:root {
  --पृष्ठभूमि: #0b0f19;
  --फलक-पृष्ठभूमि: rgba(17, 24, 39, 0.78);
  --फलक-सीमा: rgba(99, 102, 241, 0.25);
  --वर्ण-प्राथमिक: #6366f1;
  --वर्ण-द्वितीयक: #06b6d4;
  --वर्ण-आभा: #ec4899;
  --वर्ण-सफलता: #10b981;
  --वर्ण-चेतावनी: #f59e0b;
  --वर्ण-संकट: #ef4444;
  --वर्ण-पाठ: #f8fafc;
  --वर्ण-उपपाठ: #94a3b8;
  --वर्ण-कांच: rgba(255, 255, 255, 0.04);
  --छाया-द्युति: 0 0 25px rgba(99, 102, 241, 0.35);
  --संक्रमण-काल: 0.25s ease;
}

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

body {
  background: radial-gradient(circle at 15% 20%, #1e1b4b 0%, var(--पृष्ठभूमि) 50%, #030712 100%);
  color: var(--वर्ण-पाठ);
  font-family: 'Outfit', sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* शीर्षपट्टिका (Header) */
.शीर्षपट्टिका {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 2.5rem;
  background: rgba(11, 15, 25, 0.85);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--फलक-सीमा);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
  position: sticky;
  top: 0;
  z-index: 100;
}

.शीर्षपट्टिका-शीर्षक {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.प्रतीक-चिह्न {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--वर्ण-प्राथमिक), var(--वर्ण-द्वितीयक));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--छाया-द्युति);
  font-weight: 800;
  font-size: 1.2rem;
  color: #fff;
}

h1 {
  font-size: 1.45rem;
  font-weight: 700;
  background: linear-gradient(90deg, #ffffff, #cbd5e1, #818cf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 0.5px;
}

.उपशीर्षक {
  font-size: 0.82rem;
  color: var(--वर्ण-उपपाठ);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.नियन्त्रण-पट्टिका {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.संकेतक-चिप {
  padding: 0.4rem 0.9rem;
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.35);
  border-radius: 20px;
  font-family: 'Fira Code', monospace;
  font-size: 0.85rem;
  color: #a5b4fc;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.बिन्दु-द्युति {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--वर्ण-सफलता);
  box-shadow: 0 0 10px var(--वर्ण-सफलता);
  animation: स्पन्दन 1.8s infinite;
}

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

/* मुख्य विन्यास (Main Grid Layout) */
.मुख्य-मंच {
  flex: 1;
  display: grid;
  grid-template-columns: 340px 1fr 340px;
  gap: 1.5rem;
  padding: 1.5rem 2.5rem;
  max-width: 1750px;
  margin: 0 auto;
  width: 100%;
}

@media (max-width: 1200px) {
  .मुख्य-मंच {
    grid-template-columns: 1fr;
  }
}

/* फलक (Glassmorphism Cards) */
.फलक {
  background: var(--फलक-पृष्ठभूमि);
  border: 1px solid var(--फलक-सीमा);
  border-radius: 18px;
  padding: 1.3rem;
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.37);
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  position: relative;
  transition: var(--संक्रमण-काल);
}

.फलक:hover {
  border-color: rgba(99, 102, 241, 0.45);
}

.फलक-शीर्ष {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: 0.75rem;
}

.फलक-शीर्षक {
  font-size: 1.1rem;
  font-weight: 600;
  color: #e2e8f0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.फलक-शीर्षक-संकेत {
  font-size: 0.75rem;
  color: var(--वर्ण-उपपाठ);
  font-family: 'Fira Code', monospace;
  background: var(--वर्ण-कांच);
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
}

/* बटन शैलियाँ */
.क्रिया-कुञ्जी {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.25), rgba(6, 182, 212, 0.2));
  border: 1px solid rgba(99, 102, 241, 0.4);
  color: #fff;
  padding: 0.6rem 1.1rem;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.2s ease;
  font-family: 'Outfit', sans-serif;
}

.क्रिया-कुञ्जी:hover {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.5), rgba(6, 182, 212, 0.4));
  border-color: var(--वर्ण-प्राथमिक);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
}

