/* ═══════════════════════════════════════════════════════════
   TEKERLEME HIZ TESTİ — İnteraktif Uygulama Sayfası
   ═══════════════════════════════════════════════════════════ */

/* ─── Page Layout ────────────────────────────────────── */
.tekerleme-page {
  max-width: var(--container-narrow);
  margin: 0 auto;
}

/* ─── Page Header ────────────────────────────────────── */
.page-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.page-header__icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
  display: block;
}

.page-header__title {
  font-size: var(--fs-h1);
  margin-bottom: var(--space-md);
}

.page-header__desc {
  font-size: var(--fs-body-lg);
  color: var(--color-text-secondary);
  max-width: 560px;
  margin: 0 auto;
  line-height: var(--lh-relaxed);
}

/* ─── Controls Panel ─────────────────────────────────── */
.controls-panel {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-bottom: var(--space-xl);
  box-shadow: var(--shadow-card);
}

.controls-panel__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xl);
  flex-wrap: wrap;
}

.controls-panel__row + .controls-panel__row {
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.control-group__label {
  font-size: var(--fs-small);
  font-weight: var(--fw-semibold);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: var(--ls-wider);
}

.control-group__value {
  font-family: var(--font-heading);
  font-size: var(--fs-h3);
  font-weight: var(--fw-bold);
  color: var(--color-primary);
}

.wpm-slider-container {
  flex: 1;
  min-width: 200px;
}

.wpm-display {
  display: flex;
  align-items: baseline;
  gap: var(--space-xs);
}

.wpm-display__number {
  font-family: var(--font-heading);
  font-size: var(--fs-h2);
  font-weight: var(--fw-extrabold);
  color: var(--color-primary);
}

.wpm-display__unit {
  font-size: var(--fs-small);
  color: var(--color-text-tertiary);
  font-weight: var(--fw-medium);
}

/* ─── Mode Buttons ───────────────────────────────────── */
.mode-selector {
  display: flex;
  gap: var(--space-sm);
}

.mode-btn {
  padding: 10px 20px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-white);
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.mode-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.mode-btn--active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

.mode-btn--active:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: var(--color-white);
}

/* ─── Reading Area ───────────────────────────────────── */
.reading-area {
  background: var(--color-white);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3xl) var(--space-xl);
  min-height: 320px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  box-shadow: var(--shadow-card);
  margin-bottom: var(--space-xl);
  overflow: hidden;
  transition: border-color var(--transition-normal);
}

.reading-area--active {
  border-color: var(--color-primary);
}

.reading-area__idle {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}

.reading-area__idle-icon {
  font-size: 4rem;
  opacity: 0.3;
}

.reading-area__idle-text {
  font-size: var(--fs-body-lg);
  color: var(--color-text-tertiary);
  font-weight: var(--fw-medium);
}

/* RSVP Word Display */
.rsvp-display {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xl);
  width: 100%;
}

.rsvp-display--visible {
  display: flex;
}

.rsvp-word {
  font-family: var(--font-heading);
  font-size: 4rem;
  font-weight: var(--fw-extrabold);
  color: var(--color-text-primary);
  min-height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 80ms ease;
  line-height: 1.1;
}

.rsvp-word--highlight {
  color: var(--color-primary);
}

.rsvp-counter {
  font-size: var(--fs-small);
  color: var(--color-text-tertiary);
  font-weight: var(--fw-medium);
}

/* Full Text (Manual mode) */
.fulltext-display {
  display: none;
  width: 100%;
}

.fulltext-display--visible {
  display: block;
}

.fulltext-text {
  font-size: var(--fs-h3);
  font-weight: var(--fw-medium);
  color: var(--color-text-primary);
  line-height: 1.8;
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.fulltext-text .word {
  display: inline;
  transition: color var(--transition-fast);
}

.fulltext-text .word--past {
  color: var(--color-text-tertiary);
}

.fulltext-text .word--current {
  color: var(--color-primary);
  font-weight: var(--fw-bold);
  position: relative;
}

.fulltext-text .word--current::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-primary);
  border-radius: var(--radius-full);
}

