px);} to { opacity:1; transform:none; } }
.modal__close { position: sticky; top: 0; margin-left: auto; display:block; background: var(--color-bg);
  border:0; cursor:pointer; padding: 14px; z-index:2; }
.modal__close svg { width: 24px; height:24px; }
.modal__body { padding: 0 clamp(1.5rem,4vw,3rem) clamp(2rem,5vw,3rem); }
.modal__head { display:flex; align-items:baseline; justify-content:space-between; gap:1rem; flex-wrap:wrap; margin-bottom: 0.5rem; }
.modal__cat { font-family:var(--font-head); font-size:0.72rem; letter-spacing:.18em; text-transform:uppercase; color: var(--color-accent); }
.modal__facts { display:flex; gap: 2rem; flex-wrap:wrap; margin: 1.2rem 0 1.5rem; padding: 1.2rem 0; border-block:1px solid var(--color-border); }
.modal__fact .k { font-family:var(--font-head); font-size:0.7rem; letter-spacing:.16em; text-transform:uppercase; color:var(--color-fg-faint); }
.modal__fact .v { font-size: 1rem; }
.modal__desc { color: var(--color-fg-soft); max-width: 64ch; }
.modal__gallery { display:grid; gap: 1rem; margin-top: 1.8rem; }
.modal__gallery img { width:100%; }