/* =============================================================
   page-teeth-whitening.css v2 — Premium
   ============================================================= */

/* Page hero variant */
.page-hero--tw {
  background:
    radial-gradient(ellipse at 20% 80%, rgba(196,151,59,0.12) 0%, transparent 50%),
    var(--gradient-navy-rich);
}
.page-hero--tw::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(
      -55deg,
      transparent,
      transparent 40px,
      rgba(255,255,255,0.015) 40px,
      rgba(255,255,255,0.015) 41px
    );
  pointer-events: none;
}

/* Two-col grid (shared) */
.two-col-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
  align-items: center;
}
@media (min-width: 768px) { .two-col-grid { grid-template-columns: 1fr 1fr; } }
.two-col-grid__text p {
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 1.125rem;
}
.two-col-grid__visual .placeholder-img {
  width: 100%;
  border-radius: var(--radius-lg);
  position: relative;
}
.two-col-grid__visual .placeholder-img::before {
  content: '';
  position: absolute;
  inset: 12px -12px -12px 12px;
  border: 2px solid rgba(196,151,59,0.2);
  border-radius: var(--radius-lg);
  z-index: -1;
}
.placeholder-img--navy { background: var(--gradient-navy-rich); aspect-ratio: 4/3; box-shadow: var(--shadow-xl); }
.placeholder-img--gold  { background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%); aspect-ratio: 1/1; box-shadow: var(--shadow-gold-lg); }
.placeholder-img--soft  { background: var(--color-bg-soft); border: 2px solid var(--color-border); aspect-ratio: 4/3; }

/* ── Benefit Cards ────────────────────────────────────────── */
.tw-benefits__grid { margin-top: 0.5rem; }

.benefit-card {
  text-align: center;
  padding: 2.5rem 1.75rem;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  background: #fff;
  position: relative;
  overflow: hidden;
  transition: box-shadow var(--transition-slow), transform var(--transition-slow);
}
.benefit-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient-gold-h);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition-slow);
}
.benefit-card:hover::before { transform: scaleX(1); }
.benefit-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
}

.benefit-card__icon {
  width: 68px;
  height: 68px;
  border-radius: 50%;
  background: var(--color-accent-pale);
  border: 1.5px solid rgba(196,151,59,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  color: var(--color-accent);
  transition: all var(--transition-base);
}
.benefit-card:hover .benefit-card__icon {
  background: var(--color-accent);
  color: #fff;
  box-shadow: var(--shadow-gold);
}
.benefit-card__title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}
.benefit-card__text {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  line-height: 1.7;
}

/* ── Steps ──────────────────────────────────────────────── */
.steps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 3.5rem;
  position: relative;
}
@media (min-width: 768px)  { .steps-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .steps-grid { grid-template-columns: repeat(4, 1fr); } }

.step-card {
  background: #fff;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: 2.25rem 1.5rem;
  text-align: center;
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-slow), transform var(--transition-slow);
  overflow: hidden;
}
.step-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
/* Faint gold background sweep on hover */
.step-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-accent-pale), transparent 60%);
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}
.step-card:hover::after { opacity: 1; }

.step-card__number {
  display: block;
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: 700;
  background: var(--gradient-gold-h);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 0.75rem;
  position: relative;
  z-index: 1;
}
.step-card__title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  color: var(--color-primary);
  margin-bottom: 0.625rem;
  position: relative;
  z-index: 1;
}
.step-card__text {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  line-height: 1.65;
  position: relative;
  z-index: 1;
}

/* Connector line on desktop */
@media (min-width: 1024px) {
  .step-card:not(:last-child)::before {
    content: '';
    position: absolute;
    top: 2.75rem;
    right: -1.25rem;
    width: 2.5rem;
    border-top: 2px dashed rgba(196,151,59,0.35);
    z-index: 2;
  }
}

/* ── Checklist ────────────────────────────────────────────── */
.check-list { list-style: none; margin-top: 0.5rem; }
.check-list li {
  position: relative;
  padding: 0.625rem 0 0.625rem 2rem;
  color: var(--color-text);
  font-size: var(--text-base);
  border-bottom: 1px solid var(--color-border-light);
  transition: background var(--transition-base);
}
.check-list li:last-child { border-bottom: none; }
.check-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-accent-pale);
  border: 1.5px solid rgba(196,151,59,0.3);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23C4973B' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 12px;
}

/* ── FAQ Accordion ────────────────────────────────────────── */
.faq-list { max-width: 820px; margin: 0 auto; }

.faq-item {
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-base);
}
.faq-item:first-child { border-top: 1px solid var(--color-border); }
.faq-item[open] {
  background: var(--color-accent-pale);
  border-radius: 0;
}

.faq-item__question {
  width: 100%;
  padding: 1.375rem 1rem 1.375rem 0;
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  color: var(--color-primary);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  transition: color var(--transition-base);
}
.faq-item__question::-webkit-details-marker { display: none; }
.faq-item[open] .faq-item__question { color: var(--color-accent-dark); }

/* Custom expand icon */
.faq-item__question::after {
  content: '';
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-accent-pale);
  border: 1.5px solid rgba(196,151,59,0.3);
  flex-shrink: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23C4973B' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='12' y1='5' x2='12' y2='19'/%3E%3Cline x1='5' y1='12' x2='19' y2='12'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 12px;
  transition: transform var(--transition-base), background-color var(--transition-base);
}
.faq-item[open] .faq-item__question::after {
  transform: rotate(45deg);
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='12' y1='5' x2='12' y2='19'/%3E%3Cline x1='5' y1='12' x2='19' y2='12'/%3E%3C/svg%3E");
}

.faq-item__answer { padding: 0 1rem 1.375rem 0; }
.faq-item__answer p {
  color: var(--color-text-muted);
  line-height: 1.8;
  font-size: var(--text-base);
}

/* ── CTA Banner (shared) ──────────────────────────────────── */
.cta-banner .section-heading { margin-bottom: 1rem; }
.cta-banner__subtext {
  color: rgba(255,255,255,0.72);
  font-size: var(--text-lg);
  max-width: 560px;
  margin: 0 auto 2.5rem;
  line-height: 1.65;
}
.cta-banner__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  align-items: center;
  justify-content: center;
}
.cta-banner__phone {
  color: rgba(255,255,255,0.75);
  font-size: var(--text-sm);
  letter-spacing: 0.02em;
  transition: color var(--transition-base);
  min-height: auto;
  display: flex;
  align-items: center;
  gap: 0.375rem;
}
.cta-banner__phone:hover { color: var(--color-accent-light); }