/* === Eterna Femme — KLOW Premium Protocol Page === */
/* Elevated design for the flagship quad-peptide complex (from $220/cycle). */
/* Uses copper/amber accent palette to reflect GHK-Cu's copper-peptide nature. */

/* ─── KLOW Design Tokens (copper/amber premium palette) ─── */
:root {
  --klow-accent: #B87333;       /* copper — primary accent */
  --klow-accent-light: #D4A574; /* light copper */
  --klow-accent-dark: #8B5A2B;  /* dark copper */
  --klow-accent-glow: rgba(184, 115, 51, 0.15);
  --klow-gold: #C9A96E;         /* gold highlight */
  --klow-bg: #FAF7F4;
  --klow-surface: #FFFFFF;
  --klow-surface-elevated: #FDF9F5; /* warm white */
  --klow-text-primary: #1A1A1A;
  --klow-text-secondary: #6B5E54;
  --klow-border: #EDE5DF;
}

/* ─── Nav bar — copper accent for KLOW active state ─── */
.klow-nav-active {
  color: var(--klow-accent) !important;
  font-weight: 600;
}

/* ─── Hero — elevated premium treatment ─── */
.klow-hero {
  min-height: 88vh;
  display: flex;
  align-items: center;
  padding: 120px clamp(20px, 5vw, 80px) var(--section-padding);
  position: relative;
  overflow: hidden;
}

/* Full-bleed approved copper cells image as hero background */
.klow-hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('https://pub-629428d185ca4960a0a73c850d32294b.r2.dev/generated-images/company_168027/88644e21-0082-46c9-82fb-4bf215709969.jpg');
  background-size: cover;
  background-position: center;
  z-index: 0;
}

/* Subtle copper overlay — darkens image so text stays readable */
.klow-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgba(250, 247, 244, 0.85) 0%,
    rgba(250, 247, 244, 0.60) 45%,
    rgba(250, 247, 244, 0.15) 70%,
    transparent 100%
  );
  z-index: 1;
  pointer-events: none;
}

/* Thin copper accent glow — top right */
.klow-hero::after {
  content: '';
  position: absolute;
  top: -5%; right: -8%;
  width: 55%;
  height: 110%;
  background: radial-gradient(ellipse at center,
    rgba(184, 115, 51, 0.08) 0%,
    rgba(184, 115, 51, 0.03) 40%,
    transparent 70%
  );
  z-index: 1;
  pointer-events: none;
}

.klow-hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 80px;
  align-items: center;
}

.klow-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--klow-accent);
  margin-bottom: 1.2rem;
}

.klow-eyebrow-icon {
  width: 18px; height: 18px;
  color: var(--klow-gold);
}

.klow-headline {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 6vw, 4.5rem);
  font-weight: 400;
  line-height: 1.05;
  color: var(--klow-text-primary);
  margin-bottom: 1.4rem;
  letter-spacing: -0.01em;
}

.klow-pricing-badge {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--klow-accent-dark);
  background: rgba(184, 115, 51, 0.08);
  border: 1px solid rgba(184, 115, 51, 0.25);
  padding: 6px 16px;
  border-radius: 24px;
  margin-bottom: 1.6rem;
}

.klow-subhead {
  font-size: 1.05rem;
  line-height: 1.82;
  color: var(--klow-text-secondary);
  margin-bottom: 2.4rem;
  max-width: 500px;
}

.klow-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.klow-hero-note {
  margin-top: 1.4rem;
  font-size: 0.82rem;
  color: var(--klow-text-secondary);
}

.klow-hero-note a { color: var(--klow-accent); }
.klow-hero-note a:hover { color: var(--klow-accent-dark); }


@media (max-width: 860px) {
  .klow-hero { padding-top: 100px; }
}

/* ─── Premium Badge (shared across components) ─── */
.klow-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--klow-accent-dark);
  background: rgba(184, 115, 51, 0.08);
  border: 1px solid rgba(184, 115, 51, 0.2);
  padding: 5px 14px;
  border-radius: 24px;
}

/* ─── Category Banner — copper accent ─── */
.klow-category-banner {
  background: var(--klow-surface-elevated);
  border-bottom: 1px solid rgba(184, 115, 51, 0.15);
}

.klow-category-item.current {
  background: rgba(184, 115, 51, 0.05);
  border-left: 3px solid var(--klow-accent);
}

