/**
 * IMT Premium Education System — Shared Components
 * Scoped under .imt-* to avoid Bootstrap leakage.
 */

/* ========== Buttons ========== */
.imt-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--imt-space-2);
  min-height: var(--imt-touch-min);
  padding: 0.65rem 1.35rem;
  border-radius: var(--imt-radius-sm);
  font-family: var(--imt-font-heading);
  font-size: var(--imt-text-sm);
  font-weight: 700;
  line-height: 1.3;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition:
    background-color var(--imt-motion) var(--imt-ease),
    color var(--imt-motion) var(--imt-ease),
    border-color var(--imt-motion) var(--imt-ease),
    box-shadow var(--imt-motion) var(--imt-ease),
    transform var(--imt-motion) var(--imt-ease);
}

.imt-btn:hover,
.imt-btn:focus {
  text-decoration: none;
}

.imt-btn--primary {
  background: var(--imt-primary);
  color: var(--imt-white);
  box-shadow: 0 8px 24px rgba(87, 134, 199, 0.28);
}

.imt-btn--primary:hover {
  background: var(--imt-primary-dark);
  color: var(--imt-white);
  transform: translateY(-1px);
}

.imt-btn--secondary {
  background: var(--imt-white);
  color: var(--imt-primary);
  border-color: var(--imt-primary);
}

.imt-btn--secondary:hover {
  background: var(--imt-primary-soft);
  color: var(--imt-primary-dark);
}

.imt-btn--ghost {
  background: transparent;
  color: var(--imt-primary);
  border-color: transparent;
}

.imt-btn--ghost:hover {
  background: var(--imt-primary-soft);
}

.imt-btn--on-dark {
  background: var(--imt-white);
  color: var(--imt-primary);
}

.imt-btn--on-dark-outline {
  background: transparent;
  color: var(--imt-white);
  border-color: rgba(255, 255, 255, 0.75);
}

.imt-btn--block {
  width: 100%;
}

/* ========== Forms ========== */
.imt-field {
  display: flex;
  flex-direction: column;
  gap: var(--imt-space-2);
  margin-bottom: var(--imt-space-4);
}

.imt-label {
  font-size: var(--imt-text-sm);
  font-weight: 700;
  color: var(--imt-text);
}

.imt-input,
.imt-select,
.imt-textarea {
  width: 100%;
  min-height: var(--imt-touch-min);
  padding: 0.65rem 0.9rem;
  border: 1px solid rgba(100, 116, 139, 0.28);
  border-radius: var(--imt-radius-sm);
  background: var(--imt-white);
  color: var(--imt-text);
  font-family: var(--imt-font-body);
  font-size: var(--imt-text-base);
  transition: border-color var(--imt-motion) var(--imt-ease), box-shadow var(--imt-motion) var(--imt-ease);
}

.imt-textarea {
  min-height: 120px;
  resize: vertical;
}

.imt-input:focus,
.imt-select:focus,
.imt-textarea:focus {
  border-color: var(--imt-primary);
  box-shadow: var(--imt-focus-ring);
  outline: none;
}

.imt-input::placeholder,
.imt-textarea::placeholder {
  color: #94A3B8;
}

/* ========== Section header ========== */
.imt-section {
  padding: var(--imt-section-y) 0;
}

.imt-section--soft {
  background: var(--imt-primary-soft);
}

.imt-section__header {
  text-align: right;
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
  max-width: 46rem;
  margin-inline-start: auto;
}

.imt-section__eyebrow {
  display: inline-block;
  margin: 0 0 var(--imt-space-2);
  font-size: var(--imt-text-xs);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--imt-primary);
  text-transform: none;
}

.imt-section__title {
  margin: 0 0 var(--imt-space-3);
  font-size: var(--imt-text-2xl);
  font-weight: 800;
  line-height: var(--imt-leading-tight);
  color: var(--imt-text);
}

.imt-section__sub {
  margin: 0;
  font-size: var(--imt-text-base);
  line-height: var(--imt-leading-body);
  color: var(--imt-muted);
}

/* ========== Cards ========== */
.imt-card {
  background: var(--imt-white);
  border: 1px solid var(--imt-border);
  border-radius: var(--imt-radius-md);
  box-shadow: var(--imt-shadow-sm);
  overflow: hidden;
  transition: transform var(--imt-motion) var(--imt-ease), box-shadow var(--imt-motion) var(--imt-ease);
}

.imt-card:hover {
  box-shadow: var(--imt-shadow-md);
}

.imt-card--edu {
  display: flex;
  flex-direction: column;
}

.imt-card--edu .imt-card__media {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--imt-primary-soft);
}

.imt-card--edu .imt-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.imt-card--edu .imt-card__body {
  padding: var(--imt-space-5);
  display: flex;
  flex-direction: column;
  gap: var(--imt-space-3);
  flex: 1;
}

.imt-card--edu .imt-card__title {
  margin: 0;
  font-size: var(--imt-text-lg);
  font-weight: 800;
  color: var(--imt-text);
  line-height: var(--imt-leading-snug);
}

.imt-card--edu .imt-card__text {
  margin: 0;
  font-size: var(--imt-text-sm);
  color: var(--imt-muted);
  line-height: var(--imt-leading-body);
  flex: 1;
}

