.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
  min-height: 48px;
  padding: 0.8rem 1.3rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 700;
  transition:
    transform var(--transition-fast),
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--primary {
  color: #fff;
  background: linear-gradient(135deg, var(--color-blue), #0e3e9d);
  box-shadow: 0 18px 36px rgba(21, 84, 211, 0.24);
}

.btn--primary:hover {
  box-shadow: 0 22px 46px rgba(21, 84, 211, 0.28);
}

.btn--secondary {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.16);
}

.btn--secondary:hover {
  background: rgba(255, 255, 255, 0.16);
}

.btn--ghost {
  color: var(--color-ink);
  background: rgba(11, 23, 51, 0.04);
  border-color: rgba(11, 23, 51, 0.08);
}

.btn--ghost:hover {
  background: rgba(11, 23, 51, 0.08);
}

.btn--outline {
  color: var(--color-blue);
  background: transparent;
  border-color: rgba(21, 84, 211, 0.22);
}

.btn--outline:hover {
  background: rgba(21, 84, 211, 0.06);
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.pill {
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  border: 1px solid rgba(11, 23, 51, 0.08);
  background: rgba(255, 255, 255, 0.7);
  color: var(--color-body);
  font-size: var(--font-size-sm);
}

.section-grid {
  display: grid;
  gap: var(--space-8);
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border-radius: 28px;
  background: rgba(11, 23, 51, 0.08);
  box-shadow: var(--shadow-soft);
}

.metric-strip__item {
  padding: var(--space-6);
  background: rgba(255, 255, 255, 0.86);
}

.metric-strip__value {
  display: inline-flex;
  align-items: baseline;
  gap: 0.25rem;
  color: var(--color-ink);
  font-size: clamp(2rem, 1.3rem + 1.6vw, 3.1rem);
  font-weight: 700;
  line-height: 1;
}

.metric-strip__value span:last-child {
  color: var(--color-amber);
  font-size: 0.46em;
}

.metric-strip__label {
  margin-top: 0.75rem;
  font-size: var(--font-size-sm);
  color: var(--color-muted);
}

.summary-list {
  display: grid;
  gap: 0.9rem;
}

.summary-list li {
  position: relative;
  padding-left: 1.2rem;
}

.summary-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75rem;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-blue), var(--color-amber));
}

.info-block {
  display: grid;
  gap: 1rem;
  padding: var(--space-8);
  border-radius: 32px;
  border: 1px solid rgba(11, 23, 51, 0.08);
  background: var(--gradient-panel);
  box-shadow: var(--shadow-soft);
}

.info-block--dark {
  color: rgba(255, 255, 255, 0.74);
  border-color: rgba(255, 255, 255, 0.08);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02)),
    rgba(255, 255, 255, 0.03);
  box-shadow: none;
}

.info-block--dark h3,
.info-block--dark h4,
.info-block--dark strong {
  color: #fff;
}

.split-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.9fr);
  gap: var(--space-10);
  align-items: center;
}

.stacked-points {
  display: grid;
  gap: 1rem;
}

.stacked-points__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: start;
}

.stacked-points__index {
  min-width: 2.5rem;
  padding-top: 0.1rem;
  color: var(--color-blue);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.stacked-points__body h3,
.stacked-points__body h4 {
  margin-bottom: 0.4rem;
  color: var(--color-ink);
  font-size: 1.15rem;
}

.split-media {
  display: grid;
  gap: var(--space-4);
}

.split-media__caption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  font-size: var(--font-size-sm);
  color: var(--color-muted);
}

.data-cluster {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.data-cluster__item {
  padding: 1.1rem 1.2rem;
  border-radius: 20px;
  background: rgba(11, 23, 51, 0.04);
}

.data-cluster__label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: var(--font-size-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.data-cluster__value {
  color: var(--color-ink);
  font-size: 1.1rem;
  font-weight: 700;
}

