/* ZIDDI FOUNDER THEMED CSS FOR SIX SIGMA QUIZ */

:root {
  /* Color System from Ziddi-Founder */
  --bg-ink: #070B11;
  --panel-bg: #0F1622;
  --panel-bg-hover: #151F2F;
  --grid-line: #172433;
  --accent-amber: #FFB23F;
  --accent-amber-dim: #9C6721;
  --accent-amber-glow: rgba(255, 178, 63, 0.12);
  --accent-green: #6FCF97;
  --accent-green-glow: rgba(111, 207, 151, 0.12);
  --accent-red: #D9695C;
  --accent-red-glow: rgba(217, 105, 92, 0.12);
  --text-main: #F0F2F5;
  --text-muted: #8E9CAE;
  --border-dim: #1D2A3A;
  --border-bright: #31465F;
  
  /* Fonts */
  --font-logo: 'Archivo Black', sans-serif;
  --font-heading: 'Barlow Condensed', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
  --font-body: 'Inter', sans-serif;
  /* Support for Hindi */
  --font-hindi: 'Noto Sans Devanagari', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body), var(--font-hindi);
  background: var(--bg-ink);
  color: var(--text-main);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
}

/* Typography Enhancements */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.1;
}

.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}

/* Base Utilities */
.wrap {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}
.relative { position: relative; }

/* Blueprint Grid Backdrop */
.blueprint-bg {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.25;
  pointer-events: none;
  z-index: 0;
  position: fixed;
}

/* Exclusivity Ticker */
.exclusivity-banner {
  background: var(--accent-amber);
  color: var(--bg-ink);
  overflow: hidden;
  white-space: nowrap;
  padding: 10px 0;
  border-bottom: 1px solid var(--accent-amber-dim);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  z-index: 100;
  position: relative;
}

.banner-track {
  display: inline-block;
  animation: ticker 35s linear infinite;
}

.banner-track span {
  display: inline-block;
  padding: 0 15px;
}

.banner-track .divider {
  color: var(--accent-amber-dim);
  font-weight: bold;
}

@keyframes ticker {
  0% { transform: translate3d(0, 0, 0); }
  100% { transform: translate3d(-50%, 0, 0); }
}

/* Header & Navigation */
header {
  position: sticky;
  top: 0;
  z-index: 99;
  background: rgba(7, 11, 17, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-dim);
}

.nav {
  max-width: 1140px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-logo);
  font-size: 1.25rem;
  color: var(--text-main);
  text-decoration: none;
  letter-spacing: -0.02em;
  transition: opacity 0.2s;
}

.logo span {
  color: var(--accent-amber);
}

.lang-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}

.lang-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-amber);
  text-transform: uppercase;
}

.lang-dropdown {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 8px 12px;
  background: var(--panel-bg);
  border: 1px solid var(--border-bright);
  color: var(--text-main);
  cursor: pointer;
  border-radius: 4px;
  outline: none;
  transition: all 0.2s ease;
}

.lang-dropdown:hover, .lang-dropdown:focus {
  border-color: var(--accent-amber);
  box-shadow: 0 0 10px var(--accent-amber-glow);
}

.lang-dropdown option {
  background: var(--panel-bg);
  color: var(--text-main);
}

/* App Screens */
.app-container {
  position: relative;
  z-index: 2;
  padding: 60px 0;
  min-height: calc(100vh - 120px);
}

.screen { display: none; }
.screen.active { display: block; }

/* Home / Readiness Card (Card Design mimicking diagnostic) */
.diagnostic-card {
  background: var(--panel-bg);
  border: 1px solid var(--border-dim);
  max-width: 700px;
  margin: 0 auto;
  padding: 48px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.5);
}

.diagnostic-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 100%; height: 2px;
  background: var(--accent-amber);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-amber);
  letter-spacing: 0.2em;
  margin-bottom: 12px;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 8px;
}
.eyebrow::before {
  content: '';
  display: inline-block;
  width: 16px;
  height: 1px;
  background: var(--accent-amber);
}

.home-title {
  font-size: 2.2rem;
  color: var(--text-main);
  margin-bottom: 8px;
}

.home-sub {
  color: var(--text-muted);
  margin-bottom: 30px;
  font-size: 1rem;
}

/* Chapter Grid */
.chapter-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 30px;
}

.chap-card {
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border-dim);
  padding: 16px;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 12px;
}

.chap-card:hover {
  border-color: var(--border-bright);
  background: var(--panel-bg-hover);
}

.chap-card.selected {
  border-color: var(--accent-amber);
  background: var(--accent-amber-glow);
}

.chap-icon {
  font-family: var(--font-mono);
  color: var(--accent-amber);
  font-size: 0.8rem;
}

.chap-details {
  display: flex;
  flex-direction: column;
}

.chap-name {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-main);
}

.chap-count {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* Difficulty Row */
.difficulty-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 30px;
  padding: 16px;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border-dim);
}

.diff-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.diff-btn {
  background: transparent;
  border: 1px solid var(--border-dim);
  color: var(--text-muted);
  padding: 6px 14px;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  cursor: pointer;
  transition: all 0.2s;
}

.diff-btn:hover { border-color: var(--text-main); color: var(--text-main); }
.diff-btn.active { border-color: var(--accent-amber); color: var(--accent-amber); background: rgba(255, 178, 63, 0.05); }

/* Buttons */
.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 16px 24px;
  border: 1px solid var(--accent-amber);
  color: var(--accent-amber);
  background: transparent;
  cursor: pointer;
  transition: all 0.25s;
  width: 100%;
}

.btn-solid {
  background: var(--accent-amber);
  color: var(--bg-ink);
  font-weight: 600;
}