.imt-card--testimonial {
  padding: var(--imt-space-5);
}

.imt-card--testimonial .imt-card__quote {
  margin: 0 0 var(--imt-space-4);
  font-size: var(--imt-text-base);
  line-height: var(--imt-leading-loose);
  color: var(--imt-text);
}

.imt-card--testimonial .imt-card__author {
  display: flex;
  align-items: center;
  gap: var(--imt-space-3);
}

.imt-card--testimonial .imt-card__avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--imt-primary-soft);
}

.imt-card--graduate {
  text-align: center;
  padding: var(--imt-space-5) var(--imt-space-4);
}

.imt-card--graduate .imt-card__avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto var(--imt-space-3);
  border: 3px solid var(--imt-primary-light);
}

.imt-card--graduate .imt-card__title {
  margin: 0 0 var(--imt-space-1);
  font-size: var(--imt-text-md);
  font-weight: 800;
  color: var(--imt-text);
}

.imt-card--graduate .imt-card__meta {
  margin: 0;
  font-size: var(--imt-text-sm);
  color: var(--imt-muted);
}

.imt-card--video {
  position: relative;
}

.imt-card--video .imt-card__media {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #0f172a;
}

.imt-card--video .imt-card__play {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 32, 68, 0.28);
}

.imt-card--video .imt-card__play-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--imt-white);
  color: var(--imt-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--imt-shadow-md);
}

.imt-card--video .imt-card__body {
  padding: var(--imt-space-4);
}

.imt-card--product .imt-card__media {
  aspect-ratio: 1 / 1;
  background: var(--imt-primary-soft);
}

.imt-card--product .imt-card__body {
  padding: var(--imt-space-4);
}

.imt-card--product .imt-card__price {
  margin: var(--imt-space-2) 0;
  font-weight: 800;
  color: var(--imt-primary);
}

.imt-card--partner {
  padding: var(--imt-space-5);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--imt-space-3);
}

.imt-card--partner .imt-card__logo {
  max-width: 180px;
  max-height: 100px;
  object-fit: contain;
}

.imt-card--membership {
  border-color: var(--imt-border-strong);
  background: linear-gradient(180deg, var(--imt-white) 0%, var(--imt-primary-soft) 100%);
}

/* ========== Trust strip ========== */
.imt-trust {
  background: var(--imt-primary-deep);
  color: var(--imt-white);
  padding: clamp(1.25rem, 3vw, 1.75rem) 0;
}

.imt-trust__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--imt-space-4);
  text-align: center;
}

.imt-trust__value {
  margin: 0;
  font-size: var(--imt-text-xl);
  font-weight: 800;
  line-height: 1.2;
}

.imt-trust__label {
  margin: var(--imt-space-1) 0 0;
  font-size: var(--imt-text-sm);
  opacity: 0.9;
}

@media (max-width: 767.98px) {
  .imt-trust__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ========== Empty state ========== */
.imt-empty {
  text-align: center;
  padding: clamp(2.5rem, 6vw, 4rem) var(--imt-space-5);
  background: var(--imt-white);
  border: 1px dashed var(--imt-border-strong);
  border-radius: var(--imt-radius-lg);
}

.imt-empty__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--imt-space-4);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--imt-primary-soft);
  color: var(--imt-primary);
  font-size: 1.5rem;
}

.imt-empty__title {
  margin: 0 0 var(--imt-space-2);
  font-size: var(--imt-text-xl);
  font-weight: 800;
  color: var(--imt-text);
}

.imt-empty__text {
  margin: 0 auto var(--imt-space-5);
  max-width: 36rem;
  color: var(--imt-muted);
  line-height: var(--imt-leading-body);
}

.imt-empty__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--imt-space-3);
  justify-content: center;
}

/* ========== FAQ ========== */
.imt-faq {
  border: 1px solid var(--imt-border);
  border-radius: var(--imt-radius-md);
  background: var(--imt-white);
  overflow: hidden;
}

.imt-faq__item + .imt-faq__item {
  border-top: 1px solid var(--imt-border);
}

.imt-faq__q {
  width: 100%;
  min-height: var(--imt-touch-min);
  padding: var(--imt-space-4) var(--imt-space-5);
  background: transparent;
  border: 0;
  text-align: right;
  font-family: var(--imt-font-heading);
  font-size: var(--imt-text-md);
  font-weight: 700;
  color: var(--imt-text);
  cursor: pointer;
}

.imt-faq__a {
  padding: 0 var(--imt-space-5) var(--imt-space-4);
  color: var(--imt-muted);
  line-height: var(--imt-leading-body);
  font-size: var(--imt-text-sm);
}

/* ========== Icon chip ========== */
.imt-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--imt-radius-sm);
  background: var(--imt-primary-soft);
  color: var(--imt-primary);
  flex-shrink: 0;
}

.imt-icon--circle {
  border-radius: 50%;
}

.imt-icon svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ========== Reveal helper ========== */
.imt-reveal {
  opacity: 0;
  transform: translate3d(0, 12px, 0);
  transition:
    opacity var(--imt-motion-slow) var(--imt-ease),
    transform var(--imt-motion-slow) var(--imt-ease);
}

.imt-reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .imt-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .imt-btn:hover,
  .imt-card:hover {
    transform: none;
  }
}