/* ==========================================================================
   RUCHY BROWNA – WIRTUALNE LABORATORIUM FIZYCZNE 2D
   Stylizacja UI/UX: 3 Motywy, Zawsze Przypięty Header (Fixed), Grid Layout, RWD
   ========================================================================== */

/* --- 1. ZMIENNE CSS I MOTYWY WIZUALNE --- */

:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, Monaco, monospace;
  --font-serif: 'Georgia', 'Times New Roman', serif;

  --header-height: 64px;
  
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --transition-quick: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Motyw 1: Ciemny Nowoczesny (Domyślny - Głęboki Kosmiczny Granat & Cyjan) */
html[data-theme="dark-modern"] {
  --bg-app: #080c16;
  --bg-header: rgba(8, 12, 22, 0.85);
  --bg-card: rgba(15, 23, 42, 0.72);
  --bg-card-solid: #0f172a;
  --bg-surface: rgba(30, 41, 59, 0.65);
  --bg-input: #1e293b;
  --bg-canvas: #050811;
  --bg-metric: rgba(15, 23, 42, 0.75);

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-card: rgba(255, 255, 255, 0.12);
  --border-active: #00f2fe;

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --accent-cyan: #00f2fe;
  --accent-blue: #38bdf8;
  --accent-indigo: #6366f1;
  --accent-amber: #f59e0b;
  --accent-emerald: #10b981;
  --accent-rose: #f43f5e;

  --accent-primary: #00f2fe;
  --accent-glow: 0 0 20px rgba(0, 242, 254, 0.35);
  --accent-glow-subtle: 0 0 12px rgba(0, 242, 254, 0.2);

  color-scheme: dark;
  --scrollbar-track: #080c16;
  --scrollbar-thumb: #1e293b;
  --scrollbar-thumb-hover: #334155;

  --card-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.08);
  --glass-blur: blur(16px);
  --font-family-body: var(--font-sans);
  --font-family-heading: var(--font-sans);
}

/* Motyw 2: Jasny Nowoczesny (Czysta Biel, Szarość i Głęboki Indygo) */
html[data-theme="light-modern"] {
  --bg-app: #f8fafc;
  --bg-header: rgba(248, 250, 252, 0.9);
  --bg-card: #ffffff;
  --bg-card-solid: #ffffff;
  --bg-surface: #f1f5f9;
  --bg-input: #e2e8f0;
  --bg-canvas: #f8fafc;
  --bg-metric: #f8fafc;

  --border-subtle: #e2e8f0;
  --border-card: #cbd5e1;
  --border-active: #4f46e5;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;

  --accent-cyan: #0284c7;
  --accent-blue: #0ea5e9;
  --accent-indigo: #4f46e5;
  --accent-amber: #d97706;
  --accent-emerald: #059669;
  --accent-rose: #e11d48;

  --accent-primary: #4f46e5;
  --accent-glow: 0 4px 14px rgba(79, 70, 229, 0.25);
  --accent-glow-subtle: 0 2px 8px rgba(79, 70, 229, 0.15);

  color-scheme: light;
  --scrollbar-track: #f1f5f9;
  --scrollbar-thumb: #cbd5e1;
  --scrollbar-thumb-hover: #94a3b8;

  --card-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.07), 0 0 0 1px #e2e8f0;
  --glass-blur: none;
  --font-family-body: var(--font-sans);
  --font-family-heading: var(--font-sans);
}

/* Motyw 3: Jasny Podręcznikowy (Akademicki Styl Papieru Milimetrowego) */
html[data-theme="textbook"] {
  --bg-app: #fcf9f2;
  --bg-header: rgba(252, 249, 242, 0.95);
  --bg-card: #ffffff;
  --bg-card-solid: #ffffff;
  --bg-surface: #f5eedf;
  --bg-input: #e9dec9;
  --bg-canvas: #faf6ea;
  --bg-metric: #f8f2e4;

  --border-subtle: #d8cbb1;
  --border-card: #2d3748;
  --border-active: #1a202c;

  --text-primary: #1a202c;
  --text-secondary: #3b4252;
  --text-muted: #5e687e;

  --accent-cyan: #1e3a8a;
  --accent-blue: #1e3a8a;
  --accent-indigo: #881337;
  --accent-amber: #854d0e;
  --accent-emerald: #166534;
  --accent-rose: #881337;

