/* ============================================================
   Reusable Components
   ============================================================ */

/* ============================================================
   BUTTONS
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.625rem 1.5rem;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  line-height: 1;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  white-space: nowrap;
  cursor: pointer;
  border: 1px solid transparent;
}

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

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

.btn--primary:hover {
  background: var(--color-btn-hover);
  color: var(--color-btn-text);
}

.btn--accent {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}

.btn--accent:hover {
  background: var(--color-primary-hover);
  color: var(--color-text-inverse);
}

.btn--outline {
  background: transparent;
  color: var(--color-btn-bg);
  border: 1px solid var(--color-border);
}

.btn--outline:hover {
  background: var(--color-surface-alt);
  border-color: var(--color-btn-bg);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text);
}

.btn--ghost:hover {
  background: var(--color-surface-alt);
}

.btn--lg {
  padding: 0.8125rem 2rem;
  font-size: var(--text-base);
}

.btn--sm {
  padding: 0.4375rem 1rem;
  font-size: var(--text-xs);
}

.btn--icon {
  padding: 0.5rem;
  border-radius: var(--radius-sm);
}

/* ============================================================
   CARDS
   ============================================================ */

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-8);
  transition: box-shadow var(--transition-base);
}

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

.card--clickable {
  cursor: pointer;
}

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

.card--flat {
  box-shadow: none;
}

/* ============================================================
   PRODUCT CARD
   ============================================================ */

.product-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow var(--transition-base);
}

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

.product-card__image {
  aspect-ratio: 4 / 3;
  background: var(--color-surface-alt);
  overflow: hidden;
}

.product-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.product-card:hover .product-card__image img {
  transform: scale(1.03);
}

.product-card__body {
  padding: var(--space-6);
}

.product-card__title {
  font-family: var(--font-editorial);
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-2);
  color: var(--color-text);
}

.product-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-4);
}

.product-card__features {
  margin-bottom: var(--space-4);
  padding: 0;
}

.product-card__features li {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding-left: var(--space-5);
  position: relative;
  margin-bottom: var(--space-1);
}

.product-card__features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}

.product-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-primary);
}

.product-card__link:hover {
  color: var(--color-primary-hover);
}

/* ============================================================
   FEATURE ITEM (Icon + Title + Description)
   ============================================================ */

.feature-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.feature-item__icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--color-primary-muted);
  color: var(--color-primary);
  margin-bottom: var(--space-1);
}

.feature-item__icon i {
  font-size: 1.25rem;
}

.feature-item__title {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: var(--color-text);
}

.feature-item__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
}

/* ============================================================
   CTA SECTION
   ============================================================ */

.cta-section {
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-16) var(--space-8);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  translate: -50% 0;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(212,167,106,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.cta-section__title {
  font-family: var(--font-editorial);
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-4);
  position: relative;
}

.cta-section__text {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 480px;
  margin-inline: auto;
  margin-bottom: var(--space-8);
  line-height: var(--leading-relaxed);
  position: relative;
}

.cta-section__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  position: relative;
}

/* ============================================================
   STATS / COUNTERS
   ============================================================ */

.stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

.stat-item {
  text-align: center;
}

.stat-item__number {
  font-family: var(--font-editorial);
  font-size: var(--text-4xl);
  font-weight: var(--font-bold);
  color: var(--color-primary);
  letter-spacing: var(--tracking-tight);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.stat-item__label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

/* ============================================================
   TESTIMONIAL CARD
   ============================================================ */

.testimonial {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-8);
}

.testimonial__quote {
  font-family: var(--font-editorial);
  font-size: var(--text-lg);
  font-style: italic;
  color: var(--color-text);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-6);
}

.testimonial__quote::before {
  content: '\201C';
  color: var(--color-accent);
  font-size: 2em;
  line-height: 0;
  vertical-align: -0.35em;
  margin-right: 0.05em;
}

.testimonial__author {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text);
}

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

/* ============================================================
   SPECIFICATION TABLE
   ============================================================ */

.specs-table {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.specs-table__row {
  display: grid;
  grid-template-columns: 1fr 2fr;
  border-bottom: 1px solid var(--color-border);
}

