/* ═══════════════════════════════════════════
   NAD-TREATMENT.CSS — Viva IV Therapy
   ═══════════════════════════════════════════ */

:root {
  --accent:     #358fe7;
  --accent-dark:#1e73be;
  --bg:         #222326;
  --bg-2:       #1a1b1e;
  --bg-3:       #2c2d31;
  --surface:    #2e3035;
  --border:     rgba(255,255,255,0.08);
  --text-white: #ffffff;
  --text-body:  #d1d1d1;
  --text-muted: #8d8d8d;
  --font-head:  'Oswald', sans-serif;
  --font-body:  'Raleway', sans-serif;
  --radius:     6px;
  --dur:        0.28s ease;
}

/* ─── SHARED UTILITIES ─── */
.nad-badge {
  display: inline-block;
  font-family: var(--font-head);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(53,143,231,0.35);
  border-radius: 2px;
  padding: 4px 12px;
  margin-bottom: 1.2rem;
}

.nad-section-title {
  font-family: var(--font-head);
  font-size: clamp(1.9rem, 4vw, 3rem);
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--text-white);
  line-height: 1.1;
  margin: 0 0 1.4rem;
}
.nad-section-title .accent { color: var(--accent); }

.nad-section-sub {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text-body);
  max-width: 580px;
  line-height: 1.7;
  margin: 0 auto 2.5rem;
}

.nad-section-header-center {
  text-align: center;
  margin-bottom: 3rem;
}

/* ─── HERO ─── */
.nad-hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--bg-2);
}

.nad-hero-bg {
  position: absolute;
  inset: 0;
  background: url('images/nad-bg.png') center center / cover no-repeat;
  filter: brightness(0.25) saturate(0.6);
  transform: scale(1.04);
}

.nad-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(34,35,38,0.75) 0%,
    rgba(53,143,231,0.06) 100%
  );
}

/* Blue left stripe */
.nad-hero::before {
  content: '';
  position: absolute;
  left: 0; top: 15%; bottom: 15%;
  width: 3px;
  background: linear-gradient(to bottom, transparent, var(--accent), transparent);
  z-index: 2;
}

.nad-hero-content {
  position: relative;
  z-index: 3;
  padding: 160px 5vw 100px;
  max-width: 750px;
}

.nad-hero-eyebrow {
  font-family: var(--font-head);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.2rem;
}

.nad-hero-title {
  font-family: var(--font-head);
  font-size: clamp(3.5rem, 9vw, 7rem);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-white);
  line-height: 0.95;
  margin: 0 0 1.4rem;
}
.nad-hero-title .accent { color: var(--accent); }

.nad-hero-sub {
  font-family: var(--font-body);
  font-size: clamp(0.95rem, 1.6vw, 1.1rem);
  color: var(--text-body);
  max-width: 520px;
  line-height: 1.75;
  margin-bottom: 2.2rem;
}

.nad-hero-ctas {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.nad-hero-badges {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.nad-hero-badges span {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-body);
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 5px 12px;
  letter-spacing: 0.04em;
}

/* ─── WHAT IS NAD ─── */
.nad-what {
  background: var(--bg);
  padding: 6rem 5vw;
}

.nad-what-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

@media (max-width: 900px) {
  .nad-what-inner { grid-template-columns: 1fr; gap: 3rem; }
}

.nad-what-text p {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text-body);
  line-height: 1.8;
  margin-bottom: 1.1rem;
}

.nad-what-stats {
  display: flex;
  gap: 2.5rem;
  margin-top: 2.5rem;
  flex-wrap: wrap;
}

.nad-wstat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nad-wstat-num {
  font-family: var(--font-head);
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 600;
  color: var(--accent);
  line-height: 1;
}

.nad-wstat-label {
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.nad-what-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 500px) {
  .nad-what-visual { grid-template-columns: 1fr; }
}

.nad-molecule-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem;
  transition: border-color var(--dur), transform var(--dur);
}

.nad-molecule-card:hover {
  border-color: rgba(53,143,231,0.4);
  transform: translateY(-3px);
}

.nad-molecule-icon {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.nad-molecule-card h3 {
  font-family: var(--font-head);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-white);
  margin: 0 0 0.4rem;
}

.nad-molecule-card p {
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0;
}

/* ─── BENEFITS ─── */
.nad-benefits {
  background: var(--bg-3);
  padding: 6rem 5vw;
}

.nad-benefits-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
  max-width: 900px;
  margin: 0 auto;
}

@media (max-width: 860px) {
  .nad-benefits-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .nad-benefits-grid { grid-template-columns: 1fr; }
}

.nad-benefit {
  font-family: var(--font-body);
  font-size: 0.88rem;
  color: var(--text-body);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  transition: border-color var(--dur), color var(--dur);
}