  --accent-primary: #881337;
  --accent-glow: none;
  --accent-glow-subtle: none;

  color-scheme: light;
  --scrollbar-track: #f5eedf;
  --scrollbar-thumb: #d8cbb1;
  --scrollbar-thumb-hover: #b5a282;

  --card-shadow: 3px 3px 0px #2d3748;
  --glass-blur: none;
  --font-family-body: var(--font-serif);
  --font-family-heading: var(--font-serif);
}

/* --- 2. RESET I BAZOWE REGUŁY CSS --- */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 1.5rem);
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

/* Paski przewijania dostosowane dynamicznie do motywów */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}

::-webkit-scrollbar-thumb {
  background-color: var(--scrollbar-thumb);
  border-radius: 9999px;
  border: 2px solid var(--scrollbar-track);
}

::-webkit-scrollbar-thumb:hover {
  background-color: var(--scrollbar-thumb-hover);
}

::-webkit-scrollbar-corner {
  background: var(--scrollbar-track);
}

body {
  font-family: var(--font-family-body);
  background-color: var(--bg-app);
  color: var(--text-primary);
  line-height: 1.65;
  padding-top: calc(var(--header-height) + 1.25rem);
  -webkit-font-smoothing: antialiased;
  transition: background-color var(--transition-smooth), color var(--transition-smooth);
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-family-heading);
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.25;
}

p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

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

strong {
  color: var(--text-primary);
  font-weight: 600;
}

a {
  color: var(--accent-primary);
  text-decoration: none;
  transition: opacity var(--transition-quick);
}

a:hover {
  opacity: 0.85;
}

button, input, select {
  font-family: inherit;
  font-size: 0.92rem;
}

/* --- 3. ZAWSZE PRZYPIĘTY GÓRNY PASEK NAWIGACJI (FIXED HEADER) --- */

.app-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 9999;
  background: var(--bg-header);
  border-bottom: 1px solid var(--border-subtle);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  display: flex;
  align-items: center;
}

.header-inner {
  max-width: 1540px;
  width: 100%;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
}

/* Brand / Logo */
.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: #0284c7;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
}

html[data-theme="light-modern"] .brand-icon {
  background: #2563eb;
  color: #ffffff;
}

html[data-theme="textbook"] .brand-icon {
  background: #1e3a8a;
  color: #ffffff;
}

.brand-title {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  line-height: 1.1;
}

.brand-badge {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-primary);
  display: block;
}

/* Linki nawigacyjne */
.nav-links {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.nav-link {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-quick);
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
  background: var(--border-subtle);
}

/* Kontrolki nagłówka */
.header-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

/* Segmented Control (Wykład vs Śledztwo Split) */
/* Theme picker - Nowoczesny Segmented Control z Ikonami */
.theme-switcher {
  display: inline-flex;
  align-items: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 3px;
  gap: 3px;
}

.theme-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: transparent;
  color: var(--text-secondary);
  border: none;
  border-radius: calc(var(--radius-sm) - 2px);
  padding: 0.38rem 0.65rem;
  font-size: 0.8rem;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: all var(--transition-quick);
  line-height: 1;
  white-space: nowrap;
}

.theme-btn i {
  font-size: 0.95rem;
  line-height: 1;
}

.theme-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
}

html[data-theme="light-modern"] .theme-btn:hover {
  background: rgba(0, 0, 0, 0.05);
}

html[data-theme="textbook"] .theme-btn:hover {
  background: rgba(0, 0, 0, 0.06);
}

.theme-btn.active {
  background: var(--bg-card-solid);
  color: var(--accent-primary);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.25);
  font-weight: 600;
}

html[data-theme="light-modern"] .theme-btn.active {
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
}

html[data-theme="textbook"] .theme-btn.active {
  background: var(--bg-app);
  border: 1px solid var(--border-card);
  box-shadow: 1px 1px 0px #2d3748;
}

.theme-select {
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.42rem 0.85rem;
  font-size: 0.84rem;
  font-weight: 500;
  cursor: pointer;
  outline: none;
  transition: all var(--transition-quick);
}

.theme-select:hover {
  border-color: var(--border-focus);
}

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

/* --- 4. GŁÓWNY UKŁAD STRONY (JEDEN DOMYŚLNY PRZEPŁYW) --- */

.main-layout {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 1.5rem 4rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 2.25rem;
}

.dossier-top,
.lab-column,
.dossier-bottom {
  display: flex;
  flex-direction: column;
  gap: 2.25rem;
  width: 100%;
}

