/* ============================================
   Components — Buttons, Cards, Badges, Forms
   ============================================ */

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-xs);
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  text-decoration: none;
  cursor: pointer;
  border: 3px solid transparent;
  transition: transform var(--ease-fast), box-shadow var(--ease-fast);
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-btn);
}

.btn--primary:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-btn-hover);
}

.btn--primary:active {
  transform: scale(0.98);
}

.btn--outline {
  background: var(--color-bg);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--outline:hover {
  background: var(--color-primary-light);
  transform: scale(1.02);
}

.btn--outline:active {
  transform: scale(0.98);
}

.btn--small {
  padding: 8px 20px;
  font-size: var(--fs-sm);
}

.btn--large {
  padding: 16px 32px;
  font-size: var(--fs-md);
}

.btn--full {
  width: 100%;
}

.btn--zalo {
  background: #0068ff;
  color: var(--color-text-inverse);
  border-color: #0068ff;
}

.btn--zalo:hover {
  background: #0054cc;
  border-color: #0054cc;
  transform: scale(1.02);
}

.btn--pulse {
  animation: pulse-glow 2s infinite;
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(248, 117, 165, 0.4); }
  70% { box-shadow: 0 0 0 12px rgba(248, 117, 165, 0); }
}

.btn svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

@media (min-width: 600px) {
  .btn--full {
    width: auto;
  }
}

/* ---- Badge / Pill ---- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2xs);
  padding: 4px 16px;
  border-radius: var(--radius-pill);
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  line-height: 1.4;
}

.badge--brand {
  background: var(--color-bg);
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.badge--hero {
  background: #f875a5;
  color: #ffffff;
  border: none;
  font-size: 0.875rem;
  font-weight: var(--fw-semibold);
  padding: 6px 14px;
  letter-spacing: 0.1px;
}

.badge--accent {
  background: var(--color-accent);
  color: var(--color-text-inverse);
  border: none;
  font-weight: var(--fw-bold);
}

/* ---- Cards ---- */
.card {
  background: var(--color-bg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  z-index: 1;
}

.card:hover {
  transform: translateY(-4px);
  z-index: 10;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
}

.card__image {
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-light);
}

.card__image img {
  width: 65%;
  height: auto;
  object-fit: contain;
  transition: transform var(--ease-normal);
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.1));
}

.card:hover .card__image img {
  transform: scale(1.08);
}

.card__body {
  padding: var(--sp-md);
}

.card__title {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  color: var(--color-text);
  margin-bottom: var(--sp-2xs);
}

.card__text {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: var(--lh-relaxed);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card:hover .card__text {
  -webkit-line-clamp: unset;
  display: block;
  overflow: visible;
}

/* ---- Trust Badge ---- */
.trust-badge {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  min-width: max-content;
}

.trust-badge__icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-circle);
  background: var(--color-bg);
  border: 2px solid var(--color-border);
  flex-shrink: 0;
  color: var(--color-primary);
}

.trust-badge__icon svg {
  width: 20px;
  height: 20px;
}

.trust-badge__label {
  font-size: 0.875rem;
  font-weight: var(--fw-semibold);
  color: var(--color-text);
  line-height: var(--lh-snug);
}

.trust-badge__sub {
  font-size: var(--fs-xs);
  color: var(--color-text-secondary);
  font-weight: var(--fw-regular);
}

/* ---- Trust Card (specs section) ---- */
.trust-card {
  background: var(--color-bg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--sp-lg);
  text-align: center;
}

.trust-card__icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--sp-sm);
  color: var(--color-primary);
}

.trust-card__icon svg {
  width: 100%;
  height: 100%;
}

.trust-card__title {
  font-size: 0.9375rem;
  font-weight: var(--fw-semibold);
  color: var(--color-text);
  margin-bottom: var(--sp-2xs);
}

.trust-card__text {
  font-size: var(--fs-xs);
  color: var(--color-text-secondary);
  line-height: var(--lh-relaxed);
}

/* ---- Testimonial Card ---- */
.testimonial {
  background: var(--color-bg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--sp-lg);
}

.testimonial__stars {
  display: flex;
  gap: 2px;
  margin-bottom: var(--sp-sm);
  color: var(--color-primary);
}

.testimonial__stars svg {
  width: 18px;
  height: 18px;
}

.testimonial__quote {
  font-size: 0.9375rem;
  font-style: italic;
  color: var(--color-text);
  line-height: var(--lh-relaxed);
  margin-bottom: var(--sp-md);
}

.testimonial__author {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
}

.testimonial__avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-circle);
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-sm);
  font-weight: var(--fw-bold);
  color: var(--color-primary);
  flex-shrink: 0;
}

.testimonial__name {
  font-size: 0.875rem;
  font-weight: var(--fw-semibold);
  color: var(--color-text);
}

.testimonial__role {
  font-size: var(--fs-xs);
  color: var(--color-text-secondary);
}

/* ---- Carousel Pagination ---- */
.carousel-dots {
  display: flex;
  justify-content: center;
  gap: var(--sp-xs);
  margin-top: var(--sp-lg);
}

