/* شرکت ساختمانی خوزستان زاویه — zaaviehco.ir
   Concrete / ochre / ink. Sharp angles. RTL. */

:root {
  --ink: #141618;
  --ink-2: #1e2226;
  --ink-3: #2a3036;
  --paper: #f3efe6;
  --paper-2: #e8e2d4;
  --concrete: #9a9488;
  --concrete-2: #6e6960;
  --ochre: #c56a1a;
  --ochre-2: #e08a32;
  --ochre-dim: rgba(197, 106, 26, 0.14);
  --line: rgba(20, 22, 24, 0.12);
  --line-light: rgba(243, 239, 230, 0.14);
  --text: #1c1e20;
  --muted: #5c5850;
  --radius: 0;
  --max: 1120px;
  --header-h: 4.5rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Vazirmatn", system-ui, sans-serif;
  background: var(--paper);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }

.skip {
  position: absolute;
  inset-inline-start: -999px;
  top: 0;
  background: var(--ochre);
  color: #fff;
  padding: 0.5rem 1rem;
  z-index: 100;
}
.skip:focus {
  inset-inline-start: 0;
}

/* ——— Header ——— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--ink);
  color: var(--paper);
  border-bottom: 3px solid var(--ochre);
}

.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.mark {
  width: 2.6rem;
  height: 2.6rem;
  flex-shrink: 0;
  background: var(--ochre);
  clip-path: polygon(0 0, 100% 0, 100% 62%, 38% 100%, 0 100%);
  display: grid;
  place-items: center;
  position: relative;
}
.mark::after {
  content: "";
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 0 14px 14px;
  border-color: transparent transparent var(--ink) transparent;
  transform: translate(4px, 2px);
}

.brand-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.brand-text strong {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.2;
}
.brand-text .lat {
  font-size: 0.68rem;
  letter-spacing: 0.28em;
  color: var(--ochre-2);
  font-weight: 600;
}
.brand-text .sub {
  font-size: 0.7rem;
  color: var(--concrete);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--line-light);
  color: var(--paper);
  width: 2.6rem;
  height: 2.6rem;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 1.1rem;
  height: 2px;
  background: currentColor;
  margin: 5px auto;
}

.nav {
  display: flex;
  gap: 0.15rem;
}
.nav a {
  padding: 0.45rem 0.85rem;
  font-size: 0.92rem;
  color: var(--paper-2);
  position: relative;
}
.nav a:hover,
.nav a:focus-visible {
  color: #fff;
}
.nav a[aria-current="page"] {
  color: #fff;
}
.nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  bottom: 0.15rem;
  inset-inline: 0.85rem;
  height: 2px;
  background: var(--ochre);
}

@media (max-width: 760px) {
  .nav-toggle { display: block; }
  .nav {
    display: none;
    position: absolute;
    top: 100%;
    inset-inline: 0;
    flex-direction: column;
    background: var(--ink-2);
    padding: 0.5rem 0;
    border-bottom: 3px solid var(--ochre);
  }
  .nav.is-open { display: flex; }
  .nav a { padding: 0.75rem 1.25rem; }
}

/* ——— Layout ——— */
main { flex: 1; }
.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.page-head {
  background: var(--ink);
  color: var(--paper);
  padding: 3rem 0 2.5rem;
  position: relative;
  overflow: hidden;
}
.page-head::after {
  content: "";
  position: absolute;
  inset-inline-start: -8%;
  bottom: 0;
  width: 55%;
  height: 100%;
  background: linear-gradient(115deg, transparent 40%, var(--ochre-dim) 40.2%, var(--ochre-dim) 58%, transparent 58.2%);
  pointer-events: none;
}
.page-head h1 {
  margin: 0 0 0.35rem;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  position: relative;
}
.page-head p {
  margin: 0;
  color: var(--concrete);
  position: relative;
}

/* ——— Hero ——— */
.hero {
  background: var(--ink);
  color: var(--paper);
  position: relative;
  overflow: hidden;
  padding: 4.5rem 0 5.5rem;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, transparent 0 48%, rgba(197,106,26,0.12) 48.1% 52%, transparent 52.1%),
    repeating-linear-gradient(-32deg, transparent, transparent 28px, rgba(243,239,230,0.03) 28px, rgba(243,239,230,0.03) 29px);
  pointer-events: none;
}
.hero-grid {
  position: relative;
  display: grid;
  gap: 2rem;
  align-items: end;
}
@media (min-width: 800px) {
  .hero-grid {
    grid-template-columns: 1.3fr 0.7fr;
  }
}
.kicker {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: var(--ochre-2);
  font-weight: 600;
  margin-bottom: 0.75rem;
}
.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(1.85rem, 4.2vw, 2.85rem);
  font-weight: 800;
  line-height: 1.25;
}
.hero .lead {
  font-size: 1.05rem;
  color: var(--paper-2);
  max-width: 36rem;
  margin: 0 0 1.75rem;
}
.hero-aside {
  border: 1px solid var(--line-light);
  padding: 1.25rem 1.35rem;
  background: var(--ink-2);
  clip-path: polygon(12px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%, 0 12px);
}
.hero-aside dt {
  font-size: 0.72rem;
  color: var(--concrete);
  margin: 0 0 0.15rem;
}
.hero-aside dd {
  margin: 0 0 0.85rem;
  font-weight: 600;
}
.hero-aside dd:last-child { margin-bottom: 0; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--ochre);
  color: #fff;
  padding: 0.7rem 1.25rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
}
.btn:hover, .btn:focus-visible { background: var(--ochre-2); color: #fff; }
.btn-ghost {
  background: transparent;
  color: var(--paper);
  box-shadow: inset 0 0 0 1px var(--line-light);
}
.btn-ghost:hover { background: var(--ink-3); }
.btn-row { display: flex; flex-wrap: wrap; gap: 0.65rem; }

