/* Hallmark · macrostructure: Catalogue (ruled product-group grid + inquiry-first hero) · tone: utilitarian-industrial · anchor hue: 82 (amber)
 * theme: custom · paper oklch(96.5% 0.012 85) · accent oklch(80% 0.155 82) · Barlow Condensed + Barlow
 * axes: light+dark-hero / display-condensed / warm
 */
:root {
  /* colour */
  --color-paper: oklch(96.5% 0.012 85);
  --color-paper-2: oklch(93% 0.018 85);
  --color-ink: oklch(24% 0.012 60);
  --color-ink-2: oklch(43% 0.015 60);
  --color-rule: oklch(85% 0.018 85);
  --color-accent: oklch(80% 0.155 82);
  --color-accent-hover: oklch(74% 0.15 80);
  --color-on-accent: oklch(22% 0.02 60);
  --color-accent-text: oklch(44% 0.1 60);
  --color-dark: oklch(21% 0.01 60);
  --color-dark-2: oklch(27% 0.01 60);
  --color-on-dark: oklch(95% 0.01 85);
  --color-on-dark-2: oklch(78% 0.015 80);
  --color-rule-dark: oklch(36% 0.012 60);
  --color-focus: oklch(24% 0.012 60);
  --color-focus-on-dark: oklch(80% 0.155 82);
  --color-placeholder: oklch(90% 0.07 90);
  --color-error: oklch(48% 0.17 28);

  /* type */
  --font-display: "Barlow Condensed", "Arial Narrow", system-ui, sans-serif;
  --font-body: "Barlow", system-ui, -apple-system, "Segoe UI", sans-serif;
  --text-sm: 0.9375rem;
  --text-base: 1.0625rem;
  --text-lg: 1.25rem;
  --text-xl: 1.625rem;
  --text-2xl: clamp(2rem, 1.3rem + 2.6vw, 3rem);
  --text-display: clamp(3rem, 1.4rem + 6.2vw, 6rem);

  /* space (4pt) */
  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 5rem;
  --space-4xl: 7.5rem;

  /* shape + motion */
  --radius: 2px;
  --rule-w: 1px;
  --measure: 60ch;
  --wrap: 74rem;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --dur-short: 140ms;
}

/* ---------- fonts (self-hosted, latin + latin-ext for Turkish) ---------- */
@font-face { font-family: "Barlow Condensed"; font-weight: 600; font-style: normal; font-display: swap;
  src: url("fonts/barlow-condensed-latin-600.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215; }
@font-face { font-family: "Barlow Condensed"; font-weight: 600; font-style: normal; font-display: swap;
  src: url("fonts/barlow-condensed-latin-ext-600.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: "Barlow Condensed"; font-weight: 700; font-style: normal; font-display: swap;
  src: url("fonts/barlow-condensed-latin-700.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215; }
@font-face { font-family: "Barlow Condensed"; font-weight: 700; font-style: normal; font-display: swap;
  src: url("fonts/barlow-condensed-latin-ext-700.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: "Barlow"; font-weight: 400; font-style: normal; font-display: swap;
  src: url("fonts/barlow-latin-400.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215; }
@font-face { font-family: "Barlow"; font-weight: 400; font-style: normal; font-display: swap;
  src: url("fonts/barlow-latin-ext-400.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: "Barlow"; font-weight: 600; font-style: normal; font-display: swap;
  src: url("fonts/barlow-latin-600.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215; }
@font-face { font-family: "Barlow"; font-weight: 600; font-style: normal; font-display: swap;
  src: url("fonts/barlow-latin-ext-600.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { overflow-x: clip; -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 5rem; }
body {
  margin: 0; overflow-x: clip;
  background: var(--color-paper); color: var(--color-ink);
  font: 400 var(--text-base)/1.6 var(--font-body);
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
h1, h2, h3 { font-family: var(--font-display); font-weight: 700; font-style: normal; line-height: 1; margin: 0; text-transform: uppercase; letter-spacing: 0.005em; overflow-wrap: anywhere; min-width: 0; }
p { margin: 0; }
ul, ol, dl, dd { margin: 0; padding: 0; }
li { list-style: none; }
a { color: inherit; }
img, svg { display: block; max-width: 100%; }
:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 3px; border-radius: var(--radius); }
.on-dark :focus-visible { outline-color: var(--color-focus-on-dark); }
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: clamp(1rem, 4vw, 2rem); }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

