/* 
  LoopCode Clean Monospace TUI Design System
  Replicates the exact terminal experience of LoopCode in a premium browser asset.
  Focuses on thin lines, box borders, high-contrast monospace typography, and zero slop.
*/

@import url('https://fonts.googleapis.com/css2?family=Geist+Mono:wght@200;300;400;500&family=Geist:wght@200;300;400;500&display=swap');

:root {
  --bg-page: #000000;
  --bg-tui: #050507;
  --bg-overlay: #0a0a0d;

  --border-tui: rgba(255, 255, 255, 0.08);
  --border-active: rgba(255, 255, 255, 0.25);

  --text-primary: #f5f5f7;
  --text-muted: #6e6e73;
  --text-dim: #3a3a3c;

  /* TUI Theme Colors */
  --tui-cyan: #00f0ff;
  --tui-cyan-dim: #0088cc;
  --tui-green: #39d353;
  --tui-yellow: #f1e05a;
  --tui-red: #ff453a;
  --tui-gray: #8e8e93;
  --tui-white: #ffffff;

  --font-mono: 'Geist Mono', 'JetBrains Mono', 'Fira Code', monospace;
  --font-sans: 'Geist', sans-serif;

  --transition-smooth: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  background-color: var(--bg-page);
  color: var(--text-primary);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  padding-bottom: 80px;
}

/* Typography */
h1,
h2,
h3,
h4 {
  font-weight: 300;
  letter-spacing: -0.02em;
  color: var(--tui-white);
}

p {
  color: var(--text-muted);
  font-weight: 300;
  font-size: 0.95rem;
  line-height: 1.5;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
header {
  height: 64px;
  border-bottom: 1px solid var(--border-tui);
  display: flex;
  align-items: center;
  position: sticky;
  top: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(12px);
  z-index: 100;
}

.header-inner {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  font-family: var(--font-mono);
}

.logo svg {
  width: 16px;
  height: 16px;
  color: var(--tui-cyan);
}

.header-nav {
  display: flex;
  gap: 24px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.header-nav a:hover {
  color: var(--text-primary);
}

/* Hero */
.hero {
  padding: 60px 0 30px 0;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: 12px;
}

.hero p {
  max-width: 540px;
  margin: 0 auto 24px auto;
  font-size: 0.95rem;
}

/* Copyable installation badge */
.cmd-badge {
  display: inline-flex;
  align-items: center;
  background: var(--bg-tui);
  border: 1px solid var(--border-tui);
  border-radius: 4px;
  padding: 8px 16px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-primary);
  margin-bottom: 40px;
}

.cmd-badge span {
  opacity: 0.8;
}

.cmd-badge button {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  margin-left: 12px;
  display: flex;
  align-items: center;
}

.cmd-badge button:hover {
  color: var(--tui-white);
}

/* High Fidelity TUI Component Shell */
.tui-container {
  background: var(--bg-tui);
  border: 1px solid var(--border-tui);
  border-radius: 8px;
  box-shadow: 0 40px 120px rgba(0, 0, 0, 0.9);
  overflow: hidden;
  position: relative;
  width: 100%;
  margin-bottom: 60px;
}

/* Header line in TUI */
.tui-header {
  height: 32px;
  border-bottom: 1px dashed var(--border-tui);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  user-select: none;
}

.tui-title-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.tui-title {
  color: var(--tui-cyan);
}

.tui-meta {
  color: var(--text-muted);
}

.tui-status-tag {
  color: var(--text-muted);
}

/* Workspace Panels */
.tui-body {
  height: 440px;
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.45;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
}

/* Scrolling transcript list */
.tui-transcript {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 12px;
  padding-right: 8px;
}

/* Custom Scrollbar for Transcript */
.tui-transcript::-webkit-scrollbar {
  width: 4px;
}
.tui-transcript::-webkit-scrollbar-track {
  background: transparent;
}
.tui-transcript::-webkit-scrollbar-thumb {
  background: var(--border-tui);
  border-radius: 2px;
}

.tui-line {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.tui-bullet {
  color: var(--text-muted);
  user-select: none;
}

.tui-content {
  color: var(--text-primary);
  white-space: pre-wrap;
}

.tui-content.success {
  color: var(--tui-green);
}
.tui-content.error {
  color: var(--tui-red);
}
.tui-content.warning {
  color: var(--tui-yellow);
}
.tui-content.info {
  color: var(--tui-cyan);
}
.tui-content.dim {
  color: var(--text-muted);
}

/* Live Status indicator row */
.tui-livestatus {
  border-top: 1px dashed var(--border-tui);
  border-bottom: 1px dashed var(--border-tui);
  padding: 10px 0;
  margin-bottom: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  user-select: none;
}

.tui-status-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.tui-spinner {
  color: var(--tui-cyan);
}

.tui-phase-value {
  color: var(--tui-cyan);
}

.tui-detail-value {
  color: var(--tui-white);
}

.tui-status-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.tui-cost-value {
  color: var(--tui-green);
}