/* --- 5. NOWOCZESNE KARTY I TYPOGRAFIA (DESIGN SYSTEM) --- */

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--card-shadow);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  position: relative;
  transition: all var(--transition-smooth);
}

html[data-theme="textbook"] .card {
  border-width: 2px;
}

.badge-chapter {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-primary);
  background: var(--border-subtle);
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-xs);
  margin-bottom: 0.85rem;
}

/* Zwiększony odstęp między tytułem a treścią w każdym rozdziale */
.article-card h2 {
  font-size: 1.7rem;
  margin-top: 0;
  margin-bottom: 2rem;
  line-height: 1.35;
  letter-spacing: -0.015em;
}

.article-card h3 {
  font-size: 1.28rem;
  margin-top: 2.35rem;
  margin-bottom: 1.25rem;
  line-height: 1.35;
}

.article-card h4 {
  font-size: 1.1rem;
  margin-top: 1.65rem;
  margin-bottom: 0.95rem;
}

/* Wyrównanie potęg (np. 10^14) na równym poziomie */
sup {
  font-size: 0.65em;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
  top: -0.55em;
  font-weight: 700;
}

/* Unifikacja i pozycjonowanie ikon Phosphor Icons */
.ph, [class^="ph-"], [class*=" ph-"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  vertical-align: -0.125em;
  line-height: 1;
}

.stat-icon-wrap .ph {
  font-size: 1.75rem;
  color: var(--accent-primary);
}

.callout-icon .ph {
  font-size: 1.35rem;
}

.historical-avatar-box .ph {
  font-size: 2.2rem;
  color: var(--accent-primary);
}

.btn-glyph .ph,
.chart-glyph .ph,
.drawer-icon .ph {
  font-size: 1.05rem;
}

.tab-chip .ph,
.preset-pill .ph {
  font-size: 1.05rem;
}

.btn-mission-launch .ph {
  font-size: 1.15rem;
}

/* Hero Card */
.hero-card {
  overflow: hidden;
  position: relative;
}

.hero-glow-ambient {
  position: absolute;
  top: -80px;
  right: -80px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 242, 254, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-cyan);
  background: rgba(0, 242, 254, 0.08);
  border: 1px solid rgba(0, 242, 254, 0.2);
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-xl);
  margin-bottom: 1rem;
}

.pulse-indicator {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 8px var(--accent-cyan);
  animation: pulseDot 2s infinite ease-in-out;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.hero-headline {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-top: 0;
  margin-bottom: 1.25rem;
  background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

html[data-theme="textbook"] .hero-headline {
  background: none;
  -webkit-text-fill-color: var(--text-primary);
  font-style: italic;
}

.hero-lead {
  font-size: 1.12rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 1.75rem;
}

.hero-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1rem;
}

.stat-tile {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem 1.15rem;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  transition: transform var(--transition-quick);
}

.stat-tile:hover {
  transform: translateY(-2px);
}

.stat-icon-wrap {
  font-size: 1.6rem;
  flex-shrink: 0;
}

.stat-label {
  display: block;
  font-size: 0.72rem;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 600;
}

.stat-val {
  display: block;
  font-size: 1.15rem;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-weight: 700;
}

.stat-desc {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Callouts / Wyróżnienia */
.glass-callout {
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-md);
  margin: 1.5rem 0;
  border-left: 4px solid var(--accent-primary);
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  border-right: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.callout-info { border-left-color: var(--accent-cyan); }
.callout-warning { border-left-color: var(--accent-amber); }
.callout-success { border-left-color: var(--accent-emerald); }

.callout-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.math-display {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.1rem 1.5rem;
  margin: 1.25rem 0;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 1.2rem;
  overflow-x: auto;
}

.highlight-math {
  border-color: rgba(0, 242, 254, 0.4);
  box-shadow: var(--accent-glow-subtle);
  background: var(--bg-surface);
}

.hero-equation {
  font-size: 1.45rem;
  padding: 1.5rem;
  border: 2px solid var(--accent-primary);
  box-shadow: var(--accent-glow-subtle);
  background: var(--bg-surface);
}

.styled-bullet-list {
  margin: 0.75rem 0 0.75rem 1.5rem;
  color: var(--text-secondary);
}

