/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --color-bg:        #0d0f12;
  --color-surface:   #141720;
  --color-border:    #232633;
  --color-accent:    #4f8ef7;
  --color-accent-h:  #3a7ae8;
  --color-green:     #3da86e;
  --color-text:      #e8eaf0;
  --color-muted:     #8b90a0;
  --color-subtle:    #1c2030;

  --font-sans: 'Inter', system-ui, sans-serif;
  --font-serif: 'Playfair Display', Georgia, serif;

  --radius: 8px;
  --radius-lg: 16px;
  --max-width: 1100px;
  --nav-height: 64px;
}

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

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img, svg { display: block; max-width: 100%; }

/* ===== CONTAINERS ===== */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== NAV ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(13,15,18,0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  z-index: 100;
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
}

.nav-logo {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--color-text);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-muted);
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--color-text); }

.nav-link-accent {
  color: var(--color-green) !important;
}
.nav-link-accent:hover { opacity: 0.85; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 1.25rem;
  cursor: pointer;
  padding: 4px;
}

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  background: radial-gradient(ellipse 80% 60% at 50% 40%, #0f1e3a 0%, var(--color-bg) 70%);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 80%, rgba(79,142,247,0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(61,168,110,0.06) 0%, transparent 50%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  padding: calc(var(--nav-height) + 48px) 24px 80px;
  max-width: 760px;
}

.hero-eyebrow {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 16px;
}

.hero-headline {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: 20px;
}

.hero-tagline {
  font-size: clamp(1rem, 2.5vw, 1.375rem);
  color: var(--color-muted);
  font-weight: 300;
  margin-bottom: 40px;
  letter-spacing: 0.01em;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: 0.9375rem;
  font-weight: 500;
  transition: all 0.2s;
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-accent-h);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(79,142,247,0.3);
}

.btn-outline {
  border: 1px solid var(--color-border);
  color: var(--color-text);
  background: transparent;
}
.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: rgba(79,142,247,0.06);
}

/* ===== SECTIONS ===== */
.section {
  padding: 96px 0;
}
.section-alt {
  background: var(--color-surface);
}

.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 20px;
}

.section-body {
  font-size: 1.0625rem;
  color: var(--color-muted);
  max-width: 640px;
  line-height: 1.75;
  margin-bottom: 40px;
}

/* ===== PILLARS ===== */
.pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.pillar {
  background: var(--color-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: border-color 0.2s;
}
.pillar:hover { border-color: var(--color-accent); }

.pillar-icon {
  font-size: 1.25rem;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.pillar h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.pillar p {
  font-size: 0.9375rem;
  color: var(--color-muted);
  line-height: 1.65;
}

/* ===== FEATURE CARD ===== */
.feature-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 48px;
  align-items: center;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 48px;
  overflow: hidden;
}

.feature-card h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  font-weight: 700;
  margin-bottom: 16px;
}

.feature-card p {
  font-size: 1rem;
  color: var(--color-muted);
  line-height: 1.75;
  margin-bottom: 28px;
  max-width: 520px;
}

.feature-card-graphic {
  display: flex;
  align-items: center;
  justify-content: center;
}

.graphic-leaf {
  font-size: 7rem;
  line-height: 1;
  opacity: 0.6;
  user-select: none;
}

/* ===== CARDS ===== */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.card {
  background: var(--color-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: border-color 0.2s, transform 0.2s;
}
.card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}
.card.card-muted { opacity: 0.6; }
.card.card-muted:hover { transform: none; border-color: var(--color-border); }

.card-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: rgba(79,142,247,0.1);
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 16px;
}

.card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.card p {
  font-size: 0.9375rem;
  color: var(--color-muted);
  line-height: 1.65;
}

/* ===== CONTACT ===== */
.contact-container { text-align: center; }
.contact-container .section-body { margin-left: auto; margin-right: auto; }

/* ===== FOOTER ===== */
.footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: 32px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-brand {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1rem;
}

.footer-copy {
  font-size: 0.8125rem;
  color: var(--color-muted);
}

.footer-nav {
  display: flex;
  gap: 24px;
}

.footer-nav a {
  font-size: 0.8125rem;
  color: var(--color-muted);
  transition: color 0.2s;
}
.footer-nav a:hover { color: var(--color-text); }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 24px;
    gap: 20px;
    align-items: flex-start;
  }
  .nav-links.nav-open { display: flex; }
  .nav-toggle { display: block; }

  .feature-card {
    grid-template-columns: 1fr;
    padding: 32px 24px;
  }
  .feature-card-graphic { display: none; }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
}

@media (max-width: 480px) {
  .section { padding: 64px 0; }
  .hero-actions { flex-direction: column; align-items: center; }
  .btn { width: 100%; max-width: 280px; }
  .pillars { grid-template-columns: 1fr; }
  .cards { grid-template-columns: 1fr; }
}