.klow-category-item.current .proto-cat-num { color: var(--klow-accent); }

.klow-cat-badge {
  margin-left: auto;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--klow-accent-dark);
  background: rgba(184, 115, 51, 0.1);
  border: 1px solid rgba(184, 115, 51, 0.2);
  padding: 4px 10px;
  border-radius: 20px;
  white-space: nowrap;
  flex-shrink: 0;
  align-self: center;
}

/* ─── Education Section — 4 premium cards ─── */
.klow-education {
  background: var(--klow-bg);
  padding: var(--section-padding) 0;
}

.klow-education-header {
  text-align: center;
  margin-bottom: 72px;
}

.klow-education-header .section-label {
  color: var(--klow-accent);
  margin-bottom: 1rem;
}

.klow-education-header h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.9rem, 3.8vw, 2.8rem);
  font-weight: 400;
  color: var(--klow-text-primary);
  margin-bottom: 1.4rem;
}

.klow-ornament {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 0.5rem;
}

.klow-ornament-line {
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--klow-accent-light), transparent);
}

.klow-ornament-diamond {
  width: 12px; height: 12px;
  background: var(--klow-accent);
  transform: rotate(45deg);
}

.klow-science-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.klow-science-card {
  padding: 40px 36px;
  background: var(--klow-surface);
  border: 1px solid rgba(184, 115, 51, 0.12);
  border-radius: 6px;
  transition: box-shadow 0.3s, border-color 0.3s;
  position: relative;
  overflow: hidden;
}

.klow-science-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--klow-accent) 0%, var(--klow-accent-light) 100%);
  opacity: 0;
  transition: opacity 0.3s;
}

.klow-science-card:hover {
  box-shadow: 0 12px 40px rgba(184, 115, 51, 0.10);
  border-color: rgba(184, 115, 51, 0.25);
}

.klow-science-card:hover::before { opacity: 1; }

.klow-science-tag {
  display: block;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--klow-accent);
  margin-bottom: 0.8rem;
}

.klow-science-card h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--klow-text-primary);
  margin-bottom: 0.9rem;
  font-weight: 400;
}

.klow-science-card p {
  font-size: 0.9rem;
  line-height: 1.78;
  color: var(--klow-text-secondary);
}

@media (max-width: 700px) {
  .klow-science-grid { grid-template-columns: 1fr; }
  .klow-science-card { padding: 32px 24px; }
}

/* ─── Cycle Structure Section ─── */
.klow-safety {
  background: var(--klow-surface-elevated);
  padding: var(--section-padding) 0;
}

.klow-safety-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 72px;
  align-items: start;
}

.klow-safety-text .section-label { color: var(--klow-accent); }

.klow-safety-text h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 400;
  color: var(--klow-text-primary);
  margin-bottom: 1.4rem;
}

.klow-safety-text p {
  font-size: 0.95rem;
  line-height: 1.82;
  margin-bottom: 1.4rem;
}

.klow-safety-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 1.8rem;
}

.klow-safety-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--klow-text-secondary);
}

.klow-check-icon {
  width: 20px; height: 20px;
  flex-shrink: 0;
  color: var(--klow-accent);
  margin-top: 1px;
}

/* Premium cycle card */
.klow-safety-card {
  background: var(--klow-surface);
  border: 1px solid rgba(184, 115, 51, 0.18);
  border-radius: 6px;
  padding: 36px;
  position: sticky;
  top: 88px;
  box-shadow: 0 8px 32px rgba(184, 115, 51, 0.08);
}

.klow-safety-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--klow-accent), var(--klow-gold), var(--klow-accent));
  border-radius: 6px 6px 0 0;
}

.klow-safety-card-label {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--klow-accent);
  margin-bottom: 1.2rem;
}

.klow-safety-card-price {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  font-weight: 400;
  color: var(--klow-text-primary);
  line-height: 1;
  margin-bottom: 0.3rem;
}

.klow-safety-card-price sub {
  font-size: 1rem;
  vertical-align: super;
}

.klow-safety-card-period {
  font-size: 0.82rem;
  color: var(--klow-text-secondary);
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(184, 115, 51, 0.15);
}

.klow-safety-card-body {
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--klow-text-secondary);
  font-style: italic;
}

.klow-safety-card-highlight {
  margin-top: 16px;
  padding: 12px 16px;
  background: rgba(184, 115, 51, 0.06);
  border-radius: 4px;
  font-size: 0.8rem;
  color: var(--klow-accent-dark);
  font-weight: 500;
  text-align: center;
}

