/* ===========================
   AI Flow Diagnostic — Styles
   =========================== */

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

:root {
  --orange: #EE4413;
  --border-orange: 2px solid #EE4413;
  --black: #111111;
  --white: #ffffff;
  --gray: #888888;
  --light-gray: #e8e8e8;
  --border: 2px solid var(--black);
  --border-orange: 2px solid var(--orange);
}

html {
  font-size: 16px;
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--white);
  color: var(--black);
  min-height: 100vh;
  overflow-x: hidden;
  cursor: default;
}

/* --- Header --- */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border: 2px solid #EE4413;
  background: white;
  box-shadow: 5px 5px 0px 0px #EE4413;
  margin: 20px 20px 0 20px;
  position: relative;
  z-index: 10;
}

.site-title {
  font-family: 'Inter', sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: 0;
  line-height: 1;
  margin: 0;
}

.info-btn {
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0;
  color: var(--orange);
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px 8px;
  transition: opacity 0.15s;
}

.info-btn:hover {
  opacity: 0.65;
}

/* --- Main Layout --- */
.main-layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 0;
  height: calc(100vh - 80px);
  overflow: hidden;
}

/* --- Left Panel --- */
.left-panel {
  padding: 32px 24px;
  border-right: var(--border);
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: relative;
}

.intro-text {
  font-size: 13px;
  line-height: 1.5;
  color: var(--black);
}

/* --- Window (Retro '90s Chrome) --- */
.window {
  border: 2px solid #EE4413;
  box-shadow: 5px 5px 0px 0px #EE4413;
  background: var(--white);
  position: relative;
  user-select: none;
}

.window-titlebar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--white);
  border-bottom: 1px solid #EE4413;
  padding: 6px 10px;
  cursor: grab;
}

.window-titlebar:active {
  cursor: grabbing;
}

.window-title {
  font-family: 'Inter', sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.window-minimize {
  background: none;
  border: 1px solid #EE4413;
  width: 22px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  color: #EE4413;
  padding: 0;
  transition: background 0.1s;
  flex-shrink: 0;
}

.window-minimize:hover {
  background: var(--light-gray);
}

.window-body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.window-body.minimized {
  display: none;
}

.task-input {
  width: 100%;
  height: 250px;
  min-height: 250px;
  max-height: 260px;
  resize: none;
  border: 1px solid #EE4413;
  padding: 12px;
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--black);
  background: var(--white);
  outline: none;
  transition: border-color 0.15s;
}

.task-input:focus {
  border-color: var(--orange);
}

.task-input::placeholder {
  font-style: italic;
  font-weight: 300;
  color: var(--gray);
}

.textarea-wrapper {
  position: relative;
}

.window-footer {
  display: flex;
  justify-content: flex-end;
}

.inline-submit-btn {
  background: #EE4413;
  border: none;
  color: #ffffff;
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  line-height: 1;
  padding: 8px 20px;
  transition: opacity 0.15s;
}

.inline-submit-btn:hover:not(:disabled) {
  opacity: 0.85;
}

.inline-submit-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* --- Result Card --- */
.result-card {
  border: 2px solid #EE4413;
  box-shadow: 5px 5px 0px 0px #EE4413;
  background: var(--white);
  position: relative;
  user-select: none;
  animation: slideDown 0.3s ease-out;
}

.result-card-titlebar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #EE4413;
  padding: 8px 10px 8px 12px;
  cursor: grab;
}

.result-card-titlebar:active {
  cursor: grabbing;
}

.result-zone-name {
  font-family: 'Inter', sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--white);
}

.result-card-body {
  padding: 16px 16px 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.result-explanation {
  font-size: 12px;
  line-height: 1.4;
  margin: 0;
}

.result-advice {
  font-size: 11px;
  line-height: 1.4;
  color: var(--gray);
  font-style: italic;
  margin: 0;
}

.result-close-btn {
  background: none;
  border: none;
  color: var(--white);
  font-size: 1.1rem;
  cursor: pointer;
  line-height: 1;
  padding: 0 2px;
  opacity: 0.8;
  flex-shrink: 0;
}

.result-close-btn:hover {
  opacity: 1;
}

.result-card-footer {
  padding: 12px 16px 14px;
  display: flex;
  justify-content: flex-end;
}

.try-another-btn {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--white);
  background: #EE4413;
  border: none;
  padding: 8px 20px;
  cursor: pointer;
  transition: opacity 0.15s;
}

