/* ============================================
   DESIGN SYSTEM — Pythagorean Dark Theme
   ============================================ */

/* --- Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=EB+Garamond:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* --- Custom Properties --- */
:root {
  /* Colors */
  --bg-primary: #0a0e1a;
  --bg-secondary: #111827;
  --bg-tertiary: #1a2236;
  --bg-card: #141b2d;
  --bg-card-hover: #1c2541;
  --bg-overlay: rgba(10, 14, 26, 0.85);

  --accent-gold: #c9a84c;
  --accent-gold-light: #e0c872;
  --accent-gold-dim: rgba(201, 168, 76, 0.15);
  --accent-marble: #e8e0d4;
  --accent-blue: #4a6fa5;
  --accent-blue-light: #6b8fc5;
  --accent-green: #5a8a6a;
  --accent-red: #a85454;

  --text-primary: #f0ece4;
  --text-secondary: #c4bfb5;
  --text-muted: #8b8a85;
  --text-heading: #f5f0e8;

  --border-subtle: rgba(201, 168, 76, 0.12);
  --border-medium: rgba(201, 168, 76, 0.25);
  --border-glow: rgba(201, 168, 76, 0.4);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
  --shadow-gold: 0 0 30px rgba(201, 168, 76, 0.1);

  /* Typography */
  --font-serif: 'EB Garamond', Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;

  /* Spacing (based on golden ratio ~1.618) */
  --space-xs: 0.382rem;
  --space-sm: 0.618rem;
  --space-md: 1rem;
  --space-lg: 1.618rem;
  --space-xl: 2.618rem;
  --space-2xl: 4.236rem;
  --space-3xl: 6.854rem;

  /* Layout */
  --max-width: 1200px;
  --max-width-narrow: 800px;
  --nav-height: 72px;
  --border-radius: 12px;
  --border-radius-sm: 8px;
  --border-radius-lg: 20px;

  /* Transitions */
  --ease-out: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition-fast: 200ms var(--ease-out);
  --transition-base: 350ms var(--ease-out);
  --transition-slow: 600ms var(--ease-out);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

::selection {
  background: var(--accent-gold);
  color: var(--bg-primary);
}

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

a:hover {
  color: var(--accent-gold-light);
}

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

ul, ol {
  list-style: none;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  color: var(--text-heading);
  line-height: 1.25;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.4rem, 5vw, 4rem); font-weight: 600; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 600; }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); font-weight: 500; }
h4 { font-size: 1.25rem; font-weight: 500; }

p {
  color: var(--text-secondary);
  max-width: 68ch;
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-gold);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.section-label::before {
  content: '';
  width: 28px;
  height: 1px;
  background: var(--accent-gold);
}

/* --- Layout --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

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

section {
  padding: var(--space-3xl) 0;
  position: relative;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.nav.scrolled {
  background: var(--bg-overlay);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  box-shadow: 0 1px 0 var(--border-subtle);
}

.nav__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text-heading);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav__logo-symbol {
  font-size: 1.6rem;
  color: var(--accent-gold);
  font-weight: 400;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav__link {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: var(--space-xs) 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--accent-gold);
  transition: width var(--transition-base);
}

.nav__link:hover,
.nav__link.active {
  color: var(--text-primary);
}

.nav__link:hover::after,
.nav__link.active::after {
  width: 100%;
}

/* Mobile menu toggle */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: var(--space-xs);
}

.nav__toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition-fast);
  border-radius: 1px;
}

.nav__toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.nav__toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav__toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--nav-height);
}

.hero__canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero__gradient {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 30%;
  background: linear-gradient(to top, var(--bg-primary), transparent);
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
}

.hero__greeting {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--accent-gold);
  margin-bottom: var(--space-md);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s var(--ease-out) 0.3s forwards;
}

.hero__name {
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s var(--ease-out) 0.5s forwards;
}

.hero__name .highlight {
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__tagline {
  font-family: var(--font-serif);
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  color: var(--text-secondary);
  max-width: 550px;
  margin-bottom: var(--space-xl);
  font-style: italic;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s var(--ease-out) 0.7s forwards;
}

.hero__cta-group {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s var(--ease-out) 0.9s forwards;
}

.hero__scroll-hint {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: var(--text-muted);
  font-size: 0.75rem;
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  animation: float 3s ease-in-out infinite;
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--accent-gold), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.8rem 1.8rem;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  border: none;
  transition: all var(--transition-base);
  text-decoration: none;
}