.nad-benefit:hover {
  border-color: rgba(53,143,231,0.35);
  color: var(--text-white);
}

/* ─── SINGLE DOSE PRICING ─── */
.nad-pricing {
  background: var(--bg-2);
  padding: 6rem 5vw;
}

.nad-doses-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.4rem;
}

@media (max-width: 960px) {
  .nad-doses-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .nad-doses-grid { grid-template-columns: 1fr; }
}

.nad-dose-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: flex-start;
  transition: border-color var(--dur), transform var(--dur);
  position: relative;
}

.nad-dose-card:hover {
  border-color: rgba(53,143,231,0.4);
  transform: translateY(-4px);
}

.nad-dose-card--featured {
  border-color: var(--accent);
  background: linear-gradient(160deg, rgba(53,143,231,0.1) 0%, var(--surface) 60%);
}

.nad-dose-badge {
  position: absolute;
  top: -1px;
  right: 1rem;
  font-family: var(--font-head);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--accent);
  color: #fff;
  padding: 3px 10px;
  border-radius: 0 0 4px 4px;
}

.nad-dose-mg {
  font-family: var(--font-head);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.04em;
}

.nad-dose-price {
  font-family: var(--font-head);
  font-size: 2.2rem;
  font-weight: 600;
  color: var(--text-white);
  line-height: 1;
}

.nad-dose-time {
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.nad-dose-desc {
  font-family: var(--font-body);
  font-size: 0.83rem;
  color: var(--text-body);
  line-height: 1.6;
  margin: 0;
  flex: 1;
}

/* ─── PROGRAMS ─── */
.nad-programs {
  background: var(--bg);
  padding: 6rem 5vw;
}

.nad-programs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.4rem;
}

@media (max-width: 960px) {
  .nad-programs-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .nad-programs-grid { grid-template-columns: 1fr; }
}

.nad-program-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  position: relative;
  transition: border-color var(--dur), transform var(--dur);
}

.nad-program-card:hover {
  border-color: rgba(53,143,231,0.35);
  transform: translateY(-3px);
}

.nad-program-card--featured {
  border-color: var(--accent);
  background: linear-gradient(160deg, rgba(53,143,231,0.1) 0%, var(--surface) 60%);
}

.nad-program-card--detox {
  border-color: rgba(248,113,113,0.3);
  background: linear-gradient(160deg, rgba(248,113,113,0.06) 0%, var(--surface) 60%);
}

.nad-program-badge {
  position: absolute;
  top: -1px;
  left: 1rem;
  font-family: var(--font-head);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--accent);
  color: #fff;
  padding: 3px 10px;
  border-radius: 0 0 4px 4px;
}

.nad-program-badge--detox {
  background: #f87171;
}

.nad-program-name {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-white);
  margin-top: 0.5rem;
}

.nad-program-detail {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--text-body);
}

.nad-program-specs {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.nad-program-specs span {
  font-family: var(--font-body);
  font-size: 0.78rem;
  color: var(--text-muted);
}

.nad-program-price {
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 600;
  color: var(--accent);
  margin: 0.5rem 0;
}

.nad-program-card--featured .nad-program-price { color: var(--text-white); }

/* ─── HOW IT WORKS ─── */
.nad-how {
  background: var(--bg-3);
  padding: 6rem 5vw;
}

.nad-steps {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

.nad-step {
  flex: 1;
  min-width: 180px;
  max-width: 220px;
  text-align: center;
}

.nad-step-num {
  font-family: var(--font-head);
  font-size: 3rem;
  font-weight: 600;
  color: rgba(53,143,231,0.25);
  line-height: 1;
  margin-bottom: 0.75rem;
}

.nad-step h3 {
  font-family: var(--font-head);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-white);
  margin: 0 0 0.6rem;
}

.nad-step p {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin: 0;
}

.nad-step-arrow {
  font-size: 1.5rem;
  color: var(--accent);
  opacity: 0.4;
  margin-top: 3rem;
  flex-shrink: 0;
}

@media (max-width: 700px) {
  .nad-step-arrow { display: none; }
  .nad-step { max-width: 100%; text-align: left; }
}

/* ─── CTA ─── */
.nad-cta {
  position: relative;
  padding: 7rem 5vw;
  text-align: center;
  overflow: hidden;
}

.nad-cta-bg {
  position: absolute;
  inset: 0;
  background: url('images/nad-bg.png') center / cover no-repeat;
  filter: brightness(0.15) saturate(0.5);
}

.nad-cta::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(34,35,38,0.9) 0%, rgba(53,143,231,0.1) 100%);
}

.nad-cta-content { position: relative; z-index: 2; }

.nad-cta-title {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 4vw, 3.2rem);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-white);
  line-height: 1.1;
  margin-bottom: 1rem;
}
.nad-cta-title .accent { color: var(--accent); }