.try-another-btn:hover {
  opacity: 0.85;
}

/* --- Chart Section --- */
.chart-section {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  position: relative;
  height: calc(100vh - 80px);
  box-sizing: border-box;
}

.chart-wrapper {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.flow-chart {
  width: auto;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  display: block;
}

/* Zone areas (invisible hit targets) */
.zone-area {
  fill: transparent;
  stroke: none;
  cursor: pointer;
  transition: fill 0.15s;
}

.zone-area:hover {
  fill: rgba(204, 68, 0, 0.06);
}

/* Zone labels */
.zone-label {
  font-family: 'Inter', sans-serif;
  font-size: 24px;
  font-weight: 700;
  fill: var(--black);
  letter-spacing: -0.01em;
  pointer-events: none;
}

.zone-sublabel {
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  font-weight: 400;
  fill: #999999;
  pointer-events: none;
}

/* Axis labels (positioned HTML divs outside SVG) */
.axis-label {
  position: absolute;
  font-family: 'Inter', sans-serif;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--orange);
  text-transform: uppercase;
  pointer-events: none;
  white-space: nowrap;
}

.axis-label-y {
  top: 50%;
  left: -38px;
  transform: translateY(-50%) rotate(-90deg);
  transform-origin: center center;
}

.axis-label-x {
  bottom: 16px;
  right: 0;
}

/* --- Zone Card Backdrop (mobile only, hidden by default) --- */
.zone-card-backdrop {
  display: none;
}

/* --- Zone Hover Card --- */
.zone-card {
  position: fixed;
  z-index: 200;
  background: var(--white);
  border: 2px solid #EE4413;
  max-width: 280px;
  min-width: 240px;
  box-shadow: 5px 5px 0px 0px #EE4413;
  animation: cardIn 0.15s ease-out;
  pointer-events: none;
}

.zone-card-header {
  background: #EE4413;
  padding: 10px 16px;
  border-bottom: none;
}

.zone-card-name {
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--white);
}

.zone-card-oneliner {
  font-style: italic;
  font-weight: 300;
  font-size: 11px;
  color: var(--gray);
  padding: 16px 20px 0;
  line-height: 1.4;
}

.zone-card-desc {
  font-size: 12px;
  line-height: 1.4;
  padding: 12px 20px 0;
}

.zone-card-example {
  font-size: 12px;
  line-height: 1.4;
  padding: 12px 20px 16px;
  border-top: none;
  color: #444;
}

.zone-card-example strong {
  font-weight: 700;
  color: var(--black);
}

/* --- Dot Tooltip --- */
.dot-tooltip {
  position: fixed;
  z-index: 300;
  background: var(--black);
  color: var(--white);
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  padding: 6px 10px;
  max-width: 220px;
  line-height: 1.4;
  pointer-events: none;
}

/* --- Info Modal --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(17,17,17,0.6);
  z-index: 400;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal {
  background: var(--white);
  border: var(--border);
  max-width: 560px;
  width: 100%;
  max-height: 85vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 6px 6px 0 var(--black);
}

.modal-titlebar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: var(--border);
  padding: 8px 14px;
  flex-shrink: 0;
}

.modal-title {
  font-family: 'Inter', sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.modal-close {
  background: none;
  border: var(--border);
  width: 28px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.2rem;
  line-height: 1;
}

.modal-close:hover {
  background: var(--light-gray);
}

.modal-body {
  padding: 24px;
  overflow-y: auto;
  font-size: 0.875rem;
  line-height: 1.65;
}

.modal-body h2 {
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--orange);
  margin: 20px 0 10px;
}

.modal-body h2:first-child {
  margin-top: 0;
}

.modal-body h3 {
  font-size: 0.85rem;
  font-weight: 700;
  margin: 14px 0 6px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.modal-body p {
  margin-bottom: 12px;
}

.modal-body ul {
  padding-left: 18px;
  margin-bottom: 12px;
}

.modal-body li {
  margin-bottom: 6px;
}

.modal-footer-note {
  font-size: 0.78rem;
  color: var(--gray);
  border-top: 1px solid var(--light-gray);
  padding-top: 14px;
  margin-top: 16px;
  font-style: italic;
}

/* --- Loading Overlay --- */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(255,255,255,0.85);
  z-index: 350;
  display: flex;
  align-items: center;
  justify-content: center;
}

.loading-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.loading-spinner {
  width: 48px;
  height: 48px;
  border: 3px solid var(--light-gray);
  border-top-color: var(--orange);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.loading-text {
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  color: var(--gray);
  animation: flicker 1.5s step-end infinite;
}