/* Composer / Input line */
.tui-composer {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 28px;
  font-size: 0.8rem;
}

.tui-prompt-symbol {
  color: var(--tui-cyan);
  user-select: none;
}

.tui-composer-text {
  color: var(--text-primary);
  flex: 1;
}

.tui-composer-text.working {
  color: var(--text-muted);
}

.tui-cursor {
  display: inline-block;
  width: 7px;
  height: 14px;
  background: var(--tui-white);
  vertical-align: middle;
  animation: tuiBlink 1s step-end infinite;
}

@keyframes tuiBlink {
  50% {
    opacity: 0;
  }
}

/* Hint Bar / Controls at bottom */
.tui-hints {
  background: rgba(255, 255, 255, 0.01);
  border-top: 1px solid var(--border-tui);
  height: 36px;
  display: flex;
  align-items: center;
  padding: 0 16px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  gap: 16px;
  user-select: none;
}

.tui-hint-item {
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.tui-hint-item span {
  color: var(--tui-cyan);
}

.tui-hint-item:hover {
  color: var(--text-primary);
}

.tui-hint-item.active {
  color: var(--tui-cyan);
}

/* TUI Inline Overlays (Box drawing style) */
.tui-overlay-container {
  position: absolute;
  top: 16px;
  left: 16px;
  right: 16px;
  bottom: 84px;
  background: var(--bg-overlay);
  border: 1px solid var(--tui-cyan);
  border-radius: 4px;
  z-index: 10;
  display: none; /* controlled by JS */
  flex-direction: column;
  padding: 12px 16px;
  box-shadow: 0 10px 50px rgba(0, 0, 0, 0.9);
}

.tui-overlay-container.active {
  display: flex;
}

.tui-overlay-title {
  color: var(--tui-cyan);
  font-size: 0.8rem;
  border-bottom: 1px dashed var(--border-tui);
  padding-bottom: 8px;
  margin-bottom: 12px;
  display: flex;
  justify-content: space-between;
}

.tui-overlay-title span.title-text {
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tui-overlay-title span.close-hint {
  color: var(--text-muted);
  font-size: 0.65rem;
}

.tui-overlay-content {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tui-task-row {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.02);
  padding-bottom: 4px;
}

.tui-task-name {
  color: var(--tui-white);
}

.tui-task-state {
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.tui-task-state.success {
  color: var(--tui-green);
}
.tui-task-state.failed {
  color: var(--tui-red);
}
.tui-task-state.running {
  color: var(--purple);
}
.tui-task-state.pending {
  color: var(--text-muted);
}

/* Verification Overlay layers */
.tui-verify-layer {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 12px;
}

.tui-verify-layer.passed {
  color: var(--tui-green);
}
.tui-verify-layer.failed {
  color: var(--tui-red);
}
.tui-verify-layer.pending {
  color: var(--text-dim);
}

/* Minimal project breakdown section */
.section-title {
  font-size: 1.5rem;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--border-tui);
  padding-bottom: 12px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 80px;
}

.feature-card {
  border: 1px solid var(--border-tui);
  background: var(--bg-tui);
  border-radius: 4px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: var(--transition-smooth);
}

.feature-card:hover {
  border-color: var(--border-active);
}

.feature-card h3 {
  font-size: 1rem;
  font-family: var(--font-mono);
  color: var(--tui-cyan);
}

.feature-card p {
  font-size: 0.85rem;
}

/* CLI Options block */
.cli-options {
  margin-bottom: 8px;
}

.cli-option-row {
  display: flex;
  border-bottom: 1px solid var(--border-tui);
  padding: 12px 0;
  font-size: 0.85rem;
}

.cli-option-name {
  width: 240px;
  font-family: var(--font-mono);
  color: var(--tui-cyan-dim);
}

.cli-option-desc {
  flex: 1;
  color: var(--text-muted);
}

/* Monospace toml config layout */
.config-layout {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  margin: 60px 0 80px 0;
  align-items: center;
}

.config-code-block {
  background: var(--bg-tui);
  border: 1px solid var(--border-tui);
  border-radius: 4px;
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--tui-white);
  overflow-x: auto;
}

.config-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 16px;
}

/* Setup Section */
.setup-box {
  background: radial-gradient(circle at top, rgba(0, 240, 255, 0.04) 0%, rgba(5, 5, 7, 0.95) 100%), var(--bg-tui);
  border: 1px solid var(--border-tui);
  border-radius: 6px;
  padding: 56px 48px;
  text-align: center;
  margin-bottom: 100px;
  box-shadow: 0 20px 80px rgba(0, 240, 255, 0.02);
}

/* Footer styling */
footer {
  border-top: 1px dashed var(--border-tui);
  padding: 40px 0;
  font-size: 0.75rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
}

@media (max-width: 900px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
  .config-layout {
    grid-template-columns: 1fr;
  }
  .tui-livestatus {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .cli-option-row {
    flex-direction: column;
    gap: 4px;
  }
  .cli-option-name {
    width: 100%;
  }
}