.cta-band {
  overflow: hidden;
  border-radius: 36px;
  color: #fff;
  background:
    radial-gradient(circle at 0% 0%, rgba(255, 214, 148, 0.2), transparent 36%),
    radial-gradient(circle at 100% 100%, rgba(90, 156, 255, 0.2), transparent 42%),
    linear-gradient(135deg, #08152f, #0d2f67);
  box-shadow: var(--shadow-deep);
}

.cta-band__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(240px, 0.8fr);
  gap: var(--space-10);
  align-items: center;
  padding: var(--space-12);
}

.cta-band__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 1.5rem + 1.8vw, 3rem);
  line-height: 1.12;
}

.cta-band__desc {
  margin-top: var(--space-4);
  max-width: 40rem;
  color: rgba(255, 255, 255, 0.72);
}

.cta-band__meta {
  display: grid;
  gap: 0.75rem;
  color: rgba(255, 255, 255, 0.82);
  font-size: var(--font-size-sm);
}

.inline-note {
  color: var(--color-muted);
  font-size: var(--font-size-sm);
}

.mono {
  font-family: "JetBrains Mono", "Consolas", monospace;
}

@media (max-width: 960px) {
  .metric-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .split-panel,
  .cta-band__inner {
    grid-template-columns: 1fr;
  }
}

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

  .metric-strip__item,
  .info-block,
  .cta-band__inner {
    padding: var(--space-6);
  }

  .data-cluster {
    grid-template-columns: 1fr;
  }
}

/* 2026 redesign */
.btn {
  min-height: 52px;
  padding: 0.9rem 1.35rem;
  border-radius: 18px;
  letter-spacing: 0.01em;
}

.btn--primary {
  color: #0f1719;
  background: linear-gradient(135deg, #f0c68b, #c98849);
  box-shadow: 0 18px 42px rgba(201, 136, 73, 0.26);
}

.btn--primary:hover {
  box-shadow: 0 22px 48px rgba(201, 136, 73, 0.3);
}

.btn--secondary {
  color: var(--color-ink);
  background: rgba(16, 29, 33, 0.05);
  border-color: rgba(16, 29, 33, 0.12);
}

.btn--secondary:hover {
  background: rgba(16, 29, 33, 0.08);
}

.hero-home .btn--secondary,
.page-hero .btn--secondary,
.cta-band .btn--secondary {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.14);
}

.hero-home .btn--secondary:hover,
.page-hero .btn--secondary:hover,
.cta-band .btn--secondary:hover {
  background: rgba(255, 255, 255, 0.14);
}

.btn--ghost {
  color: var(--color-ink);
  background: rgba(16, 29, 33, 0.04);
  border-color: rgba(16, 29, 33, 0.1);
}

.btn--outline {
  color: var(--color-ink);
  border-color: rgba(16, 29, 33, 0.18);
}

.btn--outline:hover {
  background: rgba(16, 29, 33, 0.04);
}

.pill {
  background: rgba(16, 29, 33, 0.04);
  border-color: rgba(16, 29, 33, 0.08);
}

.metric-strip {
  gap: 0;
  border-radius: 40px;
  background: linear-gradient(135deg, #091416, #12272d);
  box-shadow: var(--shadow-deep);
}

.metric-strip__item {
  padding: var(--space-8);
  background: transparent;
  border-left: 1px solid rgba(255, 255, 255, 0.08);
}

.metric-strip__item:first-child {
  border-left: 0;
}

.metric-strip__value {
  color: #fff;
}

.metric-strip__value span:last-child {
  color: var(--color-amber-soft);
}

.metric-strip__label {
  color: rgba(255, 255, 255, 0.64);
}

.summary-list li {
  padding-left: 1.35rem;
}

.summary-list li::before {
  top: 0.8rem;
  width: 0.6rem;
  height: 1px;
  border-radius: 0;
  background: linear-gradient(90deg, var(--color-amber), var(--color-blue));
}

.info-block {
  border-radius: 34px;
  border: 1px solid rgba(255, 255, 255, 0.54);
  background: var(--gradient-panel);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(18px);
}

.data-cluster__item {
  border-radius: 24px;
  border: 1px solid rgba(16, 29, 33, 0.08);
  background: rgba(16, 29, 33, 0.04);
}

