/* ============================================================
   ZENTAI ABLAK KFT. — Rendezett otthon, minőségi nyílászárók
   Visual System: Tactile Craft / Heritage Modern
   ============================================================ */

/* ---- Google Fonts import (serif + sans) ---- */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;500;600;700&family=Inter:wght@300;400;500;600&display=swap');

/* ---- CSS Custom Properties ---- */
:root {
  --color-bg:          #F7F4EF;      /* warm off-white */
  --color-surface:     #EDE8DF;      /* sand / light clay */
  --color-surface-2:   #E4DDD1;      /* slightly deeper sand */
  --color-walnut:      #5C3D2E;      /* walnut brown */
  --color-graphite:    #2B2B2B;      /* deep graphite */
  --color-graphite-mid:#4A4A4A;
  --color-graphite-lt: #7A7A7A;
  --color-accent:      #5C7A5E;      /* muted sage green */
  --color-accent-lt:   #7A9E7C;
  --color-border:      #D4CCBf;
  --color-white:       #FFFFFF;

  --font-display: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-body:    'Inter', system-ui, -apple-system, sans-serif;

  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:   16px;

  --shadow-sm:   0 1px 4px rgba(44,35,28,.08);
  --shadow-md:   0 4px 16px rgba(44,35,28,.12);
  --shadow-lg:   0 12px 40px rgba(44,35,28,.14);

  --max-w:       1200px;
  --section-gap: 6rem;
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-graphite);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ---- Typography ---- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.2;
  color: var(--color-graphite);
}
h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); font-weight: 600; }
h2 { font-size: clamp(1.7rem, 3.5vw, 2.8rem); font-weight: 500; }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.7rem); font-weight: 500; }
h4 { font-size: 1.1rem; font-weight: 600; }
p  { font-size: 1rem; color: var(--color-graphite-mid); }

.eyebrow {
  font-family: var(--font-body);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: .75rem;
  display: block;
}

/* ---- Layout Helpers ---- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section { padding: var(--section-gap) 0; }
.section--alt { background-color: var(--color-surface); }
.section--dark {
  background-color: var(--color-graphite);
  color: var(--color-bg);
}
.section--dark h2, .section--dark h3, .section--dark h4 { color: var(--color-bg); }
.section--dark p { color: #C8C0B4; }

/* ---- Buttons ---- */
.btn {
  display: inline-block;
  padding: .85rem 2rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: .9rem;
  font-weight: 500;
  letter-spacing: .04em;
  transition: background .2s, color .2s, transform .15s;
  white-space: nowrap;
}
.btn--primary {
  background-color: var(--color-walnut);
  color: var(--color-white);
  border: 2px solid var(--color-walnut);
}
.btn--primary:hover {
  background-color: #4a3025;
  border-color: #4a3025;
  transform: translateY(-1px);
}
.btn--outline {
  background-color: transparent;
  color: var(--color-walnut);
  border: 2px solid var(--color-walnut);
}
.btn--outline:hover {
  background-color: var(--color-walnut);
  color: var(--color-white);
  transform: translateY(-1px);
}
.btn--accent {
  background-color: var(--color-accent);
  color: var(--color-white);
  border: 2px solid var(--color-accent);
}
.btn--accent:hover {
  background-color: #4a6650;
  border-color: #4a6650;
  transform: translateY(-1px);
}
.btn--ghost {
  background: transparent;
  color: var(--color-bg);
  border: 2px solid rgba(247,244,239,.45);
}
.btn--ghost:hover {
  border-color: var(--color-bg);
  background: rgba(247,244,239,.1);
}