.specs-table__row:last-child {
  border-bottom: none;
}

.specs-table__label {
  padding: var(--space-4) var(--space-6);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text);
  background: var(--color-surface-alt);
}

.specs-table__value {
  padding: var(--space-4) var(--space-6);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ============================================================
   APPLICATION SCENARIO CARD
   ============================================================ */

.scenario-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.scenario-card__image {
  aspect-ratio: 16 / 9;
  background: var(--color-surface-alt);
  overflow: hidden;
}

.scenario-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.scenario-card__body {
  padding: var(--space-6);
}

.scenario-card__tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-primary);
  background: var(--color-primary-muted);
  padding: 0.2em 0.75em;
  border-radius: var(--radius-pill);
  margin-bottom: var(--space-3);
}

.scenario-card__title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-2);
}

.scenario-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
}

/* ============================================================
   B2B BENEFITS LIST
   ============================================================ */

.benefits-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  padding: 0;
}

.benefits-list__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  color: var(--color-text);
}

.benefits-list__item::before {
  content: '';
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 0.15em;
  background: var(--color-primary-muted);
  border-radius: var(--radius-sm);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 256 256'%3E%3Cpath fill='%232C5F4E' d='M229.66 77.66l-128 128a8 8 0 0 1-11.32 0l-56-56a8 8 0 0 1 11.32-11.32L96 188.69L218.34 66.34a8 8 0 0 1 11.32 11.32Z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 12px;
}

/* ============================================================
   BLOG CARD
   ============================================================ */

.blog-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow var(--transition-base);
}

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

.blog-card__image {
  aspect-ratio: 16 / 9;
  background: var(--color-surface-alt);
  overflow: hidden;
}

.blog-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.blog-card:hover .blog-card__image img {
  transform: scale(1.03);
}

.blog-card__body {
  padding: var(--space-6);
}

.blog-card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.blog-card__tag {
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-primary);
  background: var(--color-primary-muted);
  padding: 0.2em 0.75em;
  border-radius: var(--radius-pill);
}

.blog-card__date {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.blog-card__title {
  font-family: var(--font-editorial);
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-2);
  color: var(--color-text);
  line-height: var(--leading-snug);
}

.blog-card__excerpt {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-4);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-primary);
}

.blog-card__link:hover {
  color: var(--color-primary-hover);
}

/* ============================================================
   VALUE PROP CARD
   ============================================================ */

.value-card {
  text-align: center;
  padding: var(--space-8) var(--space-6);
}

.value-card__icon {
  width: 48px;
  height: 48px;
  margin-inline: auto;
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--color-primary-muted);
  color: var(--color-primary);
}

.value-card__icon i {
  font-size: 1.5rem;
}

.value-card__title {
  font-family: var(--font-editorial);
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-2);
}

.value-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
}

/* ============================================================
   TEAM CARD
   ============================================================ */

.team-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.team-card__photo {
  aspect-ratio: 1;
  background: var(--color-surface-alt);
  overflow: hidden;
}

.team-card__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.team-card__body {
  padding: var(--space-6);
  text-align: center;
}

.team-card__name {
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-1);
}

.team-card__title {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}

.team-card__bio {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
}

/* ============================================================
   CERTIFICATION BADGES ROW
   ============================================================ */

.cert-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-10);
  flex-wrap: wrap;
  padding: var(--space-8) 0;
}

.cert-row__item {
  height: 48px;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}

.cert-row__item:hover {
  opacity: 1;
}

.cert-row__item img {
  height: 100%;
  width: auto;
}

/* ============================================================
   BREADCRUMBS
   ============================================================ */

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  padding-block: var(--space-4);
  overflow-x: auto;
  white-space: nowrap;
}

.breadcrumbs__item {
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.breadcrumbs__item:hover {
  color: var(--color-text);
}

.breadcrumbs__item--current {
  color: var(--color-text);
  font-weight: var(--font-medium);
}

.breadcrumbs__separator {
  color: var(--color-border);
  user-select: none;
}

/* ============================================================
   BACK TO TOP
   ============================================================ */

