/**
 * DSR-Calculator Stylesheet — finanzen.ai
 * Plugin: FAI Deflated Sharpe Ratio Calculator
 * Version: 1.0.0
 *
 * Naming-Konvention: Alle Klassen mit `fai-dsr-` Präfix für vollständige
 * Kapselung und Zero-Kollision mit Theme-Styles.
 *
 * Dark-Theme: Hintergrund #0F172A / #1E293B
 * Akzente: Cyan #06B6D4 | Indigo #4F46E5 | Grün #10B981 | Amber #F59E0B | Rot #EF4444
 */

/* ═══════════════════════════════════════════════════════════════════════════
   CUSTOM PROPERTIES (Design Tokens)
   ═══════════════════════════════════════════════════════════════════════════ */

.fai-dsr-wrapper {
  /* Farben */
  --dsr-bg-base:        #0F172A;
  --dsr-bg-card:        #1E293B;
  --dsr-bg-elevated:    #263548;
  --dsr-bg-input:       #131F33;
  --dsr-border:         rgba(148, 163, 184, 0.18);
  --dsr-border-focus:   #06B6D4;

  --dsr-cyan:           #06B6D4;
  --dsr-cyan-dim:       rgba(6, 182, 212, 0.15);
  --dsr-indigo:         #4F46E5;
  --dsr-indigo-dim:     rgba(79, 70, 229, 0.15);

  --dsr-green:          #10B981;
  --dsr-green-dim:      rgba(16, 185, 129, 0.12);
  --dsr-amber:          #F59E0B;
  --dsr-amber-dim:      rgba(245, 158, 11, 0.12);
  --dsr-red:            #EF4444;
  --dsr-red-dim:        rgba(239, 68, 68, 0.12);

  --dsr-text-primary:   #F1F5F9;
  --dsr-text-secondary: #94A3B8;
  --dsr-text-muted:     #64748B;

  /* Typografie */
  --dsr-font:           system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --dsr-font-mono:      'JetBrains Mono', 'Fira Code', 'Cascadia Code', Consolas, monospace;

  /* Abstände */
  --dsr-space-xs:       0.375rem;
  --dsr-space-sm:       0.625rem;
  --dsr-space-md:       1rem;
  --dsr-space-lg:       1.5rem;
  --dsr-space-xl:       2rem;
  --dsr-space-2xl:      2.5rem;

  /* Radien */
  --dsr-radius-sm:      0.375rem;
  --dsr-radius-md:      0.625rem;
  --dsr-radius-lg:      1rem;
  --dsr-radius-xl:      1.25rem;
  --dsr-radius-full:    9999px;

  /* Schatten */
  --dsr-shadow-sm:      0 1px 3px rgba(0, 0, 0, 0.4);
  --dsr-shadow-md:      0 4px 16px rgba(0, 0, 0, 0.4);
  --dsr-shadow-lg:      0 8px 32px rgba(0, 0, 0, 0.5);
  --dsr-shadow-glow-c:  0 0 24px rgba(6, 182, 212, 0.2);
  --dsr-shadow-glow-i:  0 0 24px rgba(79, 70, 229, 0.2);

  /* Übergänge */
  --dsr-transition:     150ms ease;
  --dsr-transition-med: 250ms ease;
}

/* ═══════════════════════════════════════════════════════════════════════════
   WRAPPER / CARD
   ═══════════════════════════════════════════════════════════════════════════ */

.fai-dsr-wrapper {
  background: var(--dsr-bg-card);
  border: 1px solid var(--dsr-border);
  border-radius: var(--dsr-radius-xl);
  color: var(--dsr-text-primary);
  font-family: var(--dsr-font);
  font-size: 0.9375rem;
  line-height: 1.6;
  margin: var(--dsr-space-xl) auto;
  max-width: none;
  width: 100%;
  box-sizing: border-box;
  overflow: hidden;
  box-shadow: var(--dsr-shadow-lg);

  /* Isolierter Stacking-Context */
  position: relative;
  isolation: isolate;
}

/* Hintergrund-Gradient-Deko */
.fai-dsr-wrapper::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 40% at 15% 0%, rgba(79, 70, 229, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 50% 30% at 85% 100%, rgba(6, 182, 212, 0.06) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}

