/* k-b-b.hu – KBB · Kopasz-Barna Bendegúz e.v. */

:root {
  --ink: #111a27;          /* mély tintakék – hero, fejléc, lábléc */
  --ink-2: #1a2636;
  --ink-line: rgba(232, 238, 246, .14);
  --on-ink: #eef2f7;
  --on-ink-muted: #b4c0cf;

  --paper: #f7f4ef;        /* világos tartalmi blokkok */
  --paper-alt: #efeae2;
  --surface: #ffffff;
  --text: #1b2230;
  --text-muted: #4c5566;
  --line: #d9d2c6;

  --accent: #f2a65a;       /* meleg akcent a CTA-ra */
  --accent-strong: #e08a35;
  --on-accent: #1a1206;
  --link: #a4501a;
  --focus: #f2a65a;

  --radius: 6px;
  --gutter: 16px;
  --maxw: 1120px;
  --font-display: "Sora", system-ui, sans-serif;
  --font-body: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #141c28;
    --paper-alt: #18222f;
    --surface: #1c2735;
    --text: #e8edf3;
    --text-muted: #aeb9c7;
    --line: #2d3a4b;
    --link: #f5b97a;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font: 400 1.0625rem/1.6 var(--font-body);
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--link); text-underline-offset: .18em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: 2px; }
[id] { scroll-margin-top: 84px; }

.skip { position: absolute; left: -9999px; top: 8px; z-index: 100; background: var(--accent); color: var(--on-accent); padding: 8px 14px; font-weight: 600; }
.skip:focus { left: 8px; }

.wrap { width: 100%; max-width: calc(var(--maxw) + 2 * var(--gutter)); margin: 0 auto; padding: 0 var(--gutter); }
@media (min-width: 720px) { :root { --gutter: 32px; } }
.narrow { max-width: calc(780px + 2 * var(--gutter)); }

/* ---------- Gombok ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 12px 22px;
  border: 0; border-radius: var(--radius);
  font: 600 1rem/1.2 var(--font-body);
  text-decoration: none; cursor: pointer;
  transition: background-color .15s ease, transform .15s ease;
}
.btn-accent { background: var(--accent); color: var(--on-accent); }
.btn-accent:hover { background: var(--accent-strong); text-decoration: none; }
.btn-accent:active { transform: translateY(1px); }
.btn[disabled] { opacity: .6; cursor: progress; }
.btn-sm { min-height: 44px; padding: 10px 16px; font-size: .9375rem; }

/* ---------- Fejléc ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--ink); color: var(--on-ink);
  border-bottom: 1px solid var(--ink-line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 68px; }
.brand { display: flex; flex-direction: column; color: var(--on-ink); text-decoration: none; line-height: 1.1; }
.brand-mark { font: 800 1.5rem/1 var(--font-display); letter-spacing: .06em; }
.brand-sub { font-size: .8125rem; color: var(--on-ink-muted); margin-top: 3px; }
@media (max-width: 479px) {
  .site-header .btn-sm { font-size: .875rem; padding: 10px 12px; max-width: 168px; text-align: center; line-height: 1.2; }
  .brand-sub { font-size: .75rem; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background: var(--ink); color: var(--on-ink);
  padding: 72px 0 84px;
}
@media (min-width: 900px) { .hero { padding: 120px 0 132px; } }
.hero-bg {
  position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(to right, rgba(238,242,247,.05) 1px, transparent 1px) 0 0 / 56px 56px,
    linear-gradient(to bottom, rgba(238,242,247,.05) 1px, transparent 1px) 0 0 / 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 80% 90% at 75% 40%, #000 30%, transparent 75%);
          mask-image: radial-gradient(ellipse 80% 90% at 75% 40%, #000 30%, transparent 75%);
}
/* geometrikus „oszlopdiagram” a hero jobb alsó sarkában */
.hero-bg::after {
  content: ""; position: absolute; right: 4%; bottom: 0;
  width: min(46vw, 520px); height: 78%;
  background:
    linear-gradient(var(--accent), var(--accent)) 0%   100% / 12% 22% no-repeat,
    linear-gradient(rgba(242,166,90,.55), rgba(242,166,90,.55)) 22% 100% / 12% 38% no-repeat,
    linear-gradient(rgba(242,166,90,.38), rgba(242,166,90,.38)) 44% 100% / 12% 30% no-repeat,
    linear-gradient(rgba(242,166,90,.26), rgba(242,166,90,.26)) 66% 100% / 12% 58% no-repeat,
    linear-gradient(rgba(242,166,90,.16), rgba(242,166,90,.16)) 88% 100% / 12% 84% no-repeat;
  opacity: .4;
}
.hero-inner { position: relative; }
.display, .section-title, .card-title {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .01em;
}
.display {
  font-size: clamp(2rem, 6.2vw, 4.25rem);
  line-height: 1.04;
  font-weight: 800;
  margin: 0 0 24px;
  max-width: 15ch;
  hyphens: manual;
}
.hero-lead { font-size: clamp(1.0625rem, 2.2vw, 1.3125rem); color: var(--on-ink-muted); max-width: 58ch; margin: 0 0 36px; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 28px; }
.link-secondary { color: var(--on-ink); font-weight: 600; text-decoration: underline; text-decoration-color: var(--accent); text-underline-offset: .3em; padding: 10px 0; }
.link-secondary:hover { color: #fff; }

