/* ==========================================================================
   JM LABS — Under Construction / Coming Soon
   Apple HIG & Studio Craft Design System
   ========================================================================== */

/* ── 1. Design Tokens & Custom Properties ── */
:root {
  /* Surface & Background */
  --bg-canvas: #050608;
  --bg-surface-elevated: rgba(15, 19, 32, 0.68);
  --bg-surface-hover: rgba(26, 32, 54, 0.78);
  --bg-surface-active: rgba(10, 13, 22, 0.88);
  --bg-modal-backdrop: rgba(3, 4, 7, 0.82);

  /* Typography & Text */
  --color-text-primary: #f5f5f7;    /* 17.6:1 contrast against canvas (WCAG AAA) */
  --color-text-secondary: #9ca3af;  /* 6.2:1 contrast against canvas (WCAG AAA) */
  --color-text-muted: #6b7280;      /* 4.5:1 contrast against canvas (WCAG AA) */
  --color-text-highlight: #ffffff;

  /* Accent & Signals */
  --accent-cyan: #38bdf8;
  --accent-purple: #7e53fc;
  --accent-blue: #2563eb;
  --signal-active: #34d399;         /* Live pulse emerald */
  --signal-active-glow: rgba(52, 211, 153, 0.4);

  /* Borders & Highlights */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-specular: rgba(255, 255, 255, 0.16);
  --border-focus: #38bdf8;

  /* Shadows & Depth */
  --shadow-glass: 0 24px 60px -12px rgba(0, 0, 0, 0.75), 0 0 1px 1px rgba(255, 255, 255, 0.08) inset;
  --shadow-button-glow: 0 0 32px rgba(56, 189, 248, 0.22);
  --shadow-modal: 0 32px 80px -16px rgba(0, 0, 0, 0.9), 0 0 1px 1px rgba(255, 255, 255, 0.12) inset;

  /* Font Stacks */
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", system-ui, -apple-system-ui-serif, "Inter", "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  /* Fluid Spacing & Radius */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  --transition-smooth: 240ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* ── 2. Universal Reset & Baseline ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  background-color: var(--bg-canvas);
  color: var(--color-text-primary);
  color-scheme: dark;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "cv02", "cv03", "cv04", "cv11";
  scroll-behavior: smooth;
  height: 100%;
}

body {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background-color: var(--bg-canvas);
  position: relative;
  overflow-x: hidden;
  padding: max(24px, env(safe-area-inset-top)) max(20px, env(safe-area-inset-right)) max(24px, env(safe-area-inset-bottom)) max(20px, env(safe-area-inset-left));
}

::selection {
  background: rgba(56, 189, 248, 0.25);
  color: #ffffff;
}

/* ── 3. Atmospheric Visual Layer (Celestial Arcs & Ambient Depth) ── */
.ambient-scene {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
  contain: strict;
}

/* Dark celestial core sphere */
.celestial-sphere {
  position: absolute;
  top: -15vh;
  left: 50%;
  transform: translateX(-50%);
  width: min(1000px, 140vw);
  height: min(1000px, 140vw);
  border-radius: 50%;
  background: radial-gradient(circle at 50% 25%, rgba(14, 18, 30, 0.95) 0%, rgba(8, 10, 18, 0.98) 55%, var(--bg-canvas) 85%);
  box-shadow:
    inset 0 2px 30px rgba(56, 189, 248, 0.08),
    inset 0 -40px 100px rgba(0, 0, 0, 0.98);
  border: 1px solid rgba(56, 189, 248, 0.06);
  opacity: 0.95;
}

/* Diffuse color glow behind sphere */
.ambient-bloom {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: min(850px, 120vw);
  height: 480px;
  background: radial-gradient(ellipse at 50% 10%, rgba(56, 189, 248, 0.16) 0%, rgba(126, 83, 252, 0.1) 45%, transparent 75%);
  filter: blur(80px);
  animation: ambient-pulse 8s ease-in-out infinite alternate;
}

/* High-precision Horizon Arc SVG */
.horizon-arc-svg {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: min(1100px, 150vw);
  height: 520px;
  pointer-events: none;
  filter: drop-shadow(0 0 16px rgba(56, 189, 248, 0.28));
}

@keyframes ambient-pulse {
  0% {
    opacity: 0.7;
    transform: translateX(-50%) scale(0.98);
  }
  100% {
    opacity: 1;
    transform: translateX(-50%) scale(1.02);
  }
}

