/* ============================================================
   Kemendy és Társa Kft. — Main Stylesheet
   Conversion-first technical service website
   ============================================================ */

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

:root {
  --white:       #ffffff;
  --off-white:   #f5f5f3;
  --light-gray:  #e8e8e6;
  --mid-gray:    #b0b0ac;
  --graphite:    #3a3a38;
  --dark:        #1e1e1c;
  --blue:        #1a4a7a;
  --blue-light:  #2560a0;
  --blue-hover:  #153d66;
  --orange:      #d9600a;
  --orange-hover:#b84f08;
  --orange-light:#fdf0e8;
  --font-main:   'Segoe UI', Arial, Helvetica, sans-serif;
  --radius:      4px;
  --shadow:      0 2px 8px rgba(0,0,0,0.10);
  --shadow-md:   0 4px 16px rgba(0,0,0,0.13);
}

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

body {
  font-family: var(--font-main);
  color: var(--graphite);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-hover); text-decoration: underline; }

img { max-width: 100%; display: block; }

ul, ol { padding-left: 1.4rem; }

/* ---- Typography ---- */
h1, h2, h3, h4, h5 {
  font-weight: 700;
  line-height: 1.22;
  color: var(--dark);
}
h1 { font-size: clamp(1.7rem, 4vw, 2.6rem); }
h2 { font-size: clamp(1.35rem, 3vw, 2rem); }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.35rem); }
h4 { font-size: 1.05rem; }

p { margin-bottom: 0.9rem; }
p:last-child { margin-bottom: 0; }

/* ---- Layout ---- */
.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.section { padding: 3.5rem 0; }
.section--tight { padding: 2rem 0; }
.section--dark { background: var(--dark); color: var(--white); }
.section--dark h2, .section--dark h3, .section--dark h4 { color: var(--white); }
.section--blue { background: var(--blue); color: var(--white); }
.section--blue h2, .section--blue h3 { color: var(--white); }
.section--offwhite { background: var(--off-white); }

.section-title {
  font-size: clamp(1.3rem, 2.8vw, 1.85rem);
  font-weight: 700;
  margin-bottom: 0.4rem;
  color: var(--dark);
}
.section-subtitle {
  color: var(--graphite);
  font-size: 1.05rem;
  margin-bottom: 2rem;
  max-width: 640px;
}

/* ---- Buttons ---- */
.btn {
  display: inline-block;
  padding: 0.72rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.97rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background 0.18s, color 0.18s, border-color 0.18s;
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--orange);
  color: var(--white);
  border-color: var(--orange);
}
.btn-primary:hover {
  background: var(--orange-hover);
  border-color: var(--orange-hover);
  color: var(--white);
  text-decoration: none;
}
.btn-secondary {
  background: transparent;
  color: var(--blue);
  border-color: var(--blue);
}
.btn-secondary:hover {
  background: var(--blue);
  color: var(--white);
  text-decoration: none;
}
.btn-outline-white {
  background: transparent;
  color: var(--white);
  border-color: var(--white);
}
.btn-outline-white:hover {
  background: var(--white);
  color: var(--blue);
  text-decoration: none;
}
.btn-lg { padding: 0.9rem 2rem; font-size: 1.05rem; }
.btn-sm { padding: 0.5rem 1rem; font-size: 0.88rem; }

/* ---- Header ---- */
.site-header {
  background: var(--white);
  border-bottom: 2px solid var(--light-gray);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1.25rem;
  max-width: 1140px;
  margin: 0 auto;
}
.logo-block { display: flex; flex-direction: column; line-height: 1.2; }
.logo-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--dark);
  letter-spacing: -0.01em;
}
.logo-desc {
  font-size: 0.72rem;
  color: var(--mid-gray);
  letter-spacing: 0.01em;
}
.main-nav { display: flex; align-items: center; gap: 0.2rem; }
.main-nav a {
  color: var(--graphite);
  font-size: 0.93rem;
  font-weight: 500;
  padding: 0.45rem 0.75rem;
  border-radius: var(--radius);
  transition: background 0.15s, color 0.15s;
}
.main-nav a:hover, .main-nav a.active {
  background: var(--off-white);
  color: var(--blue);
  text-decoration: none;
}
.header-actions { display: flex; align-items: center; gap: 0.6rem; }
.header-phone {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--graphite);
  padding: 0.4rem 0.7rem;
  border: 1.5px solid var(--light-gray);
  border-radius: var(--radius);
  transition: border-color 0.15s, color 0.15s;
}
.header-phone:hover { border-color: var(--blue); color: var(--blue); text-decoration: none; }