.fai-dsr-wrapper > * {
  position: relative;
  z-index: 1;
}

/* ═══════════════════════════════════════════════════════════════════════════
   BODY / INPUTS GRID
   ═══════════════════════════════════════════════════════════════════════════ */

.fai-dsr-body {
  padding: var(--dsr-space-xl) var(--dsr-space-xl) var(--dsr-space-lg);
}

.fai-dsr-title {
  margin: 0.75rem 0 2.25rem 0;
  font-size: 1.625rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.35;
}

.fai-dsr-inputs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--dsr-space-lg) 3rem;
  align-items: start;
}

/* ═══════════════════════════════════════════════════════════════════════════
   FORMULAR-FELDER
   ═══════════════════════════════════════════════════════════════════════════ */

.fai-dsr-field {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 0;
  width: 100%;
  box-sizing: border-box;
}

.fai-dsr-label {
  display: flex;
  align-items: center;
  gap: 0.4em;
  font-size: 0.8125rem;
  font-weight: 600;
  color: #E2E8F0;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  cursor: default;
  margin-bottom: 0.15rem;
}

.fai-dsr-hint {
  font-size: 0.8125rem;
  color: #94A3B8;
  line-height: 1.45;
  margin-top: 0.15rem;
}

/* Basis-Input */
.fai-dsr-wrapper .fai-dsr-input {
  background: var(--dsr-bg-input) !important;
  border: 1px solid var(--dsr-border) !important;
  border-radius: var(--dsr-radius-md);
  color: var(--dsr-text-primary) !important;
  font-family: var(--dsr-font-mono);
  font-size: 1.125rem;
  font-weight: 500;
  padding: 0.6em 0.75em;
  text-align: center;
  transition: border-color var(--dsr-transition), box-shadow var(--dsr-transition), background-color var(--dsr-transition);
  width: 100%;
  box-sizing: border-box;
  -moz-appearance: textfield; /* Firefox: Spinner ausblenden */
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.35);
}

.fai-dsr-wrapper .fai-dsr-input::-webkit-inner-spin-button,
.fai-dsr-wrapper .fai-dsr-input::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.fai-dsr-wrapper .fai-dsr-input:focus {
  outline: none;
  border-color: var(--dsr-border-focus) !important;
  background: #17243A !important;
  box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.25), inset 0 1px 2px rgba(0, 0, 0, 0.3) !important;
}

.fai-dsr-wrapper .fai-dsr-input.fai-dsr-input--small {
  width: 5.2rem !important;
  min-width: 5.2rem !important;
  max-width: 5.2rem !important;
  flex: 0 0 5.2rem !important;
  text-align: center !important;
  font-size: 0.9375rem;
  padding: 0.6em 0.55em !important;
}

.fai-dsr-wrapper .fai-dsr-input.fai-dsr-input--medium {
  width: 4.5rem !important;
  min-width: 4.5rem !important;
  max-width: 4.5rem !important;
  flex: 0 0 4.5rem !important;
  text-align: center !important;
  font-size: 0.9375rem;
  padding: 0.6em 0.55em !important;
}

/* Select */
.fai-dsr-wrapper select.fai-dsr-select,
.fai-dsr-select {
  background-color: var(--dsr-bg-input) !important;
  border: 1px solid var(--dsr-border) !important;
  border-radius: var(--dsr-radius-md);
  color: #FFFFFF !important;
  font-family: var(--dsr-font);
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 0.65em 2.8em 0.65em 0.85em !important;
  cursor: pointer;
  transition: border-color var(--dsr-transition), box-shadow var(--dsr-transition), background-color var(--dsr-transition);
  appearance: none !important;
  -webkit-appearance: none !important;
  -moz-appearance: none !important;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2338BDF8' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E") !important;
  background-repeat: no-repeat !important;
  background-position: calc(100% - 12px) center !important;
  background-size: 18px 18px !important;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.35);
}

.fai-dsr-wrapper select.fai-dsr-select option,
.fai-dsr-select option {
  background-color: #0F172A !important;
  color: #FFFFFF !important;
}

