/*
 * NealLonky.com — Design System & Styles
 * A timeless, editorial design for a physician-inventor's legacy
 * ============================================================
 */

/* ============================================
   1. CSS CUSTOM PROPERTIES (Design Tokens)
   ============================================ */

:root {
  /* Color Palette */
  --color-navy: #0B1F3A;
  --color-navy-light: #132B4D;
  --color-teal: #0F7C82;
  --color-teal-dark: #0A5C61;
  --color-teal-light: #E8F4F5;
  --color-gold: #C8A24A;
  --color-gold-light: #D4B86A;
  --color-gold-muted: #F5EDD8;
  --color-ivory: #F7F4EE;
  --color-ivory-dark: #EDE8DF;
  --color-charcoal: #1B1F24;
  --color-slate: #55606D;
  --color-slate-light: #7A8694;
  --color-mist: #E6EDF2;
  --color-white: #FFFFFF;

  /* Typography Scale (Major Third - 1.25) */
  --font-size-xs: 0.75rem;     /* 12px */
  --font-size-sm: 0.875rem;    /* 14px */
  --font-size-base: 1rem;      /* 16px */
  --font-size-md: 1.125rem;    /* 18px */
  --font-size-lg: 1.25rem;     /* 20px */
  --font-size-xl: 1.5rem;      /* 24px */
  --font-size-2xl: 1.875rem;   /* 30px */
  --font-size-3xl: 2.25rem;    /* 36px */
  --font-size-4xl: 3rem;       /* 48px */
  --font-size-5xl: 3.75rem;    /* 60px */
  --font-size-6xl: 4.5rem;     /* 72px */

  /* Font Families */
  --font-display: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;

  /* Font Weights */
  --weight-normal: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;

  /* Line Heights */
  --leading-tight: 1.15;
  --leading-snug: 1.3;
  --leading-normal: 1.5;
  --leading-relaxed: 1.65;
  --leading-loose: 1.8;

  /* Letter Spacing */
  --tracking-tight: -0.025em;
  --tracking-normal: 0;
  --tracking-wide: 0.025em;
  --tracking-wider: 0.05em;
  --tracking-widest: 0.1em;

  /* Spacing Scale */
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.25rem;   /* 20px */
  --space-6: 1.5rem;    /* 24px */
  --space-8: 2rem;      /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */
  --space-20: 5rem;     /* 80px */
  --space-24: 6rem;     /* 96px */
  --space-32: 8rem;     /* 128px */

  /* Layout */
  --max-width: 1200px;
  --max-width-narrow: 800px;
  --max-width-wide: 1400px;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(11, 31, 58, 0.05);
  --shadow-md: 0 4px 12px rgba(11, 31, 58, 0.08);
  --shadow-lg: 0 8px 24px rgba(11, 31, 58, 0.12);
  --shadow-xl: 0 16px 48px rgba(11, 31, 58, 0.16);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Z-Index Scale */
  --z-base: 0;
  --z-above: 10;
  --z-dropdown: 100;
  --z-sticky: 500;
  --z-modal: 1000;
  --z-overlay: 2000;
}


/* ============================================
   2. CSS RESET & BASE STYLES
   ============================================ */

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

* {
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  font-weight: var(--weight-normal);
  line-height: var(--leading-relaxed);
  color: var(--color-charcoal);
  background-color: var(--color-ivory);
  min-height: 100vh;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

p,
h1,
h2,
h3,
h4,
h5,
h6 {
  overflow-wrap: break-word;
}

a {
  color: var(--color-teal);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-teal-dark);
}

ul,
ol {
  list-style: none;
}


/* ============================================
   3. TYPOGRAPHY
   ============================================ */

/* Display / Hero Text */
.display-name {
  font-family: var(--font-display);
  font-size: clamp(var(--font-size-4xl), 8vw, var(--font-size-6xl));
  font-weight: var(--weight-medium);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--color-navy);
}

.display-tagline {
  font-family: var(--font-display);
  font-size: clamp(var(--font-size-lg), 3vw, var(--font-size-2xl));
  font-weight: var(--weight-normal);
  font-style: italic;
  line-height: var(--leading-snug);
  color: var(--color-slate);
}

/* Headings */
h1, .h1 {
  font-family: var(--font-display);
  font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-4xl));
  font-weight: var(--weight-semibold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--color-navy);
}

h2, .h2 {
  font-family: var(--font-display);
  font-size: clamp(var(--font-size-2xl), 4vw, var(--font-size-3xl));
  font-weight: var(--weight-medium);
  line-height: var(--leading-snug);
  color: var(--color-navy);
}

h3, .h3 {
  font-family: var(--font-body);
  font-size: var(--font-size-xl);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-snug);
  color: var(--color-charcoal);
}

h4, .h4 {
  font-family: var(--font-body);
  font-size: var(--font-size-lg);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-snug);
  color: var(--color-charcoal);
}

