/* ============================================================
   CODIFIDE.COM — Design System
   Brand palette extracted from codifide_logo_fnl_PMS.svg
   ============================================================ */

:root {
  /* Brand colors */
  --navy:       #001689;   /* primary — deep navy (wordmark right half) */
  --sky:        #4FA7C5;   /* accent — sky blue (wordmark left half) */
  --purple:     #5F54AD;   /* supporting — soft purple (gem left-mid) */
  --teal:       #0083AD;   /* supporting — teal (gem bottom-left) */

  /* Derived tones */
  --navy-dark:  #000f5c;
  --navy-light: #1a2fa8;
  --sky-light:  #7ec4d9;
  --sky-pale:   #e8f5fa;

  /* Neutrals */
  --white:      #ffffff;
  --gray-50:    #f8f9fc;
  --gray-100:   #f0f2f8;
  --gray-200:   #dde1ef;
  --gray-400:   #9099b8;
  --gray-600:   #4a5270;
  --gray-800:   #1e2340;
  --black:      #0a0c1a;

  /* Typography */
  --font-sans:  'Inter', system-ui, -apple-system, sans-serif;
  --font-mono:  'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 6rem;

  /* Layout */
  --container-max: 1200px;
  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,22,137,0.08), 0 1px 2px rgba(0,22,137,0.04);
  --shadow-md:  0 4px 16px rgba(0,22,137,0.10), 0 2px 6px rgba(0,22,137,0.06);
  --shadow-lg:  0 12px 40px rgba(0,22,137,0.14), 0 4px 12px rgba(0,22,137,0.08);

  /* Transitions */
  --transition: 200ms ease;
}

/* ============================================================
   RESET & BASE
   ============================================================ */

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

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

body {
  font-family: var(--font-sans);
  font-weight: 400;
  color: var(--gray-800);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

/* ============================================================
   LAYOUT
   ============================================================ */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.section {
  padding-block: var(--space-24);
}

/* ============================================================
   TYPOGRAPHY
   ============================================================ */

h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.15;
  color: var(--navy);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.35rem); }

p { line-height: 1.7; }

.text-sky { color: var(--sky); }

/* ============================================================
   BUTTONS
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background var(--transition), color var(--transition),
              border-color var(--transition), box-shadow var(--transition),
              transform var(--transition);
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 3px solid var(--sky);
  outline-offset: 3px;
}

.btn-primary {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
}
.btn-primary:hover {
  background: var(--navy-light);
  border-color: var(--navy-light);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--navy);
  border-color: var(--navy);
}
.btn-outline:hover {
  background: var(--navy);
  color: var(--white);
}

.btn-ghost {
  background: transparent;
  color: var(--sky);
  border-color: transparent;
  padding-inline: 0;
}
.btn-ghost:hover {
  color: var(--sky-light);
}

.btn-lg {
  padding: 0.85rem 2rem;
  font-size: 1.05rem;
}

/* ============================================================
   HEADER / NAV
   ============================================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: var(--space-8);
}

.nav-logo img {
  height: 44px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gray-600);
  transition: color var(--transition);
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* ============================================================
   HERO
   ============================================================ */

.hero {
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 50%, #0a2080 100%);
  color: var(--white);
  padding-block: var(--space-24);
  overflow: hidden;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(79,167,197,0.15) 0%, transparent 60%);
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
  position: relative;
}

.hero-eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sky);
  margin-bottom: var(--space-4);
}

.hero h1 {
  color: var(--white);
  margin-bottom: var(--space-6);
}

.hero-lead {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.75);
  max-width: 520px;
  margin-bottom: var(--space-8);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
}

/* Gem graphic */
.hero-graphic {
  display: flex;
  justify-content: center;
  align-items: center;
}

.gem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  width: 280px;
  height: 280px;
}

.gem {
  border-radius: var(--radius-md);
  opacity: 0.85;
  animation: gem-pulse 4s ease-in-out infinite;
}

.gem-1 {
  background: linear-gradient(135deg, var(--sky) 0%, var(--teal) 100%);
  animation-delay: 0s;
}
.gem-2 {
  background: linear-gradient(135deg, var(--navy-light) 0%, var(--purple) 100%);
  animation-delay: 0.5s;
  transform: translateY(12px);
}
.gem-3 {
  background: linear-gradient(135deg, var(--purple) 0%, var(--navy-light) 100%);
  animation-delay: 1s;
  transform: translateY(-12px);
}
.gem-4 {
  background: linear-gradient(135deg, var(--teal) 0%, var(--sky) 100%);
  animation-delay: 1.5s;
}

@keyframes gem-pulse {
  0%, 100% { opacity: 0.75; transform: scale(1); }
  50%       { opacity: 1;    transform: scale(1.04); }
}

/* ============================================================
   SECTION HEADERS
   ============================================================ */

.section-header {
  text-align: center;
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: var(--space-12);
}