.back-to-top {
  position: fixed;
  bottom: var(--space-8);
  right: var(--space-8);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  z-index: 50;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all var(--transition-base);
  cursor: pointer;
}

.back-to-top--visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--color-surface-alt);
  box-shadow: var(--shadow-card);
}

/* ============================================================
   FORM ELEMENTS
   ============================================================ */

.form-group {
  margin-bottom: var(--space-6);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.form-label--required::after {
  content: ' *';
  color: var(--color-error);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.6875rem 0.875rem;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
}

.form-input--error,
.form-textarea--error,
.form-select--error {
  border-color: var(--color-error);
}

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

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 256 256'%3E%3Cpath fill='%23787774' d='M213.66 101.66l-80 80a8 8 0 0 1-11.32 0l-80-80a8 8 0 0 1 11.32-11.32L128 164.69l74.34-74.35a8 8 0 0 1 11.32 11.32Z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.875rem center;
  padding-right: 2.5rem;
}

.form-error {
  font-size: var(--text-xs);
  color: var(--color-error);
  margin-top: var(--space-1);
  display: none;
}

.form-error--visible {
  display: block;
}

.form-success {
  background: var(--color-success-bg);
  color: var(--color-success);
  padding: var(--space-5) var(--space-6);
  border-radius: var(--radius-md);
  border: 2px solid var(--color-success);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  text-align: center;
  display: none;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.form-success--visible {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   FAQ ACCORDION (using details/summary)
   ============================================================ */

.faq-list {
  border-top: 1px solid var(--color-border);
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  width: 100%;
  padding: var(--space-5) 0;
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  color: var(--color-text);
  cursor: pointer;
  text-align: left;
  list-style: none;
}

.faq-item__question::-webkit-details-marker {
  display: none;
}

.faq-item__question::after {
  content: '';
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 256 256'%3E%3Cpath fill='%23787774' d='M224 128a8 8 0 0 1-8 8h-80v80a8 8 0 0 1-16 0v-80H40a8 8 0 0 1 0-16h80V40a8 8 0 0 1 16 0v80h80a8 8 0 0 1 8 8Z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  transition: transform var(--transition-base);
}

details[open] .faq-item__question::after {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 256 256'%3E%3Cpath fill='%23787774' d='M224 128a8 8 0 0 1-8 8H40a8 8 0 0 1 0-16h176a8 8 0 0 1 8 8Z'/%3E%3C/svg%3E");
}

.faq-item__answer {
  padding-bottom: var(--space-5);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
}

/* ============================================================
   COMPARISON TABLE
   ============================================================ */

.compare-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.compare-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
}

.compare-table thead th {
  padding: var(--space-4) var(--space-6);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  text-align: left;
  background: var(--color-surface-alt);
  border-bottom: 1px solid var(--color-border);
}

.compare-table thead th:first-child {
  min-width: 180px;
}

.compare-table tbody td {
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
}

.compare-table tbody tr:last-child td {
  border-bottom: none;
}

.compare-table tbody tr:hover td {
  background: var(--color-surface-alt);
}

.compare-table__check {
  color: var(--color-success);
  font-weight: var(--font-semibold);
}

.compare-table__dash {
  color: var(--color-border);
}

/* ============================================================
   SCROLL-REVEAL (IntersectionObserver-powered)
   ============================================================ */

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--transition-reveal), transform var(--transition-reveal);
}

.reveal--visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--transition-reveal), transform var(--transition-reveal);
}

.reveal-stagger--visible > *:nth-child(1) { transition-delay: 0ms; }
.reveal-stagger--visible > *:nth-child(2) { transition-delay: 80ms; }
.reveal-stagger--visible > *:nth-child(3) { transition-delay: 160ms; }
.reveal-stagger--visible > *:nth-child(4) { transition-delay: 240ms; }
.reveal-stagger--visible > *:nth-child(5) { transition-delay: 320ms; }
.reveal-stagger--visible > *:nth-child(6) { transition-delay: 400ms; }

.reveal-stagger--visible > * {
  opacity: 1;
  transform: translateY(0);
}