/* ==========================================================================
   TÖRZSKÖNYV & GÉPÉSZETI ARCULATI RENDSZER (RETRO-MŰSZAKI DOKUMENTUM)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* --- Alapértelmezett sötét téma --- */
:root {
  --bg-core: #101114;
  --bg-sheet: #16181d;
  --bg-inset: #0d0e11;
  --bg-mockup: #121317;
  
  --border-dim: #262930;
  --border-focus: #3d424e;
  --border-accent: #d99b26;
  
  --text-main: #dcdcdc;
  --text-muted: #8b909a;
  --text-bright: #ffffff;
  
  --amber: #d99b26;
  --amber-hover-bg: rgba(217, 155, 38, 0.08);
  --amber-glow: rgba(217, 155, 38, 0.5);
  --cat-cell-border: rgba(217, 155, 38, 0.35);
  --cat-mockup-bg: rgba(217, 155, 38, 0.03);
  --badge-bg: rgba(255, 255, 255, 0.04);
  --strip-bg: rgba(255, 255, 255, 0.02);
  --modal-overlay-bg: rgba(10, 11, 14, 0.88);
  
  --green-ok: #3fb950;
  --green-glow: rgba(63, 185, 80, 0.6);
  
  --font-mono: 'JetBrains Mono', Consolas, monospace;
  --font-sans: 'Space Grotesk', system-ui, -apple-system, sans-serif;

  /* Vasúti vágányhálózat háttér színek */
  --track-rail: #2d3340;
  --track-sleeper: #262c37;
  --track-active: #d99b26;
  --track-active-glow: rgba(217, 155, 38, 0.45);
  --track-label: #737c8e;
  --track-signal-mast: #3e4656;

  /* Feszes, nem szétfolyó szélesség */
  --sheet-max-width: 1000px;
  --sheet-shadow: 
    0 24px 56px rgba(0, 0, 0, 0.75),
    0 0 0 1px rgba(255, 255, 255, 0.04),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
  --body-bg-pattern: 
    radial-gradient(circle at 16% 320px, rgba(30, 58, 138, 0.07) 0%, transparent 50%),
    radial-gradient(circle at 84% 450px, rgba(217, 155, 38, 0.06) 0%, transparent 50%),
    radial-gradient(circle at 50% 180px, rgba(217, 155, 38, 0.045) 0%, transparent 65%),
    radial-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px);
}

/* --- Világos téma (Mérnöki pauszpapír / archív műszaki dokumentum) --- */
[data-theme="light"] {
  --bg-core: #eaeef3;
  --bg-sheet: #ffffff;
  --bg-inset: #f3f5f8;
  --bg-mockup: #e5e9f0;
  
  --border-dim: #d1d6e0;
  --border-focus: #959fae;
  --border-accent: #b45309;
  
  --text-main: #242932;
  --text-muted: #5e6675;
  --text-bright: #0c0f14;
  
  --amber: #b45309;
  --amber-hover-bg: rgba(180, 83, 9, 0.08);
  --amber-glow: rgba(180, 83, 9, 0.4);
  --cat-cell-border: rgba(180, 83, 9, 0.45);
  --cat-mockup-bg: rgba(180, 83, 9, 0.06);
  --badge-bg: rgba(0, 0, 0, 0.05);
  --strip-bg: rgba(0, 0, 0, 0.025);
  --modal-overlay-bg: rgba(15, 23, 42, 0.75);
  
  --green-ok: #15803d;
  --green-glow: rgba(21, 128, 61, 0.4);
  
  /* Vasúti vágányhálózat háttér színek */
  --track-rail: #c8cfda;
  --track-sleeper: #d5dbe4;
  --track-active: #b45309;
  --track-active-glow: rgba(180, 83, 9, 0.35);
  --track-label: #6b7687;
  --track-signal-mast: #9aa4b5;
  --sheet-shadow: 
    0 20px 48px rgba(15, 23, 42, 0.1),
    0 0 0 1px rgba(0, 0, 0, 0.06);
  --body-bg-pattern: 
    radial-gradient(circle at 16% 320px, rgba(59, 130, 246, 0.04) 0%, transparent 50%),
    radial-gradient(circle at 84% 450px, rgba(180, 83, 9, 0.045) 0%, transparent 50%),
    radial-gradient(circle at 50% 180px, rgba(180, 83, 9, 0.04) 0%, transparent 65%),
    radial-gradient(rgba(0, 0, 0, 0.07) 1px, transparent 1px);
}