.fai-dsr-select--full {
  width: 100%;
  box-sizing: border-box;
}

.fai-dsr-wrapper select.fai-dsr-select:focus,
.fai-dsr-select:focus {
  outline: none;
  border-color: var(--dsr-border-focus) !important;
  background-color: #17243A !important;
  color: #FFFFFF !important;
  box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.25), inset 0 1px 2px rgba(0, 0, 0, 0.3) !important;
}

/* Slider-Zeile */
.fai-dsr-slider-row {
  display: flex;
  align-items: center;
  gap: var(--dsr-space-sm);
  width: 100%;
  max-width: 100%;
  min-width: 0;
  box-sizing: border-box;
}

.fai-dsr-slider-row .fai-dsr-slider {
  flex: 1 1 auto;
  min-width: 0;
}

.fai-dsr-duration-row {
  display: flex;
  align-items: center;
  gap: var(--dsr-space-sm);
  width: 100%;
  max-width: 100%;
  min-width: 0;
  box-sizing: border-box;
}

.fai-dsr-duration-row .fai-dsr-input {
  flex: 0 0 5rem;
  width: 5rem;
}

.fai-dsr-duration-row .fai-dsr-select {
  flex: 1 1 auto;
  min-width: 0;
}

/* Slider */
.fai-dsr-slider {
  flex: 1 1 auto;
  min-width: 0;
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  border-radius: var(--dsr-radius-full);
  background: var(--dsr-bg-elevated);
  outline: none;
  cursor: pointer;
}

.fai-dsr-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--dsr-cyan), var(--dsr-indigo));
  cursor: pointer;
  box-shadow: 0 0 8px rgba(6, 182, 212, 0.5);
  transition: transform var(--dsr-transition), box-shadow var(--dsr-transition);
}

.fai-dsr-slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--dsr-cyan), var(--dsr-indigo));
  cursor: pointer;
  border: none;
  box-shadow: 0 0 8px rgba(6, 182, 212, 0.5);
}

.fai-dsr-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  box-shadow: 0 0 14px rgba(6, 182, 212, 0.7);
}

/* Tooltip-Button */
.fai-dsr-tooltip-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: rgba(148, 163, 184, 0.1);
  border: 1px solid rgba(148, 163, 184, 0.2);
  color: var(--dsr-text-muted);
  font-size: 0.6875rem;
  font-weight: 700;
  cursor: pointer;
  line-height: 1;
  padding: 0;
  transition: background var(--dsr-transition), color var(--dsr-transition);
  flex-shrink: 0;
  position: relative;
}

.fai-dsr-tooltip-btn:hover,
.fai-dsr-tooltip-btn:focus {
  background: var(--dsr-cyan-dim);
  color: var(--dsr-cyan);
  outline: none;
}

/* Tooltip-Popup */
.fai-dsr-tooltip-btn::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: #1E293B;
  border: 1px solid var(--dsr-border);
  border-radius: var(--dsr-radius-md);
  padding: 0.5em 0.75em;
  font-size: 0.75rem;
  font-weight: 400;
  line-height: 1.5;
  color: var(--dsr-text-secondary);
  text-transform: none;
  letter-spacing: 0;
  white-space: normal;
  width: 240px;
  max-width: 80vw;
  box-shadow: var(--dsr-shadow-md);
  z-index: 100;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--dsr-transition-med);
}

.fai-dsr-tooltip-btn:hover::after,
.fai-dsr-tooltip-btn:focus::after {
  opacity: 1;
}

/* ═══════════════════════════════════════════════════════════════════════════
   EXPERTEN-MODUS (details/summary Akkordeon)
   ═══════════════════════════════════════════════════════════════════════════ */

.fai-dsr-expert {
  margin-top: var(--dsr-space-lg);
  border: 1px solid var(--dsr-border);
  border-radius: var(--dsr-radius-lg);
  background: rgba(255, 255, 255, 0.02);
  overflow: hidden;
}

.fai-dsr-expert__toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5em;
  padding: var(--dsr-space-md) var(--dsr-space-lg);
  font-size: 0.875rem;
  font-weight: 600;
  color: #E2E8F0;
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: color var(--dsr-transition), background var(--dsr-transition);
}