.section-header--left {
  text-align: left;
  margin-inline: 0;
}

.section-sub {
  margin-top: var(--space-4);
  font-size: 1.05rem;
  color: var(--gray-600);
}

/* ============================================================
   PROJECTS
   ============================================================ */

.projects {
  background: var(--gray-50);
}

.project-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}

.project-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  transition: box-shadow var(--transition), transform var(--transition);
}

.project-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.project-card--featured {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  color: var(--white);
  border-color: transparent;
}

.project-card--featured h3,
.project-card--featured .project-card-tagline {
  color: var(--white);
}

.project-card--featured .project-card-body {
  color: rgba(255,255,255,0.8);
}

.project-card--featured .project-card-features li {
  color: rgba(255,255,255,0.85);
}

.project-card--featured .project-card-features li::before {
  background: var(--sky);
}

.project-card-tag {
  display: inline-flex;
  align-items: center;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--sky);
  background: rgba(79,167,197,0.12);
  padding: 0.25rem 0.65rem;
  border-radius: 100px;
  width: fit-content;
}

.project-card--featured .project-card-tag {
  background: rgba(79,167,197,0.2);
}

.project-card h3 {
  font-size: 1.5rem;
  margin-top: var(--space-1);
}

.project-card-tagline {
  font-size: 1rem;
  font-weight: 500;
  color: var(--gray-600);
}

.project-card-body {
  font-size: 0.95rem;
  color: var(--gray-600);
  line-height: 1.7;
}

.project-card-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.project-card-features li {
  font-size: 0.9rem;
  color: var(--gray-600);
  padding-left: var(--space-4);
  position: relative;
}

.project-card-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--sky);
}

/* Code block */
.project-card-code {
  background: rgba(0,0,0,0.35);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-6);
  overflow-x: auto;
}

.project-card-code pre {
  margin: 0;
}

.project-card-code code {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.9);
}

.code-keyword { color: var(--sky); font-weight: 600; }
.code-string  { color: #a8d8a8; }

/* Language launch card */
.project-card-launch {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-2);
}

.project-card-launch-logo img {
  height: 64px;
  width: auto;
  filter: brightness(0) invert(1);
}

.project-card-tag--launch {
  background: rgba(79,167,197,0.25);
  color: var(--sky-light);
  font-size: 0.78rem;
  padding: 0.3rem 0.8rem;
  border-radius: 100px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Language pillars */
.lang-pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-block: var(--space-6);
}

.lang-pillar {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-md);
  padding: var(--space-4);
}

.lang-pillar-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sky);
  margin-bottom: var(--space-2);
}

.lang-pillar p {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.6;
  margin: 0;
}

.lang-pillar code {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--sky-light);
  background: rgba(0,0,0,0.2);
  padding: 0.1em 0.3em;
  border-radius: 3px;
}

/* Language stats */
.lang-stats {
  display: flex;
  gap: var(--space-8);
  flex-wrap: wrap;
  padding: var(--space-4) 0;
  border-top: 1px solid rgba(255,255,255,0.12);
  border-bottom: 1px solid rgba(255,255,255,0.12);
  margin-block: var(--space-4);
}

.lang-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.lang-stat-num {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--sky);
  line-height: 1;
}

.lang-stat-label {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.55);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Language actions */
.lang-actions {
  display: flex;
  gap: var(--space-4);
  align-items: center;
  flex-wrap: wrap;
  margin-top: var(--space-2);
}

.lang-coming-soon {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.45);
  font-style: italic;
}

/* Governance project card */
.project-card--governance {
  background: linear-gradient(135deg, var(--purple) 0%, #3d3480 100%);
  color: var(--white);
  border-color: transparent;
  grid-column: 1 / -1;
}

.project-card--governance h3,
.project-card--governance .project-card-tagline {
  color: var(--white);
}

.project-card--governance .project-card-body {
  color: rgba(255,255,255,0.8);
}

.project-card--governance .project-card-features li {
  color: rgba(255,255,255,0.85);
}

.project-card--governance .project-card-features li::before {
  background: var(--sky);
}

.project-card--governance .project-card-tag {
  background: rgba(79,167,197,0.2);
  color: var(--sky-light);
}

.project-card--governance .project-card-link {
  color: var(--sky-light);
}

.project-card-principle {
  background: rgba(0,0,0,0.25);
  border-left: 3px solid var(--sky);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: var(--space-3) var(--space-4);
  font-size: 0.9rem;
  font-style: italic;
  color: rgba(255,255,255,0.85);
}

.project-card-private {
  font-size: 0.82rem;
  color: var(--gray-400);
  margin-top: var(--space-2);
}

.project-card-private a {
  color: var(--sky);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* Stack tags */
.project-card-stack {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.stack-tag {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--navy);
  background: var(--sky-pale);
  border: 1px solid var(--gray-200);
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
}

