/* ==========================================================================
   VELOCITY SPEEDTEST STYLESHEET (PWA READY, THEME ENGINE - LIGHT & DARK)
   ========================================================================== */

:root {
  /* Default / Dark Theme Tokens */
  --bg-primary: #050505;
  --bg-surface: #0f0f0f;
  --bg-surface-hover: #181818;
  --border-color: #222222;
  --border-light: #333333;
  
  --text-main: #ffffff;
  --text-muted: #888888;
  --text-dim: #555555;
  
  --accent-white: #ffffff;
  --accent-black: #000000;
  --accent-red: #ff3333;
  --accent-green: #00e676;
  --accent-yellow: #ffc107;

  --gauge-bg-arc: #121212;
  --gauge-progress-arc: #ffffff;
  --gauge-tick: #333333;
  --gauge-glow: rgba(255, 255, 255, 0.45);

  --modal-overlay-bg: rgba(0, 0, 0, 0.85);
  --modal-card-bg: #0c0c0c;
  --abort-overlay-bg: rgba(5, 5, 5, 0.85);

  --btn-icon-color: #ffffff;
  --btn-icon-hover-bg: #ffffff;
  --btn-icon-hover-text: #000000;
  --btn-icon-shadow: rgba(255, 255, 255, 0.4);

  --btn-banner-bg: #1a1a1a;
  --btn-banner-text: #ffffff;
  --btn-banner-hover-bg: #ffffff;
  --btn-banner-hover-text: #000000;

  --tooltip-bg: #121212;
  --tooltip-text: #dddddd;

  --footer-dot: #333333;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);

  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg-primary: #f8f9fa;
    --bg-surface: #ffffff;
    --bg-surface-hover: #f1f5f9;
    --border-color: #e2e8f0;
    --border-light: #cbd5e1;
    
    --text-main: #0f172a;
    --text-muted: #64748b;
    --text-dim: #94a3b8;
    
    --accent-white: #0f172a;
    --accent-black: #ffffff;
    --accent-red: #ef4444;
    --accent-green: #10b981;
    --accent-yellow: #f59e0b;

    --gauge-bg-arc: #e2e8f0;
    --gauge-progress-arc: #0f172a;
    --gauge-tick: #cbd5e1;
    --gauge-glow: rgba(15, 23, 42, 0.25);

    --modal-overlay-bg: rgba(15, 23, 42, 0.45);
    --modal-card-bg: #ffffff;
    --abort-overlay-bg: rgba(248, 249, 250, 0.88);

    --btn-icon-color: #0f172a;
    --btn-icon-hover-bg: #0f172a;
    --btn-icon-hover-text: #ffffff;
    --btn-icon-shadow: rgba(15, 23, 42, 0.25);

    --btn-banner-bg: #f1f5f9;
    --btn-banner-text: #0f172a;
    --btn-banner-hover-bg: #0f172a;
    --btn-banner-hover-text: #ffffff;

    --tooltip-bg: #ffffff;
    --tooltip-text: #334155;

    --footer-dot: #cbd5e1;

    color-scheme: light;
  }
}

[data-theme="light"] {
  --bg-primary: #f8f9fa;
  --bg-surface: #ffffff;
  --bg-surface-hover: #f1f5f9;
  --border-color: #e2e8f0;
  --border-light: #cbd5e1;
  
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-dim: #94a3b8;
  
  --accent-white: #0f172a;
  --accent-black: #ffffff;
  --accent-red: #ef4444;
  --accent-green: #10b981;
  --accent-yellow: #f59e0b;

  --gauge-bg-arc: #e2e8f0;
  --gauge-progress-arc: #0f172a;
  --gauge-tick: #cbd5e1;
  --gauge-glow: rgba(15, 23, 42, 0.25);

  --modal-overlay-bg: rgba(15, 23, 42, 0.45);
  --modal-card-bg: #ffffff;
  --abort-overlay-bg: rgba(248, 249, 250, 0.88);

  --btn-icon-color: #0f172a;
  --btn-icon-hover-bg: #0f172a;
  --btn-icon-hover-text: #ffffff;
  --btn-icon-shadow: rgba(15, 23, 42, 0.25);