/* Body Text */
.text-lg {
  font-size: var(--font-size-lg);
  line-height: var(--leading-relaxed);
}

.text-sm {
  font-size: var(--font-size-sm);
  line-height: var(--leading-normal);
}

.text-xs {
  font-size: var(--font-size-xs);
  line-height: var(--leading-normal);
}

/* Specialty Text */
.text-label {
  font-family: var(--font-body);
  font-size: var(--font-size-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-slate);
}

.text-mono {
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
}

/* Colors */
.text-navy { color: var(--color-navy); }
.text-teal { color: var(--color-teal); }
.text-gold { color: var(--color-gold); }
.text-slate { color: var(--color-slate); }
.text-white { color: var(--color-white); }


/* ============================================
   4. LAYOUT UTILITIES
   ============================================ */

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

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

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

.section {
  padding-block: var(--space-16);
}

.section-sm {
  padding-block: var(--space-10);
}

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

/* Flexbox */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* Grid */
.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }


/* ============================================
   5. COMPONENTS
   ============================================ */

/* ----- Buttons ----- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--font-size-sm);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-base);
}

.btn-primary {
  background-color: var(--color-navy);
  color: var(--color-white);
  border-color: var(--color-navy);
}

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

.btn-secondary {
  background-color: transparent;
  color: var(--color-navy);
  border-color: var(--color-navy);
}

.btn-secondary:hover {
  background-color: var(--color-navy);
  color: var(--color-white);
}

.btn-teal {
  background-color: var(--color-teal);
  color: var(--color-white);
  border-color: var(--color-teal);
}

.btn-teal:hover {
  background-color: var(--color-teal-dark);
  border-color: var(--color-teal-dark);
  color: var(--color-white);
}

.btn-gold {
  background-color: var(--color-gold);
  color: var(--color-navy);
  border-color: var(--color-gold);
}

.btn-gold:hover {
  background-color: var(--color-gold-light);
  border-color: var(--color-gold-light);
  color: var(--color-navy);
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-xs);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-base);
}


/* ----- Cards ----- */
.card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-body {
  padding: var(--space-6);
}

.card-title {
  font-family: var(--font-body);
  font-size: var(--font-size-lg);
  font-weight: var(--weight-semibold);
  color: var(--color-charcoal);
  margin-bottom: var(--space-2);
}

.card-text {
  font-size: var(--font-size-sm);
  color: var(--color-slate);
  line-height: var(--leading-relaxed);
}

.card-meta {
  font-size: var(--font-size-xs);
  color: var(--color-slate-light);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}


/* ----- Badge / Chip ----- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  border-radius: var(--radius-full);
}

.badge-navy {
  background-color: var(--color-navy);
  color: var(--color-white);
}

.badge-teal {
  background-color: var(--color-teal-light);
  color: var(--color-teal-dark);
}

.badge-gold {
  background-color: var(--color-gold-muted);
  color: var(--color-gold);
}


/* ----- Divider ----- */
.divider {
  height: 1px;
  background: linear-gradient(
    to right,
    transparent,
    var(--color-mist),
    var(--color-mist),
    transparent
  );
  margin-block: var(--space-8);
}

.divider-gold {
  height: 3px;
  width: 60px;
  background-color: var(--color-gold);
  margin-block: var(--space-6);
}


/* ============================================
   6. HEADER & NAVIGATION
   ============================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background-color: rgba(247, 244, 238, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-mist);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.site-logo {
  font-family: var(--font-display);
  font-size: var(--font-size-xl);
  font-weight: var(--weight-semibold);
  color: var(--color-navy);
  text-decoration: none;
  letter-spacing: var(--tracking-tight);
}

.site-logo:hover {
  color: var(--color-teal);
}

/* Primary Navigation */
.nav-primary {
  display: none;
}

.nav-primary ul {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-primary a {
  display: block;
  padding: var(--space-2) var(--space-3);
  font-size: var(--font-size-sm);
  font-weight: var(--weight-medium);
  color: var(--color-charcoal);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-primary a:hover,
.nav-primary a.active {
  color: var(--color-teal);
  background-color: var(--color-teal-light);
}

