/* ============================================
   FUTURE DIGITAL — Brand Sections
   Apple-style showcase for 2SHTEC, Berger, Coltex
   ============================================ */

/* ── Shared Brand Section ── */
.brand-section {
  position: relative;
  overflow: hidden;
}

.brand-section__header {
  text-align: center;
  max-width: var(--container-narrow);
  margin: 0 auto var(--space-16);
}

.brand-section__label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-6);
}

.brand-section__title {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-6);
}

.brand-section__desc {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

/* ── About Section ── */
.about {
  background: var(--bg-secondary);
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.about__headline {
  font-size: var(--text-3xl);
  line-height: var(--leading-snug);
  margin-bottom: var(--space-6);
}

.about__text {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-6);
}

.about__visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 2/1;
  background: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.about__visual img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* ── 2SHTEC Section ── */
.brand-2shtec {
  background: var(--bg-primary);
}

.brand-2shtec .brand-section__label {
  background: rgba(45, 140, 240, 0.1);
  color: var(--accent-2shtec);
  border: 1px solid rgba(45, 140, 240, 0.2);
}

.brand-2shtec .line-accent {
  background: var(--accent-2shtec);
}

.brand-2shtec .brand-section__title {
  background: linear-gradient(135deg, var(--accent-2shtec) 0%, #60a5fa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 2SHTEC Feature Grid */
.ink-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  margin-bottom: var(--space-16);
}

.ink-feature-card {
  background: var(--bg-glass);
  border: 1px solid var(--bg-glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: all var(--duration-normal) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.ink-feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-2shtec), transparent);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.ink-feature-card:hover {
  background: var(--bg-glass-hover);
  border-color: rgba(45, 140, 240, 0.2);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow-blue);
}

.ink-feature-card:hover::before {
  opacity: 1;
}

.ink-feature-card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(45, 140, 240, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: var(--space-6);
}

.ink-feature-card__title {
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-3);
  color: var(--text-headline);
}

.ink-feature-card__text {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

/* 2SHTEC Product Series */
.ink-series {
  display: flex;
  gap: var(--space-4);
  overflow-x: auto;
  padding-bottom: var(--space-4);
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
}

.ink-series::-webkit-scrollbar {
  display: none;
}

.ink-series-card {
  flex: 0 0 280px;
  scroll-snap-align: start;
  background: linear-gradient(145deg, var(--bg-card), var(--bg-tertiary));
  border: 1px solid var(--bg-glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: all var(--duration-normal) var(--ease-out);
}

.ink-series-card:hover {
  border-color: rgba(45, 140, 240, 0.3);
  transform: translateY(-2px);
}

.ink-series-card__name {
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  color: var(--accent-2shtec);
  margin-bottom: var(--space-2);
}

.ink-series-card__desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

/* ── Berger Section ── */
.brand-berger {
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}

/* Berger Background Watermark */
.berger-bg-logo {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 700px;
  height: 700px;
  opacity: 0.15;
  filter: blur(8px);
  pointer-events: none;
  z-index: 0;
}

.berger-bg-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.brand-berger .container {
  position: relative;
  z-index: 1;
}

.brand-berger .brand-section__label {
  background: rgba(34, 197, 94, 0.1);
  color: var(--accent-berger);
  border: 1px solid rgba(34, 197, 94, 0.2);
}

.brand-berger .line-accent {
  background: var(--accent-berger);
}

.brand-berger .brand-section__title {
  background: linear-gradient(135deg, var(--accent-berger) 0%, #86efac 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Berger Parallax Cards */
.paper-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

.paper-card {
  background: var(--bg-glass);
  border: 1px solid var(--bg-glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  transition: all var(--duration-slow) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.paper-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(
    135deg,
    rgba(34, 197, 94, 0.05) 0%,
    transparent 50%
  );
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.paper-card:hover {
  transform: translateY(-6px);
  border-color: rgba(34, 197, 94, 0.2);
  box-shadow: var(--shadow-glow-green);
}

.paper-card:hover::after {
  opacity: 1;
}

.paper-card__number {
  font-size: var(--text-4xl);
  font-weight: var(--weight-bold);
  color: rgba(34, 197, 94, 0.15);
  line-height: 1;
  margin-bottom: var(--space-4);
}

.paper-card__title {
  font-size: var(--text-xl);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-4);
  color: var(--text-headline);
  position: relative;
  z-index: 1;
}

.paper-card__text {
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  position: relative;
  z-index: 1;
}

/* ── Berger Visuals — Side by Side ── */
.berger-visuals {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-8);
  align-items: center;
  max-width: 900px;
  margin: 0 auto var(--space-16);
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xl);
}

.berger-visuals__logo {
  display: flex;
  align-items: center;
  justify-content: center;
}

.berger-visuals__logo img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
}

.berger-visuals__product {
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.berger-visuals__product img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

@media (max-width: 768px) {
  .berger-visuals {
    grid-template-columns: 1fr;
    max-width: 500px;
  }

  .berger-visuals__logo {
    max-width: 200px;
    margin: 0 auto;
  }
}

/* ── Coltex Section ── */
.brand-coltex {
  background: var(--bg-primary);
}

.brand-coltex .brand-section__label {
  background: rgba(139, 92, 246, 0.1);
  color: var(--accent-coltex);
  border: 1px solid rgba(139, 92, 246, 0.2);
}

.brand-coltex .line-accent {
  background: var(--accent-coltex);
}

.brand-coltex .brand-section__title {
  background: linear-gradient(135deg, var(--accent-coltex) 0%, #c4b5fd 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Coltex Banner — Full-width product showcase */
.coltex-banner {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin-bottom: var(--space-16);
  background: #f0f0f2;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.coltex-banner img {
  width: 100%;
  height: auto;
  display: block;
}

/* Coltex Feature Grid */
.coltex-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.machine-feature-item {
  display: flex;
  gap: var(--space-5);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  background: var(--bg-glass);
  border: 1px solid var(--bg-glass-border);
  transition: all var(--duration-normal) var(--ease-out);
}

.machine-feature-item:hover {
  background: var(--bg-glass-hover);
  border-color: rgba(139, 92, 246, 0.2);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow-purple);
}

.machine-feature-item__icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(139, 92, 246, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.machine-feature-item__title {
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-2);
  color: var(--text-headline);
}

.machine-feature-item__text {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

/* ── Stats Section ── */
.stats {
  background: var(--bg-secondary);
  border-top: 1px solid var(--bg-glass-border);
  border-bottom: 1px solid var(--bg-glass-border);
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
  text-align: center;
}

.stat-item {
  padding: var(--space-8) var(--space-4);
}

.stat-item__number {
  font-size: var(--text-4xl);
  font-weight: var(--weight-bold);
  color: var(--text-headline);
  margin-bottom: var(--space-3);
  line-height: 1;
}

.stat-item__number .stat-suffix {
  font-size: 0.6em;
  color: var(--accent-2shtec);
}

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

/* ── Responsive ── */
@media (max-width: 1024px) {
  .ink-features {
    grid-template-columns: repeat(2, 1fr);
  }

  .coltex-features {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
}

@media (max-width: 768px) {
  .about__grid {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }

  .ink-features {
    grid-template-columns: 1fr;
  }

  .paper-features {
    grid-template-columns: 1fr;
  }

  .stats__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
  }

  .brand-section__header {
    margin-bottom: var(--space-10);
  }
}

@media (max-width: 480px) {
  .stats__grid {
    grid-template-columns: 1fr;
  }

  .ink-series-card {
    flex: 0 0 240px;
  }
}