/* ═══════════════════════════════════════════════════════════════════
   css/app.css — Digital Hirschberg Web
   No external dependencies. Modern CSS with custom properties.
   ═══════════════════════════════════════════════════════════════════ */

/* ─── Design tokens ─────────────────────────────────────────────────── */
:root {
  --color-bg:         #0f1117;
  --color-surface:    #1a1e2a;
  --color-surface-2:  #242836;
  --color-border:     #2e3347;
  --color-text:       #e4e8f4;
  --color-text-muted: #aab4d2;

  /* Clinical marker colours */
  --color-cornea: #00e676;
  --color-pupil:  #ffee58;
  --color-glint:  #f50057;
  --color-lid:    #00bcd4;
  --color-lid-lower: #ff9800;

  /* Action colours */
  --color-primary:   #4a90e2;
  --color-accent:    #7c3aed;
  --color-success:   #16a34a;
  --color-warning:   #d97706;
  --color-danger:    #dc2626;
  --color-info:      #0891b2;

  --radius:      8px;
  --radius-sm:   4px;
  --radius-pill: 999px;
  --shadow:      0 2px 8px rgba(0,0,0,.45);
  --transition:  120ms ease;

  /* Layout */
  --left-col-min:  380px;
  --left-col-max:  900px;
  --right-col:     340px;
  --toolbar-h:     48px;
  --header-h:      52px;
  --footer-h:      36px;
  --status-h:      28px;
  --canvas-ctrl-h: 52px;
}

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

html { height: 100%; font-size: 14px; }

body {
  height: 100%;
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: system-ui, -apple-system, 'Segoe UI', sans-serif;
  line-height: 1.5;
  overflow-x: hidden;
}

/* ─── Disclaimer ─────────────────────────────────────────────────────── */
.disclaimer {
  background: #78350f;
  color: #fef3c7;
  padding: 8px 48px 8px 16px;
  font-size: 12px;
  position: relative;
  text-align: center;
  flex-shrink: 0;
}
.disclaimer__close {
  position: absolute; right: 10px; top: 50%;
  transform: translateY(-50%);
  background: none; border: none; color: inherit;
  font-size: 18px; cursor: pointer; line-height: 1;
  opacity: .8;
}
.disclaimer__close:hover { opacity: 1; }

/* ─── Header ─────────────────────────────────────────────────────────── */
.app-header {
  height: var(--header-h);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex; align-items: center; gap: 12px;
  padding: 0 20px;
  flex-shrink: 0;
}
.app-title { font-size: 18px; font-weight: 700; color: var(--color-primary); }
.app-subtitle { color: var(--color-text-muted); font-weight: 400; }
.app-version { margin-left: auto; font-size: 11px; color: var(--color-text-muted); }

/* ─── Main layout ────────────────────────────────────────────────────── */
.app-layout {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr var(--right-col);
  grid-template-rows: 1fr;
  min-height: 0;
  overflow: hidden;
}

/* ─── Left column ────────────────────────────────────────────────────── */
.col-left {
  display: grid;
  grid-template-rows: auto 1fr auto auto;
  /* toolbar | canvas-wrapper | canvas-controls | status-bar */
  min-width: 0;
  min-height: 0;
  border-right: 1px solid var(--color-border);
  background: var(--color-bg);
}

/* Toolbar */
.toolbar {
  height: var(--toolbar-h);
  display: flex; align-items: center; gap: 8px;
  padding: 0 12px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
  flex-wrap: wrap;
}

/* Canvas wrapper */
.canvas-wrapper {
  flex: 1;
  min-height: 0;
  position: relative;
  background: #0a0a0a;
  overflow: hidden;
}
#main-canvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: crosshair;
  outline: none;
}
#main-canvas:focus {
  box-shadow: inset 0 0 0 2px var(--color-primary);
}