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

body {
  background-color: var(--bg-core);
  /* Kombinált mérnöki háttér: aszimmetrikus műhelyfények + diszkrét pontmátrix háló */
  background-image: var(--body-bg-pattern);
  background-size: 100% 100%, 22px 22px;
  background-attachment: fixed;
  
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.6;
  padding: 32px 16px 64px 16px;
  display: flex;
  justify-content: center;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  transition: background-color 0.25s ease, color 0.25s ease;
}

.registry-sheet {
  width: 100%;
  max-width: var(--sheet-max-width);
  background-color: var(--bg-sheet);
  border: 1px solid var(--border-dim);
  
  /* Fizikai jelenlét: mély árnyék + technikai peremfény körben */
  box-shadow: var(--sheet-shadow);
  position: relative;
  z-index: 1;
  animation: sheet-slide-in 0.45s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  will-change: transform, opacity;
  transition: background-color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

@keyframes sheet-slide-in {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================================================
   FEJLÉC: AZONOSÍTÓK, STÁTUSZOK ÉS KÉPMEZŐ
   ========================================================================== */

.registry-header {
  border-bottom: 2px solid var(--border-dim);
  background-color: var(--bg-sheet);
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

.header-meta-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 8px 16px;
  background-color: var(--bg-inset);
  border-bottom: 1px solid var(--border-dim);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

.meta-indicators {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.cat-status {
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
}

.status-separator {
  color: var(--border-focus);
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-main);
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: var(--amber);
  box-shadow: 0 0 6px var(--amber-glow);
  border-radius: 50%;
}

/* Színváltó gomb a fejlécben */
.theme-toggle-btn {
  background: transparent;
  border: 1px dashed var(--border-focus);
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 2px 8px;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  line-height: 1.4;
}

.theme-toggle-btn:hover {
  background-color: var(--amber-hover-bg);
  border-color: var(--amber);
  border-style: solid;
}

.theme-toggle-btn:active {
  transform: scale(0.97);
}

.header-body {
  display: flex;
  justify-content: space-between;
  align-items: stretch;
  padding: 24px 20px;
  gap: 24px;
}

.header-titles {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.title-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--amber);
  letter-spacing: 0.12em;
  margin-bottom: 8px;
}

.main-title {
  font-family: var(--font-mono);
  font-size: clamp(22px, 3.2vw, 30px);
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--text-bright);
  line-height: 1.25;
}

/* Grafikai tálca */
.header-artwork-box {
  width: 320px;
  height: 240px;
  flex-shrink: 0;
  border: 1px solid var(--border-focus);
  background-color: var(--bg-inset);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

.header-artwork-box img,
.header-artwork-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  will-change: transform;
}

.artwork-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--text-muted);
  text-align: center;
  padding: 12px;
}

.artwork-placeholder svg {
  width: 52px;
  height: 52px;
  stroke: var(--text-muted);
}

.artwork-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--amber);
}

/* Gyors-kapcsolati sáv a fejlécben */
.header-contact-strip {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding: 8px 20px;
  background-color: var(--strip-bg);
  border-top: 1px solid var(--border-dim);
  font-family: var(--font-mono);
  font-size: 11.5px;
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

.contact-strip-label {
  color: var(--amber);
  font-weight: 700;
}

.strip-link {
  color: var(--text-main);
  text-decoration: none;
  border-bottom: 1px solid var(--border-focus);
  transition: color 0.15s ease, border-color 0.15s ease;
}

.strip-link:hover {
  color: var(--amber);
  border-color: var(--amber);
}

.strip-location {
  margin-left: auto;
  color: var(--text-muted);
}

/* ==========================================================================
   MŰSZAKI TÖRZSLAP SZEKCIÓK
   ========================================================================== */

.section-block {
  padding: 24px 20px;
  border-bottom: 1px solid var(--border-dim);
  transition: border-color 0.25s ease;
}

.section-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--amber);
  letter-spacing: 0.08em;
  margin-bottom: 16px;
  border-bottom: 1px dashed var(--border-dim);
  padding-bottom: 6px;
  transition: border-color 0.25s ease;
}

/* Személyi fotó és táblázat elrendezése */
.personnel-id-row {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  margin-bottom: 16px;
}

