/* ==========================================================================
   ORXATA 386 - MS-DOS / BIOS / Norton Commander Retro Stylesheet
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=VT323&family=JetBrains+Mono:wght@400;700&display=swap');

:root {
  /* DOS Color Palette */
  --dos-black: #000000;
  --dos-blue: #0000aa;
  --dos-blue-light: #5555ff;
  --dos-green: #00aa00;
  --dos-green-light: #55ff55;
  --dos-cyan: #00aaaa;
  --dos-cyan-light: #55ffff;
  --dos-red: #aa0000;
  --dos-red-light: #ff5555;
  --dos-magenta: #aa00aa;
  --dos-magenta-light: #ff55ff;
  --dos-brown: #aa5500;
  --dos-yellow: #ffff55;
  --dos-white: #ffffff;
  --dos-gray: #aaaaaa;
  --dos-gray-dark: #555555;

  /* Orxata Special DOS Amber */
  --orxata-amber: #ffaa00;
  --orxata-amber-light: #ffff77;

  /* Typography */
  --font-dos: 'VT323', 'JetBrains Mono', 'Courier New', Courier, monospace;
}

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

html {
  background-color: var(--dos-black);
  color: var(--dos-gray);
  font-family: var(--font-dos);
  font-size: 20px;
  line-height: 1.35;
  letter-spacing: 0.05em;
  -webkit-font-smoothing: none;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--dos-black);
  background-image: 
    linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%),
    linear-gradient(90deg, rgba(255, 0, 0, 0.03), rgba(0, 255, 0, 0.01), rgba(0, 0, 255, 0.03));
  background-size: 100% 3px, 6px 100%;
}

a {
  color: var(--dos-cyan-light);
  text-decoration: none;
}

a:hover {
  background-color: var(--dos-cyan-light);
  color: var(--dos-black);
}

/* Screen Wrapper */
.dos-container {
  max-width: 1080px;
  width: 100%;
  margin: 0 auto;
  padding: 0.75rem;
}

/* ==========================================================================
   TOP SYSTEM MENU BAR
   ========================================================================== */
.dos-top-bar {
  background-color: var(--dos-gray);
  color: var(--dos-black);
  padding: 0.35rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 700;
  font-size: 1.15rem;
  border-bottom: 2px solid var(--dos-black);
}

.dos-top-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--dos-black);
}

.dos-top-brand img {
  height: 28px;
  width: auto;
  vertical-align: middle;
  background: #ffffff;
  padding: 3px 6px;
  border: 1px solid var(--dos-black);
  border-radius: 3px;
  box-shadow: 2px 2px 0px var(--dos-black);
}

.dos-menu-links {
  display: flex;
  gap: 0.85rem;
  list-style: none;
  flex-wrap: wrap;
}

.dos-menu-item a {
  color: var(--dos-black);
  padding: 0.15rem 0.5rem;
}

.dos-menu-item a:hover, .dos-menu-item.active a {
  background-color: var(--dos-black);
  color: var(--dos-yellow);
}

/* ==========================================================================
   DOS WINDOW / BOX (TURBO / EDIT / NC STYLE)
   ========================================================================== */
.dos-window {
  background-color: var(--dos-blue);
  color: var(--dos-white);
  border: 3px double var(--dos-white);
  box-shadow: 12px 12px 0px var(--dos-black);
  margin: 1.5rem 0;
  position: relative;
}

.dos-window-header {
  background-color: var(--dos-cyan);
  color: var(--dos-black);
  padding: 0.25rem 0.75rem;
  font-weight: 700;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 2px solid var(--dos-white);
}

.dos-window-title {
  font-size: 1.2rem;
  letter-spacing: 0.08em;
}

.dos-window-ctrls {
  font-weight: 900;
}

.dos-window-body {
  padding: 1.5rem;
}

/* Prompt Banner */
.dos-prompt-box {
  background-color: var(--dos-black);
  color: var(--dos-green-light);
  padding: 1rem;
  border: 2px solid var(--dos-green-light);
  margin-bottom: 1.5rem;
  font-size: 1.15rem;
}

.cursor-blink {
  display: inline-block;
  width: 10px;
  height: 18px;
  background-color: var(--dos-green-light);
  vertical-align: middle;
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* ==========================================================================
   HERO / BANNER DOS
   ========================================================================== */
.dos-hero-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.5rem;
  align-items: center;
  margin-bottom: 1.5rem;
}

.dos-hero-logo {
  border: 3px solid var(--dos-yellow);
  padding: 12px 16px;
  background: #ffffff;
  box-shadow: 8px 8px 0px var(--dos-black);
  max-width: 200px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.dos-hero-logo img {
  max-width: 100%;
  height: auto;
  display: block;
}

.dos-btn {
  display: inline-block;
  background-color: var(--dos-gray);
  color: var(--dos-black);
  padding: 0.4rem 1rem;
  font-weight: 700;
  font-size: 1.1rem;
  border: 2px solid var(--dos-white);
  box-shadow: 4px 4px 0px var(--dos-black);
  margin-right: 0.75rem;
  margin-top: 0.5rem;
  cursor: pointer;
}