/* Canvas controls (zoom, brightness) */
.canvas-controls {
  min-height: var(--canvas-ctrl-h);
  display: flex; align-items: center; gap: 20px;
  padding: 6px 14px;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  flex-shrink: 0;
  flex-wrap: wrap;
}
.slider-label {
  display: flex; align-items: center; gap: 8px;
  font-size: 12px; color: var(--color-text-muted);
}
.slider-label input[type="range"] {
  width: 120px;
  accent-color: var(--color-primary);
  cursor: pointer;
}
#slider-zoom {
  width: 280px;
}
.slider-value {
  min-width: 40px;
  font-size: 12px;
  color: var(--color-text);
  font-variant-numeric: tabular-nums;
}

/* Status bar */
.status-bar {
  height: var(--status-h);
  padding: 0 12px;
  background: var(--color-surface-2);
  border-top: 1px solid var(--color-border);
  display: flex; align-items: center;
  font-size: 12px; color: var(--color-text-muted);
  flex-shrink: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ─── Right column ───────────────────────────────────────────────────── */
.col-right {
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  background: var(--color-surface);
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
}
.col-right::-webkit-scrollbar { width: 6px; }
.col-right::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 3px; }

/* ─── Panels ─────────────────────────────────────────────────────────── */
.panel {
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-border);
}
.panel-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
  letter-spacing: .03em;
}
.panel-title--toggle {
  cursor: pointer;
  user-select: none;
  display: flex; align-items: center; justify-content: space-between;
}
.panel-title--toggle:hover { color: #6baee8; }
.collapse-icon { font-size: 12px; transition: transform var(--transition); }
.panel--collapsed .collapse-icon { transform: rotate(-90deg); }
.panel--collapsed .panel-body { display: none; }

/* ─── Form elements ──────────────────────────────────────────────────── */
.form-row { margin-bottom: 12px; }
.form-row--check { display: flex; align-items: flex-start; gap: 8px; margin-bottom: 0; }
.form-row--check input[type="checkbox"] { margin-top: 2px; accent-color: var(--color-primary); }
.form-label {
  display: block;
  font-size: 12px;
  color: var(--color-text-muted);
  margin-bottom: 4px;
}
.form-hint { display: block; font-size: 11px; color: var(--color-text-muted); opacity: .7; }
.form-input {
  width: 100%;
  padding: 6px 10px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 13px;
  outline: none;
  transition: border-color var(--transition);
}
.form-input:focus { border-color: var(--color-primary); }
.form-input::-webkit-inner-spin-button { opacity: .6; }

/* ─── Buttons ────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 5px;
  padding: 6px 14px;
  border: none; border-radius: var(--radius-sm);
  font-size: 12px; font-weight: 500; cursor: pointer;
  white-space: nowrap;
  transition: opacity var(--transition), filter var(--transition);
  text-decoration: none;
  line-height: 1.4;
}
.btn:hover:not(:disabled) { filter: brightness(1.15); }
.btn:active:not(:disabled) { filter: brightness(.9); }
.btn:disabled { opacity: .4; cursor: not-allowed; }
.btn--primary  { background: var(--color-primary); color: #fff; }
.btn--secondary{ background: var(--color-surface-2); color: var(--color-text); border: 1px solid var(--color-border); }
.btn--accent   { background: var(--color-accent); color: #fff; }
.btn--success  { background: var(--color-success); color: #fff; }
.btn--warning  { background: var(--color-warning); color: #fff; }
.btn--danger   { background: var(--color-danger); color: #fff; }
.btn--ghost    { background: transparent; color: var(--color-text-muted); border: 1px solid var(--color-border); }
.btn--full     { width: 100%; margin-top: 10px; }
.btn[hidden]   { display: none; }

/* ─── Step buttons ───────────────────────────────────────────────────── */
.step-buttons {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin-bottom: 12px;
}
.step-btn {
  flex: 1; min-width: 80px;
  background: var(--color-surface-2);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 8px 10px;
  font-size: 12px;
  transition: all var(--transition);
}
.step-btn--active, .step-btn[aria-pressed="true"] {
  color: #fff;
  border-color: transparent;
  filter: brightness(1.05);
}
.step-btn--cornea.step-btn--active { background: #006929; border-color: var(--color-cornea); }
.step-btn--pupil.step-btn--active  { background: #7a6800; border-color: var(--color-pupil);  }
.step-btn--glint.step-btn--active  { background: #8b0022; border-color: var(--color-glint);  }
.step-btn--lid.step-btn--active    { background: #014752; border-color: var(--color-lid);    }
.step-btn--lid-lower.step-btn--active { background: #5d2f00; border-color: var(--color-lid-lower); }