/* Progress bar inside reading area */
.reading-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--color-border);
}

.reading-progress__bar {
  height: 100%;
  background: var(--color-primary);
  transition: width 100ms linear;
  width: 0%;
}

/* ─── Timer Strip ────────────────────────────────────── */
.timer-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xl);
  margin-bottom: var(--space-xl);
}

.timer-display {
  display: flex;
  align-items: baseline;
  gap: var(--space-xs);
}

.timer-display__time {
  font-family: var(--font-heading);
  font-size: var(--fs-h1);
  font-weight: var(--fw-extrabold);
  color: var(--color-text-primary);
  font-variant-numeric: tabular-nums;
  letter-spacing: var(--ls-tight);
}

.timer-display__label {
  font-size: var(--fs-xs);
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: var(--ls-wider);
  font-weight: var(--fw-medium);
}

/* ─── Action Buttons ─────────────────────────────────── */
.action-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

/* ─── Result Card ────────────────────────────────────── */
.result-card {
  display: none;
  background: var(--color-white);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  text-align: center;
  margin-bottom: var(--space-2xl);
  box-shadow: var(--shadow-lg);
  animation: resultSlideIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.result-card--visible {
  display: block;
}

@keyframes resultSlideIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.result-card__header {
  margin-bottom: var(--space-xl);
}

.result-card__title {
  font-family: var(--font-heading);
  font-size: var(--fs-h3);
  font-weight: var(--fw-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-xs);
}

.result-card__subtitle {
  font-size: var(--fs-body);
  color: var(--color-text-secondary);
}

.result-card__stats {
  display: flex;
  justify-content: center;
  gap: var(--space-3xl);
  margin-bottom: var(--space-xl);
}

.result-card__actions {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
}

/* ─── Tekerleme Selector ─────────────────────────────── */
.tekerleme-info {
  background: var(--color-primary-light);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.tekerleme-info__text {
  font-size: var(--fs-small);
  color: var(--color-text-secondary);
}

.tekerleme-info__text strong {
  color: var(--color-text-primary);
}

/* ─── Content Article ────────────────────────────────── */
.content-article {
  margin-top: var(--space-4xl);
  padding-top: var(--space-3xl);
  border-top: 1px solid var(--color-border);
}

.content-article h2 {
  margin-bottom: var(--space-lg);
}

.content-article h3 {
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
}

.content-article p {
  margin-bottom: var(--space-lg);
  font-size: var(--fs-body-lg);
  line-height: var(--lh-relaxed);
}

.content-article ul, .content-article ol {
  margin-bottom: var(--space-lg);
  padding-left: var(--space-xl);
}

.content-article li {
  font-size: var(--fs-body-lg);
  color: var(--color-text-secondary);
  line-height: var(--lh-relaxed);
  margin-bottom: var(--space-sm);
  list-style: disc;
}

.content-article ol li {
  list-style: decimal;
}

/* ─── Related Exercises ──────────────────────────────── */
.related-exercises {
  margin-top: var(--space-3xl);
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--color-border);
}

.related-exercises__title {
  font-size: var(--fs-h3);
  margin-bottom: var(--space-xl);
  text-align: center;
}

.related-exercises__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.related-card {
  text-align: center;
  padding: var(--space-xl);
}

.related-card__icon {
  font-size: 2rem;
  margin-bottom: var(--space-sm);
  display: block;
}

.related-card__title {
  font-size: var(--fs-body);
  font-weight: var(--fw-semibold);
}

@media (max-width: 768px) {
  .controls-panel__row {
    flex-direction: column;
    align-items: stretch;
  }

  .rsvp-word {
    font-size: 2.5rem;
  }

  .timer-strip {
    flex-direction: column;
    gap: var(--space-md);
  }

  .action-buttons {
    flex-direction: column;
  }

  .action-buttons .btn {
    width: 100%;
  }

  .result-card__stats {
    flex-direction: column;
    gap: var(--space-lg);
  }

  .related-exercises__grid {
    grid-template-columns: 1fr;
  }

  .fulltext-text {
    font-size: var(--fs-h4);
  }
}