/* =============================================================================
   Bowlin Dark — main.css
   Pure static site. No framework, no build step.
   ============================================================================= */

/* -----------------------------------------------------------------------
   0. Reset
   -------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: #0a0f1e;
  color: #e8eaf2;
  font-family: 'Outfit', system-ui, sans-serif;
  font-size: 15px;
  font-weight: 400;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg { display: block; max-width: 100%; }
a { color: #6399fa; text-decoration: none; transition: color 0.2s; }
a:hover { color: #e8eaf2; }
ul, ol { list-style: none; }

/* -----------------------------------------------------------------------
   1. Design tokens
   -------------------------------------------------------------------- */
:root {
  --bg:           #0a0f1e;
  --surface:      #0d1526;
  --accent:       #6399fa;
  --accent-dim:   rgba(99, 153, 250, 0.12);
  --teal:         #2dcb95;
  --teal-dim:     rgba(29, 158, 117, 0.12);
  --amber:        #f5c775;
  --amber-dim:    rgba(186, 117, 23, 0.12);
  --red:          #f87171;
  --red-dim:      rgba(220, 38, 38, 0.12);
  --text:         #e8eaf2;
  --text-2:       #b0b6cc;
  --text-muted:   #717a99;
  --border:       rgba(99, 153, 250, 0.18);
  --border-faint: rgba(255, 255, 255, 0.06);

  --font-display: 'DM Serif Display', Georgia, serif;
  --font-mono:    'DM Mono', 'Courier New', monospace;
  --font-body:    'Outfit', system-ui, sans-serif;

  --r-sm: 6px;
  --r-md: 12px;
  --r-lg: 16px;

  --nav-h: 60px;
  --gap:   24px;
  --pad:   40px;
}

/* -----------------------------------------------------------------------
   2. Layout helpers
   -------------------------------------------------------------------- */
.container {
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: var(--pad);
}

/* -----------------------------------------------------------------------
   3. Background decorations
   -------------------------------------------------------------------- */
.grid-bg {
  position: relative;
}
.grid-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(99,153,250,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99,153,250,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}
.grid-bg > .container,
.grid-bg > .hero-grid,
.grid-bg > .impact-grid,
.grid-bg > .contact-inner { position: relative; z-index: 1; }

.glow {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}
.glow--hero {
  top: -80px;
  right: -80px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(99,153,250,0.13) 0%, transparent 68%);
}

/* -----------------------------------------------------------------------
   4. Typography helpers
   -------------------------------------------------------------------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--accent);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}
.eyebrow::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--accent);
  flex-shrink: 0;
}
.eyebrow--center {
  justify-content: center;
}
.eyebrow--center::before { display: none; }

/* -----------------------------------------------------------------------
   5. Cards
   -------------------------------------------------------------------- */
.card {
  background: rgba(255, 255, 255, 0.03);
  border: 0.5px solid var(--border-faint);
  border-radius: var(--r-lg);
  padding: 28px;
}
.card--accent {
  background: rgba(99, 153, 250, 0.05);
  border-color: var(--border);
  padding: 48px;
  position: relative;
  overflow: hidden;
}

/* -----------------------------------------------------------------------
   6. Buttons
   -------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 26px;
  border-radius: var(--r-sm);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.03em;
  cursor: pointer;
  text-decoration: none;
  transition: opacity 0.2s, background 0.2s, color 0.2s;
  white-space: nowrap;
}
.btn--primary {
  background: var(--accent);
  color: var(--bg);
}
.btn--primary:hover { opacity: 0.86; color: var(--bg); }

.btn--ghost {
  background: transparent;
  color: var(--text);
  border: 0.5px solid rgba(232, 234, 242, 0.22);
}
.btn--ghost:hover { background: rgba(255,255,255,0.05); color: var(--text); }

.btn-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.btn-row--center { justify-content: center; }

/* -----------------------------------------------------------------------
   7. Header / Nav
   -------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  height: var(--nav-h);
  background: rgba(10, 15, 30, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 0.5px solid var(--border-faint);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding-inline: var(--pad);
  max-width: 1400px;
  margin-inline: auto;
}

.header-logo {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--accent);
  text-transform: uppercase;
  text-decoration: none;
  flex-shrink: 0;
}
.header-logo:hover { color: var(--accent); opacity: 0.8; }

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 32px;
}
.main-nav a {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  text-transform: uppercase;
  text-decoration: none;
  transition: color 0.2s;
}
.main-nav a:hover { color: var(--text); }