.step-dot {
  display: inline-block;
  width: 10px; height: 10px;
  border-radius: 50%;
  margin-right: 4px;
}
.step-dot--cornea { background: var(--color-cornea); }
.step-dot--pupil  { background: var(--color-pupil);  }
.step-dot--glint  { background: var(--color-glint);  }
.step-dot--lid    { background: var(--color-lid);    }
.step-dot--lid-lower { background: var(--color-lid-lower); }

.step-label {
  font-size: 12px;
  color: var(--color-text);
  padding: 8px 10px;
  background: var(--color-surface-2);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--color-primary);
  line-height: 1.5;
}

/* Auto-adjust status */
.auto-adjust-status {
  margin-top: 10px;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  min-height: 28px;
}
.auto-adjust-status--idle    { display: none; }
.auto-adjust-status--running { background: #1e3a5f; color: #93c5fd; }
.auto-adjust-status--done    { background: #14532d; color: #86efac; }
.auto-adjust-status--error   { background: #450a0a; color: #fca5a5; }

/* ─── Loading overlay ────────────────────────────────────────────────── */
.loading-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(10, 12, 20, 0.55);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}
.loading-overlay[hidden] { display: none; }
.loading-overlay__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 28px 36px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.45);
}
.loading-overlay__text {
  margin: 0;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
}
.loading-spinner {
  width: 44px;
  height: 44px;
  border: 4px solid var(--color-border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: loading-spinner-spin 0.8s linear infinite;
}
@keyframes loading-spinner-spin {
  to { transform: rotate(360deg); }
}

/* ─── Help ───────────────────────────────────────────────────────────── */
.help-list {
  list-style: none;
  font-size: 12px;
  color: var(--color-text-muted);
  line-height: 2;
}
.help-list strong { color: var(--color-text); }
.help-note {
  font-size: 11px;
  color: var(--color-text-muted);
  margin-top: 8px;
  opacity: .8;
}

/* ─── Report table ───────────────────────────────────────────────────── */
.report-container {
  max-height: 480px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
}
.report-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}
.report-table td, .report-table th {
  padding: 5px 8px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}
.report-row:hover td { background: var(--color-surface-2); }
.report-label  { color: var(--color-text-muted); width: 55%; }
.report-value  { color: var(--color-text); font-variant-numeric: tabular-nums; }
.report-section th {
  background: var(--color-surface-2);
  color: var(--color-primary);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding-top: 9px;
}
.report-notes td {
  font-size: 11px;
  color: var(--color-text-muted);
  padding: 8px;
  font-style: italic;
  border-bottom: none;
}
.report-timestamp {
  font-size: 10px;
  color: var(--color-text-muted);
  text-align: right;
  padding: 6px 0 2px;
}
.report-empty {
  font-size: 12px;
  color: var(--color-text-muted);
  padding: 16px 0;
  text-align: center;
}

/* Row quality flags */
.report-row--ok   .report-value { color: var(--color-success); }
.report-row--warn .report-value { color: var(--color-warning); }
.report-row--info .report-value { color: var(--color-info); }

/* ─── Tropia pills ───────────────────────────────────────────────────── */
.tropia-pill {
  display: inline-block;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 700;
}
.tropia-pill--endo  { background: #1e3a5f80; color: #93c5fd; border: 1px solid #3b82f6; }
.tropia-pill--exo   { background: #4a1d9680; color: #c4b5fd; border: 1px solid #8b5cf6; }
.tropia-pill--hyper { background: #7f1d1d80; color: #fca5a5; border: 1px solid #ef4444; }
.tropia-pill--hypo  { background: #78350f80; color: #fdba74; border: 1px solid #f97316; }
.tropia-pill--none  { background: #14532d80; color: #86efac; border: 1px solid #22c55e; }