.skip { position: absolute; left: var(--space-md); top: -4rem; z-index: 100; background: var(--color-accent); color: var(--color-on-accent); padding: var(--space-sm) var(--space-md); text-decoration: none; font-weight: 600; border-radius: var(--radius); }
.skip:focus { top: var(--space-md); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; min-height: 2.75rem;
  padding: 0 var(--space-lg); white-space: nowrap;
  font: 600 var(--text-base)/1 var(--font-body); letter-spacing: 0.02em; text-decoration: none; cursor: pointer;
  border: var(--rule-w) solid var(--color-accent); border-radius: var(--radius);
  background: var(--color-accent); color: var(--color-on-accent);
  transition: background-color var(--dur-short) var(--ease-out), border-color var(--dur-short) var(--ease-out);
}
.btn:hover { background: var(--color-accent-hover); border-color: var(--color-accent-hover); }
.btn:active { transform: translateY(1px); }
.btn[disabled] { opacity: 0.55; cursor: not-allowed; }
.link-arrow { display: inline-flex; align-items: center; min-height: 2.75rem; font-weight: 600; text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 0.3em; color: var(--color-accent-text); }
.link-arrow:hover { text-decoration-thickness: 2px; }

/* ---------- header (dark) ---------- */
.site-header { background: var(--color-dark); color: var(--color-on-dark); position: relative; z-index: 10; }
.bar { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: var(--space-sm) var(--space-xl); padding-block: var(--space-sm); }
.brand { display: inline-flex; align-items: center; gap: var(--space-sm); text-decoration: none; min-height: 2.75rem; }
.brand-mark { width: 2rem; height: 2rem; background: var(--color-accent); border-radius: var(--radius); flex: none; display: grid; place-items: center; }
.brand-mark svg { width: 1.25rem; height: 1.25rem; }
.brand-name { font: 700 1.5rem/0.95 var(--font-display); text-transform: uppercase; letter-spacing: 0.03em; white-space: nowrap; }
.brand-name small { display: block; font: 600 0.75rem/1 var(--font-body); letter-spacing: 0.2em; color: var(--color-on-dark-2); margin-top: 0.25rem; }
.nav ul { display: flex; flex-wrap: wrap; gap: 0 var(--space-lg); justify-content: flex-end; }
.nav a { display: inline-flex; align-items: center; min-height: 2.75rem; padding-inline: 0.125rem; text-decoration: none; font-weight: 600; white-space: nowrap; color: var(--color-on-dark); }
.nav a:hover { text-decoration: underline; text-decoration-color: var(--color-accent); text-decoration-thickness: 2px; text-underline-offset: 0.35em; }
.tools { display: flex; align-items: center; gap: var(--space-md); }
.lang { display: inline-flex; align-items: center; min-height: 2.75rem; padding-inline: var(--space-xs); font-size: var(--text-sm); font-weight: 600; text-decoration: none; color: var(--color-on-dark-2); white-space: nowrap; }
.lang:hover { color: var(--color-on-dark); text-decoration: underline; }
@media (max-width: 62rem) {
  .bar { grid-template-columns: 1fr auto; }
  .nav { grid-column: 1 / -1; grid-row: 2; border-top: var(--rule-w) solid var(--color-rule-dark); }
  .nav ul { justify-content: flex-start; gap: 0 var(--space-md); }
}
@media (max-width: 30rem) { .tools .btn { display: none; } }

/* ---------- hero (dark, inquiry form on paper) ---------- */
.hero { background: var(--color-dark); color: var(--color-on-dark); padding-block: var(--space-3xl); border-top: var(--rule-w) solid var(--color-rule-dark); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: var(--space-2xl); align-items: start; }
.hero h1 { font-size: var(--text-display); max-width: 13ch; line-height: 0.92; }
.hero h1 mark { background: none; color: var(--color-accent); }
.lead { font-size: var(--text-lg); color: var(--color-on-dark-2); max-width: 44ch; margin-top: var(--space-lg); }
.quote-card { background: var(--color-paper); color: var(--color-ink); padding: var(--space-xl); border-radius: var(--radius); border-top: 6px solid var(--color-accent); }
.quote-card h2 { font-size: var(--text-xl); margin-bottom: var(--space-lg); }
@media (max-width: 56rem) {
  .hero { padding-block: var(--space-2xl); }
  .hero-grid { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 30rem) { .quote-card { padding: var(--space-lg); } }

/* ---------- sections ---------- */
.section { padding-block: var(--space-3xl); }
.section h2 { font-size: var(--text-2xl); }
.section-intro { color: var(--color-ink-2); margin-top: var(--space-sm); max-width: var(--measure); }