.cta-band {
  position: relative;
  border-radius: 44px;
  background:
    linear-gradient(110deg, rgba(4, 10, 12, 0.94), rgba(13, 28, 32, 0.88)),
    url("../media/atmosphere-section.jpg") center/cover no-repeat;
}

.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 0% 0%, rgba(240, 200, 143, 0.16), transparent 32%),
    radial-gradient(circle at 100% 100%, rgba(63, 124, 240, 0.18), transparent 36%);
}

.cta-band__inner {
  position: relative;
  z-index: 1;
}

/* ZTE-inspired blue and white refinement */
.btn--primary {
  color: #fff;
  background: linear-gradient(135deg, #0057d9, #2d80ff);
  box-shadow: 0 18px 40px rgba(0, 87, 217, 0.24);
}

.btn--primary:hover {
  box-shadow: 0 22px 46px rgba(0, 87, 217, 0.28);
}

.btn--secondary {
  color: var(--color-blue);
  background: #fff;
  border-color: rgba(0, 87, 217, 0.16);
}

.btn--secondary:hover {
  background: rgba(0, 87, 217, 0.04);
}

.page-hero .btn--secondary,
.cta-band .btn--secondary {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.16);
}

.hero-home .btn--secondary {
  color: var(--color-blue);
  background: #fff;
  border-color: rgba(0, 87, 217, 0.16);
}

.page-hero .btn--secondary:hover,
.cta-band .btn--secondary:hover {
  background: rgba(255, 255, 255, 0.14);
}

.hero-home .btn--secondary:hover {
  background: rgba(0, 87, 217, 0.04);
}

.btn--outline {
  color: var(--color-blue);
  border-color: rgba(0, 87, 217, 0.18);
}

.btn--outline:hover {
  background: rgba(0, 87, 217, 0.05);
}

.metric-strip {
  background: linear-gradient(135deg, #0b45b8, #1f78ff);
}

.metric-strip__item {
  border-left-color: rgba(255, 255, 255, 0.12);
}

.metric-strip__value span:last-child {
  color: rgba(255, 255, 255, 0.88);
}

.summary-list li::before {
  background: linear-gradient(90deg, var(--color-blue), var(--color-blue-soft));
}

.info-block {
  border-color: rgba(0, 87, 217, 0.08);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(244, 249, 255, 0.92));
}

.data-cluster__item {
  border-color: rgba(0, 87, 217, 0.08);
  background: rgba(0, 87, 217, 0.04);
}

.cta-band {
  background:
    radial-gradient(circle at 0% 0%, rgba(255, 255, 255, 0.16), transparent 28%),
    radial-gradient(circle at 100% 100%, rgba(104, 170, 255, 0.18), transparent 32%),
    linear-gradient(135deg, #0b45b8 0%, #0f5be2 52%, #3d8dff 100%);
}

/* 2026 final refinement */
.btn {
  min-height: 48px;
  padding: 0.82rem 1.28rem;
  border-radius: 16px;
}

.cta-band__title {
  font-size: clamp(1.62rem, 1.26rem + 0.86vw, 2.22rem);
}

/* Mobile compact rhythm */
@media (max-width: 720px) {
  .split-panel,
  .cta-band__inner {
    gap: 0.86rem;
  }

  .metric-strip {
    border-radius: 22px;
  }

  .metric-strip__item {
    padding: 0.92rem 0.86rem;
  }

  .metric-strip__label {
    margin-top: 0.46rem;
  }

  .summary-list {
    gap: 0.62rem;
  }

  .info-block {
    gap: 0.8rem;
    padding: 0.9rem;
    border-radius: 24px;
  }

  .data-cluster {
    gap: 0.55rem;
  }

  .data-cluster__item {
    padding: 0.78rem 0.88rem;
    border-radius: 18px;
  }

  .cta-band {
    border-radius: 26px;
  }

  .cta-band__inner {
    padding: 0.96rem;
  }

  .cta-band__desc {
    margin-top: 0.48rem;
  }

  .cta-band__meta {
    gap: 0.52rem;
  }
}