.क्रिया-कुञ्जी:active {
  transform: translateY(1px);
}

.क्रिया-कुञ्जी-प्राथमिक {
  background: linear-gradient(135deg, #6366f1, #4f46e5);
  border-color: #818cf8;
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.4);
}

.क्रिया-कुञ्जी-प्राथमिक:hover {
  background: linear-gradient(135deg, #4f46e5, #4338ca);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.6);
}

.क्रिया-कुञ्जी-संकट {
  background: rgba(239, 68, 68, 0.15);
  border-color: rgba(239, 68, 68, 0.35);
  color: #fca5a5;
}

.क्रिया-कुञ्जी-संकट:hover {
  background: rgba(239, 68, 68, 0.3);
  border-color: var(--वर्ण-संकट);
  box-shadow: 0 4px 14px rgba(239, 68, 68, 0.3);
}

.बटन-समूह {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

/* निर्देश स्मृति (Instruction Memory) */
.स्मृति-सूची {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  overflow-y: auto;
  max-height: 480px;
  padding-right: 4px;
}

.स्मृति-सूची::-webkit-scrollbar {
  width: 5px;
}
.स्मृति-सूची::-webkit-scrollbar-thumb {
  background: rgba(99, 102, 241, 0.3);
  border-radius: 4px;
}

.स्मृति-प्रविष्टि {
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 10px;
  padding: 0.75rem 0.9rem;
  display: grid;
  grid-template-columns: 36px 1fr 64px auto;
  align-items: center;
  gap: 0.6rem;
  font-family: 'Fira Code', monospace;
  font-size: 0.85rem;
  transition: all 0.25s ease;
  cursor: pointer;
}

.स्मृति-प्रविष्टि:hover {
  background: rgba(30, 41, 59, 0.7);
  border-color: rgba(99, 102, 241, 0.3);
}

.स्मृति-प्रविष्टि.सक्रिय-निर्देश {
  background: linear-gradient(90deg, rgba(99, 102, 241, 0.25), rgba(6, 182, 212, 0.18));
  border: 1px solid var(--वर्ण-प्राथमिक);
  box-shadow: 0 0 16px rgba(99, 102, 241, 0.4);
  transform: translateX(4px);
}

.स्मृति-पता {
  color: var(--वर्ण-उपपाठ);
  font-weight: 700;
}

.स्मृति-कूट {
  color: #38bdf8;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.स्मृति-द्विआधारी {
  font-size: 0.74rem;
  color: #64748b;
  letter-spacing: 0.5px;
}

.निर्देश-संपादक {
  background: rgba(15, 23, 42, 0.7);
  border: 1px dashed rgba(99, 102, 241, 0.3);
  border-radius: 12px;
  padding: 0.9rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.निवेश-पंक्ति {
  display: flex;
  gap: 0.5rem;
}

select, input[type="text"], input[type="number"], textarea {
  background: rgba(11, 15, 25, 0.9);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: 8px;
  color: #f1f5f9;
  padding: 0.55rem 0.75rem;
  font-family: 'Fira Code', monospace;
  font-size: 0.85rem;
  outline: none;
  transition: var(--संक्रमण-काल);
  flex: 1;
}

select:focus, input:focus, textarea:focus {
  border-color: var(--वर्ण-प्राथमिक);
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.35);
}

/* केन्द्रीय प्रक्रमक मंच (Central Processor & ALU) */
.केन्द्र-मंच {
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}

/* वास्तुकला आरेख (Architecture Dataflow Visualization) */
.वास्तुकला-पटल {
  background: radial-gradient(circle at 50% 50%, rgba(30, 41, 59, 0.5) 0%, rgba(15, 23, 42, 0.85) 100%);
  border: 1px solid var(--फलक-सीमा);
  border-radius: 18px;
  padding: 1.4rem;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.4rem;
  overflow: hidden;
}

/* ALU V-Shaped Block */
.गणना-यन्त्र-आवरण {
  position: relative;
  width: 100%;
  max-width: 440px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.गणना-यन्त्र-पिण्ड {
  width: 100%;
  height: 160px;
  background: linear-gradient(180deg, #1e1b4b, #111827);
  clip-path: polygon(0 0, 42% 0, 50% 38%, 58% 0, 100% 0, 80% 100%, 20% 100%);
  border: 2px solid #818cf8;
  box-shadow: var(--छाया-द्युति);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: all 0.3s ease;
  cursor: default;
}