.project-card-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--sky);
  margin-top: auto;
  transition: color var(--transition);
}

.project-card-link:hover {
  color: var(--sky-light);
}

.project-card--featured .project-card-link {
  color: var(--sky-light);
}

/* ============================================================
   AI GOVERNANCE
   ============================================================ */

.governance {
  background: var(--white);
}

.governance-inner {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: var(--space-16);
  align-items: start;
}

.governance-pillars {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  margin-block: var(--space-8);
}

.pillar {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.pillar-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  background: var(--sky-pale);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--navy);
}

.pillar h3 {
  font-size: 1rem;
  margin-bottom: var(--space-2);
  color: var(--navy);
}

.pillar p {
  font-size: 0.9rem;
  color: var(--gray-600);
  line-height: 1.65;
}

/* Quote stack */
.governance-quote-stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  position: sticky;
  top: 100px;
}

.governance-quote {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-8);
  border-left: 4px solid var(--sky);
}

.governance-quote--offset {
  margin-left: var(--space-6);
  background: linear-gradient(135deg, var(--purple) 0%, var(--teal) 100%);
  border-left-color: rgba(255,255,255,0.4);
}

.governance-quote--teal {
  background: linear-gradient(135deg, var(--teal) 0%, #005f80 100%);
  border-left-color: var(--sky-light);
}

.governance-quote p {
  font-size: 1rem;
  font-style: italic;
  line-height: 1.6;
  color: rgba(255,255,255,0.92);
}

.governance-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
}

/* ============================================================
   ABOUT
   ============================================================ */

.about {
  background: var(--gray-50);
}

.about-inner {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: var(--space-16);
  align-items: start;
}

.about-text h2 {
  margin-bottom: var(--space-6);
}

.about-text p {
  color: var(--gray-600);
  margin-bottom: var(--space-4);
}

.about-text p:last-child {
  margin-bottom: 0;
}

.about-text strong {
  color: var(--navy);
  font-weight: 600;
}

.about-links h3 {
  font-size: 1rem;
  margin-bottom: var(--space-4);
  color: var(--navy);
}

.connect-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.connect-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gray-600);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  background: var(--white);
  transition: border-color var(--transition), color var(--transition),
              box-shadow var(--transition), transform var(--transition);
}

.connect-link:hover {
  border-color: var(--sky);
  color: var(--navy);
  box-shadow: var(--shadow-sm);
  transform: translateX(3px);
}

.connect-link svg {
  flex-shrink: 0;
  color: var(--sky);
}

.veteran-owned {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--navy);
  margin-top: var(--space-2);
}

.veteran-owned svg {
  color: var(--sky);
  flex-shrink: 0;
}

/* ============================================================
   CONTACT
   ============================================================ */

.contact {
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 100%);
  color: var(--white);
  text-align: center;
}

.contact-inner {
  max-width: 560px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
}

.contact h2 {
  color: var(--white);
}

.contact p {
  color: rgba(255,255,255,0.75);
  font-size: 1.05rem;
}

/* ============================================================
   FOOTER
   ============================================================ */

.site-footer {
  background: var(--black);
  padding-block: var(--space-8);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-logo img {
  height: 32px;
  width: auto;
  opacity: 0.85;
  filter: brightness(0) invert(1);
}

.footer-copy {
  font-size: 0.82rem;
  color: var(--gray-400);
}

.footer-nav {
  display: flex;
  gap: var(--space-6);
}

.footer-nav a {
  font-size: 0.82rem;
  color: var(--gray-400);
  transition: color var(--transition);
}

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

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }
  .hero-graphic {
    display: none;
  }
  .governance-inner,
  .about-inner {
    grid-template-columns: 1fr;
  }
  .governance-quote-stack {
    position: static;
    flex-direction: column;
  }
  .governance-quote--offset {
    margin-left: 0;
  }
}

@media (max-width: 768px) {
  .project-grid {
    grid-template-columns: 1fr;
  }
  .project-card--featured {
    grid-column: auto;
  }
  .lang-pillars {
    grid-template-columns: 1fr 1fr;
  }
  .nav-links {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-4) var(--space-6);
    gap: var(--space-4);
    box-shadow: var(--shadow-md);
  }
  .nav-links.is-open {
    display: flex;
  }
  .nav-toggle {
    display: flex;
  }
  .nav {
    position: relative;
  }
  .governance-quote-stack {
    flex-direction: column;
  }
  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
  .footer-nav {
    flex-wrap: wrap;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .section {
    padding-block: var(--space-16);
  }
  .hero {
    padding-block: var(--space-16);
  }
  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }
  .project-card {
    padding: var(--space-6);
  }
  .lang-pillars {
    grid-template-columns: 1fr;
  }
  .lang-stats {
    gap: var(--space-6);
  }
}

/* ============================================================
   FOCUS / ACCESSIBILITY
   ============================================================ */

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

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html {
    scroll-behavior: auto;
  }
}