.nad-cta-content > p {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text-body);
  margin-bottom: 2.5rem;
}

.nad-cta-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.nad-cta-info {
  display: flex;
  gap: 2rem;
  justify-content: center;
  flex-wrap: wrap;
  font-family: var(--font-body);
  font-size: 0.88rem;
  color: var(--text-muted);
}

.nad-cta-info a { color: var(--accent); text-decoration: none; }
.nad-cta-info a:hover { text-decoration: underline; }

/* ─── DISCLAIMER ─── */
.nad-disclaimer {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  padding: 2rem 5vw;
}

.nad-disclaimer p {
  font-family: var(--font-body);
  font-size: 0.72rem;
  color: var(--text-muted);
  line-height: 1.7;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 600px) {
  .nad-hero-content { padding: 130px 5vw 80px; }
  .nad-what, .nad-benefits, .nad-pricing, .nad-programs, .nad-how { padding: 4rem 5vw; }
  .nad-cta { padding: 5rem 5vw; }
  .nad-cta-info { flex-direction: column; gap: 0.5rem; align-items: center; }
  .nad-hero-ctas { flex-direction: column; }
}

/* ═══════════════════════════════════════════════════
   IN-CLINIC NAD+ INJECTIONS SECTION
═══════════════════════════════════════════════════ */
.nad-injections {
  padding: 6rem 0;
  background: var(--bg-2);
}

.nad-inject-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.4rem;
  margin-top: 2.5rem;
}

.nad-inject-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.6rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  position: relative;
  transition: border-color var(--dur), transform var(--dur);
}
.nad-inject-card:hover {
  border-color: rgba(53,143,231,0.4);
  transform: translateY(-4px);
}

.nad-inject-card--featured {
  border-color: var(--accent);
  background: linear-gradient(160deg, rgba(53,143,231,0.12) 0%, var(--surface) 100%);
}

.nad-inject-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  font-family: var(--font-head);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  padding: 3px 12px;
  border-radius: 2px;
  text-transform: uppercase;
  white-space: nowrap;
}

.nad-inject-mg {
  font-family: var(--font-head);
  font-size: 1.9rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--text-white);
  text-transform: uppercase;
}

.nad-inject-price {
  font-family: var(--font-head);
  font-size: 2.4rem;
  font-weight: 600;
  color: var(--accent);
  line-height: 1;
  margin: 0.3rem 0;
}

.nad-inject-desc {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--text-body);
  line-height: 1.6;
  margin: 0 0 0.8rem;
}

/* ═══════════════════════════════════════════════════
   AT-HOME NAD+ SELF-INJECTION SECTION
═══════════════════════════════════════════════════ */
.nad-athome {
  padding: 6rem 0;
  background: var(--bg);
  border-top: 1px solid var(--border);
}

.nad-athome-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.nad-athome-content {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.nad-athome-desc {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text-body);
  line-height: 1.75;
  margin: 0;
}

.nad-athome-features {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.nad-athome-features li {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text-body);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nad-athome-check {
  color: var(--accent);
  font-weight: 700;
  font-size: 1rem;
  flex-shrink: 0;
}

.nad-athome-price-block {
  background: var(--surface);
  border: 1px solid rgba(53,143,231,0.3);
  border-radius: var(--radius);
  padding: 1.4rem 1.8rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  margin: 0.5rem 0;
}

.nad-athome-label {
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.nad-athome-price {
  font-family: var(--font-head);
  font-size: 3rem;
  font-weight: 600;
  color: var(--accent);
  line-height: 1;
}

.nad-athome-sub {
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Right column — card */
.nad-athome-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.nad-athome-card {
  background: var(--surface);
  border: 1px solid rgba(53,143,231,0.25);
  border-radius: 10px;
  padding: 2.2rem;
  width: 100%;
  max-width: 380px;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.nad-athome-card-title {
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--border);
}

.nad-athome-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.nad-athome-item-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
  width: 2.2rem;
  text-align: center;
}

.nad-athome-item-label {
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 0.15rem;
}

.nad-athome-item-detail {
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.nad-athome-total {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(53,143,231,0.1);
  border: 1px solid rgba(53,143,231,0.3);
  border-radius: var(--radius);
  padding: 0.9rem 1.2rem;
  margin-top: 0.4rem;
  font-family: var(--font-head);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-body);
}

.nad-athome-total-price {
  font-size: 1.6rem;
  color: var(--accent);
}

/* Responsive */
@media (max-width: 900px) {
  .nad-inject-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .nad-athome-inner {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .nad-athome-visual {
    justify-content: stretch;
  }
  .nad-athome-card {
    max-width: 100%;
  }
}

@media (max-width: 500px) {
  .nad-inject-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }
  .nad-injections,
  .nad-athome {
    padding: 4rem 5vw;
  }
}