/* ============================================================
   Virág Family Solar Klíma Kft. – Main Stylesheet
   ============================================================ */

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

:root {
  --green-dark:   #1a4a2e;
  --green-mid:    #2d6a4f;
  --green-light:  #52b788;
  --yellow:       #e9c46a;
  --graphite:     #2b2d2f;
  --grey-dark:    #4a4e54;
  --grey-mid:     #8a9099;
  --grey-light:   #e8eaed;
  --grey-bg:      #f4f5f7;
  --white:        #ffffff;
  --text:         #1e2022;
  --text-muted:   #5a5f66;
  --radius:       6px;
  --radius-lg:    12px;
  --shadow-sm:    0 1px 4px rgba(0,0,0,.08);
  --shadow-md:    0 4px 16px rgba(0,0,0,.10);
  --transition:   .2s ease;
  --max-w:        1160px;
}

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

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.65;
}

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

/* --- Typography --- */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.22;
  color: var(--graphite);
}
h1 { font-size: clamp(1.9rem, 4vw, 2.9rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.35rem); }
h4 { font-size: 1rem; }
p  { color: var(--text-muted); }

.eyebrow {
  display: inline-block;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--green-mid);
  margin-bottom: .6rem;
}

.section-label {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--green-mid);
  margin-bottom: .5rem;
}

/* --- Layout helpers --- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.section { padding: 5rem 0; }
.section--alt { background: var(--grey-bg); }
.section--dark { background: var(--green-dark); color: var(--white); }
.section--dark h2, .section--dark h3, .section--dark h4 { color: var(--white); }
.section--dark p { color: rgba(255,255,255,.75); }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; align-items: start; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.75rem; }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.75rem; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .75rem 1.6rem;
  border-radius: var(--radius);
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--green-mid);
  color: var(--white);
  border-color: var(--green-mid);
}
.btn-primary:hover { background: var(--green-dark); border-color: var(--green-dark); }

.btn-secondary {
  background: transparent;
  color: var(--green-mid);
  border-color: var(--green-mid);
}
.btn-secondary:hover { background: var(--green-mid); color: var(--white); }

.btn-white {
  background: var(--white);
  color: var(--green-dark);
  border-color: var(--white);
}
.btn-white:hover { background: var(--grey-light); }

.btn-outline-white {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,.6);
}
.btn-outline-white:hover { background: rgba(255,255,255,.12); }

.btn-group { display: flex; flex-wrap: wrap; gap: .75rem; align-items: center; }

/* --- Top contact strip --- */
.top-strip {
  background: var(--green-dark);
  color: rgba(255,255,255,.85);
  font-size: .82rem;
  padding: .45rem 0;
}
.top-strip .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: .5rem;
}
.top-strip__info {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  align-items: center;
}
.top-strip__info a { color: rgba(255,255,255,.85); transition: color var(--transition); }
.top-strip__info a:hover { color: var(--white); }
.top-strip__info span { display: flex; align-items: center; gap: .35rem; }
.top-strip .btn {
  padding: .35rem 1rem;
  font-size: .8rem;
}

/* --- Header / Nav --- */
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--grey-light);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: .9rem;
  padding-bottom: .9rem;
  gap: 1rem;
}
.site-logo {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--green-dark);
  line-height: 1.2;
  max-width: 220px;
}
.site-logo span { display: block; font-size: .7rem; font-weight: 400; color: var(--grey-mid); }