.fai-dsr-expert__left {
  display: flex;
  align-items: center;
  gap: 0.6em;
}

.fai-dsr-expert__icon {
  flex-shrink: 0;
  color: var(--dsr-cyan);
}

.fai-dsr-expert__chevron {
  flex-shrink: 0;
  color: #38BDF8;
  transition: transform var(--dsr-transition-med);
}

.fai-dsr-expert__toggle::-webkit-details-marker {
  display: none;
}

.fai-dsr-expert__toggle::marker {
  display: none;
}

.fai-dsr-expert__toggle:hover {
  color: #FFFFFF;
  background: var(--dsr-cyan-dim);
}

.fai-dsr-expert[open] .fai-dsr-expert__toggle {
  color: var(--dsr-cyan);
  border-bottom: 1px solid var(--dsr-border);
}

/* Rotierender Pfeil rechts beim Öffnen */
.fai-dsr-expert[open] .fai-dsr-expert__chevron {
  transform: rotate(180deg);
}

.fai-dsr-expert__content {
  padding: var(--dsr-space-lg);
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--dsr-space-lg);
}

/* ═══════════════════════════════════════════════════════════════════════════
   ERGEBNIS-PANEL
   ═══════════════════════════════════════════════════════════════════════════ */

.fai-dsr-results {
  padding: var(--dsr-space-lg) var(--dsr-space-xl) var(--dsr-space-xl);
  border-top: 1px solid var(--dsr-border);
  display: flex;
  flex-direction: column;
  gap: var(--dsr-space-lg);
}

/* Score-Card */
.fai-dsr-score-card {
  background: var(--dsr-bg-elevated);
  border-radius: var(--dsr-radius-lg);
  border: 1px solid var(--dsr-border);
  padding: var(--dsr-space-lg) var(--dsr-space-xl);
  text-align: center;
  transition: border-color var(--dsr-transition-med), box-shadow var(--dsr-transition-med);
}

.fai-dsr-score-card--green  { border-color: rgba(16, 185, 129, 0.4); box-shadow: var(--dsr-shadow-glow-c); }
.fai-dsr-score-card--amber  { border-color: rgba(245, 158, 11, 0.4); }
.fai-dsr-score-card--red    { border-color: rgba(239, 68, 68, 0.4); }

.fai-dsr-score-card__label {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #E2E8F0;
  margin-bottom: 0.5em;
}

.fai-dsr-score-card__value {
  font-size: clamp(2rem, 6.4vw, 3.6rem);
  font-weight: 800;
  font-family: var(--dsr-font-mono);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 0.15em;
  background: linear-gradient(135deg, #E2E8F0, var(--dsr-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  transition: all var(--dsr-transition-med);
}

.fai-dsr-score-card__value--green  { background: linear-gradient(135deg, #6EE7B7, var(--dsr-green)); -webkit-background-clip: text; background-clip: text; }
.fai-dsr-score-card__value--amber  { background: linear-gradient(135deg, #FDE68A, var(--dsr-amber)); -webkit-background-clip: text; background-clip: text; }
.fai-dsr-score-card__value--red    { background: linear-gradient(135deg, #FCA5A5, var(--dsr-red));   -webkit-background-clip: text; background-clip: text; }

/* Score-Bar */
.fai-dsr-score-card__bar-wrap {
  margin: 0.25em auto 0.75em;
  max-width: 480px;
}

.fai-dsr-score-bar {
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--dsr-radius-full);
  height: 10px;
  overflow: hidden;
}

.fai-dsr-score-bar__fill {
  height: 100%;
  border-radius: var(--dsr-radius-full);
  width: 0%;
  transition: width 400ms cubic-bezier(0.4, 0, 0.2, 1), background 400ms ease;
  background: linear-gradient(90deg, var(--dsr-indigo), var(--dsr-cyan));
}

.fai-dsr-score-bar__fill--green { background: linear-gradient(90deg, #059669, var(--dsr-green)); }
.fai-dsr-score-bar__fill--amber { background: linear-gradient(90deg, #D97706, var(--dsr-amber)); }
.fai-dsr-score-bar__fill--red   { background: linear-gradient(90deg, #DC2626, var(--dsr-red)); }

.fai-dsr-score-card__verdict {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--dsr-text-secondary);
}