.styled-bullet-list li {
  margin-bottom: 0.35rem;
}

/* --- 6. WIRTUALNE LABORATORIUM FIZYCZNE (CANVAS & CONTROLS) --- */

.lab-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--card-shadow);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

html[data-theme="textbook"] .lab-card {
  border: 2px solid var(--border-card);
}

/* Układ Siatki Wirtualnego Laboratorium (2 kolumny desktop, 1 kolumna mobile) */
.lab-body-layout {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  width: 100%;
}

@media (min-width: 1025px) {
  .lab-body-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 400px;
    gap: 1.5rem;
    align-items: start;
  }

  .lab-stage-col {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    min-width: 0;
  }

  .lab-controls-col {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    min-width: 0;
    position: sticky;
    top: calc(var(--header-height) + 1.25rem);
  }
}

@media (max-width: 1024px) {
  .lab-body-layout {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
  }

  .lab-stage-col,
  .lab-controls-col {
    display: contents;
  }

  /* Kolejność na urządzeniach mobilnych i tabletach: Canvas -> Toolbar -> Misje -> Ssuwaki -> Statystyki -> Wykres */
  .canvas-viewport { order: 1; }
  .sim-toolbar { order: 2; }
  .lab-missions-drawer { order: 3; }
  .lab-tabs-panel { order: 4; }
  .telemetry-bar { order: 5; }
  .chart-section { order: 6; }
}

/* HUD Header */
.lab-hud-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.hud-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 10px #10b981;
  animation: pulseDot 1.5s infinite;
}

.status-text {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
}

.hud-badges {
  display: flex;
  gap: 0.4rem;
}

.hud-pill {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-xl);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
}

.hud-pill-mode {
  color: var(--accent-cyan);
}

.hud-pill-fps {
  font-family: var(--font-mono);
  color: var(--text-muted);
}

/* Viewport Canvas */
.canvas-viewport {
  position: relative;
  width: 100%;
  background: var(--bg-canvas);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: inset 0 2px 12px rgba(0, 0, 0, 0.4);
}

#sim-canvas {
  display: block;
  width: 100%;
  cursor: crosshair;
  touch-action: none;
}

.canvas-hint {
  position: absolute;
  bottom: 10px;
  right: 12px;
  background: rgba(0, 0, 0, 0.65);
  color: var(--text-secondary);
  font-size: 0.72rem;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-xs);
  backdrop-filter: blur(6px);
  pointer-events: none;
}

/* Toolbar Akcji */
.sim-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.55rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-quick);
}

.btn-action-primary {
  background: var(--accent-primary);
  color: #080c16;
  box-shadow: var(--accent-glow-subtle);
}

html[data-theme="light-modern"] .btn-action-primary { color: #ffffff; }
html[data-theme="textbook"] .btn-action-primary { color: #ffffff; background: var(--accent-primary); }

.btn-action-primary:hover {
  filter: brightness(1.15);
  transform: translateY(-1px);
}

.btn-action-secondary {
  background: var(--bg-surface);
  color: var(--text-primary);
  border-color: var(--border-subtle);
}

.btn-action-secondary:hover {
  background: var(--border-subtle);
  border-color: var(--border-card);
}

.btn-action-danger {
  background: rgba(244, 63, 94, 0.12);
  color: #fb7185;
  border-color: rgba(244, 63, 94, 0.25);
}

.btn-action-danger:hover {
  background: rgba(244, 63, 94, 0.22);
}

/* Przycisk Misji Badawczych w Toolbarze */
.btn-action-missions {
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.12), rgba(79, 172, 254, 0.16));
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 242, 254, 0.35);
  box-shadow: 0 0 10px rgba(0, 242, 254, 0.1);
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.btn-action-missions:hover,
.btn-action-missions.active {
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.22), rgba(79, 172, 254, 0.28));
  border-color: var(--accent-cyan);
  box-shadow: 0 0 16px rgba(0, 242, 254, 0.25);
  transform: translateY(-1px);
}

html[data-theme="light-modern"] .btn-action-missions {
  background: rgba(79, 70, 229, 0.08);
  color: #4f46e5;
  border-color: rgba(79, 70, 229, 0.3);
}

html[data-theme="textbook"] .btn-action-missions {
  background: #fdfbf7;
  color: #1e3a8a;
  border: 2px solid #1e3a8a;
}