/* ---- Header / Nav ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}
.header-top {
  background-color: var(--color-surface-2);
  padding: .4rem 0;
  border-bottom: 1px solid var(--color-border);
}
.header-top .container {
  display: flex;
  justify-content: center;
  align-items: center;
}
.header-tagline {
  font-size: .78rem;
  color: var(--color-graphite-mid);
  letter-spacing: .06em;
  font-style: italic;
}
.header-main {
  padding: .9rem 0;
}
.header-main .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.site-logo {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-walnut);
  letter-spacing: -.01em;
  flex-shrink: 0;
}
.site-logo span {
  display: block;
  font-family: var(--font-body);
  font-size: .65rem;
  font-weight: 400;
  color: var(--color-graphite-lt);
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-top: .1rem;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.site-nav a {
  font-size: .9rem;
  font-weight: 500;
  color: var(--color-graphite-mid);
  position: relative;
  padding-bottom: 2px;
  transition: color .2s;
}
.site-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 2px;
  background-color: var(--color-walnut);
  transition: width .25s;
}
.site-nav a:hover,
.site-nav a.active { color: var(--color-walnut); }
.site-nav a:hover::after,
.site-nav a.active::after { width: 100%; }

.header-cta { flex-shrink: 0; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: .4rem;
  background: none;
  border: none;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background-color: var(--color-graphite);
  transition: transform .3s, opacity .3s;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav */
.mobile-nav {
  display: none;
  flex-direction: column;
  background-color: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: 1rem 1.5rem 1.5rem;
  gap: .75rem;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-graphite-mid);
  padding: .5rem 0;
  border-bottom: 1px solid var(--color-border);
}
.mobile-nav a:last-child { border-bottom: none; }
.mobile-nav .btn { margin-top: .5rem; text-align: center; }

/* ---- Hero ---- */
.hero {
  background-color: var(--color-surface);
  overflow: hidden;
}
.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  min-height: 82vh;
  padding-top: 4rem;
  padding-bottom: 4rem;
}
.hero-content { max-width: 560px; }
.hero-support {
  font-size: .85rem;
  color: var(--color-graphite-lt);
  margin-top: 1.5rem;
  display: flex;
  align-items: center;
  gap: .5rem;
}
.hero-support::before {
  content: '';
  display: inline-block;
  width: 24px; height: 1px;
  background-color: var(--color-graphite-lt);
  flex-shrink: 0;
}
.hero-headline { margin-bottom: 1.25rem; }
.hero-sub {
  font-size: 1.05rem;
  color: var(--color-graphite-mid);
  margin-bottom: 2rem;
  line-height: 1.75;
}
.hero-ctas {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}
.hero-visual {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4/5;
  background-color: var(--color-surface-2);
  border: 1px solid var(--color-border);
}
.img-placeholder {
  width: 100%; height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  text-align: center;
  background-color: var(--color-surface-2);
  color: var(--color-graphite-lt);
  font-size: .8rem;
  font-style: italic;
  line-height: 1.6;
  gap: 1rem;
}
.img-placeholder .ph-icon {
  width: 48px; height: 48px;
  border: 2px solid var(--color-border);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  color: var(--color-border);
  flex-shrink: 0;
}
.img-placeholder .ph-label {
  font-size: .78rem;
  color: var(--color-graphite-lt);
  font-style: italic;
  max-width: 220px;
}

/* ---- Trust Section ---- */
.trust-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}
.trust-text h2 { margin-bottom: 1.25rem; }
.trust-text p  { margin-bottom: 1.5rem; }
.trust-notes {
  display: flex;
  flex-direction: column;
  gap: .75rem;
  margin-top: 2rem;
}
.trust-note {
  display: flex;
  align-items: center;
  gap: .85rem;
  padding: .9rem 1.1rem;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius-sm);
  font-size: .9rem;
  font-weight: 500;
  color: var(--color-graphite);
}
.trust-note::before {
  content: '✓';
  color: var(--color-accent);
  font-weight: 700;
  flex-shrink: 0;
}
.trust-visual {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 3/4;
  background-color: var(--color-surface-2);
  border: 1px solid var(--color-border);
}

/* ---- Split Sections (Products) ---- */
.split-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  align-items: stretch;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  margin-bottom: 2.5rem;
  box-shadow: var(--shadow-sm);
}
.split-section:last-child { margin-bottom: 0; }
.split-section.reverse .split-text { order: 2; }
.split-section.reverse .split-img  { order: 1; }
.split-text {
  padding: 3rem;
  background-color: var(--color-bg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1rem;
}
.split-text h3 { margin-bottom: .5rem; }
.split-text p  { margin-bottom: 1rem; }
.split-img {
  background-color: var(--color-surface-2);
  min-height: 320px;
  position: relative;
}

