/* ==========================================
   STÍLUSOK & SZÍNPALETTA
   ========================================== */
:root {
  --primary: #0F4C81;          /* Kék főszín */
  --primary-hover: #0a3459;
  --triadic-1: #810F4C;        /* Bíbor */
  --triadic-2: #4C810F;        /* Zöld */

  --bg-light: #F8FAFC;
  --card-bg: #FFFFFF;
  --text-main: #1A202C;
  --text-muted: #4A5568;
  --border-color: #E2E8F0;
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --transition: all 0.25s ease-in-out;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  min-height: 100vh;
  font-family: 'Inter', -apple-system, sans-serif;
  color: var(--text-main);
  background-color: var(--bg-light);
  line-height: 1.6;
}

body {
  display: flex;
  flex-direction: column;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ==========================================
   NYELVVÁLTÁS REJTÉS/MEGJELENÍTÉS LOGIKA
   ========================================== */
html[data-lang="hu"] .lang-en {
  display: none !important;
}

html[data-lang="en"] .lang-hu {
  display: none !important;
}

/* ==========================================
   NAVIGÁCIÓ & NYELVVÁLTÓ
   ========================================== */
.navbar {
  position: sticky;
  top: 0;
  background-color: #FFFFFF;
  border-bottom: 3px solid var(--primary);
  z-index: 1000;
  padding: 12px 0;
  box-shadow: var(--shadow-sm);
}

.nav-container {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
}

.brand-name {
  grid-column: 1;
  justify-self: start;
  white-space: nowrap;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
}

.nav-right {
  grid-column: 2;
  justify-self: center;
  display: flex;
  align-items: center;
  gap: 15px;
}

.lang-switcher {
  display: flex;
  align-items: center;
  gap: 6px;
  background-color: #f1f5f9;
  padding: 4px 10px;
  border-radius: 20px;
  border: 1px solid var(--border-color);
}

.lang-btn {
  background: none;
  border: none;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-muted);
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
  transition: var(--transition);
}

.lang-btn.active {
  color: #FFFFFF;
  background-color: var(--primary);
}

.lang-divider {
  color: #cbd5e1;
  font-size: 0.8rem;
}

.nav-menu ul {
  display: flex;
  list-style: none;
  gap: 10px;
}

.nav-menu {
  grid-column: 3;
  justify-self: end;
}

.nav-link {
  text-decoration: none;
  color: var(--text-main);
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 6px;
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--primary);
  background-color: rgba(15, 76, 129, 0.05);
}

.nav-link.active {
  color: #FFFFFF;
  background-color: var(--primary);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
}

.menu-toggle .bar {
  display: block;
  width: 24px;
  height: 3px;
  margin: 4px 0;
  background-color: var(--primary);
}

/* ==========================================
   REFERENCIÁK ALMENÜ (TAB-OK)
   ========================================== */
.ref-subnav {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-bottom: 30px;
  flex-wrap: wrap;
}

.ref-tab-btn {
  padding: 12px 24px;
  font-size: 1rem;
  font-weight: 600;
  border: 2px solid var(--primary);
  background-color: transparent;
  color: var(--primary);
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition);
}

.ref-tab-btn:hover {
  background-color: rgba(15, 76, 129, 0.1);
}

.ref-tab-btn.active {
  background-color: var(--primary);
  color: #ffffff;
}

/* Tab tartalmak elrejtése/megjelenítése */
.ref-tab-content {
  display: none;
}

.ref-tab-content.active {
  display: block;
  animation: fadeIn 0.4s ease-in-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================
   TAB / PAGE VISIBILITY
   ========================================== */
.main-content {
  flex: 1;
  padding: 40px 0;
}

.page-section {
  display: none;
}

.page-section.active {
  display: block;
  animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.section-title {
  font-size: 2rem;
  color: var(--primary);
  text-align: center;
  margin-bottom: 6px;
}

.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: 35px;
  font-size: 0.95rem;
}