.badge-missions-pill {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: var(--radius-xl);
  background: var(--accent-cyan);
  color: #0b0f19;
  line-height: 1.2;
}

html[data-theme="light-modern"] .badge-missions-pill {
  background: #4f46e5;
  color: #ffffff;
}

html[data-theme="textbook"] .badge-missions-pill {
  background: #1e3a8a;
  color: #ffffff;
}

.missions-arrow {
  font-size: 0.8rem;
  transition: transform var(--transition-quick);
}

.btn-action-missions.active .missions-arrow {
  transform: rotate(180deg);
}

/* Wysuwany Panel Misji w Laboratorium */
.lab-missions-drawer {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.45s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.35s ease, margin 0.35s ease, padding 0.35s ease;
  margin-bottom: 0;
  padding: 0 1.25rem;
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  border: 1px solid transparent;
}

.lab-missions-drawer.open {
  max-height: 600px;
  opacity: 1;
  overflow-y: auto;
  margin-bottom: 0.5rem;
  padding: 1.25rem;
  border-color: var(--border-subtle);
  box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.25);
}

.drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 1rem;
}

.drawer-title-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.drawer-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.drawer-heading {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0 0 0.2rem 0;
  color: var(--text-primary);
}

.drawer-sub {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.4;
}

.btn-drawer-close {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  border-radius: var(--radius-xs);
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 700;
  transition: all var(--transition-quick);
  flex-shrink: 0;
}

.btn-drawer-close:hover {
  background: var(--border-subtle);
  color: var(--text-primary);
  border-color: var(--accent-primary);
}

.drawer-missions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 0.85rem;
}

.drawer-missions-grid .mission-card {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 1rem 1.15rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  transition: all var(--transition-quick);
}

.drawer-missions-grid .mission-card:hover {
  border-color: var(--accent-primary);
  background: var(--bg-card-solid);
  transform: translateY(-2px);
}

.drawer-missions-grid .mission-top {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.drawer-missions-grid .mission-top h4 {
  font-size: 0.92rem;
  margin: 0;
  font-weight: 700;
}

.drawer-missions-grid .mission-synopsis {
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.45;
  margin: 0;
}

.drawer-missions-grid .mission-action-hint {
  font-size: 0.75rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--accent-primary);
  border-radius: var(--radius-xs);
  padding: 0.5rem 0.65rem;
  color: var(--text-muted);
  line-height: 1.4;
  margin-top: auto;
}

.drawer-missions-grid .btn-mission-launch {
  width: 100%;
  padding: 0.5rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  background: var(--bg-surface);
  color: var(--accent-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  cursor: pointer;
  transition: all var(--transition-quick);
}

.drawer-missions-grid .btn-mission-launch:hover {
  background: var(--accent-primary);
  color: #0b0f19;
  border-color: var(--accent-primary);
  box-shadow: var(--accent-glow-subtle);
}

html[data-theme="light-modern"] .drawer-missions-grid .btn-mission-launch:hover {
  color: #ffffff;
}

html[data-theme="textbook"] .drawer-missions-grid .btn-mission-launch:hover {
  color: #ffffff;
}

/* Zakładki (Tabs) */
.lab-tabs-panel {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.tabs-nav-bar {
  display: flex;
  background: var(--bg-input);
  border-bottom: 1px solid var(--border-subtle);
  overflow-x: auto;
}

.tab-chip {
  flex: 1;
  padding: 0.75rem 0.9rem;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-quick);
  border-bottom: 2px solid transparent;
}

.tab-chip:hover {
  color: var(--text-primary);
}

.tab-chip.active {
  color: var(--accent-primary);
  background: var(--bg-surface);
  border-bottom-color: var(--accent-primary);
}

.tab-pane {
  display: none;
  padding: 1.15rem;
}

.tab-pane.active {
  display: block;
}

/* Suwaki (Tab 1) */
.sliders-matrix {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
}

@media (min-width: 600px) and (max-width: 1024px) {
  .sliders-matrix {
    grid-template-columns: repeat(2, 1fr);
  }
}

.slider-box {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.9rem;
}

.slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.4rem;
}

.slider-header label {
  font-size: 0.82rem;
  font-weight: 600;
}

.slider-badge {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent-primary);
  background: var(--bg-card-solid);
  padding: 2px 7px;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-subtle);
}

input[type="range"] {
  width: 100%;
  height: 5px;
  border-radius: 3px;
  background: var(--border-card);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
  margin: 0.45rem 0;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent-primary);
  cursor: pointer;
  box-shadow: 0 0 6px rgba(0, 0, 0, 0.4);
  transition: transform var(--transition-quick);
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.25);
}