/* --- Dot animations --- */
@keyframes dotStamp {
  0%   { transform: scale(0); opacity: 0; }
  40%  { transform: scale(1.25); opacity: 1; }
  65%  { transform: scale(0.95); }
  100% { transform: scale(1); opacity: 1; }
}

@keyframes dotActivePulse {
  0%, 100% { transform: scale(1); }
  50%       { transform: scale(1.15); }
}

@keyframes dotPulse {
  0%   { r: 12; opacity: 0.5; }
  100% { r: 32; opacity: 0; }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes flicker {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes cardIn {
  from { opacity: 0; transform: scale(0.96); }
  to { opacity: 1; transform: scale(1); }
}

/* Result dot SVG elements */
.result-dot {
  animation: dotStamp 0.6s ease-out forwards;
  transform-origin: center;
  transform-box: fill-box;
}

/* Active dot: entrance stamp then continuous gentle pulse */
.result-dot--active {
  animation:
    dotStamp 0.6s ease-out,
    dotActivePulse 2s ease-in-out 0.6s infinite;
  transform-origin: center;
  transform-box: fill-box;
}

.result-dot-pulse {
  animation: dotPulse 0.9s ease-out forwards;
  transform-origin: center;
  transform-box: fill-box;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .main-layout {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto;
  }

  .left-panel {
    border-right: none;
    border-bottom: var(--border);
    padding: 20px 16px;
  }

  .chart-section {
    padding: 20px 16px;
    order: -1;
  }

  .axis-label-y {
    left: -32px;
  }

  /* Disable dragging on tablet/mobile */
  .window-titlebar {
    cursor: default;
  }
}

/* --- Mobile (900px and below) --- */
@media (max-width: 900px) {

  /* Header: smaller, compact */
  .site-header {
    padding: 10px 16px;
    margin: 10px 10px 0 10px;
    box-shadow: 3px 3px 0px 0px #EE4413;
  }

  .site-title {
    font-size: 18px;
  }

  .info-btn {
    font-size: 12px;
  }

  /* Main layout: single column, chart first, left panel below */
  .main-layout {
    display: flex !important;
    flex-direction: column !important;
    height: auto !important;
    overflow: visible !important;
  }

  /* Chart appears first (top), zero gap from header */
  .chart-section {
    order: -1 !important;
    padding: 0 4px !important;
    margin: 0 !important;
    height: auto !important;
    min-height: 80vw;
    display: block !important;
    align-items: unset !important;
    justify-content: unset !important;
  }

  /* Chart fills available width, height driven by aspect ratio */
  .chart-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    min-height: unset !important;
    display: block !important;
    align-items: unset !important;
    justify-content: unset !important;
  }

  /* SVG: width-driven, height auto from viewBox aspect ratio */
  .flow-chart {
    width: 100% !important;
    height: auto !important;
    max-width: none !important;
    max-height: none !important;
    display: block !important;
  }

  /* Left panel (intro + input) appears below chart */
  .left-panel {
    order: 1;
    padding: 16px 16px;
    border-right: none;
    border-bottom: none;
    border-top: var(--border);
    gap: 16px;
  }


  /* Input window: not draggable, full width, fixed in flow */
  .window {
    position: static !important;
    width: 100% !important;
    left: auto !important;
    top: auto !important;
    z-index: auto !important;
    box-shadow: 3px 3px 0px 0px #EE4413;
  }

  /* Result card: not draggable, full width */
  .result-card {
    position: static !important;
    width: 100% !important;
    left: auto !important;
    top: auto !important;
    z-index: auto !important;
    box-shadow: 3px 3px 0px 0px #EE4413;
  }

  /* Zone labels */
  .zone-label {
    font-size: 24px !important;
    font-weight: 700 !important;
  }

  .zone-sublabel {
    font-size: 15px !important;
  }

  /* Axis labels (HIGH/LOW COMPLEXITY etc.) */
  #axisLayer text {
    font-size: 14px !important;
  }

  /* Zone hover card on mobile: full centered modal overlay */
  .zone-card {
    position: fixed !important;
    top: 50% !important;
    left: 50% !important;
    transform: translate(-50%, -50%) !important;
    max-width: calc(100vw - 48px) !important;
    min-width: 260px;
    z-index: 500;
    pointer-events: auto;
  }

  /* Semi-transparent backdrop for mobile zone card */
  .zone-card-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 499;
  }

  /* Prevent horizontal overflow */
  body {
    overflow-x: hidden;
  }

  .main-layout {
    overflow-x: hidden;
  }
}