.btn-solid:hover {
  background: transparent;
  color: var(--accent-amber);
  box-shadow: 0 0 15px var(--accent-amber-glow);
}

/* QUIZ SCREEN */
.quiz-card {
  background: var(--panel-bg);
  border: 1px solid var(--border-dim);
  max-width: 800px;
  margin: 0 auto;
  padding: 40px;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.5);
}

.quiz-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border-dim);
  padding-bottom: 16px;
}

.q-meta {
  display: flex;
  gap: 16px;
  align-items: center;
}

.tracking-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-amber);
  border: 1px solid var(--accent-amber);
  padding: 4px 8px;
}

#q-counter {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.timer-box {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
}

.timer-label { font-size: 0.7rem; color: var(--text-muted); }
#timer-val { font-size: 1.2rem; color: var(--accent-green); font-weight: bold; }

.meter-bar {
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.05);
  margin-bottom: 30px;
  position: relative;
  overflow: hidden;
}

.meter-fill {
  position: absolute;
  top: 0; left: 0; height: 100%;
  background: var(--accent-amber);
  box-shadow: 0 0 10px var(--accent-amber-glow);
  transition: width 0.4s ease;
  width: 0%;
}

.question-text {
  font-size: 1.3rem;
  line-height: 1.5;
  color: var(--text-main);
  margin-bottom: 30px;
  font-weight: 400;
}

.options-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.option-btn {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 20px;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border-dim);
  color: var(--text-main);
  font-size: 0.95rem;
  text-align: left;
  cursor: pointer;
  transition: all 0.2s;
}

.option-btn:hover:not(:disabled) {
  border-color: var(--border-bright);
  background: var(--panel-bg-hover);
}

.opt-label {
  font-family: var(--font-mono);
  color: var(--accent-amber);
  font-size: 0.8rem;
  padding-top: 2px;
}

.option-btn.correct {
  border-color: var(--accent-green);
  background: rgba(111, 207, 151, 0.05);
}
.option-btn.correct .opt-label { color: var(--accent-green); }

.option-btn.wrong {
  border-color: var(--accent-red);
  background: rgba(217, 105, 92, 0.05);
}
.option-btn.wrong .opt-label { color: var(--accent-red); }

.option-btn:disabled { cursor: default; }

.quiz-footer {
  margin-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-dim);
  padding-top: 16px;
}

.score-display {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
}
#live-score {
  color: var(--accent-amber);
  font-weight: bold;
  font-size: 1rem;
}

.btn-skip {
  background: transparent;
  border: 1px solid var(--border-dim);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 8px 16px;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-skip:hover {
  border-color: var(--text-main);
  color: var(--text-main);
}


/* RESULT SCREEN */
.result-card {
  background: var(--panel-bg);
  border: 1px solid var(--border-dim);
  border-top: 3px solid var(--accent-green);
  max-width: 700px;
  margin: 0 auto;
  padding: 48px;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.5);
}

.result-header {
  text-align: center;
  margin-bottom: 40px;
}

.readout-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--accent-green);
  margin-bottom: 16px;
  display: inline-block;
}

.result-title {
  font-size: 2.2rem;
  color: var(--text-main);
  margin-bottom: 8px;
}

.sigma-level-display {
  display: inline-block;
  border: 1px solid var(--accent-amber);
  background: rgba(255, 178, 63, 0.05);
  padding: 12px 24px;
}

.sl-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  display: block;
}

#sigma-level {
  font-family: var(--font-heading);
  font-size: 2rem;
  color: var(--accent-amber);
  line-height: 1;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 30px;
}

.stat-box {
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border-dim);
  padding: 20px;
  text-align: center;
}
.stat-box strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.8rem;
  margin-bottom: 4px;
}
.stat-box span {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  font-family: var(--font-mono);
}

.s-correct { color: var(--accent-green); border-bottom: 2px solid var(--accent-green) !important; }
.s-wrong { color: var(--accent-red); border-bottom: 2px solid var(--accent-red) !important; }
.s-skip { color: var(--accent-amber); border-bottom: 2px solid var(--accent-amber) !important; }

.result-btns {
  display: flex;
  gap: 16px;
  margin-bottom: 40px;
}
.result-btns .btn { flex: 1; }

.review-section {
  border-top: 1px solid var(--border-dim);
  padding-top: 30px;
}

.review-header {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  text-transform: uppercase;
}

.review-item {
  background: rgba(255,255,255,0.01);
  border: 1px solid var(--border-dim);
  padding: 16px;
  margin-bottom: 12px;
  border-left: 3px solid transparent;
}
.review-item.r-correct { border-left-color: var(--accent-green); }
.review-item.r-wrong { border-left-color: var(--accent-red); }

.review-q {
  font-size: 0.95rem;
  color: var(--text-main);
  margin-bottom: 8px;
}
.review-ans {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}
.ans-correct { color: var(--accent-green); font-weight: bold; }
.ans-wrong { color: var(--accent-red); font-weight: bold; }

/* Feedback flash */
.feedback-flash {
  position: fixed; top: 120px; left: 50%; transform: translateX(-50%);
  padding: 10px 24px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  animation: flashIn 0.3s ease;
  z-index: 999;
  border: 1px solid;
}
.feedback-flash.ok {
  background: var(--bg-ink);
  color: var(--accent-green);
  border-color: var(--accent-green);
  box-shadow: 0 0 15px var(--accent-green-glow);
}
.feedback-flash.no {
  background: var(--bg-ink);
  color: var(--accent-red);
  border-color: var(--accent-red);
  box-shadow: 0 0 15px var(--accent-red-glow);
}

@keyframes flashIn { from{opacity:0;transform:translateX(-50%) translateY(-10px)} to{opacity:1;transform:translateX(-50%) translateY(0)} }