  --btn-banner-bg: #f1f5f9;
  --btn-banner-text: #0f172a;
  --btn-banner-hover-bg: #0f172a;
  --btn-banner-hover-text: #ffffff;

  --tooltip-bg: #ffffff;
  --tooltip-text: #334155;

  --footer-dot: #cbd5e1;

  color-scheme: light;
}

[data-theme="dark"] {
  --bg-primary: #050505;
  --bg-surface: #0f0f0f;
  --bg-surface-hover: #181818;
  --border-color: #222222;
  --border-light: #333333;
  
  --text-main: #ffffff;
  --text-muted: #888888;
  --text-dim: #555555;
  
  --accent-white: #ffffff;
  --accent-black: #000000;
  --accent-red: #ff3333;
  --accent-green: #00e676;
  --accent-yellow: #ffc107;

  --gauge-bg-arc: #121212;
  --gauge-progress-arc: #ffffff;
  --gauge-tick: #333333;
  --gauge-glow: rgba(255, 255, 255, 0.45);

  --modal-overlay-bg: rgba(0, 0, 0, 0.85);
  --modal-card-bg: #0c0c0c;
  --abort-overlay-bg: rgba(5, 5, 5, 0.85);

  --btn-icon-color: #ffffff;
  --btn-icon-hover-bg: #ffffff;
  --btn-icon-hover-text: #000000;
  --btn-icon-shadow: rgba(255, 255, 255, 0.4);

  --btn-banner-bg: #1a1a1a;
  --btn-banner-text: #ffffff;
  --btn-banner-hover-bg: #ffffff;
  --btn-banner-hover-text: #000000;

  --tooltip-bg: #121212;
  --tooltip-text: #dddddd;

  --footer-dot: #333333;

  color-scheme: dark;
}

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

html {
  scroll-behavior: smooth;
  scroll-snap-type: y mandatory;
  height: 100%;
}

body {
  width: 100%;
  height: 100%;
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  overflow-y: scroll;
  scroll-snap-type: y mandatory;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

.hidden {
  display: none !important;
}

/* Wrapper */
.app-wrapper {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* HEADER */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.75rem 0;
}

.logo-text {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 2px;
  color: var(--text-main);
}

.nav {
  display: flex;
  gap: 0.6rem;
}

.btn-minimal-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  color: var(--btn-icon-color);
  background: transparent;
  border: none;
  transition: all var(--transition-fast);
}

.btn-minimal-icon:hover {
  color: var(--btn-icon-hover-text);
  background: var(--btn-icon-hover-bg);
  transform: scale(1.05);
  box-shadow: 0 0 20px var(--btn-icon-shadow);
}

/* ==========================================================================
   PAGE 1: HERO SCREEN
   ========================================================================== */
.hero-screen {
  height: 100vh;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding-bottom: 2rem;
  scroll-snap-align: start;
  scroll-snap-stop: always;
}

.hero-center-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  margin-top: -2rem;
  min-height: 340px;
}

.status-bar {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.phase-indicator {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--text-muted);
  text-transform: uppercase;
}

.phase-subtitle {
  font-size: 0.9rem;
  color: var(--text-dim);
}

/* 1. INITIAL ROUND START BUTTON */
.start-button-container {
  display: flex;
  justify-content: center;
  align-items: center;
}

.btn-start-circle {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background-color: var(--accent-white);
  color: var(--accent-black);
  border: none;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 3px;
  box-shadow: 0 0 30px var(--btn-icon-shadow);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), background-color var(--transition-fast), color var(--transition-fast);
  display: flex;
  justify-content: center;
  align-items: center;
}

.btn-start-circle:hover {
  transform: scale(1.06);
  box-shadow: 0 0 50px var(--btn-icon-shadow);
  background-color: var(--text-main);
  color: var(--bg-primary);
}

/* 2. SPEEDOMETER GAUGE */
.hero-gauge-container {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  animation: fadeInGauge 0.4s ease-out;
}

@keyframes fadeInGauge {
  from { opacity: 0; transform: scale(0.85); }
  to { opacity: 1; transform: scale(1); }
}

.gauge-ring-wrapper {
  position: relative;
  width: 250px;
  height: 250px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.gauge-svg {
  width: 100%;
  height: 100%;
}

.rev-bg-arc {
  fill: none;
  stroke: var(--gauge-bg-arc);
  stroke-width: 6;
  stroke-linecap: round;
}