@media (max-width: 800px) {
  .klow-safety-inner { grid-template-columns: 1fr; }
  .klow-safety-card { position: static; }
}

/* ─── Who This Is For ─── */
.klow-who {
  background: var(--klow-bg);
  padding: var(--section-padding) 0;
}

.klow-who-inner { max-width: var(--max-width); margin: 0 auto; }

.klow-who-inner > .section-label { color: var(--klow-accent); margin-bottom: 1rem; }

.klow-who-inner > h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 400;
  color: var(--klow-text-primary);
  margin-bottom: 56px;
}

.klow-who-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.klow-who-card {
  padding: 36px 32px;
  background: var(--klow-surface);
  border: 1px solid rgba(184, 115, 51, 0.10);
  border-radius: 6px;
  transition: box-shadow 0.25s, border-color 0.25s;
}

.klow-who-card:hover {
  box-shadow: 0 10px 32px rgba(184, 115, 51, 0.09);
  border-color: rgba(184, 115, 51, 0.2);
}

.klow-who-icon {
  width: 48px; height: 48px;
  color: var(--klow-accent);
  margin-bottom: 1.2rem;
}

.klow-who-icon svg { width: 100%; height: 100%; }

.klow-who-card h3 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--klow-text-primary);
  margin-bottom: 0.7rem;
  font-weight: 400;
}

.klow-who-card p { font-size: 0.88rem; line-height: 1.75; }

.klow-who-exclusion {
  background: rgba(184, 115, 51, 0.05);
  border: 1px solid rgba(184, 115, 51, 0.18);
  border-radius: 6px;
  padding: 28px 36px;
}

.klow-who-excl-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--klow-accent);
  margin-bottom: 0.6rem;
}

.klow-who-exclusion p:last-child {
  font-size: 0.88rem;
  line-height: 1.72;
  color: var(--klow-text-secondary);
}

@media (max-width: 700px) {
  .klow-who-grid { grid-template-columns: 1fr; }
}

/* ─── Pricing Section ─── */
.klow-pricing {
  background: var(--klow-bg);
  padding: var(--section-padding) 0;
}

.klow-pricing-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.klow-pricing-header {
  text-align: center;
  margin-bottom: 56px;
}

.klow-pricing-header .section-label { color: var(--klow-accent); margin-bottom: 1rem; }

.klow-pricing-header h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.9rem, 3.8vw, 2.8rem);
  font-weight: 400;
  color: var(--klow-text-primary);
  margin-bottom: 0.8rem;
}

.klow-pricing-callout {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
  padding: 20px 32px;
  background: var(--klow-surface);
  border: 1px solid rgba(184, 115, 51, 0.18);
  border-radius: 6px;
  position: relative;
}

.klow-pricing-callout-label {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--klow-accent);
  margin-bottom: 0.5rem;
}

.klow-pricing-callout p {
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--klow-text-secondary);
  margin: 0;
}

/* Single centered pricing card */
.klow-pricing-card-wrap {
  display: flex;
  justify-content: center;
  margin: 2rem 0;
}

.klow-pricing-card {
  max-width: 460px;
  width: 100%;
  background: var(--klow-surface);
  border: 1px solid rgba(184, 115, 51, 0.20);
  border-radius: 6px;
  padding: 40px 36px;
  box-shadow: 0 12px 48px rgba(184, 115, 51, 0.10);
  text-align: center;
}

.klow-pricing-card::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--klow-accent), transparent);
}

.klow-pricing-tier-name {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--klow-accent);
  margin-bottom: 0.6rem;
}

.klow-pricing-price {
  font-family: var(--font-serif);
  font-size: 3.2rem;
  font-weight: 400;
  color: var(--klow-text-primary);
  line-height: 1;
  margin-bottom: 0.3rem;
}

.klow-pricing-price sup {
  font-size: 1.4rem;
  vertical-align: super;
  line-height: 0;
}

.klow-pricing-period {
  font-size: 0.82rem;
  color: var(--klow-text-secondary);
  margin-bottom: 28px;
}

.klow-pricing-description {
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--klow-text-secondary);
  margin-bottom: 28px;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(184, 115, 51, 0.15);
}

.klow-pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: left;
}

.klow-pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--klow-text-secondary);
  line-height: 1.5;
}