/* Utility Navigation */
.nav-utility {
  display: none;
}

.nav-utility ul {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav-utility a {
  font-size: var(--font-size-xs);
  font-weight: var(--weight-medium);
  color: var(--color-slate);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

.nav-utility a:hover {
  color: var(--color-teal);
}

.nav-utility .icon-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
}

.nav-utility .icon-link svg {
  width: 18px;
  height: 18px;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--color-navy);
}

.menu-toggle svg {
  width: 24px;
  height: 24px;
}

/* Mobile Navigation */
.nav-mobile {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  background-color: var(--color-ivory);
  padding: var(--space-6);
  transform: translateX(100%);
  transition: transform var(--transition-base);
  overflow-y: auto;
}

.nav-mobile.is-open {
  transform: translateX(0);
}

.nav-mobile-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-8);
}

.nav-mobile ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.nav-mobile a {
  display: block;
  padding: var(--space-4);
  font-size: var(--font-size-lg);
  font-weight: var(--weight-medium);
  color: var(--color-charcoal);
  border-radius: var(--radius-md);
}

.nav-mobile a:hover,
.nav-mobile a.active {
  color: var(--color-teal);
  background-color: var(--color-teal-light);
}

.nav-mobile-utility {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-mist);
}

.nav-mobile-utility a {
  font-size: var(--font-size-sm);
  color: var(--color-slate);
}


/* ============================================
   7. HERO SECTION
   ============================================ */

.hero {
  position: relative;
  padding-block: var(--space-12) var(--space-16);
  background: linear-gradient(
    135deg,
    var(--color-ivory) 0%,
    var(--color-ivory-dark) 50%,
    var(--color-mist) 100%
  );
}

.hero-inner {
  display: grid;
  gap: var(--space-10);
  align-items: center;
}

.hero-content {
  text-align: center;
}

.hero-credentials {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.hero-name {
  margin-bottom: var(--space-3);
}

.hero-suffix {
  font-family: var(--font-body);
  font-size: clamp(var(--font-size-lg), 3vw, var(--font-size-2xl));
  font-weight: var(--weight-normal);
  color: var(--color-teal);
}

.hero-tagline {
  max-width: 600px;
  margin-inline: auto;
  margin-bottom: var(--space-8);
}

.hero-ctas {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  justify-content: center;
}

/* Hero Portrait */
.hero-portrait {
  position: relative;
  max-width: 400px;
  margin-inline: auto;
}

.hero-portrait-frame {
  position: relative;
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--color-mist);
  box-shadow: var(--shadow-xl);
}

.hero-portrait-frame::before {
  content: '';
  position: absolute;
  inset: 0;
  border: 3px solid var(--color-gold);
  border-radius: var(--radius-lg);
  opacity: 0.6;
  pointer-events: none;
  z-index: 1;
}

.hero-portrait-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Portrait Placeholder */
.portrait-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(
    145deg,
    var(--color-navy) 0%,
    var(--color-navy-light) 100%
  );
  color: var(--color-white);
}

.portrait-placeholder-icon {
  width: 80px;
  height: 80px;
  margin-bottom: var(--space-4);
  opacity: 0.5;
}

.portrait-placeholder-text {
  font-size: var(--font-size-sm);
  opacity: 0.6;
  text-align: center;
  padding-inline: var(--space-6);
}

/* Accent decoration */
.hero-accent {
  position: absolute;
  bottom: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 4px;
  background: linear-gradient(
    to right,
    var(--color-teal),
    var(--color-gold)
  );
  border-radius: var(--radius-full);
}


/* ============================================
   8. PROOF STRIP
   ============================================ */

.proof-strip {
  background-color: var(--color-navy);
  color: var(--color-white);
  padding-block: var(--space-6);
  overflow: hidden;
}

.proof-strip-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-6) var(--space-8);
}

.proof-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  min-width: 140px;
}

.proof-icon {
  width: 32px;
  height: 32px;
  margin-bottom: var(--space-2);
  opacity: 0.7;
}

.proof-text {
  font-size: var(--font-size-sm);
  font-weight: var(--weight-medium);
  line-height: var(--leading-snug);
}

.proof-year {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--color-gold);
  margin-top: var(--space-1);
}


/* ============================================
   9. SECTION HEADERS
   ============================================ */

.section-header {
  text-align: center;
  margin-bottom: var(--space-10);
}

.section-label {
  margin-bottom: var(--space-3);
}

.section-title {
  margin-bottom: var(--space-4);
}

.section-subtitle {
  max-width: 640px;
  margin-inline: auto;
  font-size: var(--font-size-md);
  color: var(--color-slate);
}

