/* ─── Design Tokens ─────────────────────────────────────── */
:root {
  --navy:          #0f172a;
  --navy-mid:      #1e293b;
  --slate:         #94a3b8;
  --sky:           #38bdf8;
  --white:         #ffffff;
  --off-white:     #f8fafc;
  --dark:          #0f172a;
  --mid-gray:      #64748b;
  --border:        #e2e8f0;
  --badge-bg:      #e2e8f0;
  --badge-text:    #475569;
  --traction-bg:   #eff6ff;
  --traction-line: #0ea5e9;

  --font: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-width: 900px;
  --nav-height: 60px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  padding-top: var(--nav-height);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ─── Nav ────────────────────────────────────────────────── */
#nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: var(--navy-mid);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid rgba(56, 189, 248, 0.2);
}

.nav-inner {
  width: 100%;
  max-width: var(--max-width);
  padding: 0 2rem;
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  color: var(--slate);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-link:hover,
.nav-link.active {
  color: var(--sky);
}

.nav-cta {
  margin-left: auto;
  color: var(--sky);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  border: 1px solid var(--sky);
  padding: 0.35rem 1rem;
  border-radius: 4px;
  transition: background 0.2s, color 0.2s;
}

.nav-cta:hover {
  background: var(--sky);
  color: var(--navy);
}

/* ─── Zone Shared ────────────────────────────────────────── */
.zone-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

/* ─── Zone 1: Salesforce Architect ──────────────────────── */
.zone--salesforce {
  background: var(--navy);
  color: var(--white);
  padding: 6rem 2rem 5rem;
}

.hero-name {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 0.5rem;
}

.hero-title {
  font-size: 1.3rem;
  color: var(--sky);
  font-weight: 500;
  margin-bottom: 0.4rem;
}

.hero-sub {
  font-size: 1rem;
  color: var(--slate);
  margin-bottom: 2rem;
}

.industries {
  font-size: 0.82rem;
  color: var(--slate);
  margin-bottom: 2.5rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.certs {
  margin-bottom: 2.5rem;
}

.certs h3 {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--slate);
  margin-bottom: 0.6rem;
}

.cert-active {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.cert-pursuing {
  color: var(--slate);
  font-size: 0.9rem;
  margin-bottom: 0.2rem;
}

.cert-path {
  color: var(--sky);
  font-size: 0.85rem;
}

.case-studies {
  margin-bottom: 2.5rem;
}

.case-studies h3 {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--slate);
  margin-bottom: 0.75rem;
}

.case-studies ul {
  list-style: none;
}

.case-studies li {
  padding: 0.6rem 0 0.6rem 1.5rem;
  position: relative;
  color: #cbd5e1;
  font-size: 0.95rem;
  line-height: 1.5;
  border-bottom: 1px solid rgba(148, 163, 184, 0.12);
}

.case-studies li:first-child {
  border-top: 1px solid rgba(148, 163, 184, 0.12);
}

.case-studies li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--sky);
}

.links-row {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.link-btn {
  color: var(--sky);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(56, 189, 248, 0.3);
  transition: border-color 0.2s;
}

.link-btn:hover {
  border-color: var(--sky);
}

.zone-cta {
  border-top: 1px solid rgba(148, 163, 184, 0.15);
  padding-top: 2rem;
}

.zone-cta p {
  color: var(--slate);
  font-size: 0.95rem;
  margin-bottom: 0.4rem;
}

.cta-link {
  color: var(--sky);
  font-size: 1.05rem;
  font-weight: 600;
  text-decoration: none;
}

.cta-link:hover {
  text-decoration: underline;
}

/* ─── Zone 2: Product Builder ────────────────────────────── */
.zone--products {
  background: var(--off-white);
  color: var(--dark);
  padding: 5rem 2rem;
}

.zone-headline {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.zone-subheadline {
  font-size: 1rem;
  color: var(--mid-gray);
  margin-bottom: 3rem;
  max-width: 600px;
}

.cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-bottom: 2rem;
}

@media (max-width: 640px) {
  .cards-grid {
    grid-template-columns: 1fr;
  }

  .links-row {
    flex-direction: column;
    gap: 0.75rem;
  }
}

.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem;
}

.card-name {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
  color: var(--dark);
}

.card-desc {
  font-size: 0.875rem;
  color: var(--mid-gray);
  margin-bottom: 1rem;
  line-height: 1.5;
}

.card-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.badge {
  font-size: 0.7rem;
  background: var(--badge-bg);
  color: var(--badge-text);
  padding: 3px 9px;
  border-radius: 4px;
  font-weight: 500;
  white-space: nowrap;
}

.traction {
  background: var(--traction-bg);
  border-left: 3px solid var(--traction-line);
  padding: 1rem 1.25rem;
  border-radius: 0 6px 6px 0;
  margin-bottom: 2rem;
  font-size: 0.95rem;
  color: #1e40af;
  font-weight: 500;
}

.tech-breadth {
  font-size: 0.8rem;
  color: var(--mid-gray);
  margin-bottom: 2.5rem;
  line-height: 1.8;
}

.zone--products .zone-cta {
  border-top: 1px solid var(--border);
  padding-top: 2rem;
}

.zone--products .zone-cta p {
  color: var(--mid-gray);
}

.zone--products .cta-link {
  color: #0ea5e9;
}

/* ─── Footer ─────────────────────────────────────────────── */
footer {
  background: var(--navy);
  padding: 2.5rem 2rem;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

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

.footer-link:hover {
  color: var(--sky);
}