.गणना-यन्त्र-पिण्ड.सक्रिय-संक्रिया {
  background: linear-gradient(180deg, #312e81, #1e1b4b);
  border-color: #38bdf8;
  box-shadow: 0 0 30px rgba(56, 189, 248, 0.55);
}

.गणना-यन्त्र-शीर्षक {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 2.5px;
  color: #e0e7ff;
  margin-top: 1.6rem;
  text-shadow: 0 0 10px rgba(99, 102, 241, 0.8);
}

.गणना-यन्त्र-संक्रिया-पाठ {
  font-family: 'Fira Code', monospace;
  font-size: 1.15rem;
  font-weight: 700;
  color: #38bdf8;
  margin-top: 0.3rem;
}

.गणना-निवेश-संकेतक {
  position: absolute;
  top: -24px;
  display: flex;
  width: 86%;
  justify-content: space-between;
  font-family: 'Fira Code', monospace;
  font-size: 0.82rem;
  font-weight: 700;
}

.गणना-निवेश-क {
  color: #ec4899;
  background: rgba(236, 72, 153, 0.15);
  border: 1px solid rgba(236, 72, 153, 0.4);
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
}

.गणना-निवेश-ख {
  color: #06b6d4;
  background: rgba(6, 182, 212, 0.15);
  border: 1px solid rgba(6, 182, 212, 0.4);
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
}

.गणना-निर्गम-संकेतक {
  position: absolute;
  bottom: -32px;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.4);
  color: #34d399;
  padding: 0.3rem 0.9rem;
  border-radius: 8px;
  font-family: 'Fira Code', monospace;
  font-weight: 700;
  font-size: 0.9rem;
  box-shadow: 0 0 15px rgba(16, 185, 129, 0.2);
}

/* संक्रिया चयन ग्रिड (ALU Operations Buttons) */
.संक्रिया-ग्रिड {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem;
  width: 100%;
}

.संक्रिया-कुञ्जी {
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  padding: 0.6rem 0.4rem;
  text-align: center;
  font-family: 'Fira Code', monospace;
  font-weight: 600;
  font-size: 0.82rem;
  color: #cbd5e1;
  cursor: pointer;
  transition: all 0.2s ease;
}

.संक्रिया-कुञ्जी:hover {
  background: rgba(99, 102, 241, 0.18);
  border-color: rgba(99, 102, 241, 0.4);
  color: #fff;
}

.संक्रिया-कुञ्जी.सक्रिय {
  background: linear-gradient(135deg, var(--वर्ण-प्राथमिक), #4338ca);
  border-color: #a5b4fc;
  color: #fff;
  box-shadow: 0 0 12px rgba(99, 102, 241, 0.5);
}

/* ध्वजा पट्टिका (Flags) */
.ध्वजा-पट्टिका {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  width: 100%;
}

.ध्वजा-कोष्ठक {
  background: rgba(11, 15, 25, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  padding: 0.45rem 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: 'Fira Code', monospace;
  font-size: 0.8rem;
}

.ध्वजा-दीपक {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #334155;
  transition: all 0.25s ease;
}

.ध्वजा-दीपक.प्रज्वलित {
  background: var(--वर्ण-आभा);
  box-shadow: 0 0 10px var(--वर्ण-आभा);
}

/* ४ दत्त पंजिका (4 Data Registers Panel) */
.पंजिका-जाल {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.पंजिका-कार्ड {
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  padding: 0.85rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  position: relative;
  transition: all 0.25s ease;
  cursor: pointer;
}

.पंजिका-कार्ड:hover {
  background: rgba(30, 41, 59, 0.8);
  border-color: rgba(99, 102, 241, 0.35);
}

.पंजिका-कार्ड.सक्रिय-परिवर्तन {
  animation: दीप्ति-कंपन 0.6s ease;
  border-color: var(--वर्ण-सफलता);
}

@keyframes दीप्ति-कंपन {
  0% { box-shadow: 0 0 0 rgba(16, 185, 129, 0.7); }
  50% { box-shadow: 0 0 20px rgba(16, 185, 129, 0.8); }
  100% { box-shadow: 0 0 0 rgba(16, 185, 129, 0); }
}