.personnel-photo-box {
  width: 240px;
  flex-shrink: 0;
  border: 1px solid var(--border-focus);
  background-color: var(--bg-inset);
  padding: 6px;
  text-align: center;
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

.photo-placeholder-id {
  height: 240px;
  background-color: var(--bg-mockup);
  border: 1px dashed var(--border-dim);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

.photo-placeholder-id svg {
  width: 36px;
  height: 36px;
}

.id-photo-label {
  font-family: var(--font-mono);
  font-size: 9.5px;
  color: var(--text-muted);
  margin-top: 6px;
  letter-spacing: 0.06em;
}

.personnel-data-col {
  flex: 1;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 13px;
  margin-bottom: 14px;
}

.data-table td {
  padding: 6px 0;
  vertical-align: top;
}

.data-table .field-name {
  width: 32%;
  color: var(--text-muted);
}

.data-table .field-val {
  color: var(--text-main);
}

.field-subnote {
  font-size: 11.5px;
  color: var(--text-muted);
  margin-top: 3px;
  font-style: italic;
}

.entry-desc {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ==========================================================================
   OKTATÁSI BLOKK & TANTÁRGYI KÁRTYÁK
   ========================================================================== */

.teaching-block {
  margin-top: 18px;
}

.sub-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--amber);
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.course-card {
  background-color: var(--bg-inset);
  border: 1px solid var(--border-dim);
  border-left: 3px solid var(--border-focus);
  padding: 14px 16px;
  margin-bottom: 12px;
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

.course-card:hover {
  border-left-color: var(--amber);
}

.course-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 8px;
}

.course-title {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
  color: var(--text-bright);
}

.course-code {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}

.course-badge {
  font-family: var(--font-mono);
  font-size: 10.5px;
  padding: 3px 7px;
  background-color: var(--badge-bg);
  border: 1px solid var(--border-dim);
  color: var(--amber);
  white-space: nowrap;
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

.course-desc {
  font-size: 13px;
  color: var(--text-main);
  line-height: 1.5;
}

.course-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px dashed var(--border-dim);
}

/* ==========================================================================
   TERKA PROJEKT & EASTER EGG PECSÉT
   ========================================================================== */

.project-card {
  background-color: var(--bg-inset);
  border: 1px solid var(--border-dim);
  padding: 16px;
  margin-bottom: 16px;
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
  gap: 16px;
}

.project-code {
  font-family: var(--font-mono);
  font-size: 14.5px;
  font-weight: 700;
  color: var(--text-bright);
}

.stamp-trigger {
  background: transparent;
  border: 1px dashed var(--border-focus);
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 6px 10px;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
  white-space: nowrap;
}

.stamp-trigger:hover {
  background-color: var(--amber-hover-bg);
  border-color: var(--amber);
}

.stamp-trigger:active {
  transform: scale(0.98);
}

.button-group {
  display: flex;
  gap: 10px;
  margin-top: 14px;
  flex-wrap: wrap;
}

.action-link {
  display: inline-block;
  padding: 6px 14px;
  background-color: var(--bg-sheet);
  border: 1px solid var(--border-focus);
  color: var(--text-main);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 12px;
  transition: all 0.15s ease;
}

.action-link:hover {
  border-color: var(--amber);
  color: var(--amber);
}

/* ==========================================================================
   TEREPI FOTÓDOKUMENTÁCIÓ
   ========================================================================== */

.photo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.photo-cell {
  background-color: var(--bg-inset);
  border: 1px solid var(--border-dim);
  padding: 8px;
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

.photo-cell.cat-cell {
  border-color: var(--cat-cell-border);
}

.photo-mockup {
  height: 150px;
  background-color: var(--bg-mockup);
  border: 1px solid var(--border-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 8px;
  color: var(--border-focus);
  font-family: var(--font-mono);
  font-size: 11px;
  transition: background-color 0.25s ease, border-color 0.25s ease, color 0.25s ease;
}

.photo-mockup.cat-mockup {
  color: var(--amber);
  background-color: var(--cat-mockup-bg);
}

.photo-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.4;
}

/* ==========================================================================
   LÁBLÉC / FŐVIZSGA ÉS 3FA PROTOKOLL
   ========================================================================== */