/* ---------- Szekciók ---------- */
.section { padding: 72px 0; border-top: 1px solid var(--line); }
@media (min-width: 900px) { .section { padding: 104px 0; } }
.section-alt { background: var(--paper-alt); }
.hero + .section { border-top: 0; }
.section-title {
  font-size: clamp(1.5rem, 3.6vw, 2.375rem);
  line-height: 1.12;
  margin: 0 0 36px;
  padding-bottom: 18px;
  border-bottom: 3px solid var(--accent);  /* elválasztás: verzál+bold cím + vonal+térköz */
  display: inline-block;
}
.section-sub { margin: -16px 0 36px; color: var(--text-muted); font-size: 1.125rem; max-width: 62ch; }
.eyebrow {
  margin: 0 0 12px;
  font: 600 .8125rem/1.2 var(--font-body);
  text-transform: uppercase; letter-spacing: .16em;
  color: var(--text-muted);
}

.grid { display: grid; gap: 20px; list-style: none; margin: 0; padding: 0; }
@media (min-width: 720px) { .grid-2 { grid-template-columns: repeat(2, 1fr); gap: 28px; } }
@media (min-width: 720px) and (max-width: 979px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 980px) { .grid-3 { grid-template-columns: repeat(3, 1fr); gap: 24px; } }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-top: 4px solid var(--ink);
  border-radius: var(--radius);
  padding: 26px 24px;
}
@media (prefers-color-scheme: dark) { .card { border-top-color: var(--accent); } }
.card-title { font-size: 1.0625rem; line-height: 1.3; margin: 0 0 12px; letter-spacing: .02em; }
.card p { margin: 0; }
.promise { font-weight: 600; color: var(--text); padding-bottom: 14px; margin-bottom: 14px !important; border-bottom: 1px solid var(--line); }
.ticks { list-style: none; margin: 0; padding: 0; color: var(--text-muted); font-size: .98rem; }
.ticks li { position: relative; padding-left: 22px; margin: 0 0 8px; }
.ticks li::before { content: ""; position: absolute; left: 0; top: .62em; width: 10px; height: 3px; background: var(--accent-strong); }

/* Lépések */
.steps { counter-reset: none; }
.step { position: relative; padding: 24px 0 0; border-top: 3px solid var(--ink); }
@media (prefers-color-scheme: dark) { .step { border-top-color: var(--accent); } }
.step-num { display: block; font: 800 2.75rem/1 var(--font-display); color: var(--accent-strong); margin-bottom: 14px; }
.step p { margin: 0; color: var(--text-muted); }