/* catalogue: shared hairlines, no cards */
.cat-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: var(--space-xl); border-top: var(--rule-w) solid var(--color-ink); border-left: var(--rule-w) solid var(--color-rule); }
.cat { padding: var(--space-lg) var(--space-lg) var(--space-xl); border-right: var(--rule-w) solid var(--color-rule); border-bottom: var(--rule-w) solid var(--color-rule); min-height: 9rem; }
.cat h3 { font-size: var(--text-xl); }
.cat p { margin-top: var(--space-sm); color: var(--color-ink-2); font-size: var(--text-sm); line-height: 1.5; }
.cat-note { margin-top: var(--space-lg); display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-xs) var(--space-lg); }
@media (max-width: 56rem) { .cat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 30rem) { .cat-grid { grid-template-columns: minmax(0, 1fr); } .cat { min-height: 0; } }

/* how we work: term list */
.work { background: var(--color-paper-2); }
.work-grid { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: var(--space-2xl); align-items: start; }
.terms > div { padding-block: var(--space-lg); border-top: var(--rule-w) solid var(--color-ink); }
.terms > div:last-child { border-bottom: var(--rule-w) solid var(--color-ink); }
.terms dt { font: 700 var(--text-xl)/1.05 var(--font-display); text-transform: uppercase; }
.terms dd { margin-top: var(--space-xs); color: var(--color-ink-2); max-width: var(--measure); }
@media (max-width: 52rem) { .work-grid { grid-template-columns: minmax(0, 1fr); gap: var(--space-xl); } }

/* who we supply: four ruled columns */
.who-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--space-xl); margin-top: var(--space-xl); }
.who-item { border-top: 4px solid var(--color-accent); padding-top: var(--space-md); }
.who-item h3 { font-size: var(--text-xl); }
.who-item p { margin-top: var(--space-sm); color: var(--color-ink-2); }
@media (max-width: 62rem) { .who-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 36rem) { .who-grid { grid-template-columns: minmax(0, 1fr); } }

/* about: one statement */
.about p { font-size: clamp(1.375rem, 1rem + 1.6vw, 2rem); line-height: 1.35; max-width: 34ch; margin-top: var(--space-lg); font-weight: 600; }

/* contact */
.contact { border-top: var(--rule-w) solid var(--color-rule); }
.details { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr)); gap: var(--space-xl); margin-top: var(--space-xl); }
.details dt { font-size: var(--text-sm); font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--color-ink-2); }
.details dd { font-size: var(--text-lg); margin-top: var(--space-2xs); overflow-wrap: anywhere; }
.details a { text-decoration-thickness: 1px; text-underline-offset: 0.25em; }
.ph { background: var(--color-placeholder); color: var(--color-ink); padding: 0 var(--space-xs); border-radius: var(--radius); font-size: var(--text-base); }
@media (max-width: 52rem) { .details { grid-template-columns: minmax(0, 1fr); gap: var(--space-lg); } }

/* form (lives on paper inside the hero card) */
.form { display: grid; gap: var(--space-md); }
.form-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-md); }
@media (max-width: 36rem) { .form-row { grid-template-columns: minmax(0, 1fr); } }
.field { display: grid; gap: var(--space-xs); }
.field label { font-weight: 600; }
.field .hint { font-size: var(--text-sm); color: var(--color-ink-2); }
.field input, .field textarea {
  width: 100%; min-height: 2.75rem; padding: var(--space-sm) var(--space-md);
  font: 400 var(--text-base)/1.4 var(--font-body); color: var(--color-ink);
  background: #fff; border: var(--rule-w) solid var(--color-ink-2); border-radius: var(--radius);
}
.field textarea { min-height: 6rem; resize: vertical; }
.field input:hover, .field textarea:hover { border-color: var(--color-ink); }
.field input:user-invalid, .field textarea:user-invalid { border-color: var(--color-error); border-width: 2px; }
.form .btn { justify-self: start; }
.form-note { font-size: var(--text-sm); color: var(--color-ink-2); }

/* ---------- footer (dense) ---------- */
.site-footer { background: var(--color-dark); color: var(--color-on-dark-2); padding-block: var(--space-xl); font-size: var(--text-sm); }
.foot { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: var(--space-md) var(--space-xl); align-items: center; }
.foot ul { display: flex; flex-wrap: wrap; gap: 0 var(--space-lg); }
.foot a { display: inline-flex; align-items: center; min-height: 2.75rem; color: var(--color-on-dark); white-space: nowrap; }
@media (max-width: 52rem) { .foot { grid-template-columns: minmax(0, 1fr); } }

/* ---------- simple pages ---------- */
.note-page { padding-block: var(--space-4xl); min-height: 50vh; }
.note-page h1 { font-size: var(--text-display); max-width: 12ch; line-height: 0.92; }
.note-page .lead { color: var(--color-ink-2); max-width: 40ch; }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-md) var(--space-xl); margin-top: var(--space-xl); }

/* ---------- motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}
@media print {
  .skip, .nav, .tools { display: none; }
  .site-header, .hero, .site-footer { background: none; color: inherit; }
}