/* ==========================================
   HERO / HOME
   ========================================== */
.hero-container {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
}

.subtitle {
  color: var(--triadic-1);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  font-size: 0.85rem;
}

.hero-text h1 {
  font-size: 2.6rem;
  color: var(--primary);
  margin: 8px 0;
  line-height: 1.1;
}

.hero-text h2 {
  font-size: 1.2rem;
  color: var(--text-muted);
  font-weight: 400;
  margin-bottom: 20px;
}

.hero-text .description {
  color: var(--text-muted);
  margin-bottom: 25px;
  font-size: 0.95rem;
}

.hero-status {
  color: var(--primary);
  font-size: 0.9rem;
  font-weight: 600;
  margin: -8px 0 22px;
}

.hero-buttons {
  display: flex;
  gap: 12px;
}

.btn {
  display: inline-block;
  padding: 10px 22px;
  border-radius: 6px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.btn-primary { background-color: var(--primary); color: #FFFFFF; }
.btn-primary:hover { background-color: var(--primary-hover); }

.btn-secondary { background-color: var(--triadic-1); color: #FFFFFF; }
.btn-secondary:hover { background-color: #5d0a36; }

.portrait-card {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.portrait-img { width: 100%; display: block; }
.portrait-badge {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: rgba(15, 76, 129, 0.9);
  color: #FFFFFF;
  padding: 8px;
  text-align: center;
  font-weight: 600;
  font-size: 0.9rem;
}

/* ==========================================
   CASE STUDIES DESIGN (image_e22a97.png ILLÉSKEDÉS)
   ========================================== */
.portfolio-list {
  display: flex;
  flex-direction: column;
  gap: 35px;
}

.cs-card {
  min-width: 0;
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  border-radius: 8px;
  padding: 30px;
  box-shadow: var(--shadow-sm);
}

.cs-title {
  color: #0F4C81;
  font-size: 1.3rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.cs-domains {
  font-style: italic;
  color: #4A5568;
  font-size: 0.92rem;
  margin-bottom: 18px;
}

.cs-domains strong {
  font-style: normal;
  color: #1A202C;
}

.cs-section-header {
  font-weight: 700;
  color: #1A202C;
  font-size: 0.98rem;
  margin-top: 14px;
  margin-bottom: 6px;
}

.cs-section-header span {
  font-weight: 700;
  color: #0F4C81;
}

.cs-text {
  color: #2D3748;
  font-size: 0.93rem;
  line-height: 1.6;
  margin-bottom: 12px;
}

/* RENDSZERARCHITEKTÚRA DOBOZ (Kép szerinti pontozott keret kék csíkkal) */
.cs-architecture-box {
  border: 1px dashed #A0AEC0;
  border-left: 4px solid #0F4C81;
  background-color: #FAFCFF;
  padding: 16px 20px;
  margin: 18px 0;
  border-radius: 4px;
}

.cs-box-title {
  color: #0F4C81;
  font-weight: 700;
  font-size: 1.02rem;
  margin-bottom: 10px;
}

.cs-architecture-box ul {
  list-style: none;
  padding-left: 0;
}

.cs-architecture-box li {
  margin-bottom: 8px;
  font-size: 0.92rem;
  line-height: 1.5;
  color: #2D3748;
}

.cs-architecture-box li strong {
  color: #1A202C;
}

.cs-architecture-box li span {
  font-style: italic;
  color: #4A5568;
}

/* PROCESSDIAGRAM (Kép szerinti flow) */
.cs-diagram {
  background-color: #F8FAFC;
  border: 1px solid #E2E8F0;
  padding: 12px;
  margin: 14px 0;
  border-radius: 6px;
  font-family: monospace;
  font-size: 0.88rem;
  color: #0F4C81;
  text-align: center;
  font-weight: 600;
  overflow-x: auto;
}

/* EREDMÉNYEK DOBOZ (Kép szerinti szürke/kék háttér zöld pipákkal) */
.cs-impact-box {
  background-color: #EDF2F7;
  border: 1px solid #CBD5E0;
  padding: 18px 20px;
  margin-top: 18px;
  border-radius: 6px;
}