/* ---- Differentiation ---- */
.diff-inner {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}
.diff-inner h2 { margin-bottom: 1.5rem; }
.diff-inner p  { font-size: 1.05rem; margin-bottom: 2.5rem; }
.diff-quote {
  display: inline-block;
  padding: 1.25rem 2rem;
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-style: italic;
  color: var(--color-walnut);
  background-color: var(--color-surface);
}

/* ---- Process Steps ---- */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}
.step-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
  position: relative;
}
.step-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-surface-2);
  line-height: 1;
  margin-bottom: .75rem;
  display: block;
}
.step-card h4 { margin-bottom: .5rem; font-size: 1rem; }
.step-card p  { font-size: .88rem; }

/* ---- FAQ Accordion ---- */
.faq-list { margin-top: 2.5rem; }
.faq-item {
  border-bottom: 1px solid var(--color-border);
}
.faq-item:first-child { border-top: 1px solid var(--color-border); }
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 0;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-graphite);
  text-align: left;
  gap: 1rem;
  background: none;
  border: none;
  cursor: pointer;
  transition: color .2s;
}
.faq-question:hover { color: var(--color-walnut); }
.faq-icon {
  width: 24px; height: 24px;
  border: 1.5px solid var(--color-border);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  font-size: .8rem;
  color: var(--color-graphite-lt);
  transition: transform .3s, border-color .2s;
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
  border-color: var(--color-walnut);
  color: var(--color-walnut);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease, padding .3s;
}
.faq-answer-inner {
  padding: 0 0 1.25rem;
  font-size: .95rem;
  color: var(--color-graphite-mid);
  line-height: 1.75;
}

/* ---- Final CTA Strip ---- */
.cta-strip {
  background-color: var(--color-walnut);
  padding: 5rem 0;
  text-align: center;
}
.cta-strip h2 { color: var(--color-bg); margin-bottom: 1rem; }
.cta-strip p  { color: rgba(247,244,239,.75); font-size: 1.05rem; margin-bottom: 2rem; }

/* ---- Page Hero (inner pages) ---- */
.page-hero {
  background-color: var(--color-surface);
  padding: 5rem 0 4rem;
  border-bottom: 1px solid var(--color-border);
}
.page-hero-inner { max-width: 680px; }
.page-hero h1 { margin-bottom: 1rem; }
.page-hero p  { font-size: 1.05rem; }

/* ---- Termékek page ---- */
.product-section {
  padding: 4rem 0;
  border-bottom: 1px solid var(--color-border);
}
.product-section:last-child { border-bottom: none; }
.product-section-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}
.product-section-inner.reverse .product-text { order: 2; }
.product-section-inner.reverse .product-img  { order: 1; }
.product-text h2 { margin-bottom: 1rem; }
.product-text p  { margin-bottom: 1.25rem; }
.product-img {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4/3;
  border: 1px solid var(--color-border);
}
.product-intro {
  background-color: var(--color-surface);
  border-left: 4px solid var(--color-accent);
  padding: 1.25rem 1.5rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: 3rem;
  font-size: .95rem;
  color: var(--color-graphite-mid);
  font-style: italic;
}

/* ---- Akciók page ---- */
.offer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
  margin-top: 2.5rem;
}
.offer-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}
.offer-card-img {
  aspect-ratio: 16/9;
  background-color: var(--color-surface-2);
  border-bottom: 1px solid var(--color-border);
}
.offer-card-body {
  padding: 1.75rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: .75rem;
}
.offer-card-tag {
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.offer-card-body h3 { font-size: 1.25rem; margin-bottom: .25rem; }
.offer-card-body p  { font-size: .9rem; flex: 1; }
.offer-note {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-walnut);
  padding: 1rem 1.25rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: .88rem;
  color: var(--color-graphite-mid);
  margin-bottom: 2.5rem;
  font-style: italic;
}
.akciok-cta {
  text-align: center;
  padding: 4rem 0 0;
}
.akciok-cta h2 { margin-bottom: 1rem; }
.akciok-cta p  { margin-bottom: 2rem; }