.klow-pricing-features .klow-check-icon {
  flex-shrink: 0;
  margin-top: 1px;
}

.klow-pricing-cta-wrap {
  margin-top: 2rem;
}

.klow-pricing-note {
  text-align: center;
  margin-top: 40px;
  font-size: 0.82rem;
  color: var(--klow-text-secondary);
  line-height: 1.6;
}

.klow-pricing-note strong { color: var(--klow-text-primary); }

/* ─── Bottom CTA ─── */
.klow-cta {
  background: linear-gradient(135deg, var(--klow-accent-dark) 0%, #7A4A22 50%, var(--klow-accent) 100%);
  color: #fff;
  padding: var(--section-padding) 0;
  position: relative;
  overflow: hidden;
}

.klow-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(201, 169, 110, 0.15) 0%, transparent 60%);
  pointer-events: none;
}

.klow-cta-inner {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  position: relative;
}

.klow-cta .section-label {
  color: var(--klow-accent-light);
  margin-bottom: 1rem;
}

.klow-cta h2 {
  color: #fff;
  font-family: var(--font-serif);
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  font-weight: 400;
  margin-bottom: 1.4rem;
}

.klow-cta p {
  color: rgba(255,255,255,0.78);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 2.4rem;
}

.klow-cta-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 1.8rem;
}

.klow-cta .btn-primary {
  background: #fff;
  color: var(--klow-accent-dark);
  font-weight: 600;
}

.klow-cta .btn-primary:hover {
  background: var(--klow-accent-light);
  color: var(--klow-accent-dark);
}

.klow-cta .btn-secondary {
  border-color: rgba(255,255,255,0.35);
  color: rgba(255,255,255,0.8);
}

.klow-cta .btn-secondary:hover {
  border-color: rgba(255,255,255,0.7);
  color: #fff;
}

.klow-cta-note {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.45);
  margin-bottom: 0;
}

/* ─── Protocol Links Block ─── */
.klow-links {
  background: var(--klow-surface-elevated);
  padding: var(--section-padding) 0;
}

.klow-links-inner { max-width: var(--max-width); margin: 0 auto; }

.klow-links-inner > .section-label { color: var(--klow-accent); margin-bottom: 1rem; }

.klow-links-inner > h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 400;
  color: var(--klow-text-primary);
  margin-bottom: 48px;
}

.klow-links-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.klow-link-card {
  display: flex;
  gap: 16px;
  padding: 32px 28px;
  border: 1px solid rgba(184, 115, 51, 0.12);
  border-radius: 6px;
  background: var(--klow-surface);
  text-decoration: none;
  color: inherit;
  transition: box-shadow 0.25s, border-color 0.25s;
}

.klow-link-card:hover {
  box-shadow: 0 8px 32px rgba(184, 115, 51, 0.10);
  border-color: rgba(184, 115, 51, 0.25);
}

.klow-link-card--active {
  border-color: var(--klow-accent);
  background: rgba(184, 115, 51, 0.04);
  cursor: default;
}

.klow-link-num {
  font-family: var(--font-serif);
  font-size: 2.4rem;
  color: var(--klow-accent-light);
  line-height: 1;
  flex-shrink: 0;
}

.klow-link-card--active .klow-link-num { color: var(--klow-accent); }

.klow-link-card h3 {
  font-size: 1rem;
  color: var(--klow-text-primary);
  margin-bottom: 0.5rem;
  font-family: var(--font-serif);
}

.klow-link-card p {
  font-size: 0.85rem;
  line-height: 1.65;
  color: var(--klow-text-secondary);
  margin-bottom: 1rem;
}

.klow-link-cta {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--klow-accent);
  letter-spacing: 0.04em;
}

.klow-link-current {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--klow-accent-dark);
  background: rgba(184, 115, 51, 0.1);
  border: 1px solid rgba(184, 115, 51, 0.2);
  padding: 4px 10px;
  border-radius: 20px;
  display: inline-block;
}

@media (max-width: 800px) {
  .klow-links-grid { grid-template-columns: 1fr; }
}

/* ─── Buttons (KLOW copper-toned) ─── */
.btn-primary {
  display: inline-block;
  padding: 14px 28px;
  background: var(--klow-accent);
  color: #fff;
  font-weight: 600;
  font-size: 0.88rem;
  border-radius: 4px;
  letter-spacing: 0.04em;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
}