.dos-btn:hover {
  background-color: var(--dos-yellow);
  color: var(--dos-black);
  box-shadow: 2px 2px 0px var(--dos-black);
  transform: translate(2px, 2px);
}

.dos-btn-primary {
  background-color: var(--dos-cyan-light);
}

/* ==========================================================================
   NORTON COMMANDER 2-COLUMN PANELS
   ========================================================================== */
.nc-panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.nc-panel {
  background-color: var(--dos-blue);
  border: 2px solid var(--dos-cyan-light);
  box-shadow: 6px 6px 0px var(--dos-black);
}

.nc-panel-header {
  background-color: var(--dos-cyan-light);
  color: var(--dos-black);
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  text-align: center;
  font-size: 1.1rem;
}

.nc-panel-body {
  padding: 0.75rem;
}

.nc-file-list {
  list-style: none;
}

.nc-file-item {
  padding: 0.4rem 0.5rem;
  border-bottom: 1px dotted var(--dos-gray-dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nc-file-item:hover {
  background-color: var(--dos-cyan-light);
  color: var(--dos-black);
}

.nc-file-item:hover a {
  color: var(--dos-black);
  background: none;
}

.nc-file-item:hover .dos-badge {
  background-color: var(--dos-black);
  color: var(--dos-yellow);
}

/* ==========================================================================
   BADGES & STATUS
   ========================================================================== */
.dos-badge {
  font-size: 0.85rem;
  font-weight: 700;
  padding: 0.1rem 0.4rem;
  border: 1px solid currentColor;
}

.dos-badge.active {
  color: var(--dos-green-light);
  border-color: var(--dos-green-light);
}

.dos-badge.inactive {
  color: var(--dos-gray);
  border-color: var(--dos-gray);
}

.dos-badge.category {
  color: var(--dos-yellow);
  border-color: var(--dos-yellow);
}

/* ==========================================================================
   MARKDOWN CONTENT IN DOS VIEW
   ========================================================================== */
.dos-content {
  color: var(--dos-white);
  font-size: 1.15rem;
  line-height: 1.45;
}

.dos-content h1 {
  font-size: 1.8rem;
  color: var(--dos-yellow);
  border-bottom: 2px dashed var(--dos-white);
  padding-bottom: 0.4rem;
  margin: 1.25rem 0 1rem 0;
}

.dos-content h2 {
  font-size: 1.45rem;
  color: var(--dos-cyan-light);
  margin: 1.25rem 0 0.5rem 0;
}

.dos-content h3 {
  font-size: 1.25rem;
  color: var(--dos-green-light);
  margin: 1rem 0 0.4rem 0;
}

.dos-content p {
  margin-bottom: 1rem;
}

.dos-content ul, .dos-content ol {
  margin: 0.75rem 0 1.25rem 2rem;
}

.dos-content li {
  margin-bottom: 0.35rem;
}

.dos-content pre {
  background-color: var(--dos-black);
  color: var(--dos-green-light);
  border: 2px solid var(--dos-gray-dark);
  padding: 1rem;
  overflow-x: auto;
  margin: 1.25rem 0;
  font-size: 1rem;
}

.dos-content code {
  background-color: var(--dos-black);
  color: var(--dos-yellow);
  padding: 0.1rem 0.35rem;
  border: 1px solid var(--dos-gray-dark);
}

.dos-content pre code {
  border: none;
  padding: 0;
  background: none;
  color: inherit;
}

.dos-content blockquote {
  border-left: 4px solid var(--dos-yellow);
  background-color: rgba(255, 255, 85, 0.1);
  padding: 0.5rem 1rem;
  margin: 1rem 0;
  color: var(--dos-yellow);
}

.dos-content hr {
  border: none;
  border-top: 1px dashed var(--dos-white);
  margin: 1.5rem 0;
}

/* ==========================================================================
   BOTTOM NORTON FUNCTION KEYS (F1-F10)
   ========================================================================== */
.dos-bottom-bar {
  margin-top: auto;
  background-color: var(--dos-black);
  border-top: 2px solid var(--dos-gray);
  padding: 0.4rem 0;
}

.fkey-grid {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: 2px;
  list-style: none;
}

.fkey-item {
  background-color: var(--dos-gray);
  color: var(--dos-black);
  font-size: 0.85rem;
  font-weight: 700;
  text-align: center;
  padding: 0.2rem 0;
}

.fkey-item span.fnum {
  background-color: var(--dos-black);
  color: var(--dos-white);
  padding: 0 0.25rem;
  margin-right: 2px;
}

.fkey-item a {
  color: var(--dos-black);
  display: block;
}

.fkey-item a:hover {
  background-color: var(--dos-yellow);
  color: var(--dos-black);
}

/* Responsive */
@media (max-width: 768px) {
  html {
    font-size: 17px;
  }
  .dos-hero-grid {
    grid-template-columns: 1fr;
  }
  .nc-panels {
    grid-template-columns: 1fr;
  }
  .fkey-grid {
    grid-template-columns: repeat(5, 1fr);
    row-gap: 4px;
  }
  .dos-window {
    box-shadow: 6px 6px 0px var(--dos-black);
  }
}