.section-header .divider-gold {
  margin-inline: auto;
}


/* ============================================
   10. INVENTION CARDS
   ============================================ */

.inventions-grid {
  display: grid;
  gap: var(--space-6);
}

.invention-card {
  display: flex;
  flex-direction: column;
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.invention-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.invention-card-image {
  position: relative;
  aspect-ratio: 16 / 10;
  background: linear-gradient(
    135deg,
    var(--color-teal-light) 0%,
    var(--color-mist) 100%
  );
  overflow: hidden;
}

.invention-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.invention-card-badge {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
}

.invention-card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: var(--space-5);
}

.invention-card-title {
  font-family: var(--font-display);
  font-size: var(--font-size-xl);
  font-weight: var(--weight-semibold);
  color: var(--color-navy);
  margin-bottom: var(--space-2);
}

.invention-card-text {
  flex: 1;
  font-size: var(--font-size-sm);
  color: var(--color-slate);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-4);
}

.invention-card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-teal);
}

.invention-card-link svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.invention-card:hover .invention-card-link svg {
  transform: translateX(4px);
}


/* ============================================
   11. PRESS & AWARDS
   ============================================ */

.press-section {
  background-color: var(--color-white);
}

.awards-highlight {
  background: linear-gradient(
    135deg,
    var(--color-gold-muted) 0%,
    var(--color-ivory) 100%
  );
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  margin-bottom: var(--space-10);
  text-align: center;
}

.awards-highlight-icon {
  width: 48px;
  height: 48px;
  margin-inline: auto;
  margin-bottom: var(--space-4);
  color: var(--color-gold);
}

.awards-highlight-title {
  font-family: var(--font-display);
  font-size: var(--font-size-2xl);
  color: var(--color-navy);
  margin-bottom: var(--space-2);
}

.awards-highlight-text {
  color: var(--color-slate);
  max-width: 480px;
  margin-inline: auto;
}

/* Logo Grid */
.logo-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.logo-item {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 80px;
  padding: var(--space-4);
  background-color: var(--color-ivory);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-mist);
  transition: border-color var(--transition-fast);
}

.logo-item:hover {
  border-color: var(--color-teal);
}

.logo-item img {
  max-height: 40px;
  max-width: 100%;
  opacity: 0.8;
  filter: grayscale(100%);
  transition: all var(--transition-base);
}

.logo-item:hover img {
  opacity: 1;
  filter: grayscale(0);
}

/* Logo placeholder text */
.logo-item span {
  font-size: var(--font-size-xs);
  font-weight: var(--weight-semibold);
  color: var(--color-slate-light);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

/* Press Items */
.press-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.press-item {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-4);
  background-color: var(--color-ivory);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  transition: all var(--transition-fast);
}

.press-item:hover {
  border-color: var(--color-teal);
  background-color: var(--color-white);
}

.press-item-date {
  flex-shrink: 0;
  width: 60px;
  font-size: var(--font-size-xs);
  font-weight: var(--weight-semibold);
  color: var(--color-slate-light);
  text-transform: uppercase;
}

.press-item-content {
  flex: 1;
}

.press-item-outlet {
  font-size: var(--font-size-xs);
  font-weight: var(--weight-semibold);
  color: var(--color-teal);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  margin-bottom: var(--space-1);
}

.press-item-title {
  font-weight: var(--weight-medium);
  color: var(--color-charcoal);
}


/* ============================================
   12. TIMELINE
   ============================================ */

.timeline-section {
  background-color: var(--color-ivory-dark);
}

.timeline {
  position: relative;
  padding-left: var(--space-8);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(
    to bottom,
    var(--color-teal),
    var(--color-gold),
    var(--color-navy)
  );
}

.timeline-item {
  position: relative;
  padding-bottom: var(--space-8);
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-marker {
  position: absolute;
  left: calc(-1 * var(--space-8) - 6px);
  top: 4px;
  width: 14px;
  height: 14px;
  background-color: var(--color-white);
  border: 3px solid var(--color-teal);
  border-radius: 50%;
  transition: all var(--transition-fast);
}

.timeline-item:hover .timeline-marker {
  background-color: var(--color-teal);
  transform: scale(1.2);
}

.timeline-year {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  font-weight: var(--weight-bold);
  color: var(--color-teal);
  margin-bottom: var(--space-2);
}

.timeline-title {
  font-weight: var(--weight-semibold);
  color: var(--color-charcoal);
  margin-bottom: var(--space-1);
}

.timeline-text {
  font-size: var(--font-size-sm);
  color: var(--color-slate);
}