.slider-limits {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* Presety */
.presets-shelf {
  margin-top: 1rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border-subtle);
}

.presets-caption {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.presets-flex {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.preset-pill {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 0.35rem 0.75rem;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-quick);
}

.preset-pill:hover {
  background: var(--border-subtle);
  border-color: var(--accent-primary);
  transform: translateY(-1px);
}

/* 6 Trybów Eksperymentów (Tab 2) */
.modes-grid-clean {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.65rem;
}

@media (min-width: 600px) and (max-width: 1024px) {
  .modes-grid-clean {
    grid-template-columns: repeat(2, 1fr);
  }
}

.mode-tile {
  text-align: left;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  cursor: pointer;
  transition: all var(--transition-quick);
}

.mode-tile:hover {
  background: var(--bg-surface);
  border-color: var(--accent-primary);
}

.mode-tile.active {
  background: var(--bg-surface);
  border-color: var(--accent-primary);
  box-shadow: var(--accent-glow-subtle);
}

.mode-tag-num {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent-cyan);
}

.mode-tile h4 {
  font-size: 0.92rem;
  margin: 0.2rem 0 0.3rem 0;
}

.mode-tile p {
  font-size: 0.78rem;
  margin: 0;
  line-height: 1.4;
}

/* Wizualizacja Checkboxy (Tab 3) */
.toggles-cluster {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.65rem;
}

@media (min-width: 600px) and (max-width: 1024px) {
  .toggles-cluster {
    grid-template-columns: repeat(2, 1fr);
  }
}

.switch-card {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem 0.9rem;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.switch-card input[type="checkbox"] {
  display: none;
}

.switch-track {
  position: relative;
  width: 38px;
  height: 22px;
  background: var(--border-card);
  border-radius: 11px;
  flex-shrink: 0;
  margin-top: 2px;
  transition: background var(--transition-quick);
}

.switch-track::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #ffffff;
  transition: transform var(--transition-quick);
}

.switch-card input[type="checkbox"]:checked + .switch-track {
  background: var(--accent-primary);
}

.switch-card input[type="checkbox"]:checked + .switch-track::after {
  transform: translateX(16px);
}

.switch-info strong {
  display: block;
  font-size: 0.85rem;
}

.switch-info span {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Telemetria (Liczniki cyfrowe) */
.telemetry-bar {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem;
}

.telemetry-grid-clean {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 0.65rem;
}

.metric-tile {
  background: var(--bg-metric);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  padding: 0.65rem 0.75rem;
  display: flex;
  flex-direction: column;
}

.m-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 0.2rem;
}

.m-val {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}

.highlight-cyan-tile .m-val { color: var(--accent-cyan); }
.highlight-amber-tile .m-val { color: var(--accent-amber); }

.m-sub {
  font-size: 0.68rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
}

/* Wykresy Live (Drugi Canvas) */
.chart-section {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem;
}

.chart-top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.chart-heading {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.chart-heading h4 {
  font-size: 0.92rem;
  margin: 0;
}

.chart-selector {
  display: flex;
  background: var(--bg-input);
  padding: 2px;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-subtle);
}

.btn-chart-seg {
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-xs);
  cursor: pointer;
  transition: all var(--transition-quick);
}

.btn-chart-seg.active {
  background: var(--bg-card-solid);
  color: var(--accent-primary);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.chart-canvas-wrapper {
  width: 100%;
  background: var(--bg-canvas);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  overflow: hidden;
}

#chart-canvas {
  display: block;
  width: 100%;
  height: 200px;
}

.chart-legend-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 0.65rem;
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.legend-badge {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 2px;
}

.dot-measured { background: var(--accent-cyan); }
.dot-theory { background: var(--accent-amber); border: 1px dashed #ffffff; }

/* --- 7. DEKODER WZORU & HISTORIA --- */

.subtitle-center {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.decoder-widget {
  margin: 1.5rem 0;
}

.decoder-chips-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 1rem;
}

.decoder-btn {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 0.5rem 1rem;
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-quick);
}

.decoder-btn:hover {
  border-color: var(--accent-primary);
  transform: translateY(-1px);
}