/* ── 4. Main Page Container & Layout ── */
.page-wrapper {
  position: relative;
  z-index: 1;
  max-width: 980px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  min-height: calc(100vh - 48px);
  justify-content: space-between;
}

/* ── 5. Header / Brand Top Bar ── */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0 24px 0;
  position: relative;
  z-index: 2;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--color-text-primary);
  border-radius: var(--radius-sm);
  padding: 4px;
  transition: opacity var(--transition-smooth);
}

.brand-link:hover {
  opacity: 0.85;
}

.brand-monogram-svg {
  display: block;
  width: 48px;
  height: 22px;
}

.brand-wordmark {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--color-text-primary);
}

/* Status Pill (Apple HIG Badge) */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  padding: 6px 14px;
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--color-text-secondary);
  letter-spacing: 0.04em;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
}

.status-dot {
  width: 6.5px;
  height: 6.5px;
  border-radius: 50%;
  background-color: var(--signal-active);
  position: relative;
}

.status-dot::after {
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background-color: var(--signal-active);
  opacity: 0.6;
  animation: pulse-ring 2.4s cubic-bezier(0.24, 0, 0.38, 1) infinite;
}

@keyframes pulse-ring {
  0% {
    transform: scale(0.9);
    opacity: 0.8;
  }
  60%, 100% {
    transform: scale(2.4);
    opacity: 0;
  }
}

/* ── 6. Main Content Area (Apple Keynote Craft) ── */
.main-stage {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 16px 48px 16px;
  position: relative;
  z-index: 2;
}

/* Large Center Monogram with Specular Shimmer */
.hero-emblem {
  position: relative;
  margin-bottom: 32px;
  display: inline-flex;
  justify-content: center;
  align-items: center;
}

.hero-emblem::before {
  content: "";
  position: absolute;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(126, 83, 252, 0.28) 0%, rgba(56, 189, 248, 0.14) 50%, transparent 70%);
  filter: blur(30px);
  z-index: -1;
}

.hero-monogram-svg {
  width: min(150px, 35vw);
  height: auto;
  filter: drop-shadow(0 12px 24px rgba(0, 0, 0, 0.65));
}

/* Category Eyebrow */
.eyebrow-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: 18px;
}

.eyebrow-line {
  width: 18px;
  height: 1px;
  background-color: var(--accent-cyan);
  opacity: 0.6;
}

/* Display Headline: Titanium gradient, optical leading */
.headline {
  font-size: clamp(2.25rem, 6vw, 3.85rem);
  font-weight: 350;
  line-height: 1.14;
  letter-spacing: -0.038em;
  max-width: 780px;
  margin: 0 auto 20px auto;
  color: #ffffff;
}

.headline-gradient {
  background: linear-gradient(180deg, #ffffff 30%, #b8c4d6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline;
}

/* Subtitle / Lead Paragraph */
.lead-text {
  font-size: clamp(1.0625rem, 2.2vw, 1.25rem);
  font-weight: 400;
  line-height: 1.62;
  color: var(--color-text-secondary);
  max-width: 580px;
  margin: 0 auto 40px auto;
}

/* ── 7. Liquid Glass Functional Control HUD ── */
.glass-hud-card {
  width: 100%;
  max-width: 580px;
  background: var(--bg-surface-elevated);
  backdrop-filter: blur(28px) saturate(180%);
  -webkit-backdrop-filter: blur(28px) saturate(180%);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: var(--shadow-glass);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-smooth), border-color var(--transition-smooth), box-shadow var(--transition-smooth);
}

/* Subtle glass specular light sheen across card edge */
.glass-hud-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.28) 35%, rgba(56, 189, 248, 0.4) 65%, transparent 100%);
  pointer-events: none;
}

.hud-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.hud-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  gap: 12px;
}

.hud-heading {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--color-text-primary);
}

.hud-telemetry {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent-cyan);
  letter-spacing: 0.05em;
}

/* Action Button Group */
.hud-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

/* Primary Action Button (Apple Prominent Style) */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background-color: #ffffff;
  color: #050608;
  font-size: 14px;
  font-weight: 600;
  padding: 13px 24px;
  border-radius: var(--radius-full);
  text-decoration: none;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(255, 255, 255, 0.12);
  transition: all var(--transition-smooth);
  min-height: 46px;
  min-width: 170px;
}

.btn-primary:hover {
  background-color: #f0f0f4;
  box-shadow: 0 0 28px rgba(255, 255, 255, 0.35);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-arrow {
  font-size: 13px;
  transition: transform var(--transition-smooth);
}