.site-nav { display: flex; align-items: center; gap: .25rem; }
.site-nav a {
  padding: .45rem .85rem;
  border-radius: var(--radius);
  font-size: .9rem;
  font-weight: 500;
  color: var(--graphite);
  transition: background var(--transition), color var(--transition);
}
.site-nav a:hover, .site-nav a.active {
  background: var(--grey-bg);
  color: var(--green-dark);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: .4rem;
  flex-direction: column;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--graphite);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* --- Hero --- */
.hero {
  padding: 4.5rem 0 4rem;
  background: var(--white);
  border-bottom: 1px solid var(--grey-light);
}
.hero .container { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; }
.hero__content { max-width: 540px; }
.hero__content h1 { margin-bottom: 1rem; color: var(--green-dark); }
.hero__content p { font-size: 1.1rem; margin-bottom: 1.75rem; color: var(--text-muted); }
.hero__trust {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-top: 1.75rem;
}
.trust-chip {
  background: var(--grey-bg);
  border: 1px solid var(--grey-light);
  border-radius: 20px;
  padding: .35rem .85rem;
  font-size: .8rem;
  font-weight: 600;
  color: var(--green-dark);
  display: flex;
  align-items: center;
  gap: .35rem;
}
.trust-chip::before { content: '✓'; color: var(--green-mid); font-weight: 700; }

.hero__visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--grey-light);
  min-height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.photo-placeholder {
  width: 100%;
  height: 100%;
  min-height: 380px;
  background: linear-gradient(135deg, #d8e8df 0%, #c5d9cc 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  text-align: center;
  border-radius: var(--radius-lg);
  border: 2px dashed #a8c4b0;
}
.photo-placeholder__icon {
  font-size: 2.5rem;
  margin-bottom: .75rem;
  opacity: .5;
}
.photo-placeholder p {
  font-size: .85rem;
  color: #5a7a65;
  font-style: italic;
  max-width: 260px;
}

/* --- Trust band --- */
.trust-band { padding: 3.5rem 0; background: var(--grey-bg); }
.trust-band .container { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: start; }
.trust-band__text h2 { margin-bottom: 1rem; }
.trust-band__text p { font-size: 1rem; line-height: 1.7; }

.contact-card {
  background: var(--white);
  border: 1px solid var(--grey-light);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
}
.contact-card__title {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--green-mid);
  margin-bottom: 1rem;
}
.contact-card__row {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  padding: .6rem 0;
  border-bottom: 1px solid var(--grey-light);
  font-size: .9rem;
}
.contact-card__row:last-child { border-bottom: none; }
.contact-card__icon { font-size: 1rem; margin-top: .1rem; flex-shrink: 0; color: var(--green-mid); }
.contact-card__label { font-size: .72rem; color: var(--grey-mid); display: block; }
.contact-card__value { font-weight: 500; color: var(--graphite); }
.contact-card__value a { color: var(--green-mid); }
.contact-card__value a:hover { text-decoration: underline; }

/* --- Service cards --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.service-card {
  background: var(--white);
  border: 1px solid var(--grey-light);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: box-shadow var(--transition), border-color var(--transition);
}
.service-card:hover { box-shadow: var(--shadow-md); border-color: #c5d9cc; }
.service-card--large { grid-column: span 2; }
.service-card__icon {
  width: 44px;
  height: 44px;
  background: #e8f4ee;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 1rem;
}
.service-card h3 { margin-bottom: .5rem; }
.service-card p { font-size: .9rem; }
.service-card .btn { margin-top: 1rem; font-size: .85rem; padding: .55rem 1.1rem; }

/* --- Differentiation split --- */
.diff-section { padding: 5rem 0; }
.diff-section .container { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.diff-section__text h2 { margin-bottom: 1rem; }
.diff-section__text p { margin-bottom: 1.5rem; }
.checklist { display: flex; flex-direction: column; gap: .75rem; }
.checklist li {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  font-size: .95rem;
  color: var(--text-muted);
}
.checklist li::before {
  content: '✓';
  color: var(--green-mid);
  font-weight: 700;
  font-size: 1rem;
  flex-shrink: 0;
  margin-top: .05rem;
}
.diff-section__visual {
  background: var(--grey-bg);
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid var(--grey-light);
}
.diff-section__visual h4 { color: var(--green-dark); margin-bottom: 1.25rem; font-size: .85rem; letter-spacing: .06em; text-transform: uppercase; }
.tech-list { display: flex; flex-direction: column; gap: .6rem; }
.tech-list li {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .65rem .85rem;
  background: var(--white);
  border-radius: var(--radius);
  font-size: .88rem;
  color: var(--graphite);
  border: 1px solid var(--grey-light);
}
.tech-list li span { font-size: 1.1rem; }

