/* ====================================
   SkinVault — Theme Stylesheet
   Typography: Playfair Display + DM Sans
   Palette: Forest Green #1a3a2a, Cream #faf8f4, Gold #b8975a
   ==================================== */

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --green-deep: #1a3a2a;
  --green-mid: #234d3a;
  --green-light: #2f6350;
  --cream: #faf8f4;
  --cream-dark: #f0ece4;
  --cream-mid: #e8e2d8;
  --gold: #b8975a;
  --gold-light: #d4b87a;
  --charcoal: #2a2a2a;
  --charcoal-light: #6b6b6b;
  --white: #ffffff;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'DM Sans', system-ui, sans-serif;
  background: var(--cream);
  color: var(--charcoal);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* --- Typography --- */
h1, h2, h3, h4 {
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 700;
  line-height: 1.15;
  color: var(--green-deep);
}

.section-label {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1rem;
}

.section-headline {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--green-deep);
  margin-bottom: 2rem;
  line-height: 1.1;
}

/* ====================================
   HERO
   ==================================== */
.hero {
  min-height: 100vh;
  background: var(--cream);
  display: flex;
  align-items: center;
  padding: 6rem 8vw 4rem;
  position: relative;
  overflow: hidden;
}

.hero-accent-bar {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 6px;
  background: linear-gradient(180deg, var(--gold) 0%, var(--green-deep) 100%);
}

.hero-content {
  flex: 1;
  max-width: 620px;
  position: relative;
  z-index: 2;
}

.hero-label {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--charcoal-light);
  margin-bottom: 2rem;
  font-weight: 500;
}

.hero-headline {
  font-size: clamp(3rem, 6vw, 5.5rem);
  font-weight: 700;
  color: var(--green-deep);
  line-height: 1.0;
  margin-bottom: 2rem;
}

.hero-headline em {
  font-style: italic;
  color: var(--gold);
}

.hero-sub {
  font-size: 1.05rem;
  color: var(--charcoal-light);
  line-height: 1.7;
  max-width: 520px;
  margin-bottom: 3rem;
}

.hero-credentials {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.cred-title {
  display: block;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--green-deep);
}

.cred-sub {
  display: block;
  font-size: 0.85rem;
  color: var(--charcoal-light);
  line-height: 1.5;
}

/* Visual circles */
.hero-visual {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  position: relative;
  height: 500px;
}

.hero-glow {
  position: absolute;
  right: 10%;
  top: 50%;
  transform: translateY(-50%);
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(184,151,90,0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-circle {
  position: absolute;
  border-radius: 50%;
  border: 1.5px solid var(--cream-dark);
}

.hero-circle-1 {
  width: 380px;
  height: 380px;
  right: 5%;
  top: 50%;
  transform: translateY(-50%);
  border-color: var(--gold-light);
  opacity: 0.4;
}

.hero-circle-2 {
  width: 260px;
  height: 260px;
  right: 12%;
  top: 50%;
  transform: translateY(-50%);
  border-color: var(--gold);
  opacity: 0.5;
}

.hero-circle-3 {
  width: 160px;
  height: 160px;
  right: 18%;
  top: 50%;
  transform: translateY(-50%);
  background: radial-gradient(circle, rgba(184,151,90,0.08) 0%, transparent 80%);
  border-color: var(--gold);
  opacity: 0.7;
}

/* ====================================
   MANIFESTO
   ==================================== */
.manifesto {
  background: var(--green-deep);
  padding: 6rem 8vw;
}

.manifesto-inner {
  max-width: 860px;
  margin: 0 auto;
}

.manifesto-quote {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-style: italic;
  color: var(--cream);
  line-height: 1.4;
  margin-bottom: 3rem;
  padding-left: 2rem;
  border-left: 3px solid var(--gold);
}

.manifesto-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem 4rem;
}

.manifesto-body p {
  color: rgba(250,248,244,0.8);
  font-size: 1rem;
  line-height: 1.75;
}

/* ====================================
   PILLARS
   ==================================== */
.pillars {
  padding: 7rem 8vw;
  background: var(--cream);
}

.pillars-header {
  margin-bottom: 4rem;
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}

.pillar {
  padding: 3rem 2.5rem;
  border-right: 1px solid var(--cream-dark);
  position: relative;
}

.pillar:last-child {
  border-right: none;
}

.pillar-num {
  font-family: 'Playfair Display', serif;
  font-size: 4rem;
  font-weight: 700;
  color: var(--cream-mid);
  line-height: 1;
  margin-bottom: 1.5rem;
  display: block;
}

.pillar-title {
  font-family: 'Playfair Display', serif;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--green-deep);
  margin-bottom: 1rem;
}

.pillar-desc {
  color: var(--charcoal-light);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.pillar-list {
  list-style: none;
  padding: 0;
}

.pillar-list li {
  font-size: 0.85rem;
  color: var(--green-mid);
  font-weight: 500;
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--cream-dark);
}

.pillar-list li:last-child {
  border-bottom: none;
}

/* ====================================
   SCIENCE
   ==================================== */
.science {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 600px;
}

.science-left {
  background: var(--cream-dark);
  padding: 5rem 4rem 5rem 8vw;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.science-body {
  color: var(--charcoal-light);
  font-size: 0.95rem;
  line-height: 1.75;
  margin-bottom: 1.5rem;
}

