/* ============================================================
   CALVION TECHNOLOGIES
   components.css — Reusable UI Components
   ============================================================ */


/* ──────────────────────────────────────────────────────────
   SECTION HEADER
   Used above every major section for consistent hierarchy.
   ────────────────────────────────────────────────────────── */

.section-header {
  margin-bottom: var(--space-16);
}

.section-header--center {
  text-align: center;
}

.section-header--center .section-header__desc {
  margin-left: auto;
  margin-right: auto;
}

.section-header__eyebrow {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

.section-header__eyebrow--muted {
  color: var(--color-text-tertiary);
}

.section-header__eyebrow--inverse {
  color: rgba(255, 255, 255, 0.45);
}

.section-header__title {
  font-size: var(--text-3xl);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-tight);
  color: var(--color-text-primary);
  margin-bottom: var(--space-5);
}

.section-header__title--inverse {
  color: var(--color-text-inverse);
}

.section-header__desc {
  font-size: var(--text-md);
  line-height: var(--leading-relaxed);
  color: var(--color-text-secondary);
  max-width: var(--container-narrow);
}

.section-header__desc--inverse {
  color: var(--color-text-inverse-muted);
}

@media (max-width: 768px) {
  .section-header {
    margin-bottom: var(--space-10);
  }
  .section-header__title {
    font-size: var(--text-2xl);
  }
}


/* ──────────────────────────────────────────────────────────
   BUTTONS
   ────────────────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-primary);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  letter-spacing: 0.02em;
  line-height: 1;
  padding: 0.875rem 1.625rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background-color var(--transition-fast),
              color var(--transition-fast),
              border-color var(--transition-fast),
              box-shadow var(--transition-fast);
  white-space: nowrap;
}

/* Primary */
.btn--primary {
  background-color: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}

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

/* Ghost */
.btn--ghost {
  background-color: transparent;
  color: var(--color-text-primary);
  border-color: var(--color-border-strong);
}

.btn--ghost:hover {
  border-color: var(--color-text-primary);
  background-color: var(--color-off-white);
}

/* Ghost inverse (on dark bg) */
.btn--ghost-inverse {
  background-color: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn--ghost-inverse:hover {
  border-color: rgba(255, 255, 255, 0.7);
  background-color: rgba(255, 255, 255, 0.06);
}

/* Small */
.btn--sm {
  font-size: var(--text-xs);
  padding: 0.625rem 1.125rem;
}

/* Arrow icon inside button */
.btn__arrow {
  transition: transform var(--transition-fast);
}

.btn:hover .btn__arrow {
  transform: translateX(3px);
}


/* ──────────────────────────────────────────────────────────
   TECHNOLOGY CARD
   ────────────────────────────────────────────────────────── */

.tech-card {
  display: flex;
  flex-direction: column;
  background-color: var(--color-white);
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--transition-base);
  position: relative;
  overflow: hidden;
}

/* Remove double borders in grid */
.tech-card:nth-child(3n) {
  border-right: none;
}

.tech-card__image-wrap {
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background-color: var(--color-light-gray);
  position: relative;
}

.tech-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(30%);
  transition: transform var(--transition-slow),
              filter var(--transition-slow);
}

.tech-card:hover .tech-card__image {
  transform: scale(1.03);
  filter: grayscale(0%);
}

.tech-card__body {
  padding: var(--space-8) var(--space-8) var(--space-6);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.tech-card__label {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-3);
}

.tech-card__title {
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-snug);
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
}

.tech-card__desc {
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
  color: var(--color-text-secondary);
  flex: 1;
  margin-bottom: var(--space-6);
}

.tech-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-primary);
  text-decoration: none;
  position: relative;
  padding-bottom: 2px;
}

.tech-card__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-accent);
  transition: width var(--transition-base);
}

.tech-card:hover .tech-card__link::after {
  width: 100%;
}

.tech-card__link-arrow {
  transition: transform var(--transition-fast);
}

.tech-card:hover .tech-card__link-arrow {
  transform: translateX(3px);
}

/* Responsive: 2-col border fix */
@media (max-width: 1024px) {
  .tech-card:nth-child(3n) {
    border-right: 1px solid var(--color-border);
  }
  .tech-card:nth-child(2n) {
    border-right: none;
  }
}