.registry-footer {
  padding: 18px 20px 22px 20px;
  background-color: var(--bg-inset);
  border-top: 2px solid var(--border-dim);
  font-family: var(--font-mono);
  font-size: 11.5px;
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

.security-protocol {
  border-left: 2px solid var(--amber);
  padding-left: 12px;
  margin-bottom: 16px;
  color: var(--text-muted);
}

.protocol-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 4px;
}

.protocol-header strong {
  color: var(--text-main);
  letter-spacing: 0.04em;
}

.protocol-sub {
  color: var(--text-muted);
  font-size: 10.5px;
}

.protocol-steps {
  color: var(--text-muted);
}

.footer-meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px 16px;
  padding-top: 14px;
  border-top: 1px dashed var(--border-dim);
  color: var(--text-muted);
  transition: border-color 0.25s ease;
}

.meta-label {
  color: var(--border-focus);
  margin-right: 4px;
  font-weight: 700;
}

.secret-link {
  color: var(--text-main);
  text-decoration: underline dotted var(--border-focus);
  transition: all 0.15s ease;
}

.secret-link:hover {
  color: var(--amber);
  text-decoration: underline solid var(--amber);
}

.status-code {
  color: var(--green-ok);
}

.blinking-cursor {
  display: inline-block;
  color: var(--green-ok);
  margin-left: 4px;
  font-size: 10px;
  animation: cursor-blink 1.2s steps(2, start) infinite;
}

@keyframes cursor-blink {
  to { visibility: hidden; }
}

/* ==========================================================================
   EASTER EGG OVERLAY & PÖRGŐRÓKA
   ========================================================================== */

.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: var(--modal-overlay-bg);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  padding: 16px;
  transition: background-color 0.25s ease;
}

.modal-overlay.hidden {
  display: none !important;
}

.foxcomm-window {
  width: 100%;
  max-width: 440px;
  background-color: var(--bg-sheet);
  border: 2px solid var(--amber);
  padding: 20px;
  box-shadow: 0 0 24px rgba(217, 155, 38, 0.25);
  font-family: var(--font-mono);
  text-align: center;
  transition: background-color 0.25s ease;
}

.fox-spinner-box {
  width: 72px;
  height: 72px;
  margin: 16px auto;
  border: 1px solid var(--border-dim);
  background: var(--bg-inset);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

.spinning-fox {
  width: 48px;
  height: 48px;
  animation: fox-spin 0.5s linear infinite;
}

@keyframes fox-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* ==========================================================================
   VASÚTI VÁGÁNYHÁLÓZAT HÁTTÉR (SCHEMATIC TRACK BACKDROP)
   ========================================================================== */

.railway-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}

.railway-backdrop-img {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 1920px;
  height: 2200px;
  max-width: none;
  pointer-events: none;
  user-select: none;
  opacity: 0.92;
  transition: opacity 0.25s ease, filter 0.25s ease;
}

[data-theme="light"] .railway-backdrop-img {
  opacity: 0.45;
  filter: contrast(1.15);
}

/* Fotók és képek beillesztése */
.id-photo,
.personnel-photo-box img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  display: block;
  image-rendering: auto;
  will-change: transform;
}

.cell-photo,
.photo-cell img {
  width: 100%;
  height: 75%;
  object-fit: cover;
  display: block;
  margin-bottom: 8px;
  border: 1px solid var(--border-dim);
  image-rendering: -webkit-optimize-contrast; /* WebKit/Blink motorhoz */
  image-rendering: high-quality;             /* Szabványos, simított lekicsinyítés */
  will-change: transform;
}

@media (max-width: 1100px) {
  .railway-backdrop {
    display: none;
  }
}

/* ==========================================================================
   RESZPONZÍV SZABÁLYOK
   ========================================================================== */

@media (max-width: 720px) {
  .header-body {
    flex-direction: column-reverse;
  }
  .header-artwork-box {
    width: 100%;
    height: 220px;
  }
  .photo-grid {
    grid-template-columns: 1fr;
  }
  .data-table .field-name {
    width: 45%;
  }
  .cat-status,
  .status-separator.cat-sep {
    display: none;
  }
}

@media (max-width: 650px) {
  .personnel-id-row {
    flex-direction: column;
    align-items: center;
  }
  .strip-location {
    margin-left: 0;
  }
}

@media (max-width: 600px) {
  .footer-meta-grid {
    grid-template-columns: 1fr;
  }
}