/* ─── Footer ─────────────────────────────────────────────────────────── */
.app-footer {
  height: var(--footer-h);
  display: flex; align-items: center; justify-content: center;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  font-size: 11px;
  color: var(--color-text-muted);
  flex-shrink: 0;
}
.app-footer a { color: var(--color-primary); text-decoration: none; }
.app-footer a:hover { text-decoration: underline; }

/* ─── Responsive — tablet / mobile ──────────────────────────────────── */
@media (max-width: 800px) {
  .app-layout {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
    overflow: auto;
    height: auto;
  }

  .col-left {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }

  .canvas-wrapper {
    height: 55vw;
    min-height: 260px;
    max-height: 480px;
  }

  .col-right {
    overflow-y: visible;
    height: auto;
  }

  .toolbar {
    height: auto;
    padding: 8px;
    flex-wrap: wrap;
    gap: 6px;
  }

  .step-buttons { flex-direction: column; }
  .step-btn     { flex: unset; }

  .canvas-controls {
    height: auto;
    flex-wrap: wrap;
    padding: 8px 14px;
    gap: 12px;
  }

  .slider-label input[type="range"] { width: 100px; }
  #slider-zoom { width: 200px; }

  .report-container { max-height: none; }
}

@media (max-width: 480px) {
  .app-header { padding: 0 12px; }
  .app-title  { font-size: 15px; }
  .panel      { padding: 12px; }
}

/* ─── Focus styles (accessibility) ──────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ─── Info Modal ─────────────────────────────────────────────────────── */
.info-modal {
  position: fixed; inset: 0;
  z-index: 9000;
  display: flex; align-items: center; justify-content: center;
  padding: 16px;
}
.info-modal[hidden] { display: none; }

.info-modal__backdrop {
  position: absolute; inset: 0;
  background: rgba(0,0,0,.72);
  backdrop-filter: blur(3px);
  cursor: pointer;
}

.info-modal__panel {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 740px;
  max-height: 88vh;
  display: flex; flex-direction: column;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  box-shadow: 0 24px 64px rgba(0,0,0,.6);
  overflow: hidden;
}

.info-modal__header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px 14px;
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}
.info-modal__title {
  font-size: 16px; font-weight: 700;
  color: var(--color-primary);
  margin: 0;
}
.info-modal__close {
  background: none; border: none;
  color: var(--color-text-muted);
  font-size: 22px; line-height: 1;
  cursor: pointer; padding: 0 4px;
  transition: color var(--transition);
}
.info-modal__close:hover { color: var(--color-text); }

.info-modal__body {
  flex: 1;
  overflow-y: auto;
  padding: 24px 28px;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--color-text);
}
.info-modal__body::-webkit-scrollbar { width: 6px; }
.info-modal__body::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 3px; }

/* Markdown rendered content */
.info-modal__body h1 {
  font-size: 22px; font-weight: 800;
  color: var(--color-primary);
  margin: 0 0 6px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}
.info-modal__body h2 {
  font-size: 15px; font-weight: 700;
  color: var(--color-text);
  margin: 28px 0 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--color-border);
}
.info-modal__body h3 {
  font-size: 13px; font-weight: 700;
  color: var(--color-primary);
  margin: 20px 0 8px;
}
.info-modal__body p {
  margin: 0 0 12px;
  color: var(--color-text-muted);
}
.info-modal__body ul, .info-modal__body ol {
  margin: 0 0 14px 20px;
  color: var(--color-text-muted);
}
.info-modal__body li { margin-bottom: 4px; }
.info-modal__body strong { color: var(--color-text); }
.info-modal__body em { opacity: .85; }
.info-modal__body code {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 1px 6px;
  font-size: 12px;
  font-family: 'Cascadia Code', 'Fira Code', Consolas, monospace;
  color: #93c5fd;
}
.info-modal__body pre {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 14px 16px;
  font-size: 12px;
  font-family: 'Cascadia Code', 'Fira Code', Consolas, monospace;
  overflow-x: auto;
  margin: 0 0 16px;
  line-height: 1.6;
  color: var(--color-text);
  white-space: pre-wrap;
  word-break: break-word;
}
.info-modal__body pre code {
  background: none; border: none; padding: 0; font-size: inherit;
}
.info-modal__body hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 24px 0;
}
.info-modal__body table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 16px;
  font-size: 12.5px;
}
.info-modal__body th, .info-modal__body td {
  padding: 7px 12px;
  border: 1px solid var(--color-border);
  text-align: left;
}
.info-modal__body th {
  background: var(--color-surface-2);
  color: var(--color-primary);
  font-weight: 600;
}
.info-modal__body blockquote {
  border-left: 3px solid var(--color-primary);
  margin: 0 0 14px;
  padding: 8px 14px;
  background: var(--color-surface-2);
  border-radius: 0 6px 6px 0;
  color: var(--color-text-muted);
  font-style: italic;
}
.info-modal__body .modal-loading {
  text-align: center;
  color: var(--color-text-muted);
  padding: 40px 0;
}