.rev-progress-arc {
  fill: none;
  stroke: var(--gauge-progress-arc);
  stroke-width: 6;
  stroke-linecap: round;
  transition: stroke-dashoffset 0.15s ease-out;
  filter: drop-shadow(0 0 10px var(--gauge-glow));
}

.rev-tick-dot {
  fill: var(--gauge-tick);
}

.hero-number-wrapper {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

.hero-speed-value {
  font-size: 3.8rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -1.5px;
  color: var(--text-main);
  font-variant-numeric: tabular-nums;
}

.hero-speed-unit {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-top: 0.4rem;
}

.abort-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: var(--abort-overlay-bg);
  backdrop-filter: blur(4px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
  z-index: 10;
}

.hero-gauge-container:hover .abort-overlay {
  opacity: 1;
  pointer-events: auto;
}

.hero-gauge-container:hover .hero-number-wrapper {
  opacity: 0.1;
}

.btn-abort-overlay {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.6rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: #ffffff;
  background-color: var(--accent-red);
  border: 1px solid var(--accent-red);
  border-radius: var(--radius-full);
  box-shadow: 0 0 25px rgba(239, 68, 68, 0.4);
  transition: transform var(--transition-fast);
}

.btn-abort-overlay:hover {
  transform: scale(1.05);
}

/* 3. BORDERLESS CLEAN HERO RESULTS VIEW */
.completed-results-view {
  width: 100%;
  max-width: 520px;
  animation: fadeInResults 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes fadeInResults {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}

.results-hero-minimal {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  padding: 1rem 0;
}

.results-main-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.results-sub-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  border-top: 1px solid var(--border-color);
  padding-top: 1.5rem;
}

.result-box-clean {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
}

.res-tag-clean {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--text-muted);
}

.res-num-wrap {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
}

.res-num-clean {
  font-size: 3.4rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1;
  letter-spacing: -1px;
  font-variant-numeric: tabular-nums;
}

.res-num-sub-clean {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.res-unit-clean {
  font-size: 0.85rem;
  color: var(--text-dim);
  font-weight: 500;
}

.results-action-row {
  display: flex;
  justify-content: center;
  padding-top: 0.5rem;
}

.btn-retry-minimal {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 2rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--accent-black);
  background-color: var(--accent-white);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.btn-retry-minimal:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 25px var(--btn-icon-shadow);
  background-color: var(--text-main);
  color: var(--bg-primary);
}

/* Scroll Hint */
.scroll-hint {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-dim);
  font-size: 0.85rem;
  cursor: pointer;
}

.scroll-hint-text {
  font-weight: 400;
  letter-spacing: 0.5px;
}

.scroll-hint-arrow {
  animation: arrowBounce 1.8s cubic-bezier(0.45, 0.05, 0.55, 0.95) infinite;
}

@keyframes arrowBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

/* ==========================================================================
   PAGE 2: DETAILS & EXPLANATION SECTION
   ========================================================================== */
.details-screen {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 3rem;
  padding: 3rem 0;
  border-top: 1px solid var(--border-color);
  scroll-snap-align: start;
  scroll-snap-stop: always;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.metric-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
  position: relative;
}

.metric-card.active-phase {
  border-color: var(--text-main);
  box-shadow: 0 0 12px var(--btn-icon-shadow);
}

.metric-header {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-muted);
}

.has-tooltip {
  cursor: help;
}

.metric-header.has-tooltip .metric-title {
  border-bottom: 1px dotted var(--text-dim);
}

/* DOWNWARD TOOLTIPS */
.stat-tooltip.tooltip-down {
  position: absolute;
  top: calc(100% + 12px);
  bottom: auto;
  left: 0;
  transform: translateY(-4px);
  width: 210px;
  padding: 0.85rem 0.9rem;
  background-color: var(--tooltip-bg);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  color: var(--tooltip-text);
  font-size: 0.75rem;
  font-family: var(--font-sans);
  line-height: 1.45;
  text-transform: none;
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.25);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  z-index: 100;
}

.stat-tooltip.tooltip-down strong {
  color: var(--text-main);
  display: block;
  margin-bottom: 0.2rem;
}

