/* ============================================================
   Zach Johnson: Midnight Boardroom design system
   Palette, type, and layout per ZachJohnson_Site_BuildSpec.md
   ============================================================ */

:root {
  --navy-velvet:   #0E1A2B;
  --navy-deep:     #0A1420;
  --navy-raised:   #16273D;
  --champagne:     #EDE6D6;
  --marble:        #F6F2EA;
  --marble-ink:    #1B2430;
  --bronze:        #B08D57;
  --bronze-bright: #C9A46B;
  --walnut:        #4A3B2E;
  --patina:        #5E7A6F;
  --hairline:      rgba(237, 230, 214, 0.14);
  --hairline-ink:  rgba(27, 36, 48, 0.14);

  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "Consolas", monospace;

  --container: 1140px;
  --nav-height: 4rem;
}

/* ---------- Reset and base ---------- */

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-padding-top: calc(var(--nav-height) + 1rem);
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  background: var(--navy-velvet);
  color: var(--champagne);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 { margin: 0; font-family: var(--font-display); font-weight: 500; }
p, ul, ol { margin: 0; }
img { max-width: 100%; display: block; }

a { color: var(--bronze-bright); text-decoration: none; }

:focus-visible {
  outline: 2px solid var(--bronze);
  outline-offset: 3px;
  border-radius: 2px;
}

.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  z-index: 100;
  padding: 0.6rem 1rem;
  background: var(--bronze);
  color: var(--navy-deep);
  font-weight: 600;
  border-radius: 4px;
  transition: top 150ms ease;
}
.skip-link:focus { top: 1rem; }

/* ---------- Utility type ---------- */

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bronze);
  margin-bottom: 1.25rem;
}

.eyebrow-marble { color: var(--walnut); }

.section-heading {
  font-size: clamp(1.9rem, 3.6vw, 2.75rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
}

.section-intro {
  max-width: 62ch;
  color: rgba(237, 230, 214, 0.82);
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

/* ---------- Sections ---------- */

.section {
  padding-block: clamp(4.5rem, 9vw, 7.5rem);
  border-top: 1px solid var(--hairline);
}

.section-marble {
  background: var(--marble);
  color: var(--marble-ink);
  border-top: none;
}

.section-marble a { color: var(--walnut); }

.section-deep {
  background: var(--navy-deep);
  border-top: none;
}

/* ---------- Nav ---------- */

.site-nav {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 50;
  height: var(--nav-height);
  background: rgba(10, 20, 32, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--hairline);
}

.nav-inner {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--champagne);
  letter-spacing: 0.01em;
}
.brand:hover { color: var(--bronze-bright); }

.nav-links {
  display: flex;
  gap: clamp(1.25rem, 2.5vw, 2.25rem);
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(237, 230, 214, 0.78);
  padding-block: 0.35rem;
  border-bottom: 1px solid transparent;
  transition: color 150ms ease, border-color 150ms ease;
}

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

.nav-links a[aria-current="true"] {
  color: var(--bronze-bright);
  border-bottom-color: var(--bronze);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: 0.75rem 0.25rem;
  cursor: pointer;
  flex-direction: column;
  gap: 6px;
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--champagne);
  transition: transform 200ms ease, opacity 200ms ease;
}

@media (max-width: 720px) {
  .nav-toggle { display: flex; }

  .nav-links {
    position: absolute;
    top: var(--nav-height);
    inset-inline: 0;
    flex-direction: column;
    gap: 0;
    background: var(--navy-deep);
    border-bottom: 1px solid var(--hairline);
    padding: 0.5rem 0 1rem;
    display: none;
  }

  .nav-links.open { display: flex; }

  .nav-links a {
    padding: 0.85rem clamp(1.25rem, 4vw, 2.5rem);
    border-bottom: none;
    font-size: 1rem;
  }

  .nav-links a[aria-current="true"] {
    border-left: 2px solid var(--bronze);
    padding-left: calc(clamp(1.25rem, 4vw, 2.5rem) - 2px);
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle-bar:first-child {
    transform: translateY(4px) rotate(45deg);
  }
  .nav-toggle[aria-expanded="true"] .nav-toggle-bar:last-child {
    transform: translateY(-4px) rotate(-45deg);
  }
}

/* ---------- Hero ---------- */

.hero {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-block: calc(var(--nav-height) + 3rem) 4rem;
}

.hero-inner { max-width: var(--container); }

.hero-headline {
  font-size: clamp(2.35rem, 6vw, 4.25rem);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.015em;
  max-width: 18ch;
  margin-bottom: 1.5rem;
}

/* Signature element: fountain-pen underline that draws itself on load */
.signature-stroke {
  width: min(300px, 45%);
  height: 2px;
  background: linear-gradient(90deg, var(--bronze), var(--bronze-bright));
  margin-bottom: 2rem;
  transform-origin: left center;
}