/* Hamburger */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
  flex-direction: column;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2.5px;
  background: var(--graphite);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ---- Hero ---- */
.hero {
  background: var(--off-white);
  border-bottom: 2px solid var(--light-gray);
  padding: 3rem 0 2.5rem;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
}
.hero-content { }
.hero-eyebrow {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 0.7rem;
}
.hero h1 { margin-bottom: 1rem; }
.hero-sub {
  font-size: 1.05rem;
  color: var(--graphite);
  margin-bottom: 1.5rem;
  max-width: 520px;
}
.hero-ctas { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-bottom: 1.8rem; }
.hero-service-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.7rem;
}
.service-card-mini {
  background: var(--white);
  border: 1.5px solid var(--light-gray);
  border-radius: var(--radius);
  padding: 0.9rem 0.75rem;
  text-align: center;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--dark);
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s, color 0.15s;
  text-decoration: none;
  display: block;
}
.service-card-mini:hover {
  border-color: var(--blue);
  color: var(--blue);
  box-shadow: var(--shadow);
  text-decoration: none;
}
.service-card-mini .card-icon {
  font-size: 1.4rem;
  margin-bottom: 0.35rem;
  display: block;
}
.hero-visual {
  background: var(--light-gray);
  border-radius: 6px;
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  text-align: center;
}
.img-placeholder {
  color: var(--mid-gray);
  font-size: 0.88rem;
  font-style: italic;
  line-height: 1.5;
  border: 2px dashed var(--mid-gray);
  border-radius: 4px;
  padding: 2rem 1.5rem;
  width: 100%;
}
.img-placeholder strong { display: block; color: var(--graphite); font-style: normal; margin-bottom: 0.3rem; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.05em; }

/* ---- Trust Strip ---- */
.trust-strip {
  background: var(--blue);
  padding: 0.9rem 0;
}
.trust-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  align-items: center;
  justify-content: center;
}
.trust-chip {
  color: var(--white);
  font-size: 0.88rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.trust-chip::before {
  content: '✓';
  font-weight: 700;
  color: #7ec8e3;
  font-size: 0.85rem;
}

/* ---- Service Blocks ---- */
.service-blocks {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}
.service-block {
  background: var(--white);
  border: 1.5px solid var(--light-gray);
  border-radius: 6px;
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  transition: box-shadow 0.15s, border-color 0.15s;
}
.service-block:hover { box-shadow: var(--shadow-md); border-color: var(--blue); }
.service-block-icon {
  font-size: 1.8rem;
  color: var(--blue);
}
.service-block h3 { margin-bottom: 0; }
.service-block p { color: var(--graphite); font-size: 0.95rem; flex: 1; }

/* ---- Differentiation ---- */
.diff-list {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem 2rem;
}
.diff-list li {
  padding: 0.6rem 0 0.6rem 1.6rem;
  position: relative;
  font-size: 0.97rem;
  border-bottom: 1px solid var(--light-gray);
}
.diff-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--orange);
  font-weight: 700;
}

/* ---- Reference Cards ---- */
.ref-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.ref-card {
  background: var(--white);
  border: 1.5px solid var(--light-gray);
  border-radius: 6px;
  padding: 1.25rem 1.2rem;
  transition: box-shadow 0.15s;
}
.ref-card:hover { box-shadow: var(--shadow); }
.ref-card-tag {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--blue);
  margin-bottom: 0.4rem;
}
.ref-card h4 { font-size: 1rem; margin-bottom: 0.2rem; }
.ref-card-meta { font-size: 0.83rem; color: var(--mid-gray); }

/* ---- Process Steps ---- */
.process-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  counter-reset: steps;
}
.process-step {
  position: relative;
  padding: 1.5rem;
  background: var(--white);
  border-radius: 6px;
  border: 1.5px solid var(--light-gray);
}
.step-number {
  width: 2.2rem;
  height: 2.2rem;
  background: var(--blue);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 0.85rem;
}
.process-step h4 { margin-bottom: 0.4rem; }
.process-step p { font-size: 0.93rem; color: var(--graphite); margin: 0; }

/* ---- Partner Tiles ---- */
.partner-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}
.partner-tile {
  background: var(--white);
  border: 1.5px solid var(--light-gray);
  border-radius: var(--radius);
  padding: 0.55rem 1rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--graphite);
  white-space: nowrap;
}

