/* Components — buttons, cards, forms, media frame, video facade. */

/* ——— Buttons ——— */
.fm-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 18px 40px;
  border-radius: var(--fm-radius-btn);
  border: 1.5px solid transparent;
  font-family: var(--fm-font-body);
  font-weight: 700;
  font-size: 14px;
  line-height: 1.2;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.fm-btn--primary {
  background: var(--fm-signal-btn);
  border-color: transparent;
  color: var(--fm-white);
  box-shadow: var(--fm-shadow-btn);
}

.fm-btn--primary:hover,
.fm-btn--primary:focus-visible {
  background: var(--fm-signal-dark);
  border-color: transparent;
  color: var(--fm-white);
  transform: translateY(-2px);
}

.fm-btn--secondary {
  background: var(--fm-azure);
  border-color: transparent;
  color: var(--fm-white);
  box-shadow: none;
}

.fm-btn--secondary:hover,
.fm-btn--secondary:focus-visible {
  background: #005f8f;
  border-color: transparent;
  color: var(--fm-white);
  transform: translateY(-2px);
}

.fm-btn--ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.6);
  color: #fff;
}

.fm-btn--ghost:hover,
.fm-btn--ghost:focus-visible {
  background: rgba(255, 255, 255, 0.08);
  border-color: #fff;
  color: #fff;
}

.fm-btn--tertiary {
  background: var(--fm-surface-alt);
  border-color: transparent;
  color: var(--fm-ink);
}

.fm-btn--tertiary:hover,
.fm-btn--tertiary:focus-visible {
  filter: brightness(0.97);
  color: var(--fm-ink);
}

/* ——— Bracket motif ——— */
.fm-bracket-title {
  position: relative;
  display: inline-block;
  padding-left: 18px;
}

.fm-bracket-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.12em;
  width: 14px;
  height: 0.85em;
  border-left: 2px solid var(--fm-signal);
  border-top: 2px solid var(--fm-signal);
}

.fm-media-frame {
  position: relative;
  border-radius: var(--fm-radius-media);
  overflow: hidden;
}

.fm-media-frame::after {
  content: "";
  position: absolute;
  left: 12px;
  top: 12px;
  width: 28px;
  height: 28px;
  border-left: 2px solid var(--fm-signal);
  border-top: 2px solid var(--fm-signal);
  pointer-events: none;
  z-index: 2;
}

/* ——— Stats ——— */
.fm-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--fm-block-gap);
}

.fm-stat-badge {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 280px;
  padding: 36px 32px;
  background: var(--fm-surface);
  border-radius: var(--fm-radius-card);
  box-shadow: var(--fm-shadow-card);
  border: 0;
}

.fm-stat-badge__value,
.fm-stat-badge .fm-stat {
  font-family: var(--fm-font-display);
  font-size: var(--fm-stat);
  font-weight: 800;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--fm-ink);
}

.fm-stat-badge__label {
  display: block;
  margin-top: auto;
  padding-top: 24px;
  font-family: var(--fm-font-body);
  font-size: 16px;
  font-style: italic;
  font-weight: 400;
  color: var(--fm-ink-muted);
}

@media (min-width: 768px) {
  .fm-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--fm-block-gap);
  }
}

/* ——— Cards / tags ——— */
.fm-cards {
  display: grid;
  gap: var(--fm-block-gap);
}

@media (min-width: 768px) {
  .fm-cards {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}

.fm-card {
  position: relative;
  background: var(--fm-surface);
  border-radius: var(--fm-radius-card);
  padding: 36px 32px;
  box-shadow: var(--fm-shadow-card);
  border: 0;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.fm-card--hover {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.fm-card--hover::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s ease;
  box-shadow: inset 2px 0 0 var(--fm-signal), inset 0 2px 0 var(--fm-signal);
  width: 28px;
  height: 28px;
  right: auto;
  bottom: auto;
}

.fm-card--hover:hover,
.fm-card--hover:focus-within {
  transform: translateY(-4px);
  box-shadow: var(--fm-shadow-hover);
}

.fm-card--hover:hover::before,
.fm-card--hover:focus-within::before {
  opacity: 1;
}

.fm-card__link {
  color: inherit;
  text-decoration: none;
}

.fm-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin-bottom: 12px;
  border-radius: var(--fm-radius-icon);
  background: rgba(0, 118, 176, 0.1);
  object-fit: contain;
}

.fm-card__icon--signal {
  background: rgba(238, 59, 59, 0.1);
}

.fm-card__title {
  margin: 12px 0 8px;
  font-size: var(--fm-card-title);
}

.fm-card__excerpt {
  margin: 0;
  color: var(--fm-ink-muted);
}

.fm-tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border-radius: var(--fm-radius-tag, 999px);
  background: rgba(169, 188, 202, 0.2);
  color: var(--fm-navy);
  font-size: 13px;
  font-weight: 500;
}

/* ——— Timeline ——— */
.fm-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 24px;
}

.fm-timeline__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: start;
}

.fm-timeline__num {
  font-family: var(--fm-font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--fm-ink);
  white-space: nowrap;
}