/* --- Process timeline --- */
.process-section { padding: 5rem 0; background: var(--grey-bg); }
.process-timeline {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
  position: relative;
  margin-top: 3rem;
}
.process-timeline::before {
  content: '';
  position: absolute;
  top: 28px;
  left: calc(100% / 12);
  right: calc(100% / 12);
  height: 2px;
  background: var(--green-light);
  z-index: 0;
}
.process-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 .75rem;
  position: relative;
  z-index: 1;
}
.process-step__num {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--green-mid);
  color: var(--white);
  font-weight: 700;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  border: 3px solid var(--white);
  box-shadow: 0 0 0 2px var(--green-light);
  flex-shrink: 0;
}
.process-step h4 { font-size: .88rem; margin-bottom: .4rem; color: var(--green-dark); }
.process-step p { font-size: .78rem; color: var(--text-muted); line-height: 1.5; }

/* --- Products --- */
.product-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-top: 2rem; }
.product-card {
  background: var(--white);
  border: 1px solid var(--grey-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow var(--transition);
}
.product-card:hover { box-shadow: var(--shadow-md); }
.product-card__img {
  background: linear-gradient(135deg, #e8f4ee 0%, #d0e8da 100%);
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--grey-light);
  font-size: 2.5rem;
  color: var(--green-mid);
}
.product-card__body { padding: 1.25rem; }
.product-card__body h3 { font-size: .95rem; margin-bottom: .5rem; }
.product-card__price {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--green-dark);
  margin-bottom: .75rem;
}
.product-card__note { font-size: .75rem; color: var(--grey-mid); }

/* --- Knowledge cards --- */
.knowledge-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-top: 2rem; }
.knowledge-card {
  background: var(--white);
  border: 1px solid var(--grey-light);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: box-shadow var(--transition);
}
.knowledge-card:hover { box-shadow: var(--shadow-md); }
.knowledge-card__tag {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--green-mid);
  margin-bottom: .6rem;
}
.knowledge-card h3 { font-size: 1rem; margin-bottom: .6rem; }
.knowledge-card p { font-size: .88rem; }
.knowledge-card .btn { margin-top: 1rem; font-size: .82rem; padding: .45rem .9rem; }

/* --- FAQ accordion --- */
.faq-section { padding: 5rem 0; }
.faq-list { max-width: 760px; margin: 2.5rem auto 0; }
.faq-item {
  border-bottom: 1px solid var(--grey-light);
}
.faq-question {
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  padding: 1.1rem 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--graphite);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  transition: color var(--transition);
}
.faq-question:hover { color: var(--green-mid); }
.faq-question .faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--grey-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .85rem;
  flex-shrink: 0;
  transition: background var(--transition), transform var(--transition);
}
.faq-question[aria-expanded="true"] .faq-icon {
  background: var(--green-mid);
  color: var(--white);
  transform: rotate(45deg);
}
.faq-answer {
  display: none;
  padding: 0 0 1.1rem;
  font-size: .95rem;
  color: var(--text-muted);
  line-height: 1.7;
}
.faq-answer.open { display: block; }

/* --- CTA band --- */
.cta-band {
  padding: 5rem 0;
  background: var(--green-dark);
  color: var(--white);
  text-align: center;
}
.cta-band h2 { color: var(--white); margin-bottom: .75rem; }
.cta-band p { color: rgba(255,255,255,.75); max-width: 560px; margin: 0 auto 2rem; font-size: 1.05rem; }
.cta-band .btn-group { justify-content: center; }