.btn-primary:hover .btn-arrow {
  transform: translateX(3px);
}

/* Secondary Action Button (Frosted Liquid Glass button) */
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--color-text-primary);
  font-size: 14px;
  font-weight: 500;
  padding: 13px 22px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-smooth);
  min-height: 46px;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--border-specular);
  transform: translateY(-1px);
}

.btn-secondary:active {
  transform: scale(0.98);
}

/* Copy notification toast */
.copy-feedback {
  position: absolute;
  top: 10px;
  right: 14px;
  background: rgba(16, 185, 129, 0.18);
  border: 1px solid rgba(16, 185, 129, 0.35);
  color: #34d399;
  font-size: 11px;
  font-family: var(--font-mono);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  opacity: 0;
  transform: translateY(-4px);
  pointer-events: none;
  transition: all var(--transition-smooth);
}

.copy-feedback.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Technical Principles Micro-List */
.principles-row {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px 20px;
  padding-top: 18px;
  margin-top: 6px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--color-text-muted);
}

.principle-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.p-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
}

.p-dot-cyan { background-color: var(--accent-cyan); }
.p-dot-purple { background-color: var(--accent-purple); }
.p-dot-emerald { background-color: var(--signal-active); }

/* ── 8. Site Footer & Legal Links ── */
.site-footer {
  display: flex;
  flex-direction: column;
  sm-flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 0 12px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  position: relative;
  z-index: 2;
  font-size: 12px;
  color: var(--color-text-muted);
}

@media (min-width: 640px) {
  .site-footer {
    flex-direction: row;
  }
}

.footer-copy {
  letter-spacing: -0.01em;
}

.footer-nav {
  display: flex;
  align-items: center;
  gap: 20px;
  list-style: none;
}

.footer-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  background: none;
  border: none;
  padding: 6px 2px;
  font-size: 12px;
  font-family: inherit;
  cursor: pointer;
  transition: color var(--transition-smooth);
}

.footer-link:hover {
  color: var(--color-text-primary);
}

.footer-link-mail {
  font-family: var(--font-mono);
  font-size: 11.5px;
}

/* ── 9. Accessible Modal / Dialog (Impressum & Datenschutz) ── */
dialog.legal-modal {
  margin: auto;
  background: var(--bg-surface-active);
  color: var(--color-text-primary);
  border: 1px solid var(--border-specular);
  border-radius: var(--radius-lg);
  max-width: 640px;
  width: calc(100% - 32px);
  max-height: 85vh;
  box-shadow: var(--shadow-modal);
  padding: 0;
  overflow: hidden;
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
}

dialog.legal-modal::backdrop {
  background-color: var(--bg-modal-backdrop);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(255, 255, 255, 0.02);
}

.modal-title {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--color-text-primary);
}

.modal-close-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: none;
  color: var(--color-text-secondary);
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-smooth), color var(--transition-smooth);
}

.modal-close-btn:hover {
  background: rgba(255, 255, 255, 0.16);
  color: #ffffff;
}

.modal-body {
  padding: 24px;
  overflow-y: auto;
  max-height: calc(85vh - 75px);
  font-size: 14px;
  line-height: 1.68;
  color: var(--color-text-secondary);
}

.modal-body h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-primary);
  margin: 18px 0 8px 0;
}

.modal-body h3:first-child {
  margin-top: 0;
}

.modal-body p {
  margin-bottom: 14px;
}

.modal-body code,
.modal-body pre {
  font-family: var(--font-mono);
  font-size: 12px;
  background: rgba(0, 0, 0, 0.45);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--accent-cyan);
}

/* ── 10. Focus Rings & Keyboard Navigation (Apple HIG Accessibility) ── */
:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 3px;
  border-radius: 4px;
}

button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 3px;
}

/* ── 11. Accessibility Preferences & Media Queries ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .ambient-bloom {
    animation: none;
  }
  .status-dot::after {
    animation: none;
  }
}

@media (forced-colors: active) {
  .glass-hud-card {
    border: 2px solid CanvasText;
  }
  .status-pill {
    border: 1px solid CanvasText;
  }
}

@media (max-width: 540px) {
  .headline {
    font-size: 2.15rem;
  }
  .glass-hud-card {
    padding: 22px 18px;
  }
  .hud-actions {
    flex-direction: column;
    width: 100%;
  }
  .btn-primary, .btn-secondary {
    width: 100%;
  }
  .principles-row {
    flex-direction: column;
    gap: 8px;
    align-items: center;
  }
}