/* ---- FAQ Accordion ---- */
.faq-list { list-style: none; padding: 0; }
.faq-item {
  border-bottom: 1.5px solid var(--light-gray);
}
.faq-item:first-child { border-top: 1.5px solid var(--light-gray); }
.faq-question {
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  padding: 1rem 2.5rem 1rem 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--dark);
  cursor: pointer;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.faq-question::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--blue);
  font-weight: 400;
  flex-shrink: 0;
  transition: transform 0.2s;
}
.faq-item.open .faq-question::after { transform: rotate(45deg); }
.faq-answer {
  display: none;
  padding: 0 0 1rem;
  font-size: 0.95rem;
  color: var(--graphite);
  line-height: 1.65;
}
.faq-item.open .faq-answer { display: block; }

/* ---- CTA Strip ---- */
.cta-strip {
  background: var(--blue);
  padding: 2.5rem 0;
  text-align: center;
}
.cta-strip h2 { color: var(--white); margin-bottom: 0.5rem; }
.cta-strip p { color: rgba(255,255,255,0.82); margin-bottom: 1.5rem; font-size: 1.05rem; }
.cta-strip-actions { display: flex; gap: 0.85rem; justify-content: center; flex-wrap: wrap; }

/* ---- Contact Page ---- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 3rem;
  align-items: start;
}
.contact-info h3 { margin-bottom: 1.2rem; }
.contact-detail {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-bottom: 1.5rem;
}
.contact-row {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  font-size: 0.97rem;
}
.contact-row-label {
  font-weight: 600;
  color: var(--dark);
  min-width: 110px;
  flex-shrink: 0;
}
.contact-row a { color: var(--blue); }
.contact-row a:hover { color: var(--orange); }
.contact-legal {
  background: var(--off-white);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  font-size: 0.85rem;
  color: var(--graphite);
}
.contact-legal dt { font-weight: 600; color: var(--dark); }
.contact-legal dd { margin: 0 0 0.4rem 0; }

/* ---- Form ---- */
.form-card {
  background: var(--white);
  border: 1.5px solid var(--light-gray);
  border-radius: 6px;
  padding: 2rem;
  box-shadow: var(--shadow);
}
.form-card h3 { margin-bottom: 1.3rem; font-size: 1.2rem; }
.form-group { margin-bottom: 1.1rem; }
.form-group label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--dark);
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border: 1.5px solid var(--light-gray);
  border-radius: var(--radius);
  font-family: var(--font-main);
  font-size: 0.95rem;
  color: var(--dark);
  background: var(--white);
  transition: border-color 0.15s;
  appearance: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--blue);
}
.form-group textarea { resize: vertical; min-height: 110px; }
.form-microcopy {
  font-size: 0.8rem;
  color: var(--mid-gray);
  margin-top: 0.6rem;
}
.form-success {
  display: none;
  background: #e8f5e9;
  border: 1.5px solid #a5d6a7;
  border-radius: var(--radius);
  padding: 1rem 1.2rem;
  color: #2e7d32;
  font-size: 0.95rem;
  margin-top: 1rem;
}

/* ---- Service Detail Page ---- */
.service-detail-header {
  background: var(--off-white);
  border-bottom: 2px solid var(--light-gray);
  padding: 2.5rem 0 2rem;
}
.service-detail-header h1 { margin-bottom: 0.6rem; }
.service-detail-header p { font-size: 1.05rem; color: var(--graphite); max-width: 640px; margin: 0; }

.service-list-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}
.service-list-item {
  background: var(--off-white);
  border-left: 3px solid var(--blue);
  padding: 0.85rem 1rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 0.97rem;
  font-weight: 500;
}

.renewables-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}
.renewable-item {
  background: var(--orange-light);
  border-left: 3px solid var(--orange);
  padding: 0.85rem 1rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 0.97rem;
  font-weight: 500;
}

/* ---- References Page ---- */
.ref-filter-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}
.ref-tab {
  padding: 0.5rem 1.2rem;
  border: 1.5px solid var(--light-gray);
  border-radius: 20px;
  background: var(--white);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  color: var(--graphite);
}
.ref-tab.active, .ref-tab:hover {
  background: var(--blue);
  border-color: var(--blue);
  color: var(--white);
}
.ref-section { display: block; }
.ref-section.hidden { display: none; }