.cs-impact-box .cs-box-title {
  color: #0F4C81;
  margin-bottom: 10px;
}

.cs-impact-box ul {
  list-style: none;
  padding-left: 0;
}

.cs-impact-box li {
  margin-bottom: 8px;
  font-size: 0.92rem;
  color: #2D3748;
  font-style: italic;
}

.cs-impact-box li .cs-check {
  color: #2E7D32;
  font-weight: bold;
  font-style: normal;
  margin-right: 6px;
}

.cs-impact-box li strong {
  color: #1B5E20;
  font-style: normal;
}

/* CASE STUDY SCREENSHOTS */
.cs-image-gallery {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin-top: 20px;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  box-sizing: border-box;
}

.cs-image-figure {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  margin: 0;
  overflow: hidden;
  box-sizing: border-box;
  border: 1px solid #E2E8F0;
  border-radius: 8px;
  background: #F8FAFC;
}

.cs-image-link {
  display: block;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  cursor: zoom-in;
  background: #FFFFFF;
}

.cs-image-link img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}

.cs-image-figure figcaption {
  padding: 10px 12px;
  color: #4A5568;
  font-size: 0.88rem;
  line-height: 1.45;
  text-align: left;
}

/* ==========================================
   CV SECTION
   ========================================== */
.cv-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  background: #FFFFFF;
  padding: 35px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.cv-column h3 {
  color: var(--primary);
  margin-bottom: 16px;
  border-bottom: 2px solid var(--triadic-1);
  padding-bottom: 6px;
  font-size: 1.15rem;
}

.skills-list {
  list-style: none;
  list-style-type: disc;
  columns: 2; /* Automatically splits the list into 2 columns */
  column-gap: 20px;
  padding-left: 20px; }
.skills-list li {
  padding: 8px 0;
  font-size: 0.9rem;}

.karier-list {
  list-style: none;
  list-style-type: disc;
  column-gap: 20px;
  padding-left: 20px; }
.karier-list li {
  padding: 8px 0;
  font-size: 0.9rem;}

.experience-highlight {
  background-color: rgba(129, 15, 76, 0.04);
  border-left: 4px solid var(--triadic-1);
  padding: 15px;
  border-radius: 4px;
  margin-top: 20px;
}

.experience-highlight h4 {
  color: var(--triadic-1);
  margin-bottom: 6px;
  font-size: 0.95rem;
}

.experience-highlight ul {
  padding-left: 18px;
  color: var(--text-muted);
  font-size: 0.88rem;
}

/* ==========================================
   KAPCSOLATI ŰRLAP
   ========================================== */
.contact-wrapper {
  max-width: 580px;
  margin: 0 auto;
  background: var(--card-bg);
  padding: 30px;
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

.form-group { margin-bottom: 18px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 600; font-size: 0.9rem; }
.form-group input, .form-group textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-family: inherit;
  resize: vertical;
}

.btn-block { width: 100%; }

/* LÁBLÉC */
.footer {
  background-color: var(--primary);
  color: #FFFFFF;
  text-align: center;
  padding: 16px 0;
  font-size: 0.85rem;
  margin-top: auto;
}

/* RESPONSIVE DESIGN */
@media (max-width: 768px) {
  .hero-container, .cv-grid { grid-template-columns: 1fr; }
  .cs-image-gallery { grid-template-columns: 1fr; }
  .nav-container { grid-template-columns: 1fr auto; }
  .nav-right { grid-column: 2; justify-self: end; }
  .lang-switcher {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
  }
  .menu-toggle { display: block; }
  .nav-menu {
    grid-column: 1 / -1;
    justify-self: stretch;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background-color: #FFFFFF;
    border-bottom: 1px solid var(--border-color);
    padding: 15px;
    display: none;
  }
  .nav-menu.active { display: block; }
  .nav-menu ul { flex-direction: column; align-items: center; }
}