.decoder-btn.active {
  background: var(--accent-primary);
  color: #080c16;
  border-color: var(--accent-primary);
  box-shadow: var(--accent-glow-subtle);
  font-weight: 700;
}

html[data-theme="light-modern"] .decoder-btn.active,
html[data-theme="textbook"] .decoder-btn.active {
  color: #ffffff;
}

.symbol-tex {
  font-size: 1.05rem;
  font-family: var(--font-serif);
  font-weight: 700;
}

.symbol-name { font-size: 0.82rem; }
.symbol-pos {
  font-size: 0.68rem;
  background: rgba(0, 0, 0, 0.2);
  padding: 2px 6px;
  border-radius: 4px;
}

.decoder-detail-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
}

.decoder-detail-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.decoder-detail-top h4 {
  margin: 0;
  font-size: 1.1rem;
}

.decoder-tag {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent-cyan);
  background: var(--border-subtle);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-xs);
}

.historical-box {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin-top: 2rem;
}

.historical-avatar-box {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--accent-primary);
  margin-top: 0.1rem;
}

.historical-avatar-box .ph {
  font-size: 1.75rem;
}

.historical-body {
  flex: 1;
}

.historical-body h4 {
  margin-top: 0 !important;
  margin-bottom: 0.6rem;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}

.historical-body p {
  margin-bottom: 0;
  line-height: 1.65;
  color: var(--text-secondary);
}

/* --- 8. MISJE BADAWCZE --- */

.missions-collection {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 1.25rem;
}

.mission-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-left: 4px solid var(--accent-indigo);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  transition: all var(--transition-quick);
}

.mission-card:hover {
  border-color: var(--accent-primary);
  transform: translateX(3px);
}

.mission-top {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.4rem;
}

.mission-badge-pill {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent-indigo);
  background: var(--border-subtle);
  padding: 2px 7px;
  border-radius: var(--radius-xs);
}

.mission-card h4 {
  margin: 0;
  font-size: 1.05rem;
}

.mission-synopsis {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 0.65rem;
}

.mission-action-hint {
  background: var(--bg-metric);
  border: 1px dashed var(--border-card);
  border-radius: var(--radius-xs);
  padding: 0.6rem 0.85rem;
  font-size: 0.82rem;
  color: var(--text-primary);
  margin-bottom: 0.85rem;
}

.btn-mission-launch {
  width: 100%;
  background: transparent;
  color: var(--accent-primary);
  border-color: var(--accent-primary);
}

.btn-mission-launch:hover {
  background: var(--accent-primary);
  color: #080c16;
  box-shadow: var(--accent-glow-subtle);
}

html[data-theme="light-modern"] .btn-mission-launch:hover,
html[data-theme="textbook"] .btn-mission-launch:hover {
  color: #ffffff;
}

/* --- 10. STOPKA --- */

.app-footer {
  margin-top: 2rem;
  padding: 2.5rem 0 1.5rem 0;
  border-top: 1px solid var(--border-subtle);
  text-align: center;
}

.footer-title {
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.footer-author {
  font-size: 0.95rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.45rem;
  line-height: 1.5;
}

.footer-author strong {
  color: var(--text-primary);
}

.footer-sep {
  color: var(--text-muted);
  opacity: 0.6;
}

.footer-github-link {
  color: var(--accent-cyan);
  text-decoration: none;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  line-height: 1;
  transition: all var(--transition-quick);
}

.footer-github-icon {
  display: block;
  flex-shrink: 0;
}

.footer-github-link:hover {
  color: var(--accent-primary);
  text-decoration: underline;
}

html[data-theme="light-modern"] .footer-github-link {
  color: #4f46e5;
}

html[data-theme="textbook"] .footer-github-link {
  color: #1e3a8a;
}

/* --- 11. RESPONSYWNOŚĆ MOBILNA (RWD) --- */

@media (max-width: 900px) {
  .nav-links { display: none; }
  .hero-headline { font-size: 1.8rem; }
  .card { padding: 1.5rem; }
}

@media (max-width: 600px) {
  :root { --header-height: 58px; }
  .header-inner { padding: 0 1rem; }
  .brand-badge { display: none; }
  .theme-btn .theme-label { display: none; }
  .theme-btn { padding: 0.42rem 0.55rem; }
  .hero-headline { font-size: 1.5rem; }
  .hero-lead { font-size: 0.98rem; }
  .telemetry-grid-clean { grid-template-columns: repeat(2, 1fr); }
  .sim-toolbar .btn { flex: 1 1 45%; }
}