/* --- Contact form --- */
.contact-form-section { padding: 5rem 0; }
.contact-form-section .container { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; }
.form-group { margin-bottom: 1.1rem; }
.form-group label { display: block; font-size: .85rem; font-weight: 600; color: var(--graphite); margin-bottom: .4rem; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: .7rem 1rem;
  border: 1.5px solid var(--grey-light);
  border-radius: var(--radius);
  font-size: .95rem;
  color: var(--text);
  background: var(--white);
  transition: border-color var(--transition);
  font-family: inherit;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--green-mid);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-check {
  display: flex;
  align-items: flex-start;
  gap: .6rem;
  margin-bottom: 1.25rem;
}
.form-check input[type="checkbox"] { margin-top: .2rem; flex-shrink: 0; accent-color: var(--green-mid); }
.form-check label { font-size: .85rem; color: var(--text-muted); }

/* --- Map placeholder --- */
.map-placeholder {
  background: linear-gradient(135deg, #d8e8df 0%, #c5d9cc 100%);
  border-radius: var(--radius-lg);
  min-height: 280px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
  border: 2px dashed #a8c4b0;
  margin-top: 1.5rem;
}
.map-placeholder p { font-size: .85rem; color: #5a7a65; font-style: italic; }

/* --- Page hero (inner pages) --- */
.page-hero {
  background: var(--green-dark);
  color: var(--white);
  padding: 3.5rem 0;
}
.page-hero .eyebrow { color: var(--green-light); }
.page-hero h1 { color: var(--white); margin-bottom: .75rem; }
.page-hero p { color: rgba(255,255,255,.75); font-size: 1.1rem; max-width: 620px; }

/* --- Service detail cards --- */
.service-detail {
  padding: 3rem 0;
  border-bottom: 1px solid var(--grey-light);
}
.service-detail:last-child { border-bottom: none; }
.service-detail .container { display: grid; grid-template-columns: 1fr 2fr; gap: 3rem; align-items: start; }
.service-detail__meta { position: sticky; top: 80px; }
.service-detail__icon-lg {
  width: 64px;
  height: 64px;
  background: #e8f4ee;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 1rem;
}
.service-detail__meta h2 { font-size: 1.5rem; margin-bottom: .5rem; }
.service-detail__meta p { font-size: .9rem; }
.service-detail__body ul { list-style: disc; padding-left: 1.25rem; }
.service-detail__body li { color: var(--text-muted); margin-bottom: .45rem; font-size: .95rem; }
.service-detail__body h4 { margin-bottom: .75rem; color: var(--green-dark); }

/* --- Features list --- */
.features-list { display: flex; flex-direction: column; gap: .6rem; margin-top: 1rem; }
.features-list li {
  display: flex;
  align-items: flex-start;
  gap: .65rem;
  font-size: .9rem;
  color: var(--text-muted);
}
.features-list li::before { content: '→'; color: var(--green-mid); font-weight: 700; flex-shrink: 0; }

/* --- Article cards (tudastar) --- */
.article-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-top: 2rem; }
.article-card {
  background: var(--white);
  border: 1px solid var(--grey-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}
.article-card:hover { box-shadow: var(--shadow-md); }
.article-card__img {
  background: linear-gradient(135deg, #e8f4ee 0%, #d0e8da 100%);
  height: 150px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--green-mid);
  border-bottom: 1px solid var(--grey-light);
}
.article-card__body { padding: 1.25rem; flex: 1; display: flex; flex-direction: column; }
.article-card__cat {
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--green-mid);
  margin-bottom: .5rem;
}
.article-card__body h3 { font-size: .95rem; margin-bottom: .5rem; }
.article-card__body p { font-size: .85rem; flex: 1; }
.article-card__body .btn { margin-top: 1rem; font-size: .8rem; padding: .45rem .9rem; align-self: flex-start; }