.nav-cta {
  background: var(--accent) !important;
  color: var(--bg) !important;
  padding: 7px 18px !important;
  border-radius: var(--r-sm) !important;
  font-weight: 500 !important;
}
.nav-cta:hover { opacity: 0.88; color: var(--bg) !important; }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text);
  transition: transform 0.25s, opacity 0.25s;
  transform-origin: center;
}

/* -----------------------------------------------------------------------
   8. Hero
   -------------------------------------------------------------------- */
.hero {
  padding: 80px var(--pad) 64px;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.7fr 0.7fr;
  gap: var(--gap);
  align-items: stretch;
}

.hero-name {
  font-family: var(--font-display);
  font-size: clamp(38px, 5vw, 56px);
  line-height: 1.05;
  color: #fff;
  margin-bottom: 16px;
}
.hero-name em { font-style: italic; color: var(--accent); }

.hero-role {
  font-size: 14px;
  color: var(--text-2);
  font-weight: 300;
  line-height: 1.75;
  max-width: 400px;
  margin-bottom: 36px;
}

/* Photo column */
.hero-photo-wrap {
  position: relative;
  display: flex;
  flex-direction: column;
}

.hero-photo {
  width: 100%;
  flex: 1;
  object-fit: cover;
  object-position: center top;
  border-radius: var(--r-lg) var(--r-lg) 0 0;
  border: 0.5px solid var(--border);
  display: block;
  min-height: 0;
}

/* Accent glow overlay on photo */
.hero-photo-wrap::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 44px; /* leave caption uncovered */
  border-radius: var(--r-lg) var(--r-lg) 0 0;
  background: linear-gradient(160deg, rgba(99,153,250,0.18) 0%, transparent 55%);
  pointer-events: none;
  z-index: 1;
}

.hero-photo-caption {
  background: rgba(255,255,255,0.03);
  border: 0.5px solid var(--border-faint);
  border-top: 0.5px solid var(--border);
  border-radius: 0 0 var(--r-lg) var(--r-lg);
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.hero-photo-name {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--text);
}

.hero-photo-title {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--accent);
  text-transform: uppercase;
}

/* Stat cards column */
.hero-stats {
  display: grid;
  grid-template-rows: 1fr 1fr;
  gap: var(--gap);
}

.stat-card {
  background: rgba(255,255,255,0.03);
  border: 0.5px solid var(--border-faint);
  border-radius: var(--r-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.stat-number {
  font-family: var(--font-display);
  font-size: clamp(40px, 5vw, 52px);
  color: #fff;
  line-height: 1;
}
.stat-number sup {
  font-size: 0.52em;
  color: rgba(255,255,255,0.3);
  vertical-align: super;
}

.stat-unit {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-top: 6px;
}

.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 300;
  line-height: 1.6;
  margin-top: 16px;
}

/* Alert variant — red left-border accent for outcome-type stats */
.stat-card--alert {
  border-left: 2px solid rgba(248, 113, 113, 0.5);
}
.stat-card--alert .stat-unit {
  color: #f87171;
}
.stat-card--alert .stat-number sup {
  color: rgba(248, 113, 113, 0.4);
}

/* -----------------------------------------------------------------------
   9a. How I Think — principles
   -------------------------------------------------------------------- */
.principles {
  padding: 80px var(--pad);
  border-bottom: 0.5px solid var(--border-faint);
}

.principles-inner { max-width: 1200px; margin-inline: auto; }

.principles-heading {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.5vw, 42px);
  color: #fff;
  line-height: 1.1;
  margin-bottom: 52px;
}
.principles-heading em { font-style: italic; color: var(--accent); }

.principles-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gap);
}

.principle {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 28px;
  background: rgba(255,255,255,0.03);
  border: 0.5px solid var(--border-faint);
  border-radius: var(--r-lg);
  position: relative;
  overflow: hidden;
}

/* Top colour bar */
.principle-marker {
  height: 2px;
  border-radius: 2px;
  width: 40px;
  flex-shrink: 0;
}
.principle-marker--blue  { background: var(--accent); }
.principle-marker--amber { background: var(--amber); }
.principle-marker--teal  { background: var(--teal); }
.principle-marker--red   { background: #f87171; }

/* Faint corner glow matching the marker color */
.principle::before {
  content: '';
  position: absolute;
  top: -30px;
  left: -30px;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  pointer-events: none;
  opacity: 0.06;
}
.principle:nth-child(1)::before { background: var(--accent); }
.principle:nth-child(2)::before { background: var(--amber); }
.principle:nth-child(3)::before { background: var(--teal); }
.principle:nth-child(4)::before { background: #f87171; }