@media (prefers-reduced-motion: no-preference) {
  .signature-stroke {
    transform: scaleX(0);
    animation: draw-stroke 1.2s cubic-bezier(0.65, 0, 0.25, 1) 0.5s forwards;
  }
}

@keyframes draw-stroke {
  to { transform: scaleX(1); }
}

.hero-subhead {
  max-width: 58ch;
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  color: rgba(237, 230, 214, 0.82);
  margin-bottom: 2.5rem;
}

.hero-ctas {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Optional headshot slot (see comment in index.html)
.hero-headshot {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--hairline);
  margin-bottom: 1.75rem;
}
*/

/* ---------- Buttons ---------- */

.btn {
  display: inline-block;
  padding: 0.8rem 1.6rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 4px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 150ms ease, border-color 150ms ease, color 150ms ease;
}

.btn-primary {
  background: var(--bronze);
  color: var(--navy-deep);
}

.btn-primary:hover {
  background: var(--bronze-bright);
}

.btn-ghost {
  border-color: rgba(237, 230, 214, 0.35);
  color: var(--champagne);
}

.btn-ghost:hover {
  border-color: var(--bronze);
  color: var(--bronze-bright);
}

/* ---------- About (marble) ---------- */

.about-body {
  max-width: 68ch;
  display: grid;
  gap: 1.25rem;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.about-body p { color: rgba(27, 36, 48, 0.88); }

.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.5rem, 3vw, 3rem);
}

@media (max-width: 720px) {
  .pillars { grid-template-columns: 1fr; }
}

.pillar {
  border-top: 2px solid var(--bronze);
  padding-top: 1.1rem;
}

.pillar h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.pillar p {
  font-size: 0.9375rem;
  color: rgba(27, 36, 48, 0.75);
}

/* ---------- Experience timeline ---------- */

.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
  max-width: 760px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--bronze), rgba(176, 141, 87, 0.15));
}

.role {
  position: relative;
  padding-left: 2.25rem;
  padding-bottom: clamp(2.25rem, 4vw, 3rem);
}

.role:last-child { padding-bottom: 0; }

.role::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--navy-velvet);
  border: 2px solid var(--bronze);
}

.role-title {
  font-size: 1.35rem;
  line-height: 1.25;
  margin-bottom: 0.4rem;
}

.role-meta {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.03em;
  color: var(--bronze-bright);
  margin-bottom: 0.9rem;
}

.role-points {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 0.55rem;
  max-width: 66ch;
}

.role-points li {
  font-size: 0.9688rem;
  color: rgba(237, 230, 214, 0.82);
  padding-left: 1.1rem;
  position: relative;
}

.role-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 5px;
  height: 1px;
  background: var(--bronze);
}

.role-points strong { color: var(--champagne); font-weight: 600; }

/* ---------- Work / project cards ---------- */

.cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.25rem, 2.5vw, 2rem);
}

.card-featured { grid-column: 1 / -1; }

@media (max-width: 860px) {
  .cards { grid-template-columns: 1fr; }
}

.card {
  background: var(--navy-raised);
  border: 1px solid var(--hairline);
  border-radius: 10px;
  padding: clamp(1.75rem, 3.5vw, 2.75rem);
  display: flex;
  flex-direction: column;
  transition: transform 180ms ease, border-color 180ms ease;
}

.card:hover {
  transform: translateY(-2px);
  border-color: rgba(176, 141, 87, 0.45);
}

@media (prefers-reduced-motion: reduce) {
  .card:hover { transform: none; }
}

.tags {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.4rem;
}

.tags li {
  font-family: var(--font-mono);
  font-size: 0.7188rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--bronze-bright);
  border: 1px solid rgba(176, 141, 87, 0.4);
  border-radius: 999px;
  padding: 0.28rem 0.7rem;
}

.card-title {
  font-size: clamp(1.4rem, 2.2vw, 1.75rem);
  line-height: 1.2;
  margin-bottom: 0.6rem;
}

.card-descriptor {
  font-size: 1.0313rem;
  font-weight: 500;
  color: var(--champagne);
  margin-bottom: 1.25rem;
  max-width: 60ch;
}

.card-body {
  font-size: 0.9375rem;
  color: rgba(237, 230, 214, 0.78);
  margin-bottom: 1.25rem;
  max-width: 75ch;
}

.card-role strong { color: var(--champagne); }

.card-links {
  margin-top: auto;
  display: flex;
  gap: 1.75rem;
  flex-wrap: wrap;
}

.card-link {
  font-size: 0.9063rem;
  font-weight: 600;
  color: var(--bronze-bright);
  border-bottom: 1px solid rgba(201, 164, 107, 0.35);
  padding-bottom: 2px;
  transition: border-color 150ms ease, color 150ms ease;
}