/* --- Footer --- */
.site-footer {
  background: var(--graphite);
  color: rgba(255,255,255,.7);
  padding: 3.5rem 0 1.5rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}
.footer-brand { max-width: 280px; }
.footer-brand .logo { font-size: 1rem; font-weight: 700; color: var(--white); margin-bottom: .5rem; }
.footer-brand p { font-size: .85rem; line-height: 1.6; }
.footer-col h5 {
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(255,255,255,.5);
  margin-bottom: 1rem;
}
.footer-col ul { display: flex; flex-direction: column; gap: .5rem; }
.footer-col ul li a {
  font-size: .88rem;
  color: rgba(255,255,255,.65);
  transition: color var(--transition);
}
.footer-col ul li a:hover { color: var(--white); }
.footer-col ul li span { font-size: .85rem; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: .5rem;
  font-size: .78rem;
}
.footer-bottom a { color: rgba(255,255,255,.5); }
.footer-bottom a:hover { color: var(--white); }

/* --- Sticky mobile bar --- */
.sticky-mobile-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--white);
  border-top: 1px solid var(--grey-light);
  box-shadow: 0 -2px 12px rgba(0,0,0,.1);
  z-index: 200;
  padding: .6rem 1rem;
  gap: .6rem;
}
.sticky-mobile-bar .btn { flex: 1; justify-content: center; font-size: .85rem; padding: .65rem .75rem; }

/* --- Breadcrumb --- */
.breadcrumb {
  padding: .75rem 0;
  font-size: .82rem;
  color: var(--grey-mid);
  border-bottom: 1px solid var(--grey-light);
  background: var(--grey-bg);
}
.breadcrumb a { color: var(--green-mid); }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb span { margin: 0 .4rem; }

/* --- Section header --- */
.section-header { text-align: center; margin-bottom: 3rem; }
.section-header h2 { margin-bottom: .75rem; }
.section-header p { max-width: 580px; margin: 0 auto; font-size: 1rem; }

/* --- Disclaimer note --- */
.note-disclaimer {
  font-size: .78rem;
  color: var(--grey-mid);
  font-style: italic;
  margin-top: 1.25rem;
  padding: .75rem 1rem;
  background: var(--grey-bg);
  border-radius: var(--radius);
  border-left: 3px solid var(--grey-light);
}

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

@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .service-card--large { grid-column: span 1; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .process-timeline { grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
  .process-timeline::before { display: none; }
  .process-step { padding: 0; }
}

@media (max-width: 768px) {
  .section { padding: 3.5rem 0; }
  .grid-2, .grid-3, .grid-auto { grid-template-columns: 1fr; }
  .hero .container { grid-template-columns: 1fr; }
  .hero__visual { min-height: 240px; }
  .photo-placeholder { min-height: 240px; }
  .trust-band .container { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .product-cards { grid-template-columns: 1fr; }
  .knowledge-cards { grid-template-columns: 1fr; }
  .article-cards { grid-template-columns: 1fr; }
  .diff-section .container { grid-template-columns: 1fr; }
  .contact-form-section .container { grid-template-columns: 1fr; }
  .service-detail .container { grid-template-columns: 1fr; }
  .service-detail__meta { position: static; }
  .process-timeline { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .top-strip .container { flex-direction: column; align-items: flex-start; }
  .top-strip__info { flex-direction: column; gap: .4rem; }
  .nav-toggle { display: flex; }
  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    border-top: 1px solid var(--grey-light);
    border-bottom: 1px solid var(--grey-light);
    flex-direction: column;
    padding: 1rem;
    gap: .25rem;
    box-shadow: var(--shadow-md);
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: .65rem 1rem; border-radius: var(--radius); }
  .sticky-mobile-bar { display: flex; }
  body { padding-bottom: 70px; }
}

@media (max-width: 480px) {
  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.4rem; }
  .btn-group { flex-direction: column; align-items: stretch; }
  .btn-group .btn { justify-content: center; }
  .hero__trust { flex-direction: column; }
}