/* ============================================
   13. PUBLICATIONS
   ============================================ */

.publications-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.publication-item {
  padding: var(--space-5);
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-teal);
  transition: all var(--transition-fast);
}

.publication-item:hover {
  box-shadow: var(--shadow-md);
}

.publication-title {
  font-weight: var(--weight-semibold);
  color: var(--color-charcoal);
  margin-bottom: var(--space-2);
  line-height: var(--leading-snug);
}

.publication-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
  color: var(--color-slate);
}

.publication-journal {
  font-style: italic;
}

.publication-year {
  font-weight: var(--weight-semibold);
  color: var(--color-teal);
}

.publication-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-3);
}


/* ============================================
   14. CTA SECTION
   ============================================ */

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

.cta-title {
  color: var(--color-white);
  margin-bottom: var(--space-4);
}

.cta-text {
  max-width: 560px;
  margin-inline: auto;
  margin-bottom: var(--space-8);
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--font-size-md);
}

.cta-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  justify-content: center;
}

.cta-section .btn-primary {
  background-color: var(--color-gold);
  border-color: var(--color-gold);
  color: var(--color-navy);
}

.cta-section .btn-primary:hover {
  background-color: var(--color-gold-light);
  border-color: var(--color-gold-light);
}

.cta-section .btn-secondary {
  border-color: rgba(255, 255, 255, 0.4);
  color: var(--color-white);
}

.cta-section .btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: var(--color-white);
}


/* ============================================
   15. FOOTER
   ============================================ */

.site-footer {
  background-color: var(--color-charcoal);
  color: rgba(255, 255, 255, 0.7);
  padding-block: var(--space-12) var(--space-6);
}

.footer-inner {
  display: grid;
  gap: var(--space-8);
}

.footer-brand {
  text-align: center;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: var(--font-size-xl);
  font-weight: var(--weight-semibold);
  color: var(--color-white);
  margin-bottom: var(--space-3);
}

.footer-tagline {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.5);
  font-style: italic;
}

/* Footer Navigation */
.footer-nav {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.footer-nav-group h4 {
  font-size: var(--font-size-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-white);
  margin-bottom: var(--space-4);
}

.footer-nav-group ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-nav-group a {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition-fast);
}

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

/* Footer Social */
.footer-social {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.7);
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  background-color: var(--color-teal);
  color: var(--color-white);
}

.footer-social svg {
  width: 20px;
  height: 20px;
}

/* Footer Bottom */
.footer-bottom {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2) var(--space-4);
  margin-bottom: var(--space-3);
}

.footer-legal a {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.5);
}

.footer-legal a:hover {
  color: var(--color-white);
}

.footer-copyright {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.4);
}


/* ============================================
   16. UTILITY CLASSES
   ============================================ */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-auto { margin-top: auto; }
.mb-0 { margin-bottom: 0; }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }


/* ============================================
   17. RESPONSIVE BREAKPOINTS
   ============================================ */

/* Tablet and up (768px) */
@media (min-width: 48rem) {
  .hero-inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
  }

  .hero-content {
    text-align: left;
  }

  .hero-tagline {
    margin-inline: 0;
  }

  .hero-ctas {
    flex-direction: row;
    justify-content: flex-start;
  }

  .hero-portrait {
    order: 1;
  }

  .hero-content {
    order: 0;
  }

  .inventions-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .logo-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .cta-buttons {
    flex-direction: row;
  }

  .footer-inner {
    grid-template-columns: 1fr 2fr;
    text-align: left;
  }

  .footer-brand {
    text-align: left;
  }

  .footer-nav {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer-social {
    justify-content: flex-start;
  }
}

/* Desktop (1024px) */
@media (min-width: 64rem) {
  .nav-primary {
    display: block;
  }

  .nav-utility {
    display: block;
  }

  .menu-toggle {
    display: none;
  }

  .hero {
    padding-block: var(--space-16) var(--space-20);
  }

  .hero-inner {
    gap: var(--space-16);
  }

  .hero-portrait {
    max-width: 440px;
  }

  .inventions-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .logo-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .footer-nav {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Large Desktop (1280px) */
@media (min-width: 80rem) {
  .proof-strip-inner {
    gap: var(--space-12);
  }
}


/* ============================================
   18. PRINT STYLES
   ============================================ */

@media print {
  .site-header,
  .nav-mobile,
  .cta-section,
  .footer-social {
    display: none;
  }

  body {
    font-size: 12pt;
    color: #000;
    background: #fff;
  }

  a {
    color: #000;
    text-decoration: underline;
  }
}