/* ——— Sections ——— */
.section { padding: 3.25rem 0; }
.section h2 {
  margin: 0 0 1.25rem;
  font-size: 1.45rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.section h2::before {
  content: "";
  width: 0.7rem;
  height: 0.7rem;
  background: var(--ochre);
  clip-path: polygon(0 0, 100% 0, 100% 55%, 45% 100%, 0 100%);
  flex-shrink: 0;
}
.prose { max-width: 42rem; color: var(--muted); }
.prose p { margin: 0 0 1rem; }

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}
.chip {
  background: #fff;
  border: 1px solid var(--line);
  padding: 0.65rem 1rem;
  font-size: 0.9rem;
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
}
.chip strong { display: block; color: var(--ink); font-size: 0.95rem; }
.chip span { color: var(--muted); font-size: 0.78rem; }

.cards {
  display: grid;
  gap: 1rem;
}
@media (min-width: 700px) {
  .cards { grid-template-columns: repeat(3, 1fr); }
}
.card {
  background: #fff;
  border: 1px solid var(--line);
  padding: 1.35rem 1.25rem 1.5rem;
  position: relative;
}
.card::before {
  content: "";
  position: absolute;
  top: 0;
  inset-inline-end: 0;
  width: 2.2rem;
  height: 2.2rem;
  background: var(--ochre);
  clip-path: polygon(100% 0, 0 0, 100% 100%);
}
.card h3 { margin: 0 0 0.5rem; font-size: 1.05rem; }
.card p { margin: 0; color: var(--muted); font-size: 0.92rem; }

.band {
  background: var(--paper-2);
  border-block: 1px solid var(--line);
}

.facts {
  display: grid;
  gap: 0;
  border: 1px solid var(--line);
  background: #fff;
}
.facts div {
  display: grid;
  grid-template-columns: 10rem 1fr;
  gap: 0.75rem;
  padding: 0.85rem 1.1rem;
  border-bottom: 1px solid var(--line);
  font-size: 0.95rem;
}
.facts div:last-child { border-bottom: 0; }
.facts dt {
  margin: 0;
  color: var(--muted);
  font-weight: 500;
}
.facts dd { margin: 0; font-weight: 600; }
@media (max-width: 560px) {
  .facts div { grid-template-columns: 1fr; gap: 0.2rem; }
}

.addr-grid {
  display: grid;
  gap: 1rem;
}
@media (min-width: 800px) {
  .addr-grid { grid-template-columns: repeat(2, 1fr); }
}
.addr {
  background: #fff;
  border: 1px solid var(--line);
  padding: 1.2rem;
  border-inline-start: 3px solid var(--ochre);
}
.addr h3 { margin: 0 0 0.5rem; font-size: 1rem; }
.addr p { margin: 0; color: var(--muted); font-size: 0.9rem; }
.addr .pc { margin-top: 0.5rem; font-size: 0.8rem; color: var(--concrete-2); }

/* Projects empty grid */
.frames {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: repeat(2, 1fr);
}
@media (min-width: 800px) {
  .frames { grid-template-columns: repeat(3, 1fr); }
}
.frame {
  aspect-ratio: 4 / 3;
  background:
    repeating-linear-gradient(-32deg, transparent, transparent 10px, rgba(20,22,24,0.04) 10px, rgba(20,22,24,0.04) 11px),
    var(--paper-2);
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  clip-path: polygon(14px 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%, 0 14px);
  color: var(--muted);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
}
.empty-note {
  background: #fff;
  border: 1px dashed var(--concrete);
  padding: 1rem 1.15rem;
  margin-bottom: 1.5rem;
  color: var(--ink);
}

/* Form (UI only) */
.form {
  background: #fff;
  border: 1px solid var(--line);
  padding: 1.5rem;
  max-width: 36rem;
}
.form label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin: 0 0 0.3rem;
}
.form input,
.form textarea {
  width: 100%;
  padding: 0.6rem 0.7rem;
  border: 1px solid var(--line);
  background: var(--paper);
  margin-bottom: 1rem;
}
.form input:focus,
.form textarea:focus {
  outline: 2px solid var(--ochre);
  outline-offset: 0;
}
.form-note {
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0.75rem 0 0;
}
.form[data-state="idle"] .form-ok { display: none; }
.form[data-state="done"] .form-fields { display: none; }
.form-ok { color: var(--ink); }

/* Footer */
.site-footer {
  background: var(--ink);
  color: var(--paper-2);
  padding: 2rem 0 1.4rem;
  margin-top: auto;
  font-size: 0.85rem;
}
.foot-grid {
  display: grid;
  gap: 1.25rem;
}
@media (min-width: 700px) {
  .foot-grid { grid-template-columns: 1.4fr 1fr 1fr; }
}
.site-footer a:hover { color: var(--ochre-2); }
.site-footer h3 {
  margin: 0 0 0.5rem;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--ochre-2);
}
.site-footer p { margin: 0 0 0.35rem; color: var(--concrete); }
.legal {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line-light);
  color: var(--concrete);
  font-size: 0.78rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem;
}