.btn-primary:hover {
  background: var(--klow-accent-dark);
  color: #fff;
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-block;
  padding: 13px 24px;
  background: transparent;
  color: var(--klow-accent);
  font-weight: 600;
  font-size: 0.88rem;
  border: 1.5px solid rgba(184, 115, 51, 0.4);
  border-radius: 4px;
  letter-spacing: 0.04em;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-secondary:hover {
  border-color: var(--klow-accent);
  color: var(--klow-accent-dark);
  background: rgba(184, 115, 51, 0.05);
}

/* ═══════════════════════════════════════════════════════
   PART 2 — LUMINOUS GLOWING HERO
   Layered radial-gradient cell halos + premium typography
   ═══════════════════════════════════════════════════════ */

/* Premium serif: Playfair Display (already in font stack from prior build) */
.klow-headline {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: clamp(3.5rem, 7vw, 5.5rem);
  font-weight: 400;
  line-height: 0.95;
  color: var(--klow-text-primary);
  letter-spacing: -0.02em;
  margin-bottom: 1.6rem;
}

/* Hero inner — raise content above the background image */
.klow-hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr;
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
}

/* Revised hero eyebrow — generous letter-spacing, small-caps feel */
.klow-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--klow-accent);
  margin-bottom: 1.4rem;
}

/* Revised pricing badge — tier breakdown inline */
.klow-tier-badge {
  display: inline-flex;
  align-items: baseline;
  gap: 0;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 1.8rem;
  line-height: 1;
}

.klow-badge-starting {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--klow-text-secondary);
  margin-right: 6px;
}

.klow-badge-price {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.8rem;
  font-weight: 400;
  color: var(--klow-text-primary);
  line-height: 1;
}

.klow-badge-period {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.78rem;
  color: var(--klow-text-secondary);
  margin-left: 2px;
}

.klow-badge-divider {
  color: var(--klow-text-secondary);
  font-size: 0.75rem;
  margin: 0 10px;
}

.klow-badge-cycle {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--klow-accent-dark);
  background: rgba(184, 115, 51, 0.08);
  border: 1px solid rgba(184, 115, 51, 0.25);
  padding: 4px 12px;
  border-radius: 24px;
}

/* ═══════════════════════════════════════════════════════
   PART 1 — REPLACED PRICING SECTION (old .klow-pricing-* → new 3-tier)
   ═══════════════════════════════════════════════════════ */

/* Pricing intro copy */
.klow-pricing-intro {
  text-align: center;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--klow-text-secondary);
  max-width: 540px;
  margin: 0 auto 56px;
}

/* Three-tier card grid */
.klow-tiers-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}

/* Base tier card */
.klow-tier-card {
  background: var(--klow-surface);
  border: 1px solid rgba(184, 115, 51, 0.16);
  border-radius: 8px;
  padding: 36px 28px;
  position: relative;
  transition: box-shadow 0.3s, border-color 0.3s, transform 0.3s;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.klow-tier-card:hover {
  box-shadow: 0 16px 48px rgba(184, 115, 51, 0.12);
  border-color: rgba(184, 115, 51, 0.30);
  transform: translateY(-4px);
}

/* Middle tier — slightly elevated */
.klow-tier-card--mid {
  border-color: rgba(184, 115, 51, 0.28);
  box-shadow: 0 8px 32px rgba(184, 115, 51, 0.08);
  transform: translateY(-8px);
}

.klow-tier-card--mid:hover {
  transform: translateY(-12px);
}

/* Best value tier — most premium */
.klow-tier-card--featured {
  border-color: var(--klow-accent);
  box-shadow: 0 16px 56px rgba(184, 115, 51, 0.18);
  transform: translateY(-16px);
  background: var(--klow-surface-elevated);
}

.klow-tier-card--featured::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--klow-accent), var(--klow-gold), var(--klow-accent));
  border-radius: 8px 8px 0 0;
}

.klow-tier-card--featured:hover {
  transform: translateY(-20px);
}

/* Save badge — 3-cycle tier */
.klow-tier-badge {
  position: absolute;
  top: -14px;
  right: 24px;
  background: var(--klow-accent);
  color: #fff;
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: 20px;
  box-shadow: 0 4px 12px rgba(184, 115, 51, 0.30);
}

/* Best Value badge */
.klow-tier-best-badge {
  position: absolute;
  top: -18px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--klow-accent) 0%, var(--klow-gold) 100%);
  color: #fff;
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 6px 18px;
  border-radius: 20px;
  box-shadow: 0 4px 16px rgba(184, 115, 51, 0.40);
  white-space: nowrap;
}