.principle-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 400;
  color: #fff;
  line-height: 1.2;
}

.principle-text {
  font-size: 13px;
  color: var(--text-2);
  font-weight: 300;
  line-height: 1.75;
}

/* -----------------------------------------------------------------------
   9. Three panels
   -------------------------------------------------------------------- */
.panels {
  padding: 0 var(--pad) 80px;
}

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

.panel-header {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--text-muted);
  text-transform: uppercase;
  border-bottom: 0.5px solid var(--border-faint);
  padding-bottom: 14px;
  margin-bottom: 22px;
}

/* Tags */
.tags { display: flex; flex-wrap: wrap; gap: 6px; }

.tag {
  display: inline-block;
  padding: 5px 10px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
}
.tag--blue   { background: var(--accent-dim); color: var(--accent); border: 0.5px solid rgba(99,153,250,0.28); }
.tag--teal   { background: var(--teal-dim);   color: var(--teal);   border: 0.5px solid rgba(29,158,117,0.28); }
.tag--amber  { background: var(--amber-dim);  color: var(--amber);  border: 0.5px solid rgba(186,117,23,0.28); }
.tag--red    { background: var(--red-dim);    color: var(--red);    border: 0.5px solid rgba(220,38,38,0.28); }

/* Timeline */
.timeline { display: flex; flex-direction: column; gap: 18px; }

.timeline-item {
  display: grid;
  grid-template-columns: 8px 1fr;
  gap: 14px;
  align-items: start;
}

.tl-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  margin-top: 5px;
  flex-shrink: 0;
}
.tl-dot--active  { background: var(--accent); }
.tl-dot--mid     { background: rgba(232,234,242,0.25); }
.tl-dot--dim     { background: rgba(232,234,242,0.1); }

.tl-date { font-family: var(--font-mono); font-size: 10px; color: var(--text-muted); letter-spacing: 0.08em; margin-bottom: 3px; }
.tl-role { font-size: 13px; font-weight: 500; color: var(--text); line-height: 1.35; }
.tl-org  { font-size: 11px; color: var(--text-muted); margin-top: 3px; }

/* Credentials */
.creds { display: flex; flex-direction: column; gap: 14px; }

.cred { display: flex; align-items: flex-start; gap: 12px; }

.cred-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(99,153,250,0.1);
  border: 0.5px solid rgba(99,153,250,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.cred-name   { font-size: 12px; color: var(--text-2); line-height: 1.3; }
.cred-issuer { font-family: var(--font-mono); font-size: 10px; color: var(--accent); letter-spacing: 0.1em; margin-top: 2px; }

/* -----------------------------------------------------------------------
   10. About
   -------------------------------------------------------------------- */
.about {
  border-top: 0.5px solid var(--border-faint);
  border-bottom: 0.5px solid var(--border-faint);
  padding: 80px var(--pad);
}

.about-inner {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 64px;
  align-items: start;
}

.about-heading {
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 36px);
  line-height: 1.15;
  color: #fff;
  position: sticky;
  top: calc(var(--nav-h) + 24px);
}
.about-heading em { font-style: italic; color: var(--accent); }

.about-graphic {
  margin-top: 32px;
  border-radius: var(--r-lg);
  border: 0.5px solid var(--border-faint);
  background: #070c18;
  overflow: hidden;
  line-height: 0;
}

.about-body { font-size: 15px; line-height: 1.82; color: var(--text-2); font-weight: 300; }
.about-body p + p { margin-top: 20px; }
.about-body strong { color: var(--text); font-weight: 500; }

/* -----------------------------------------------------------------------
   11. Impact
   -------------------------------------------------------------------- */
.impact {
  padding: 80px var(--pad);
  border-bottom: 0.5px solid var(--border-faint);
}

.impact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gap);
}

.impact-item {
  background: rgba(255,255,255,0.03);
  border: 0.5px solid var(--border-faint);
  border-radius: var(--r-lg);
  padding: 28px 24px;
}