.fai-dsr-score-card__verdict--green { color: var(--dsr-green); }
.fai-dsr-score-card__verdict--amber { color: var(--dsr-amber); }
.fai-dsr-score-card__verdict--red   { color: var(--dsr-red); }

/* ── Metriken-Grid ── */
.fai-dsr-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--dsr-space-md);
}

.fai-dsr-metric {
  background: var(--dsr-bg-elevated);
  border: 1px solid var(--dsr-border);
  border-radius: var(--dsr-radius-lg);
  padding: var(--dsr-space-md);
  display: flex;
  gap: var(--dsr-space-sm);
  align-items: flex-start;
  transition: border-color var(--dsr-transition);
}

.fai-dsr-metric:hover {
  border-color: rgba(148, 163, 184, 0.25);
}

.fai-dsr-metric__icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: var(--dsr-radius-md);
  background: var(--dsr-indigo-dim);
  border: 1px solid rgba(79, 70, 229, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #818CF8;
}

.fai-dsr-metric__content {
  flex: 1;
  min-width: 0;
}

.fai-dsr-metric__label {
  font-size: 0.725rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #CBD5E1;
  margin-bottom: 0.25em;
}

.fai-dsr-metric__value {
  font-family: var(--dsr-font-mono);
  font-size: 0.935rem;
  font-weight: 500;
  color: var(--dsr-text-primary);
  line-height: 1.25;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.fai-dsr-metric__sub {
  font-size: 0.7625rem;
  color: #94A3B8;
  margin-top: 0.2em;
  line-height: 1.35;
}

/* ── Textbefund ── */
.fai-dsr-finding {
  background: var(--dsr-bg-elevated);
  border: 1px solid var(--dsr-border);
  border-radius: var(--dsr-radius-lg);
  padding: var(--dsr-space-md) var(--dsr-space-lg);
  display: flex;
  gap: var(--dsr-space-sm);
  align-items: flex-start;
  transition: border-color var(--dsr-transition-med);
}

.fai-dsr-finding--green { border-left: 3px solid var(--dsr-green); }
.fai-dsr-finding--amber { border-left: 3px solid var(--dsr-amber); }
.fai-dsr-finding--red   { border-left: 3px solid var(--dsr-red); }

.fai-dsr-finding__icon {
  flex-shrink: 0;
  color: var(--dsr-cyan);
  margin-top: 0.15em;
}

.fai-dsr-finding__text {
  margin: 0;
  font-size: 0.9rem;
  color: var(--dsr-text-secondary);
  line-height: 1.6;
}

/* ═══════════════════════════════════════════════════════════════════════════
   RESPONSIVITÄT
   ═══════════════════════════════════════════════════════════════════════════ */

/* Mobile & schmale Screens: 1 Spalte untereinander */
@media (max-width: 768px) {
  .fai-dsr-inputs {
    grid-template-columns: 1fr;
    gap: var(--dsr-space-lg);
  }

  .fai-dsr-expert__content {
    grid-template-columns: 1fr;
  }

  .fai-dsr-metrics {
    grid-template-columns: 1fr;
  }

  .fai-dsr-body,
  .fai-dsr-results {
    padding-left: var(--dsr-space-lg);
    padding-right: var(--dsr-space-lg);
  }
}

/* Mobile */
@media (max-width: 480px) {
  .fai-dsr-body,
  .fai-dsr-results {
    padding-left: var(--dsr-space-md);
    padding-right: var(--dsr-space-md);
  }

  .fai-dsr-header__title {
    font-size: 1.5rem;
  }

  .fai-dsr-score-card__value {
    font-size: 2.4rem;
  }

  .fai-dsr-duration-row {
    flex-wrap: wrap;
  }

  .fai-dsr-slider-row {
    flex-wrap: wrap;
  }

  .fai-dsr-input--small {
    width: 100%;
    text-align: left;
  }

  .fai-dsr-tooltip-btn::after {
    left: 0;
    transform: none;
    right: auto;
  }
}

/* ═══════════════════════════════════════════════════════════════════════════
   MOTION-REDUCE (Barrierefreiheit)
   ═══════════════════════════════════════════════════════════════════════════ */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}