@media (max-width: 768px) {
  .tech-card:nth-child(n) {
    border-right: none;
  }
  .tech-card__body {
    padding: var(--space-6);
  }
}


/* ──────────────────────────────────────────────────────────
   INDUSTRY CARD (With Drawer Effect)
   ────────────────────────────────────────────────────────── */

.industry-card-wrapper {
  position: relative;
  display: flex;
  height: 100%;
}

.industry-card-wrapper:hover {
  z-index: 10;
}

.industry-card-drawer {
  position: absolute;
  top: -5%;
  left: -5%;
  width: 110%;
  height: 110%;
  border-radius: var(--radius-base, 8px);
  overflow: hidden;
  z-index: 1; /* Below the main card */
  transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1), 
              opacity 0.4s ease;
  box-shadow: var(--shadow-md);
  opacity: 0; /* Hidden by default */
  transform: translateX(0) translateY(0) scale(0.95);
  background-color: var(--color-dark-gray);
}

.industry-card-drawer::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.6) 0%, rgba(0,0,0,0.1) 100%);
  z-index: 1;
}

.industry-card-drawer img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  z-index: 0;
}

/* Hover reveal effect - standard right slide */
.industry-card-wrapper:hover .industry-card-drawer {
  opacity: 1;
  transform: translateX(45%) scale(0.98) rotate(1deg);
}

/* Adjust direction for the 3rd column so it doesn't overflow the screen */
.industry-card-wrapper:nth-child(3n):hover .industry-card-drawer {
  transform: translateX(-45%) scale(0.98) rotate(-1deg);
}

/* Custom rule for Card 14 (Full width) to slide upwards */
.industry-card-wrapper--up:hover .industry-card-drawer {
  opacity: 1;
  transform: translateY(-20%) scale(0.98) rotate(0deg) !important;
}

/* Mobile behavior - scale down interaction */
@media (max-width: 900px) {
  .industry-card-wrapper:nth-child(2n):hover .industry-card-drawer {
    transform: translateX(-40%) scale(0.98) rotate(-1deg);
  }
  .industry-card-wrapper:nth-child(2n-1):hover .industry-card-drawer {
    transform: translateX(40%) scale(0.98) rotate(1deg);
  }
  .industry-card-wrapper--up:hover .industry-card-drawer {
    transform: translateY(-15%) scale(0.98) rotate(0deg) !important;
  }
}
@media (max-width: 540px) {
  /* No horizontal slide on small screens to prevent overflow */
  .industry-card-wrapper:hover .industry-card-drawer {
    transform: translateY(15px) scale(0.98);
  }
  .industry-card-wrapper:nth-child(n):hover .industry-card-drawer {
    transform: translateY(15px) scale(0.98);
  }
  .industry-card-wrapper--up:hover .industry-card-drawer {
    transform: translateY(-10px) scale(0.98) rotate(0deg) !important;
  }
}

.industry-card {
  padding: var(--space-8);
  border: 1px solid var(--color-border);
  background-color: var(--color-white);
  transition: border-color var(--transition-base),
              box-shadow var(--transition-base);
  position: relative;
  z-index: 2; /* Always above the drawer */
  flex: 1; /* Stretch to fill wrapper */
  border-radius: var(--radius-base, 8px); /* Optional: ensures clean edges */
  display: flex;
  flex-direction: column;
}

.industry-card:hover {
  border-color: var(--color-mid-gray);
  box-shadow: var(--shadow-lg); /* Slightly larger shadow when hovered to pop */
}

.industry-card__number {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-caps);
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-5);
  display: block;
}

.industry-card__title {
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-snug);
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
}

.industry-card__desc {
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
  color: var(--color-text-secondary);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.industry-card__accent {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width var(--transition-slow);
}

.industry-card-wrapper:hover .industry-card__accent {
  width: 100%;
}


/* ──────────────────────────────────────────────────────────
   METRIC / STAT
   ────────────────────────────────────────────────────────── */

.metric {
  text-align: center;
  padding: var(--space-10) var(--space-8);
}

.metric__number {
  font-size: var(--text-4xl);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-tight);
  color: var(--color-white);
  line-height: 1;
  margin-bottom: var(--space-3);
}