/* Referenciák */
.ref {
  display: block; height: 100%;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; color: inherit; text-decoration: none;
  transition: transform .2s ease, box-shadow .2s ease;
}
.ref:hover { transform: translateY(-3px); box-shadow: 0 14px 30px rgba(17, 26, 39, .14); }
.ref img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; object-position: top; border-bottom: 1px solid var(--line); }
.ref-body { display: block; padding: 18px 22px 22px; }
.ref-domain { display: block; font: 700 1rem/1.3 var(--font-display); text-transform: uppercase; letter-spacing: .04em; margin-bottom: 6px; }
.ref-domain::after { content: " ↗"; color: var(--accent-strong); }
.ref-text { display: block; color: var(--text-muted); font-size: .98rem; }

/* Rólunk */
.about-text { font-size: 1.1875rem; line-height: 1.7; margin: 0; }

/* Kapcsolat */
.contact { background: var(--paper-alt); }
.contact-grid { display: grid; gap: 40px; }
@media (min-width: 900px) { .contact-grid { grid-template-columns: 1.5fr 1fr; gap: 64px; align-items: start; } }
.form { display: grid; gap: 18px; }
.field { display: grid; gap: 6px; }
.field label { font-weight: 600; font-size: .9375rem; }
.field input[type=text], .field input[type=email], .field input[type=tel], .field textarea {
  width: 100%; padding: 12px 14px; min-height: 48px;
  font: 400 1rem/1.4 var(--font-body); color: var(--text);
  background: var(--surface); border: 1px solid #8b8478; border-radius: var(--radius);
}
@media (prefers-color-scheme: dark) {
  .field input[type=text], .field input[type=email], .field input[type=tel], .field textarea { border-color: #4a596c; }
}
.field textarea { resize: vertical; min-height: 140px; }
.field input:focus-visible, .field textarea:focus-visible { outline: 3px solid var(--focus); outline-offset: 1px; }
.check { grid-template-columns: auto 1fr; align-items: start; gap: 12px; }
.check input { width: 22px; height: 22px; margin: 2px 0 0; accent-color: var(--accent-strong); }
.check label { font-weight: 400; }
.form .btn { justify-self: start; min-width: 200px; }
.hp { position: absolute !important; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form-msg { display: none; margin: 0; padding: 14px 16px; border-radius: var(--radius); font-weight: 600; border-left: 4px solid; }
.form-ok { background: rgba(46, 125, 80, .12); border-color: #2e7d50; }
.form-err { background: rgba(176, 48, 32, .1); border-color: #b03020; }
.form-msg.show, .form-msg:target { display: block; }

.contact-info dl { margin: 0; }
.contact-info dt {
  font: 600 .8125rem/1.2 var(--font-body);
  text-transform: uppercase; letter-spacing: .14em;
  color: var(--text-muted);
  padding-top: 18px; border-top: 1px solid var(--line);
}
.contact-info dt:first-child { padding-top: 0; border-top: 0; }
.contact-info dd { margin: 6px 0 18px; font-size: 1.125rem; font-weight: 500; }

/* Lábléc */
.site-footer { background: var(--ink); color: var(--on-ink-muted); padding: 48px 0 56px; font-size: .9375rem; border-top: 4px solid var(--accent); }
.site-footer p { margin: 0 0 6px; }
.site-footer .legal-name { color: var(--on-ink); font-size: 1rem; margin-bottom: 12px; }
.site-footer a { color: var(--on-ink); }

/* Adatkezelési oldal */
.doc { padding: 64px 0 88px; }
.doc h1 { font-size: clamp(1.625rem, 4vw, 2.5rem); }
.doc h2 { font: 700 1.0625rem/1.3 var(--font-display); text-transform: uppercase; letter-spacing: .03em; margin: 36px 0 10px; padding-top: 22px; border-top: 1px solid var(--line); }
.doc p { margin: 0 0 12px; max-width: 72ch; }
.doc .back { display: inline-block; margin-top: 32px; font-weight: 600; }
.doc h1 + h2 { border-top: 0; padding-top: 0; }