.klow-tier-name {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.05rem;
  color: var(--klow-text-primary);
  margin: 0 0 6px;
  font-weight: 400;
}

.klow-tier-card--featured .klow-tier-name {
  margin-top: 12px;
}

.klow-tier-desc {
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--klow-text-secondary);
  margin: 0 0 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(184, 115, 51, 0.12);
}

.klow-tier-price {
  display: flex;
  align-items: baseline;
  gap: 2px;
  margin-bottom: 4px;
}

.klow-tier-amount {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 2.6rem;
  font-weight: 400;
  color: var(--klow-text-primary);
  line-height: 1;
}

.klow-tier-per {
  font-size: 0.85rem;
  color: var(--klow-text-secondary);
}

.klow-tier-period {
  font-size: 0.75rem;
  color: var(--klow-accent-dark);
  font-weight: 500;
  margin: 0 0 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(184, 115, 51, 0.10);
}

.klow-tier-cta {
  display: block;
  text-align: center;
  padding: 14px;
  background: var(--klow-accent);
  color: #fff;
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  border-radius: 4px;
  text-decoration: none;
  transition: background 0.2s, transform 0.15s;
  margin-bottom: 24px;
}

.klow-tier-cta:hover {
  background: var(--klow-accent-dark);
  color: #fff;
  transform: translateY(-1px);
}

/* 3-cycle and 6-cycle tiers get a more prominent CTA */
.klow-tier-card--mid .klow-tier-cta,
.klow-tier-card--featured .klow-tier-cta {
  background: var(--klow-accent-dark);
}

.klow-tier-card--mid .klow-tier-cta:hover,
.klow-tier-card--featured .klow-tier-cta:hover {
  background: var(--klow-accent);
}

.klow-tier-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 0;
  margin: 0;
}

.klow-tier-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.82rem;
  color: var(--klow-text-secondary);
  line-height: 1.5;
}

.klow-tier-features .klow-check-icon {
  flex-shrink: 0;
  margin-top: 1px;
  color: var(--klow-accent);
  width: 16px;
  height: 16px;
}

/* Cycle structure section: replaced old single-card with 3-tier mini grid */
.klow-safety-pricing-wrap {
  background: var(--klow-surface);
  border: 1px solid rgba(184, 115, 51, 0.18);
  border-radius: 6px;
  padding: 32px;
  position: sticky;
  top: 88px;
  box-shadow: 0 8px 32px rgba(184, 115, 51, 0.08);
}

.klow-safety-pricing-wrap::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--klow-accent), var(--klow-gold), var(--klow-accent));
  border-radius: 6px 6px 0 0;
}

.klow-safety-pricing-label {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--klow-accent);
  margin-bottom: 1.2rem;
}

.klow-safety-pricing-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
}

.klow-tier-mini {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 12px 14px;
  border-radius: 4px;
  background: rgba(184, 115, 51, 0.04);
  border: 1px solid rgba(184, 115, 51, 0.10);
}

.klow-tier-mini--featured {
  border-color: rgba(184, 115, 51, 0.25);
  background: rgba(184, 115, 51, 0.07);
}

.klow-tier-mini--best {
  border-color: var(--klow-accent);
  background: rgba(184, 115, 51, 0.10);
  flex-direction: column;
  align-items: flex-start;
  position: relative;
  padding-top: 28px;
}

.klow-tier-mini-badge {
  position: absolute;
  top: -10px;
  left: 12px;
  background: linear-gradient(135deg, var(--klow-accent), var(--klow-gold));
  color: #fff;
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 12px;
}

.klow-tier-mini-name {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--klow-text-secondary);
}

.klow-tier-mini-price {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.1rem;
  color: var(--klow-text-primary);
  display: flex;
  align-items: baseline;
  gap: 2px;
}

.klow-tier-mini-price span {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.68rem;
  color: var(--klow-text-secondary);
}

.klow-tier-mini-save {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.62rem;
  font-weight: 700;
  color: var(--klow-accent-dark);
  background: rgba(184, 115, 51, 0.12);
  border: 1px solid rgba(184, 115, 51, 0.25);
  padding: 3px 8px;
  border-radius: 12px;
}

.klow-safety-pricing-note {
  font-size: 0.78rem;
  line-height: 1.65;
  color: var(--klow-text-secondary);
  font-style: italic;
  text-align: center;
}