.card-link:hover {
  color: var(--champagne);
  border-bottom-color: var(--champagne);
}

.card-link-secondary {
  font-weight: 500;
  color: rgba(237, 230, 214, 0.7);
  border-bottom-color: var(--hairline);
}

.link-arrow {
  display: inline-block;
  margin-left: 0.35rem;
  font-size: 0.8em;
}

/* KTOS pull-stat */

.pull-stat {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: clamp(1.25rem, 3vw, 2.5rem);
  border-block: 1px solid var(--hairline);
  padding-block: 1.4rem;
  margin-bottom: 1.5rem;
}

.stat { display: flex; flex-direction: column; gap: 0.2rem; }

.stat-num {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.9rem);
  font-weight: 600;
  line-height: 1;
  color: var(--champagne);
}

.stat-em .stat-num { color: var(--bronze-bright); }

.stat-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(237, 230, 214, 0.6);
}

.stat-em .stat-label { color: var(--bronze); }

.stat-vs {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: rgba(237, 230, 214, 0.5);
}

/* ---------- Capabilities (marble) ---------- */

.skill-groups {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.75rem, 3.5vw, 3rem);
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

@media (max-width: 720px) {
  .skill-groups { grid-template-columns: 1fr; }
}

.skill-group-label {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--walnut);
  margin-bottom: 0.9rem;
}

.chips {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.chips li {
  font-size: 0.875rem;
  color: var(--marble-ink);
  border: 1px solid var(--hairline-ink);
  border-radius: 999px;
  padding: 0.4rem 0.9rem;
  background: rgba(255, 255, 255, 0.4);
}

.credentials {
  border-top: 1px solid var(--hairline-ink);
  padding-top: 2rem;
}

.chips-cred li {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}

.chips-cred .cred-em {
  background: var(--walnut);
  border-color: var(--walnut);
  color: var(--marble);
  font-weight: 500;
}

/* ---------- Contact ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}

@media (max-width: 780px) {
  .contact-grid { grid-template-columns: 1fr; }
}

#contact-form {
  display: grid;
  gap: 1.25rem;
}

.field { display: grid; gap: 0.4rem; }

.field label {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(237, 230, 214, 0.75);
}

.field input,
.field textarea {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--champagne);
  background: var(--navy-raised);
  border: 1px solid var(--hairline);
  border-radius: 6px;
  padding: 0.75rem 0.9rem;
  transition: border-color 150ms ease;
  resize: vertical;
}

.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--bronze);
}

.field.invalid input,
.field.invalid textarea {
  border-color: var(--bronze-bright);
}

.field-error {
  font-size: 0.8438rem;
  color: var(--bronze-bright);
}

.visually-hidden-field {
  position: absolute !important;
  left: -9999px !important;
  width: 1px;
  height: 1px;
  opacity: 0;
}

#cf-submit { justify-self: start; }

#cf-submit[disabled] {
  opacity: 0.6;
  cursor: wait;
}

.form-status:empty { display: none; }

.form-status {
  font-size: 0.9375rem;
  padding-left: 0.9rem;
  border-left: 2px solid var(--bronze);
}

.form-status.success { border-left-color: var(--patina); }

.contact-direct {
  display: grid;
  gap: 0.9rem;
  padding-top: 0.35rem;
}

.direct-link {
  font-size: 1.0625rem;
  font-weight: 500;
  color: var(--champagne);
  border-bottom: 1px solid var(--hairline);
  padding-bottom: 0.65rem;
  transition: color 150ms ease, border-color 150ms ease;
}

.direct-link:hover {
  color: var(--bronze-bright);
  border-bottom-color: var(--bronze);
}

/* ---------- Footer ---------- */

.site-footer {
  background: var(--navy-deep);
  border-top: 1px solid var(--hairline);
  padding-block: 2.25rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-line {
  font-size: 0.9063rem;
  color: rgba(237, 230, 214, 0.75);
}

.footer-line a { color: var(--bronze-bright); }
.footer-line a:hover { color: var(--champagne); }

.footer-small {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: rgba(237, 230, 214, 0.45);
}

/* ---------- Scroll reveal (JS adds .in-view; gated on motion pref) ---------- */

@media (prefers-reduced-motion: no-preference) {
  html.js .reveal {
    opacity: 0;
    transform: translateY(14px);
    transition: opacity 500ms ease, transform 500ms ease;
  }

  html.js .reveal.in-view {
    opacity: 1;
    transform: none;
  }
}

/* Print and any frame-less rendering context: never hide revealed content */
@media print {
  html.js .reveal {
    opacity: 1 !important;
    transform: none !important;
  }

  .site-nav { position: static; }
}