.fm-timeline__item h3 {
  margin-top: 0;
}

/* ——— Accordion ——— */
.fm-accordion__item {
  border-bottom: 1px solid rgba(38, 34, 29, 0.12);
  padding: 4px 0;
}

.fm-accordion__item summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 0;
  font-weight: 700;
  color: var(--fm-ink);
}

.fm-accordion__item summary::-webkit-details-marker {
  display: none;
}

.fm-accordion__body {
  padding: 0 0 16px;
}

/* ——— Tabs ——— */
.fm-tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.fm-tabs__tab {
  border: 1.5px solid rgba(38, 34, 29, 0.2);
  background: transparent;
  color: var(--fm-ink);
  border-radius: var(--fm-radius-sm);
  padding: 10px 16px;
  font-weight: 700;
  cursor: pointer;
}

.fm-tabs__tab.is-active,
.fm-tabs__tab[aria-selected="true"] {
  background: var(--fm-ink);
  border-color: var(--fm-ink);
  color: #fff;
}

.fm-tabs__panel[hidden] {
  display: none !important;
}

/* ——— Slider shell ——— */
.fm-slider {
  position: relative;
  overflow: hidden;
}

.fm-slider__track {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
}

.fm-slider__slide {
  flex: 0 0 min(100%, 360px);
  scroll-snap-align: start;
}

/* ——— Modal ——— */
.fm-modal[hidden] {
  display: none !important;
}

.fm-modal {
  position: fixed;
  inset: 0;
  z-index: 400;
  display: grid;
  place-items: center;
  padding: 20px;
}

.fm-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(4, 32, 47, 0.55);
}

.fm-modal__dialog {
  position: relative;
  z-index: 1;
  width: min(100%, 560px);
  background: var(--fm-white);
  border-radius: var(--fm-radius-card);
  padding: 24px;
}

.fm-modal__close {
  position: absolute;
  top: 12px;
  right: 12px;
  border: 0;
  background: transparent;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  color: var(--fm-ink);
}

/* ——— Pagination ——— */
.fm-pagination .nav-links,
.fm-pagination {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 32px;
}

.fm-pagination a,
.fm-pagination span {
  display: inline-flex;
  min-width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  padding: 0 12px;
  border: 1px solid rgba(38, 34, 29, 0.15);
  border-radius: var(--fm-radius-sm);
  text-decoration: none;
  color: var(--fm-ink);
  font-weight: 600;
}

.fm-pagination .current {
  background: var(--fm-ink);
  border-color: var(--fm-ink);
  color: #fff;
}

/* ——— Forms ——— */
.fm-form {
  display: grid;
  gap: 12px;
  max-width: 480px;
}

.fm-form--inline {
  display: flex;
  gap: 8px;
  max-width: none;
}

.fm-label {
  font-weight: 600;
  font-size: 14px;
}

.fm-input,
.fm-select {
  width: 100%;
  height: 56px;
  border: none;
  border-radius: var(--fm-radius-input);
  padding: 0 24px;
  background: #ffffff;
  color: var(--fm-ink);
  font-family: var(--fm-font-body);
  font-size: 17px;
  outline: none;
}

.fm-textarea {
  width: 100%;
  border: none;
  border-radius: 24px;
  padding: 16px 24px;
  background: #ffffff;
  color: var(--fm-ink);
  font-family: var(--fm-font-body);
  font-size: 17px;
  outline: none;
  min-height: 120px;
  resize: vertical;
}

.fm-input:focus,
.fm-select:focus {
  outline: 2px solid var(--fm-azure);
  outline-offset: 0;
  border: none;
  box-shadow: none;
}

.fm-textarea:focus {
  outline: 2px solid var(--fm-azure);
  outline-offset: 0;
  box-shadow: none;
}

.fm-input.is-error,
.fm-textarea.is-error,
.fm-select.is-error {
  outline: 2px solid var(--fm-signal);
}

.fm-field-error {
  margin: 0;
  color: var(--fm-signal);
  font-size: 14px;
}

.fm-check {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 14px;
}

.fm-check input {
  margin-top: 3px;
}

/* ——— Prose ——— */
.prose {
  max-width: var(--fm-measure, 42rem);
  font-size: var(--fm-body-lg);
  line-height: 1.65;
}

.prose > * + * {
  margin-top: 1em;
}

.prose h2,
.prose h3 {
  margin-top: 1.6em;
}

.prose ul,
.prose ol {
  padding-left: 1.25em;
}

.prose a {
  color: var(--fm-ink-muted);
}

.prose img {
  border-radius: var(--fm-radius-card);
}

/* ——— Demo helpers ——— */
.fm-demo-block + .fm-demo-block {
  margin-top: 48px;
}

.fm-demo-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.screen-reader-text {
  border: 0;
  clip: rect(1px, 1px, 1px, 1px);
  clip-path: inset(50%);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  width: 1px;
  word-wrap: normal !important;
}

/* ——— Video facade ——— */
.fm-video {
  --fm-video-ratio: 16 / 9;
  position: relative;
  width: 100%;
  max-width: 100%;
}