.btn--primary {
  background: linear-gradient(135deg, var(--accent-gold), #b8963f);
  color: var(--bg-primary);
  box-shadow: 0 4px 15px rgba(201, 168, 76, 0.3);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(201, 168, 76, 0.45);
  color: var(--bg-primary);
}

.btn--outline {
  background: transparent;
  color: var(--accent-gold);
  border: 1.5px solid var(--border-medium);
}

.btn--outline:hover {
  border-color: var(--accent-gold);
  background: var(--accent-gold-dim);
  color: var(--accent-gold-light);
  transform: translateY(-2px);
}

/* --- About --- */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.about__text p {
  margin-bottom: var(--space-md);
}

.about__quote {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-style: italic;
  color: var(--accent-gold);
  padding-left: var(--space-lg);
  border-left: 2px solid var(--accent-gold);
  margin-top: var(--space-xl);
}

.about__quote cite {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  font-style: normal;
  margin-top: var(--space-sm);
}

.about__visual {
  display: flex;
  justify-content: center;
}

.about__photos {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  width: 100%;
}

.about__photo {
  margin: 0;
  border-radius: var(--border-radius);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
}

.about__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-base);
}

.about__photo:hover img {
  transform: scale(1.03);
}

.about__photo--main {
  grid-row: 1 / 3;
}

.about__photo--secondary {
  grid-row: 1 / 3;
}

.about__photos--single {
  grid-template-columns: 1fr;
  max-width: 400px;
  margin: 0 auto;
}

.about__photos--single .about__photo {
  max-height: 450px;
}

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

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius);
  padding: var(--space-xl);
  text-align: center;
  transition: all var(--transition-base);
}

.stat-card:hover {
  border-color: var(--border-medium);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-gold);
}

.stat-card__icon {
  font-size: 2rem;
  margin-bottom: var(--space-sm);
}

.stat-card__value {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-gold);
}

.stat-card__label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: var(--space-xs);
}

/* --- Expertise --- */
.expertise__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.expertise-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius);
  padding: var(--space-xl);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-base);
}

.expertise-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-gold), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.expertise-card:hover {
  border-color: var(--border-medium);
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg), var(--shadow-gold);
}

.expertise-card:hover::before {
  opacity: 1;
}

.expertise-card__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--border-radius-sm);
  background: var(--accent-gold-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-lg);
}

.expertise-card__title {
  margin-bottom: var(--space-sm);
}

.expertise-card__desc {
  font-size: 0.92rem;
  margin-bottom: var(--space-lg);
}

.expertise-card__figure {
  margin: 0 0 var(--space-lg) 0;
  border-radius: var(--border-radius-sm);
  overflow: hidden;
}

.expertise-card__img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  object-position: center 20%;
  display: block;
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--border-subtle);
}

.expertise-card__caption {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: var(--space-sm);
}

.expertise-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.3rem 0.7rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: 100px;
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.tag:hover {
  color: var(--accent-gold);
  border-color: var(--border-medium);
}

/* --- Interests --- */
.interests__grid {
  display: grid;
  grid-template-columns: 1.618fr 1fr;
  gap: var(--space-xl);
  margin-top: var(--space-xl);
}

.interest-highlight {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-lg);
  padding: var(--space-2xl);
  position: relative;
  overflow: hidden;
}

.interest-highlight::after {
  content: '';
  position: absolute;
  bottom: -40px;
  right: -40px;
  width: 200px;
  height: 200px;
  border: 1px solid var(--border-subtle);
  border-radius: 50%;
  opacity: 0.4;
}

.interest-highlight__icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-lg);
}

.interest-highlight__title {
  margin-bottom: var(--space-md);
}

.interest-highlight__text {
  font-size: 0.95rem;
  line-height: 1.8;
}

.interest-highlight__text em {
  font-family: var(--font-serif);
  color: var(--accent-gold);
  font-style: italic;
}

.interest-highlight__figure {
  margin: var(--space-lg) 0 0 0;
  border-radius: var(--border-radius);
  overflow: hidden;
}

.interest-highlight__img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  object-position: center 30%;
  display: block;
  border-radius: var(--border-radius);
  border: 1px solid var(--border-subtle);
}

.interest-highlight__caption {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: var(--space-sm);
}

.interests__sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.interest-mini {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius);
  padding: var(--space-lg);
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
  transition: all var(--transition-base);
}