/* ---- Kapcsolat page ---- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 4rem;
  align-items: start;
}
.contact-info h3 { margin-bottom: 1.5rem; }
.contact-detail {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}
.contact-item {
  display: flex;
  gap: .75rem;
  align-items: flex-start;
  font-size: .95rem;
}
.contact-item-label {
  font-weight: 600;
  color: var(--color-graphite);
  min-width: 90px;
  flex-shrink: 0;
}
.contact-item-value { color: var(--color-graphite-mid); }
.contact-map {
  margin-top: 2rem;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4/3;
  border: 1px solid var(--color-border);
}

/* ---- Form ---- */
.contact-form-wrap {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
}
.form-title { margin-bottom: .5rem; }
.form-helper {
  font-size: .9rem;
  color: var(--color-graphite-lt);
  margin-bottom: 2rem;
  font-style: italic;
}
.form-group { margin-bottom: 1.25rem; }
.form-group label {
  display: block;
  font-size: .85rem;
  font-weight: 500;
  color: var(--color-graphite);
  margin-bottom: .4rem;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: .75rem 1rem;
  background-color: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: .95rem;
  color: var(--color-graphite);
  transition: border-color .2s;
  outline: none;
  appearance: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-walnut);
}
.form-group textarea { resize: vertical; min-height: 130px; }
.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%237A7A7A' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}
.form-submit { margin-top: 1.5rem; }
.form-submit .btn { width: 100%; justify-content: center; text-align: center; }

/* ---- Footer ---- */
.site-footer {
  background-color: var(--color-graphite);
  color: var(--color-bg);
  padding: 4rem 0 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(247,244,239,.12);
}
.footer-brand .site-logo { color: var(--color-bg); margin-bottom: 1rem; }
.footer-brand .site-logo span { color: rgba(247,244,239,.5); }
.footer-brand p {
  font-size: .88rem;
  color: rgba(247,244,239,.6);
  max-width: 280px;
  line-height: 1.7;
}
.footer-col h4 {
  font-family: var(--font-body);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(247,244,239,.5);
  margin-bottom: 1.25rem;
}
.footer-col ul { display: flex; flex-direction: column; gap: .6rem; }
.footer-col ul li a {
  font-size: .9rem;
  color: rgba(247,244,239,.75);
  transition: color .2s;
}
.footer-col ul li a:hover { color: var(--color-bg); }
.footer-col address {
  font-style: normal;
  font-size: .9rem;
  color: rgba(247,244,239,.75);
  line-height: 1.9;
}
.footer-bottom {
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.footer-copy {
  font-size: .8rem;
  color: rgba(247,244,239,.4);
}

/* ---- Screen-reader only ---- */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ---- Reveal animation ---- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 1024px) {
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 860px) {
  :root { --section-gap: 4rem; }

  .hero .container {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 3rem;
    padding-bottom: 3rem;
  }
  .hero-visual { aspect-ratio: 16/9; max-height: 320px; }
  .hero-content { max-width: 100%; }

  .trust-grid { grid-template-columns: 1fr; }
  .trust-visual { aspect-ratio: 16/9; max-height: 280px; }

  .split-section {
    grid-template-columns: 1fr;
  }
  .split-section.reverse .split-text { order: 1; }
  .split-section.reverse .split-img  { order: 2; }
  .split-img { min-height: 220px; }
  .split-text { padding: 2rem; }

  .product-section-inner {
    grid-template-columns: 1fr;
  }
  .product-section-inner.reverse .product-text { order: 1; }
  .product-section-inner.reverse .product-img  { order: 2; }

  .offer-grid { grid-template-columns: 1fr; }

  .contact-grid { grid-template-columns: 1fr; }

  .steps-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  :root { --section-gap: 3rem; }

  .site-nav, .header-cta { display: none; }
  .hamburger { display: flex; }

  h1 { font-size: 2rem; }
  h2 { font-size: 1.55rem; }

  .hero-ctas { flex-direction: column; align-items: flex-start; }
  .hero-ctas .btn { width: 100%; text-align: center; }

  .steps-grid { grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }

  .contact-form-wrap { padding: 1.5rem; }

  .cta-strip { padding: 3.5rem 0; }
}