.has-tooltip:hover .stat-tooltip.tooltip-down {
  opacity: 1;
  transform: translateY(0);
}

.metric-icon {
  width: 14px;
  height: 14px;
  stroke: var(--text-muted);
}

.metric-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 1.5px;
}

.metric-body {
  display: flex;
  align-items: baseline;
  gap: 0.25rem;
}

.metric-value {
  font-size: 1.5rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--text-main);
}

.metric-unit {
  font-size: 0.75rem;
  color: var(--text-dim);
}

.graph-section {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.graph-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.graph-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--text-muted);
}

.graph-legend {
  display: flex;
  gap: 1rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--text-main);
}

.legend-ul .legend-dot {
  background-color: var(--text-muted);
}

.canvas-container {
  width: 100%;
  height: 120px;
}

#throughput-chart {
  width: 100%;
  height: 100%;
}

/* CAPABILITIES MATRIX */
.capabilities-section {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.section-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--text-muted);
  text-transform: uppercase;
}

.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.capability-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.cap-icon-svg {
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
}

.cap-info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.cap-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
}

.cap-status {
  font-size: 0.8rem;
  font-weight: 600;
}

.status-pending { color: var(--text-dim); }
.status-passed { color: var(--accent-green) !important; }
.status-warn { color: var(--accent-yellow) !important; }
.status-failed { color: var(--accent-red) !important; }

/* ENGINE ARCHITECTURE & BUTTON GROUP */
.explanation-section {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  border-top: 1px solid var(--border-color);
  padding-top: 2.5rem;
}

.architecture-banner-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.75rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.arch-content {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex: 1;
  min-width: 280px;
}

.arch-text {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.arch-text h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
}

.arch-text p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.arch-buttons-group {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.btn-security-banner {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.2rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--btn-banner-text);
  background-color: var(--btn-banner-bg);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-security-banner:hover {
  background-color: var(--btn-banner-hover-bg);
  color: var(--btn-banner-hover-text);
  border-color: var(--btn-banner-hover-bg);
}

.accent-banner-btn {
  background-color: var(--btn-banner-hover-bg);
  color: var(--btn-banner-hover-text);
  border-color: var(--btn-banner-hover-bg);
}

.accent-banner-btn:hover {
  background-color: var(--btn-banner-bg);
  color: var(--btn-banner-text);
  box-shadow: 0 0 15px var(--btn-icon-shadow);
}

/* FOOTER */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 2rem 0;
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.75rem;
  color: var(--text-dim);
  flex-wrap: wrap;
}

.footer-dot {
  color: var(--footer-dot);
}

.footer-link-btn {
  color: var(--text-muted);
  font-size: 0.75rem;
  transition: color var(--transition-fast);
}

.footer-link-btn:hover {
  color: var(--text-main);
  text-decoration: underline;
}

/* MODALS */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: var(--modal-overlay-bg);
  backdrop-filter: blur(8px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.modal-overlay.hidden {
  display: none;
}

.modal-card {
  background-color: var(--modal-card-bg);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 550px;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
}

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h2 {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  letter-spacing: 2px;
  color: var(--text-main);
}

.btn-close-modal {
  font-size: 1.5rem;
  color: var(--text-muted);
}

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  flex: 1;
}

.modal-text-content {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  line-height: 1.6;
}

.modal-text-content h3 {
  color: var(--text-main);
  font-size: 1rem;
}

.sec-item h4 {
  color: var(--text-main);
  font-size: 0.9rem;
  margin-bottom: 0.3rem;
}

.modal-footer {
  padding: 1.25rem 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

.btn-primary {
  background-color: var(--accent-white);
  color: var(--accent-black);
  font-weight: 600;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
}

.btn-secondary {
  background-color: var(--bg-surface);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
  font-weight: 500;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
}

.history-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.history-item {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.history-stats {
  display: flex;
  gap: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.setting-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.setting-group label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.input-select {
  background-color: var(--bg-surface);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 0.85rem;
  outline: none;
}

/* Responsive */
@media (max-width: 640px) {
  .res-num-clean { font-size: 2.6rem; }
  .res-num-sub-clean { font-size: 1.8rem; }
  .metrics-grid, .capabilities-grid {
    grid-template-columns: 1fr;
  }
  .arch-buttons-group {
    width: 100%;
  }
}