.interest-mini:hover {
  border-color: var(--border-medium);
  transform: translateX(6px);
}

.interest-mini__icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.interest-mini__title {
  font-size: 1rem;
  margin-bottom: var(--space-xs);
}

.interest-mini__text {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.interest-mini--link {
  text-decoration: none;
  cursor: pointer;
}

.interest-mini--link:hover {
  border-color: var(--accent-gold);
}

.interest-mini--link:hover .interest-mini__title {
  color: var(--accent-gold);
}

/* --- Tools --- */
.tools__header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-lg);
  margin-bottom: var(--space-sm);
}

.tools__mascot {
  margin: 0;
  flex-shrink: 0;
  width: 120px;
  height: 80px;
  border-radius: var(--border-radius-sm);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  opacity: 0.85;
  transition: opacity var(--transition-fast);
}

.tools__mascot:hover {
  opacity: 1;
}

.tools__mascot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.tools__banner {
  margin: var(--space-lg) auto;
  border-radius: var(--border-radius);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  max-width: 333px;
}

.tools__banner img {
  width: 100%;
  height: auto;
  display: block;
}

.tools__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.tool-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius);
  padding: var(--space-xl);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-base);
  text-decoration: none;
  color: inherit;
}

.tool-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-gold), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.tool-card:hover {
  border-color: var(--border-medium);
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg), var(--shadow-gold);
  color: inherit;
}

.tool-card:hover::before {
  opacity: 1;
}

.tool-card__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--border-radius-sm);
  background: var(--accent-gold-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-lg);
}

.tool-card__title {
  margin-bottom: var(--space-sm);
}

.tool-card__desc {
  font-size: 0.92rem;
  margin-bottom: var(--space-lg);
  flex: 1;
}

.tool-card__desc code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--bg-tertiary);
  padding: 0.1em 0.4em;
  border-radius: 3px;
  color: var(--accent-gold-light);
}

.tool-card__cta {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent-gold);
  display: flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--transition-fast);
}

.tool-card:hover .tool-card__cta {
  gap: 10px;
}

.tool-card--meme {
  cursor: default;
}

.tool-card--meme:hover {
  transform: none;
  box-shadow: none;
}

.tool-card__meme-img {
  width: 100%;
  max-width: 280px;
  height: auto;
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--border-subtle);
  margin-bottom: var(--space-sm);
}

.tool-card__cta--disabled {
  color: var(--text-muted);
  opacity: 0.6;
}

/* --- Blog --- */
.blog__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
  gap: var(--space-md);
}

.blog__filters {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
}

.blog__filter {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 0.4rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 100px;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.blog__filter:hover {
  border-color: var(--border-medium);
  color: var(--text-primary);
}

.blog__filter.active {
  background: var(--accent-gold-dim);
  border-color: var(--accent-gold);
  color: var(--accent-gold);
}

.blog__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--space-lg);
}

.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: all var(--transition-base);
  cursor: pointer;
}

.blog-card:hover {
  border-color: var(--border-medium);
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.blog-card__header {
  padding: var(--space-lg) var(--space-lg) 0;
}

.blog-card__category {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-gold);
  margin-bottom: var(--space-sm);
}

.blog-card__title {
  font-size: 1.2rem;
  margin-bottom: var(--space-sm);
  transition: color var(--transition-fast);
}

.blog-card:hover .blog-card__title {
  color: var(--accent-gold-light);
}

.blog-card__excerpt {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  padding: 0 var(--space-lg);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card__footer {
  padding: var(--space-md) var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  border-top: 1px solid var(--border-subtle);
  margin-top: var(--space-md);
}

.blog-card__read-more {
  color: var(--accent-gold);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--transition-fast);
}

.blog-card:hover .blog-card__read-more {
  gap: 8px;
}

/* --- Article View --- */
.article-view {
  display: none;
  padding-top: calc(var(--nav-height) + var(--space-2xl));
  min-height: 100vh;
}

.article-view.active {
  display: block;
}

.article-view__back {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  margin-bottom: var(--space-xl);
  cursor: pointer;
  transition: color var(--transition-fast);
}

.article-view__back:hover {
  color: var(--accent-gold);
}

.article-view__meta {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.article-view__category {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-gold);
  background: var(--accent-gold-dim);
  padding: 0.3rem 0.8rem;
  border-radius: 100px;
}

.article-view__date,
.article-view__reading-time {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
}