.impact-number {
  font-family: var(--font-display);
  font-size: clamp(36px, 4vw, 48px);
  color: #fff;
  line-height: 1;
}
.impact-number--red   { color: #f87171; }
.impact-number--amber { color: var(--amber); }
.impact-number--teal  { color: var(--teal); }
.impact-sup {
  font-family: var(--font-display);
  font-size: 0.48em;
  color: rgba(255,255,255,0.3);
  vertical-align: super;
}
.impact-number--red   .impact-sup { color: rgba(248,113,113,0.4); }
.impact-number--amber .impact-sup { color: rgba(245,199,117,0.4); }
.impact-number--teal  .impact-sup { color: rgba(45,203,149,0.4); }

.impact-unit {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--accent);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-top: 6px;
  margin-bottom: 14px;
}

.impact-note {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 300;
  line-height: 1.65;
}

/* -----------------------------------------------------------------------
   12. Contact
   -------------------------------------------------------------------- */
.contact {
  padding: 100px var(--pad);
  text-align: center;
}

.contact-inner { max-width: 600px; margin-inline: auto; }

.contact-heading {
  font-family: var(--font-display);
  font-size: clamp(30px, 4vw, 44px);
  color: #fff;
  line-height: 1.1;
  margin-bottom: 16px;
}
.contact-heading em { font-style: italic; color: var(--accent); }

.contact-sub {
  font-size: 15px;
  color: var(--text-2);
  font-weight: 300;
  margin-bottom: 36px;
  line-height: 1.75;
}

/* -----------------------------------------------------------------------
   13. Footer
   -------------------------------------------------------------------- */
.site-footer {
  border-top: 0.5px solid var(--border-faint);
  padding: 28px var(--pad);
}

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

.footer-logo {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  text-transform: uppercase;
  text-decoration: none;
}
.footer-logo:hover { color: var(--text); }

.footer-links {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}
.footer-links a {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  text-decoration: none;
}
.footer-links a:hover { color: var(--text); }

.footer-link--linkedin {
  color: var(--accent) !important;
  letter-spacing: 0.08em;
}
.footer-link--linkedin:hover { color: #fff !important; }

.footer-copy {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

/* -----------------------------------------------------------------------
   14. Focus / accessibility
   -------------------------------------------------------------------- */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 3px;
}

/* -----------------------------------------------------------------------
   15. Responsive
   -------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .impact-grid     { grid-template-columns: repeat(2, 1fr); }
  .principles-grid { grid-template-columns: repeat(2, 1fr); }
  /* Collapse photo into 2-col hero on medium screens */
  .hero-grid { grid-template-columns: 1.4fr 1fr; }
  .hero-photo-wrap { display: none; }
}

@media (max-width: 860px) {
  :root { --pad: 24px; }

  .hero-grid       { grid-template-columns: 1fr; }
  .hero-photo-wrap { display: flex; }
  .hero-stats      { grid-template-columns: 1fr 1fr; grid-template-rows: auto; }
  .panels-grid     { grid-template-columns: 1fr; }
  .principles-grid { grid-template-columns: 1fr; }
  .about-inner     { grid-template-columns: 1fr; gap: 32px; }
  .about-heading   { position: static; }
  .about-graphic   { display: none; }

  /* Photo full-width in hero on mobile */
  .hero-photo {
    aspect-ratio: 3 / 2;
    object-position: center 15%;
    border-radius: var(--r-lg) var(--r-lg) 0 0;
  }
  .hero-photo-wrap::before { bottom: 44px; }

  /* Nav */
  .main-nav {
    display: none;
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: rgba(10,15,30,0.98);
    border-bottom: 0.5px solid var(--border-faint);
    padding: 24px var(--pad);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
  }
  .main-nav.is-open { display: block; }
  .main-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }
  .main-nav a { font-size: 13px; }
  .nav-cta { display: inline-block; margin-top: 4px; }
  .nav-toggle { display: flex; }

  /* Sections */
  .hero    { padding: 48px var(--pad) 40px; }
  .hero-main { padding: 32px 28px; }
  .panels  { padding: 0 var(--pad) 48px; }
  .about   { padding: 56px var(--pad); }
  .impact  { padding: 56px var(--pad); }
  .contact { padding: 72px var(--pad); }

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

@media (max-width: 560px) {
  .hero-stats    { grid-template-columns: 1fr; }
  .impact-grid   { grid-template-columns: 1fr; }
  .btn-row       { flex-direction: column; }
  .btn-row--center { align-items: center; }
  .footer-links  { flex-direction: column; gap: 12px; }

  /* Tighten hero on very small screens */
  .hero-name { font-size: 36px; }
  .hero-main { padding: 24px 20px; }
  .stat-card { padding: 22px; }
  .stat-number { font-size: 38px; }
}