/* Remove old single-card CSS that's now replaced */
.klow-pricing-callout { display: none; }
.klow-pricing-card-wrap { display: none; }

/* ═══════════════════════════════════════════════════════
   RESPONSIVE — Tiers stack on tablet/mobile
   ═══════════════════════════════════════════════════════ */
@media (max-width: 860px) {
  .klow-tiers-grid { grid-template-columns: 1fr; gap: 16px; }
  .klow-tier-card--featured { transform: none; }
  .klow-tier-card--mid { transform: none; }
  .klow-tier-card--featured:hover,
  .klow-tier-card--mid:hover { transform: translateY(-2px); }

  /* Safety section grid: single column on mobile */
  .klow-safety-inner { grid-template-columns: 1fr; }
  .klow-safety-pricing-wrap { position: static; }
}

/* Science CTA link — inside the synergy science card on /klow */
.klow-science-cta {
  margin-top: 1.2rem;
}

.klow-science-cta a {
  font-size: 0.80rem;
  font-weight: 600;
  color: var(--klow-accent);
  text-decoration: none;
  letter-spacing: 0.04em;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color 0.2s;
}

.klow-science-cta a:hover {
  color: var(--klow-accent-dark);
}

/* ─── KLOW Cohort Waitlist Capture Block ─── */
.klow-cohort {
  background: var(--klow-surface-elevated);
  padding: var(--section-padding) 0;
  border-top: 1px solid rgba(184, 115, 51, 0.12);
}

.klow-cohort-inner {
  max-width: 580px;
  margin: 0 auto;
  text-align: center;
}

.klow-cohort .section-label {
  color: var(--klow-accent);
  margin-bottom: 0.8rem;
}

.klow-cohort h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 400;
  color: var(--klow-text-primary);
  margin-bottom: 1.2rem;
  line-height: 1.2;
}

.klow-cohort-sub {
  font-size: 0.95rem;
  line-height: 1.78;
  color: var(--klow-text-secondary);
  margin-bottom: 2.4rem;
}

.klow-cohort-form-wrap {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
}

.klow-cohort-email-row {
  display: flex;
  gap: 10px;
  width: 100%;
  max-width: 440px;
}

.klow-cohort-email-row input[type="email"] {
  flex: 1;
  padding: 13px 16px;
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.88rem;
  border: 1.5px solid rgba(184, 115, 51, 0.3);
  border-radius: 4px;
  background: #fff;
  color: var(--klow-text-primary);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.klow-cohort-email-row input[type="email"]:focus {
  border-color: var(--klow-accent);
  box-shadow: 0 0 0 3px rgba(184, 115, 51, 0.12);
}

.klow-cohort-email-row input[type="email"]::placeholder {
  color: #b0a090;
}

.klow-cohort-btn {
  padding: 13px 28px;
  background: var(--klow-accent);
  color: #fff;
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.2s, transform 0.15s;
}

.klow-cohort-btn:hover:not(:disabled) {
  background: var(--klow-accent-dark);
  color: #fff;
  transform: translateY(-1px);
}

.klow-cohort-btn:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.klow-cohort-error {
  font-size: 0.8rem;
  color: #c0392b;
  margin-top: -4px;
  min-height: 18px;
}

.klow-cohort-fine-print {
  font-size: 0.75rem;
  color: var(--klow-text-secondary);
  margin-top: 4px;
  opacity: 0.75;
}

/* Confirmation state — replaces form in-place */
.klow-cohort-confirm {
  display: none;
  padding: 32px 24px;
  background: rgba(184, 115, 51, 0.06);
  border: 1px solid rgba(184, 115, 51, 0.22);
  border-radius: 6px;
  max-width: 440px;
  margin: 0 auto;
  text-align: center;
}

.klow-cohort-confirm-icon {
  width: 44px;
  height: 44px;
  background: rgba(184, 115, 51, 0.12);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.klow-cohort-confirm-icon svg {
  width: 22px;
  height: 22px;
  color: var(--klow-accent);
}

.klow-cohort-confirm h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--klow-text-primary);
  font-weight: 400;
  margin-bottom: 0.5rem;
}

.klow-cohort-confirm p {
  font-size: 0.85rem;
  color: var(--klow-text-secondary);
  line-height: 1.65;
}

/* Honeypot — visually hidden */
.klow-cohort-honeypot {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
  overflow: hidden;
  width: 0;
}