.पंजिका-शीर्ष-भाग {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.पंजिका-नाम {
  font-weight: 700;
  font-size: 1.05rem;
  color: #e2e8f0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.पंजिका-टैग {
  font-size: 0.7rem;
  font-family: 'Fira Code', monospace;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  background: rgba(99, 102, 241, 0.15);
  color: #a5b4fc;
}

.पंजिका-दशमलव {
  font-family: 'Fira Code', monospace;
  font-weight: 700;
  font-size: 1.35rem;
  color: #38bdf8;
}

.पंजिका-बिट-पट्टिका {
  display: flex;
  gap: 0.4rem;
  margin-top: 0.2rem;
}

.बिट-गोलक {
  flex: 1;
  height: 32px;
  background: rgba(11, 15, 25, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Fira Code', monospace;
  font-size: 0.88rem;
  font-weight: 700;
  color: #64748b;
  cursor: pointer;
  user-select: none;
  transition: all 0.2s ease;
}

.बिट-गोलक:hover {
  border-color: var(--वर्ण-द्वितीयक);
}

.बिट-गोलक.सक्रिय-बिट {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.3), rgba(99, 102, 241, 0.3));
  border-color: #38bdf8;
  color: #38bdf8;
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.3);
}

/* विशेष प्रयोजन पंजिका (PC & IR) */
.विशेष-पंजिका-ग्रिड {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
  margin-bottom: 0.3rem;
}

.लघु-पंजिका {
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: 10px;
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.लघु-पंजिका-नाम {
  font-size: 0.76rem;
  color: var(--वर्ण-उपपाठ);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.लघु-पंजिका-मान {
  font-family: 'Fira Code', monospace;
  font-size: 1.1rem;
  font-weight: 700;
  color: #a5b4fc;
}

/* संक्रिया विवरण व लॉग (Console & Log) */
.विवरण-फलक {
  background: rgba(11, 15, 25, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 0.9rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  max-height: 200px;
  overflow-y: auto;
  font-family: 'Fira Code', monospace;
  font-size: 0.8rem;
}

.विवरण-प्रविष्टि {
  color: #94a3b8;
  display: flex;
  gap: 0.6rem;
  align-items: baseline;
}

.विवरण-समय {
  color: #64748b;
  font-size: 0.74rem;
}

.विवरण-संदेश {
  color: #e2e8f0;
}

.विवरण-प्रकाश {
  color: #38bdf8;
  font-weight: 600;
}

/* पादलेख (Footer) */
footer {
  text-align: center;
  padding: 1.2rem;
  font-size: 0.85rem;
  color: var(--वर्ण-उपपाठ);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  background: rgba(11, 15, 25, 0.6);
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.5rem;
}

.पाद-लिंक {
  color: #818cf8;
  text-decoration: none;
  transition: color 0.2s ease;
}

.पाद-लिंक:hover {
  color: #a5b4fc;
}

/* अधःस्थित पूर्ण-विस्तार पिन एवं तरंगरूप फलक (Bottom Full-Width GPIO & Waveform Panel) */
.अधः-पिन-फलक {
  background: var(--फलक-पृष्ठभूमि);
  border: 1px solid var(--फलक-सीमा);
  border-radius: 18px;
  padding: 1.3rem 2.5rem;
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  margin: 0.5rem 2.5rem 1.5rem 2.5rem;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: var(--संक्रमण-काल);
}

.अधः-पिन-फलक:hover {
  border-color: rgba(99, 102, 241, 0.45);
}

/* तरंगरूप क्षैतिज स्क्रॉलबार (Waveform Horizontal Scrollbar) */
#तरंगरूप-पात्र {
  scrollbar-width: thin;
  scrollbar-color: #6366f1 rgba(15, 23, 42, 0.8);
}

#तरंगरूप-पात्र::-webkit-scrollbar {
  height: 10px;
}

#तरंगरूप-पात्र::-webkit-scrollbar-track {
  background: rgba(15, 23, 42, 0.8);
  border-radius: 6px;
}

#तरंगरूप-पात्र::-webkit-scrollbar-thumb {
  background: #6366f1;
  border-radius: 6px;
  border: 2px solid rgba(15, 23, 42, 0.8);
}

#तरंगरूप-पात्र::-webkit-scrollbar-thumb:hover {
  background: #818cf8;
}