/* ─── Scrollbars (Webkit) ────────────────────────────────────────────── */
::-webkit-scrollbar        { width: 6px; height: 6px; }
::-webkit-scrollbar-track  { background: transparent; }
::-webkit-scrollbar-thumb  { background: var(--color-border); border-radius: 3px; }

/* ════════════════════════════════════════════════════════════════════════
   WIZARD — full-focus, one screen at a time
   ════════════════════════════════════════════════════════════════════════ */

.app-main {
  flex: 1;
  min-height: 0;
  display: flex;
  position: relative;
  overflow: hidden;
}

.screen {
  display: none;
  flex: 1;
  min-height: 0;
  width: 100%;
  flex-direction: column;
}
.screen.screen--active { display: flex; }
.screen[hidden] { display: none; }

/* ─── Language switch ─────────────────────────────────────────────────── */
.lang-switch {
  display: inline-flex;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  overflow: hidden;
}
.app-header .lang-switch { margin-left: auto; }
.app-header .app-version { margin-left: 12px; }
.lang-btn {
  background: transparent;
  color: var(--color-text-muted);
  border: none;
  padding: 5px 14px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}
.lang-btn:hover { color: var(--color-text); }
.lang-btn--active { background: var(--color-primary); color: #fff; }
.lang-switch--hero .lang-btn { padding: 9px 22px; font-size: 14px; }

/* ─── Buttons: extra sizes ────────────────────────────────────────────── */
.btn--sm   { padding: 4px 10px; font-size: 11px; }
.btn--hero { padding: 14px 30px; font-size: 16px; border-radius: var(--radius); }

/* ─── Wizard nav bar ──────────────────────────────────────────────────── */
.wizard-nav {
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: flex-end;
  padding: 14px 24px;
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  flex-shrink: 0;
}
#btn-cal-back, #btn-mark-back, #btn-result-back { margin-right: auto; }
.wizard-nav .btn { padding: 9px 20px; font-size: 13px; }

/* ─── Screen 1 · Load (hero) ──────────────────────────────────────────── */
.screen--load .screen-load__inner {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 18px;
  padding: 40px 24px;
  max-width: 700px;
  margin: 0 auto;
  width: 100%;
}
.hero-title {
  font-size: 30px;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.01em;
}
.hero-intro {
  font-size: 15px;
  color: var(--color-text-muted);
  max-width: 560px;
  line-height: 1.65;
}
.hero-steps {
  list-style: none;
  counter-reset: step;
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: left;
  max-width: 520px;
  width: 100%;
  margin: 4px 0;
}
.hero-steps li {
  counter-increment: step;
  position: relative;
  padding: 4px 0 4px 42px;
  color: var(--color-text);
  font-size: 13.5px;
  line-height: 1.5;
}
.hero-steps li::before {
  content: counter(step);
  position: absolute;
  left: 0; top: 2px;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 13px;
}
.hero-hint { font-size: 12px; color: var(--color-text-muted); opacity: .8; }
.hero-status { font-size: 12px; color: var(--color-warning); min-height: 16px; }