/* ---- Pályázatírás Page ---- */
.palyazat-sections { display: flex; flex-direction: column; gap: 1.5rem; }
.palyazat-block {
  background: var(--white);
  border: 1.5px solid var(--light-gray);
  border-radius: 6px;
  padding: 1.75rem 1.75rem;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.25rem;
  align-items: start;
}
.palyazat-num {
  width: 2.5rem;
  height: 2.5rem;
  background: var(--blue);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  flex-shrink: 0;
}
.palyazat-block h3 { margin-bottom: 0.4rem; }
.palyazat-block p { margin: 0; font-size: 0.97rem; color: var(--graphite); }

/* ---- Audience List ---- */
.audience-list {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.6rem;
}
.audience-list li {
  background: var(--off-white);
  border-left: 3px solid var(--blue);
  padding: 0.75rem 1rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 0.97rem;
  font-weight: 500;
  text-transform: capitalize;
}

/* ---- Footer ---- */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,0.75);
  padding: 2.5rem 0 1.5rem;
  border-top: 3px solid var(--blue);
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}
.footer-brand .logo-name { color: var(--white); font-size: 1.1rem; }
.footer-brand .logo-desc { color: rgba(255,255,255,0.45); }
.footer-brand p { font-size: 0.88rem; margin-top: 0.7rem; line-height: 1.5; }
.footer-col h4 { color: var(--white); font-size: 0.9rem; margin-bottom: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em; }
.footer-col ul { list-style: none; padding: 0; }
.footer-col ul li { margin-bottom: 0.45rem; }
.footer-col ul li a { color: rgba(255,255,255,0.65); font-size: 0.9rem; transition: color 0.15s; }
.footer-col ul li a:hover { color: var(--white); text-decoration: none; }
.footer-contact-item { font-size: 0.88rem; margin-bottom: 0.4rem; }
.footer-contact-item a { color: rgba(255,255,255,0.75); }
.footer-contact-item a:hover { color: var(--white); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 1.2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.45);
}

/* ---- Sticky Mobile Bar ---- */
.sticky-mobile-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--dark);
  border-top: 2px solid var(--blue);
  padding: 0.65rem 1rem;
  z-index: 200;
  gap: 0.6rem;
}
.sticky-mobile-bar .btn { flex: 1; text-align: center; padding: 0.7rem 0.5rem; font-size: 0.9rem; }

/* ---- Page Hero (inner pages) ---- */
.page-hero {
  background: var(--off-white);
  border-bottom: 2px solid var(--light-gray);
  padding: 2.5rem 0;
}
.page-hero h1 { margin-bottom: 0.5rem; }
.page-hero .lead {
  font-size: 1.05rem;
  color: var(--graphite);
  max-width: 640px;
  margin: 0;
}

/* ---- Breadcrumb ---- */
.breadcrumb {
  font-size: 0.82rem;
  color: var(--mid-gray);
  margin-bottom: 0.6rem;
}
.breadcrumb a { color: var(--mid-gray); }
.breadcrumb a:hover { color: var(--blue); }
.breadcrumb span { margin: 0 0.3rem; }

/* ---- Motto ---- */
.motto-block {
  background: var(--blue);
  color: var(--white);
  padding: 1.5rem 2rem;
  border-radius: 6px;
  text-align: center;
  margin-bottom: 2rem;
}
.motto-block blockquote {
  font-size: 1.3rem;
  font-style: italic;
  font-weight: 600;
  margin: 0;
  color: var(--white);
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { min-height: 200px; }
  .service-blocks { grid-template-columns: 1fr; }
  .ref-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .diff-list { grid-template-columns: 1fr; }
  .service-list-grid { grid-template-columns: 1fr; }
  .renewables-grid { grid-template-columns: 1fr; }
  .audience-list { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .main-nav { display: none; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: var(--white); border-bottom: 2px solid var(--light-gray); padding: 0.75rem 1.25rem; box-shadow: var(--shadow-md); }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 0.65rem 0.5rem; border-radius: 0; border-bottom: 1px solid var(--light-gray); }
  .nav-toggle { display: flex; }
  .header-phone { display: none; }
  .site-header { position: sticky; }
  .hero-service-cards { grid-template-columns: 1fr; }
  .ref-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .trust-chips { flex-direction: column; align-items: flex-start; padding: 0 1.25rem; }
  .sticky-mobile-bar { display: flex; }
  body { padding-bottom: 70px; }
  .palyazat-block { grid-template-columns: 1fr; }
  .hero-ctas .btn { width: 100%; text-align: center; }
}

@media (max-width: 480px) {
  .section { padding: 2.5rem 0; }
  h1 { font-size: 1.55rem; }
  .form-card { padding: 1.25rem; }
}