.carousel-dots__dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-pill);
  background: var(--color-border);
  border: none;
  cursor: pointer;
  transition: width var(--ease-normal), background var(--ease-normal);
  padding: 0;
}

.carousel-dots__dot.is-active {
  width: 24px;
  background: var(--color-primary);
}

/* ---- Form Elements ---- */
.input {
  width: 100%;
  padding: 12px 20px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-pill);
  font-size: var(--fs-base);
  background: var(--color-bg);
  transition: border-color var(--ease-fast);
  outline: none;
}

.input:focus {
  border-color: var(--color-primary);
}

.input::placeholder {
  color: var(--color-text-secondary);
}

.form-inline {
  display: flex;
  flex-direction: column;
  gap: var(--sp-sm);
}

@media (min-width: 600px) {
  .form-inline {
    flex-direction: row;
  }

  .form-inline .input {
    flex: 1;
  }

  .form-inline .btn {
    flex-shrink: 0;
  }
}

/* ---- Accordion ---- */
.accordion-item {
  border-bottom: 2px solid var(--color-border);
}

.accordion-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 20px 0;
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  color: var(--color-text);
  text-align: left;
  background: none;
  border: none;
  cursor: pointer;
  gap: var(--sp-md);
}

.accordion-trigger:hover {
  color: var(--color-primary);
}

.accordion-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  color: var(--color-primary);
  transition: transform var(--ease-normal);
}

.accordion-item.is-open .accordion-icon {
  transform: rotate(45deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--ease-normal);
}

.accordion-content__inner {
  padding-bottom: 20px;
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: var(--lh-relaxed);
}

/* ---- Section Header ---- */
.section-header {
  text-align: center;
  margin-bottom: var(--sp-2xl);
}

.section-header h2 {
  margin-bottom: var(--sp-sm);
}

.section-header p {
  max-width: 540px;
  margin: 0 auto;
}

.section-header__accent {
  display: none;
}

/* ---- Price Display ---- */
.price {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  flex-wrap: wrap;
  justify-content: center;
}

.price__current {
  font-size: var(--fs-xl);
  font-weight: var(--fw-bold);
  color: var(--color-text);
}

.price__original {
  font-size: var(--fs-base);
  color: var(--color-text-secondary);
  text-decoration: line-through;
}

.price__discount {
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  color: var(--color-text-inverse);
  background: var(--color-accent);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
}

/* ---- Checklist ---- */
.checklist {
  text-align: left;
}

.checklist li {
  display: flex;
  align-items: center;
  gap: var(--sp-xs);
  padding: var(--sp-2xs) 0;
  font-size: 0.9375rem;
  color: var(--color-text);
}

.checklist li svg {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  flex-shrink: 0;
}

/* ---- Spec Table ---- */
.spec-table {
  width: 100%;
}

.spec-row {
  display: flex;
  justify-content: space-between;
  padding: var(--sp-sm) var(--sp-md);
  font-size: 0.875rem;
}

.spec-row:nth-child(odd) {
  background: var(--color-bg);
  border-radius: var(--radius-sm);
}

.spec-row:nth-child(even) {
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
}

.spec-row__label {
  color: var(--color-text-secondary);
}

.spec-row__value {
  font-weight: var(--fw-semibold);
  color: var(--color-text);
  text-align: right;
}

/* ---- Press Logos ---- */
.press-logos {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-xl);
  flex-wrap: wrap;
}

.press-logos__item {
  font-size: 0.875rem;
  font-weight: var(--fw-bold);
  color: var(--color-text-secondary);
  opacity: 0.5;
  transition: opacity var(--ease-fast);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.press-logos__item:hover {
  opacity: 1;
}

/* ---- Guarantee Strip ---- */
.guarantee-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--sp-md);
  font-size: var(--fs-xs);
  color: var(--color-text-secondary);
}

.guarantee-strip span {
  display: flex;
  align-items: center;
  gap: var(--sp-2xs);
}

.guarantee-strip svg {
  width: 16px;
  height: 16px;
  color: var(--color-success);
}

/* ---- Mobile Component Adjustments ---- */
@media (max-width: 480px) {
  .btn {
    padding: 10px 20px;
    font-size: 0.9375rem;
  }

  .btn--large {
    padding: 14px 24px;
    font-size: var(--fs-base);
  }

  .btn--small {
    padding: 6px 16px;
    font-size: var(--fs-xs);
  }

  .section-header h2 {
    margin-bottom: var(--sp-xs);
  }

  .card__body {
    padding: var(--sp-sm);
  }

  .card__title {
    font-size: 0.9375rem;
  }

  .card__text {
    font-size: 0.8125rem;
  }

  .price__current {
    font-size: var(--fs-lg);
  }

  .trust-badge__icon {
    width: 36px;
    height: 36px;
  }

  .trust-badge__icon svg {
    width: 18px;
    height: 18px;
  }

  .trust-badge__label {
    font-size: 0.8125rem;
  }

  .trust-badge__sub {
    font-size: 0.6875rem;
  }

  .guarantee-strip {
    flex-direction: column;
    align-items: center;
    gap: var(--sp-xs);
  }
}