.article-view__title {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: var(--space-lg);
  max-width: 20ch;
}

.article-view__divider {
  width: 60px;
  height: 2px;
  background: var(--accent-gold);
  margin-bottom: var(--space-xl);
}

.article-view__body {
  max-width: 68ch;
  font-size: 1.05rem;
  line-height: 1.9;
}

.article-view__body h2 {
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
  font-size: 1.6rem;
}

.article-view__body h3 {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
  font-size: 1.3rem;
}

.article-view__body p {
  margin-bottom: var(--space-lg);
  max-width: 100%;
}

.article-view__body blockquote {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.15rem;
  color: var(--accent-marble);
  padding: var(--space-lg) var(--space-xl);
  border-left: 3px solid var(--accent-gold);
  background: var(--accent-gold-dim);
  border-radius: 0 var(--border-radius-sm) var(--border-radius-sm) 0;
  margin: var(--space-xl) 0;
}

.article-view__body code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--bg-tertiary);
  padding: 0.15em 0.5em;
  border-radius: 4px;
  color: var(--accent-gold-light);
}

.article-view__body pre {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-sm);
  padding: var(--space-lg);
  overflow-x: auto;
  margin: var(--space-xl) 0;
}

.article-view__body pre code {
  background: none;
  padding: 0;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.article-view__body ul,
.article-view__body ol {
  margin: var(--space-md) 0 var(--space-lg) var(--space-xl);
}

.article-view__body li {
  margin-bottom: var(--space-sm);
  color: var(--text-secondary);
}

.article-view__body ul li::before {
  content: '—';
  color: var(--accent-gold);
  margin-right: var(--space-sm);
}

/* --- Contact --- */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  margin-top: var(--space-xl);
}

.contact__info h3 {
  margin-bottom: var(--space-md);
}

.contact__info p {
  margin-bottom: var(--space-xl);
}

.contact__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.contact__link {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  color: var(--text-secondary);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.contact__link:hover {
  color: var(--accent-gold);
  transform: translateX(6px);
}

.contact__link-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius-sm);
  background: var(--accent-gold-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.form-group {
  position: relative;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.9rem 1.2rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-sm);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  outline: none;
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 3px var(--accent-gold-dim);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

/* --- Footer --- */
.footer {
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-xl) 0;
}

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

.footer__text {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.footer__links {
  display: flex;
  gap: var(--space-lg);
}

.footer__link {
  font-size: 0.82rem;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: var(--accent-gold);
}

/* --- Section Divider --- */
.section-divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-subtle), transparent);
  margin: 0 auto;
}

/* --- Scroll Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Stagger delay for children */
.stagger > *:nth-child(1) { transition-delay: 0ms; }
.stagger > *:nth-child(2) { transition-delay: 100ms; }
.stagger > *:nth-child(3) { transition-delay: 200ms; }
.stagger > *:nth-child(4) { transition-delay: 300ms; }
.stagger > *:nth-child(5) { transition-delay: 400ms; }
.stagger > *:nth-child(6) { transition-delay: 500ms; }

/* --- Keyframes --- */
@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-10px); }
}

@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

@keyframes pulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

/* --- Main page wrapper (hides when viewing article) --- */
.main-page {
  transition: opacity 0.3s var(--ease-out);
}

.main-page.hidden {
  display: none;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .expertise__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 60px;
  }

  .container {
    padding: 0 var(--space-lg);
  }

  section {
    padding: var(--space-2xl) 0;
  }

  .nav__links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--bg-overlay);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--space-xl) var(--space-lg);
    gap: var(--space-md);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-base);
    border-bottom: 1px solid var(--border-subtle);
  }

  .nav__links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav__toggle {
    display: flex;
  }

  .hero__name {
    font-size: clamp(2rem, 8vw, 3.5rem);
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .about__photos {
    grid-template-columns: 1fr 1fr;
    max-height: 300px;
  }

  .about__photo--main,
  .about__photo--secondary {
    grid-row: auto;
  }

  .expertise__grid {
    grid-template-columns: 1fr;
  }

  .interests__grid {
    grid-template-columns: 1fr;
  }

  .blog__grid {
    grid-template-columns: 1fr;
  }

  .contact__grid {
    grid-template-columns: 1fr;
  }

  .footer__inner {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }

  .hero__cta-group {
    flex-direction: column;
  }

  .btn {
    justify-content: center;
  }

  .about__stats {
    grid-template-columns: 1fr;
  }
}