.fm-video--portrait {
  --fm-video-ratio: 9 / 16;
  max-width: 360px;
}

.fm-video__facade {
  display: block;
  width: 100%;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  text-align: left;
  font: inherit;
  color: inherit;
}

.fm-video__facade:focus-visible {
  outline: 2px solid var(--fm-ink-muted);
  outline-offset: 4px;
}

.fm-video__frame {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: var(--fm-video-ratio);
  overflow: hidden;
  background: var(--fm-ink);
}

.fm-video__poster {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.fm-video__poster--empty {
  background: var(--fm-dark);
}

.fm-video__bracket {
  position: absolute;
  left: 12px;
  top: 12px;
  width: 28px;
  height: 28px;
  border-left: 2px solid var(--fm-signal);
  border-top: 2px solid var(--fm-signal);
  pointer-events: none;
  z-index: 2;
}

.fm-video__play {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 2;
  width: 64px;
  height: 64px;
  margin: -32px 0 0 -32px;
  border-radius: var(--fm-radius-btn);
  background: var(--fm-signal-btn);
  box-shadow: var(--fm-shadow-card);
  transition: transform 0.15s ease, background 0.15s ease;
}

.fm-video__play::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-35%, -50%);
  border-style: solid;
  border-width: 10px 0 10px 16px;
  border-color: transparent transparent transparent var(--fm-white);
}

.fm-video__facade:hover .fm-video__play,
.fm-video__facade:focus-visible .fm-video__play {
  transform: scale(1.05);
  background: #d43232;
}

.fm-video__duration {
  position: absolute;
  right: 12px;
  bottom: 12px;
  z-index: 2;
  padding: 4px 8px;
  background: rgba(4, 32, 47, 0.85);
  color: #fff;
  font-family: var(--fm-font-mono);
  font-size: 13px;
  border-radius: var(--fm-radius-sm);
}

.fm-video__label {
  display: block;
  margin-top: 12px;
  font-weight: 500;
  font-size: 15px;
  color: var(--fm-ink);
}

.fm-video__player {
  position: relative;
  width: 100%;
  aspect-ratio: var(--fm-video-ratio);
  background: #000;
}

.fm-video__player[hidden] {
  display: none !important;
}

.fm-video__el {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  background: #000;
}

.fm-video.is-playing .fm-video__facade[hidden] {
  display: none !important;
}

/* ——— Закрытый урок ——— */
.fm-lesson-player {
  position: relative;
  overflow: hidden;
}

.fm-lesson-wm {
  position: absolute;
  z-index: 3;
  pointer-events: none;
  transform: translate(-50%, -50%);
  transition: left 1.2s ease, top 1.2s ease;
}

.fm-lesson-wm__text {
  display: inline-block;
  padding: 4px 10px;
  font-family: var(--fm-font-mono, "Onest", monospace);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.55);
  background: rgba(4, 32, 47, 0.28);
  border-radius: var(--fm-radius-btn);
  white-space: nowrap;
  user-select: none;
}

.fm-lesson-locked {
  position: relative;
  border-radius: var(--fm-radius-card);
  overflow: hidden;
  background: var(--fm-cream, var(--fm-bg));
}

.fm-lesson-locked__poster {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: grayscale(0.15);
}

.fm-lesson-locked__panel {
  position: absolute;
  inset: auto 0 0;
  padding: 24px;
  background: rgba(32, 28, 24, 0.92);
  color: var(--fm-white, #fff);
}

.fm-lesson-locked__panel p {
  margin: 0 0 16px;
  max-width: var(--fm-measure, 42rem);
}

.fm-lesson-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.fm-lesson-list__link {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  gap: 16px;
  align-items: center;
  padding: 16px 20px;
  text-decoration: none;
  color: inherit;
  background: var(--fm-surface-alt);
  border-radius: var(--fm-radius-card);
}

.fm-lesson-list__num {
  font-family: var(--fm-font-mono, "Onest", monospace);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--fm-ink-muted);
}

.fm-lesson-list__title {
  display: block;
  font-weight: 700;
}

.fm-lesson-list__mod,
.fm-lesson-list__dur,
.fm-lesson-list__state {
  font-size: 13px;
  color: var(--fm-line);
}

.fm-lesson-list__item.is-locked .fm-lesson-list__link {
  opacity: 0.85;
}

.fm-lesson-nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 48px;
}

.fm-lesson-materials {
  margin-top: 48px;
}

.fm-lesson-request {
  max-width: 560px;
}

.fm-access-invalid__box {
  max-width: 640px;
}

@media (max-width: 782px) {
  .fm-lesson-list__link {
    grid-template-columns: auto 1fr;
    grid-template-rows: auto auto;
  }

  .fm-lesson-list__dur,
  .fm-lesson-list__state {
    grid-column: 2;
  }
}

@media (max-width: 782px) {
  .fm-video--portrait {
    max-width: 280px;
    margin-inline: auto;
  }

  .fm-video__play {
    width: 56px;
    height: 56px;
    margin: -28px 0 0 -28px;
  }
}