.metric__label {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--color-text-inverse-muted);
  line-height: var(--leading-snug);
}

@media (max-width: 768px) {
  .metric__number {
    font-size: var(--text-3xl);
  }
}

@media (max-width: 480px) {
  .metric {
    padding: var(--space-6) var(--space-4);
  }
  .metric__number {
    font-size: var(--text-2xl);
  }
}


/* ──────────────────────────────────────────────────────────
   APPLICATION CATEGORY BLOCK
   ────────────────────────────────────────────────────────── */

.app-category {
  padding: var(--space-8) 0;
  border-bottom: 1px solid var(--color-border);
}

.app-category:first-child {
  border-top: 1px solid var(--color-border);
}

.app-category__header {
  display: flex;
  align-items: baseline;
  gap: var(--space-6);
  margin-bottom: var(--space-5);
}

.app-category__title {
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  letter-spacing: 0;
  color: var(--color-text-primary);
  min-width: 220px;
  flex-shrink: 0;
}

.app-category__items {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

@media (max-width: 1024px) {
  .app-category__items {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .app-category__items {
    grid-template-columns: 1fr;
  }
}

.app-tag {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: var(--weight-regular);
  color: var(--color-text-secondary);
  background-color: var(--color-off-white);
  border: 1px solid var(--color-border);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  line-height: 1.4;
  transition: border-color var(--transition-fast),
              color var(--transition-fast);
}

.app-tag:hover {
  border-color: var(--color-mid-gray);
  color: var(--color-text-primary);
}

@media (max-width: 768px) {
  .app-category__header {
    flex-direction: column;
    gap: var(--space-3);
  }
  .app-category__title {
    min-width: unset;
  }
}


/* ──────────────────────────────────────────────────────────
   R&D PILLAR CARD (dark section)
   ────────────────────────────────────────────────────────── */

.rnd-pillar {
  padding: var(--space-8);
  border: 1px solid var(--color-border-inverse);
  transition: border-color var(--transition-base),
              background-color var(--transition-base);
}

.rnd-pillar:hover {
  border-color: rgba(255, 255, 255, 0.22);
  background-color: rgba(255, 255, 255, 0.03);
}

.rnd-pillar__number {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-caps);
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: var(--space-6);
  display: block;
}

.rnd-pillar__title {
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-tight);
  color: var(--color-white);
  margin-bottom: var(--space-3);
}

.rnd-pillar__desc {
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
  color: var(--color-text-inverse-muted);
}


/* ──────────────────────────────────────────────────────────
   LINK WITH ANIMATED UNDERLINE
   ────────────────────────────────────────────────────────── */

.link-underline {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-primary);
  position: relative;
  padding-bottom: 2px;
  text-decoration: none;
}

.link-underline::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-accent);
  transition: width var(--transition-base);
}

.link-underline:hover::after {
  width: 100%;
}

.link-underline--inverse {
  color: var(--color-white);
}

.link-underline--inverse::after {
  background-color: rgba(255, 255, 255, 0.5);
}


/* ──────────────────────────────────────────────────────────
   Application Card
   ────────────────────────────────────────────────────────── */

.category-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--color-border);
  background-color: var(--color-white);
  transition: border-color var(--transition-base),
              box-shadow var(--transition-base);
  position: relative;
  overflow: hidden;
}

.category-card:hover {
  border-color: var(--color-mid-gray);
  box-shadow: var(--shadow-md);
}

.category-card__image-wrap {
  overflow: hidden;
  background-color: var(--color-light-gray);
  aspect-ratio: 4 / 3;
}

.category-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  transition: transform var(--transition-slow);
}

.category-card:hover .category-card__image {
  transform: scale(1.04);
}

.category-card__body {
  padding: var(--space-5) var(--space-5) var(--space-6);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.category-card__number {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-caps);
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-3);
  display: block;
}

.category-card__title {
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-snug);
  color: var(--color-text-primary);
}

.category-card__desc {
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
  color: var(--color-text-secondary);
  margin-top: var(--space-2);
}

.category-card__accent {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width var(--transition-slow);
}

.category-card:hover .category-card__accent {
  width: 100%;
}