/* ─── Screens 2 & 4 · Calibrate / Result (centered card + nav) ─────────── */
.screen-form__inner, .screen-result__inner {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 32px 24px;
  max-width: 560px;
  margin: 0 auto;
  width: 100%;
}
/* The final summary spans the full width. */
.screen-result__inner { max-width: none; padding: 28px 32px; }
.screen-heading {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}
.screen-intro {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 24px;
  line-height: 1.6;
}
.screen--form .form-row { margin-bottom: 20px; }
.screen--form .form-label { font-size: 13px; margin-bottom: 6px; }
.screen--form .form-input { max-width: 200px; }
.screen--result .report-container { max-height: none; }

/* ─── Screen 3 · Mark (the photo is the protagonist) ──────────────────── */
/* Wide screens: two panes — canvas fills all space, guidance in a side rail. */
.screen--mark { flex-direction: row; min-height: 0; }

.mark-stage {
  flex: 1;
  min-width: 0;
  min-height: 0;
  display: flex;
  background: #0a0a0a;
}
.mark-stage .canvas-wrapper { flex: 1; min-width: 0; min-height: 0; }

.mark-side {
  width: 340px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border-left: 1px solid var(--color-border);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
}

.mark-header {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 18px 18px 16px;
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

/* Step indicator: one segment per step (done / active / upcoming) */
.mark-progress { display: flex; gap: 6px; }
.mark-pip {
  flex: 1;
  height: 5px;
  border-radius: var(--radius-pill);
  background: var(--color-border);
  transition: background var(--transition);
}
.mark-pip--done   { background: var(--color-success); }
.mark-pip--active { background: var(--color-primary); }
.mark-header__text { min-width: 0; }
.mark-counter {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 3px;
}
.mark-title {
  font-size: 19px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 6px;
}
.mark-instr {
  font-size: 13.5px;
  color: var(--color-text);
  line-height: 1.6;
}
.mark-action { width: 100%; }

.mark-warning {
  margin: 14px 18px 0;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: #450a0a;
  color: #fca5a5;
  border: 1px solid #7f1d1d;
  font-size: 12.5px;
  line-height: 1.5;
  flex-shrink: 0;
}
.mark-warning[hidden] { display: none; }

.mark-side .auto-adjust-status { margin: 12px 18px 0; flex-shrink: 0; }

/* Controls + nav sit at the bottom of the rail. */
.mark-side .canvas-controls {
  flex-direction: column;
  align-items: stretch;
  gap: 14px;
  padding: 16px 18px;
  height: auto;
  margin-top: auto;
  border-top: 1px solid var(--color-border);
}
.mark-side .slider-label { justify-content: space-between; }
.mark-side .slider-label input[type="range"] { flex: 1; width: auto; }
.mark-side #slider-zoom { width: auto; }
.canvas-controls__buttons { display: flex; flex-wrap: wrap; gap: 8px; }
.mark-side .wizard-nav { flex-shrink: 0; }

/* ─── Wizard responsive ───────────────────────────────────────────────── */
@media (max-width: 800px) {
  .hero-title { font-size: 24px; }
  /* Stack: photo on top (still large), guidance below; the screen scrolls. */
  .screen--mark { flex-direction: column; overflow-y: auto; }
  .mark-stage {
    flex: none;
    height: 62vw;
    min-height: 260px;
    max-height: 68vh;
  }
  .mark-side {
    width: auto;
    border-left: none;
    border-top: 1px solid var(--color-border);
    overflow-y: visible;
  }
  .mark-title { font-size: 17px; }
  .mark-side .canvas-controls { margin-top: 0; }
  .wizard-nav { padding: 12px 16px; flex-wrap: wrap; }
  .screen-form__inner, .screen-result__inner { padding: 24px 16px; }
}

@media (max-width: 480px) {
  .app-header { padding: 0 12px; }
  .app-title  { font-size: 15px; }
  .lang-switch--hero .lang-btn { padding: 8px 16px; }
  .wizard-nav .btn { flex: 1; }
  #btn-cal-back, #btn-mark-back, #btn-result-back { margin-right: 0; }
}