.science-stat {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--cream-mid);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.stat-number {
  font-family: 'Playfair Display', serif;
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--green-deep);
  line-height: 1;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--charcoal-light);
  max-width: 280px;
  line-height: 1.5;
}

.science-right {
  background: var(--green-deep);
  padding: 5rem 8vw 5rem 4rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.science-card {
  background: rgba(250,248,244,0.05);
  border: 1px solid rgba(184,151,90,0.25);
  border-radius: 4px;
  padding: 2rem;
  flex: 1;
}

.sci-card-label {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.sci-card-title {
  font-family: 'Playfair Display', serif;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--cream);
  margin-bottom: 1rem;
}

.sci-list {
  list-style: none;
  padding: 0;
}

.sci-list li {
  font-size: 0.85rem;
  color: rgba(250,248,244,0.7);
  padding: 0.4rem 0;
  border-bottom: 1px solid rgba(250,248,244,0.08);
}

.sci-list li:last-child {
  border-bottom: none;
}

/* ====================================
   LONGEVITY
   ==================================== */
.longevity {
  background: var(--cream-dark);
  padding: 7rem 8vw;
  text-align: center;
  border-top: 1px solid var(--cream-mid);
  border-bottom: 1px solid var(--cream-mid);
}

.longevity-inner {
  max-width: 760px;
  margin: 0 auto;
}

.longevity-badge {
  display: inline-block;
  border: 1.5px solid var(--gold);
  border-radius: 2px;
  padding: 0.5rem 1.5rem;
  margin-bottom: 2.5rem;
}

.badge-text {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
}

.longevity-headline {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 700;
  color: var(--green-deep);
  line-height: 1.15;
  margin-bottom: 1.5rem;
}

.longevity-sub {
  font-size: 1rem;
  color: var(--charcoal-light);
  line-height: 1.75;
  margin-bottom: 3rem;
}

.longevity-cta {
  text-align: center;
}

.longevity-cta-text {
  font-family: 'Playfair Display', serif;
  font-size: 2.5rem;
  font-style: italic;
  color: var(--gold);
  font-weight: 400;
}

/* ====================================
   CLINICAL
   ==================================== */
.clinical {
  background: var(--cream);
  padding: 7rem 8vw;
}

.clinical-header {
  text-align: center;
  margin-bottom: 4rem;
}

.clinical-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.clinical-item {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.clinical-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--green-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.5rem;
}

.clinical-icon svg {
  width: 22px;
  height: 22px;
  color: var(--gold);
  stroke-width: 1.5;
}

.clinical-item h4 {
  font-family: 'Playfair Display', serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--green-deep);
  line-height: 1.3;
}

.clinical-item p {
  font-size: 0.875rem;
  color: var(--charcoal-light);
  line-height: 1.65;
}

/* ====================================
   CLOSER
   ==================================== */
.closer {
  background: var(--green-deep);
  padding: 7rem 8vw;
}

.closer-inner {
  max-width: 780px;
  margin: 0 auto;
  text-align: center;
}

.closer-headline {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  color: var(--cream);
  line-height: 1.2;
  margin-bottom: 2rem;
}

.closer-body {
  font-size: 1rem;
  color: rgba(250,248,244,0.75);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.closer-body:last-child {
  margin-bottom: 0;
}

/* ====================================
   FOOTER
   ==================================== */
.footer {
  background: var(--cream-dark);
  padding: 4rem 8vw 2rem;
  border-top: 1px solid var(--cream-mid);
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 4rem;
  margin-bottom: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--cream-mid);
}

.footer-logo {
  font-family: 'Playfair Display', serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--green-deep);
  display: block;
  margin-bottom: 0.75rem;
}

.footer-tagline {
  font-size: 0.875rem;
  color: var(--charcoal-light);
  line-height: 1.6;
}

.footer-links-title {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--charcoal-light);
  margin-bottom: 1rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--charcoal);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--gold);
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--charcoal-light);
}

.footer-disclaimer {
  font-size: 0.75rem;
  color: var(--charcoal-light);
  opacity: 0.6;
}

/* ====================================
   RESPONSIVE
   ==================================== */
@media (max-width: 1024px) {
  .clinical-grid { grid-template-columns: repeat(2, 1fr); }
  .science { grid-template-columns: 1fr; }
  .science-left { padding: 4rem 8vw; }
  .science-right { padding: 4rem 8vw; }
}

@media (max-width: 768px) {
  .hero { padding: 5rem 6vw 3rem; flex-direction: column; min-height: auto; }
  .hero-visual { display: none; }
  .manifesto-body { grid-template-columns: 1fr; }
  .pillars-grid { grid-template-columns: 1fr; }
  .pillar { border-right: none; border-bottom: 1px solid var(--cream-dark); }
  .pillar:last-child { border-bottom: none; }
  .footer-top { grid-template-columns: 1fr; gap: 2rem; }
  .clinical-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero-headline { font-size: 2.5rem; }
  .manifesto, .pillars, .science, .longevity, .clinical, .closer, .footer { padding-left: 6vw; padding-right: 6vw; }
}