:root {
  --bg-0: #050810;
  --bg-1: #0a0e1a;
  --bg-2: #0f1524;
  --bg-card: #121929;
  --bg-card-hover: #162038;
  --cyan: #00d4ff;
  --cyan-dim: #00a8cc;
  --gold: #ffc947;
  --gold-dim: #d4a520;
  --violet: #8b5cf6;
  --green: #10b981;
  --red: #ef4444;
  --text-primary: #e8eaf2;
  --text-secondary: #8896b3;
  --text-muted: #4a5568;
  --border: rgba(0, 212, 255, 0.12);
  --border-gold: rgba(255, 201, 71, 0.18);
  --glow-cyan: 0 0 30px rgba(0, 212, 255, 0.25);
  --glow-gold: 0 0 30px rgba(255, 201, 71, 0.2);
  --radius: 12px;
  --radius-lg: 20px;
  --font-display: 'Times New Roman', Times, serif;
  --font-body: 'Open Sans', sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;
  --font-serif: 'Times New Roman', Times, serif;
  --transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg-0);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.7;
  overflow-x: hidden;
  cursor: default;
  transition: background 0.3s ease, color 0.3s ease;
}

::selection {
  background: rgba(0, 212, 255, 0.25);
  color: #fff;
}

::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg-1);
}

::-webkit-scrollbar-thumb {
  background: var(--cyan-dim);
  border-radius: 3px;
}

nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(1.5rem, 5vw, 4rem);
  height: 64px;
  background: rgba(5, 8, 16, 0.82);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s;
}

.nav-brand {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--cyan);
  text-decoration: none;
  text-transform: uppercase;
}

.nav-right-container {
  display: flex;
  align-items: center;
  gap: 1rem;
  z-index: 110;
}

/* Checkbox hamburger menu */
.nav-toggle {
  display: none;
}

.nav-toggle-label {
  display: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle-label span,
.nav-toggle-label span::before,
.nav-toggle-label span::after {
  display: block;
  background: var(--text-primary);
  height: 2px;
  width: 22px;
  position: relative;
  transition: all 0.3s ease-in-out;
}

.nav-toggle-label span::before,
.nav-toggle-label span::after {
  content: '';
  position: absolute;
}

.nav-toggle-label span::before {
  top: -6px;
}

.nav-toggle-label span::after {
  top: 6px;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-secondary);
  text-decoration: none;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 0.2s;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--cyan);
  transform: scaleX(0);
  transition: transform 0.2s;
}

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

.nav-links a:hover::after {
  transform: scaleX(1);
}

main {
  position: relative;
  z-index: 1;
  padding-top: 64px;
}

.hero {
  min-height: calc(100vh - 64px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4rem clamp(1.5rem, 6vw, 6rem);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 900px;
  height: 900px;
  background: radial-gradient(ellipse, rgba(0, 212, 255, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  color: var(--cyan);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  opacity: 1;
}

.hero-avatar {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  border: 2px solid var(--gold);
  box-shadow: var(--glow-gold), 0 0 0 6px rgba(255, 201, 71, 0.08);
  margin-bottom: 2rem;
  opacity: 1;
  object-fit: cover;
  transition: var(--transition);
}

.hero-avatar:hover {
  transform: scale(1.05) rotate(3deg);
  box-shadow: var(--glow-gold), 0 0 0 10px rgba(255, 201, 71, 0.15);
}

.hero-name {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 8vw, 6.5rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1;
  background: linear-gradient(180deg,
      #fffde0 0%,
      #ffd700 18%,
      #c8920a 40%,
      #f5c400 58%,
      #a06200 78%,
      #1a0d00 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 2px 28px rgba(255, 200, 0, 0.60));
  margin-bottom: 1.2rem;
  opacity: 1;
}

.hero-tagline {
  font-family: var(--font-display);
  font-size: clamp(0.85rem, 2.5vw, 1.15rem);
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  opacity: 1;
}

.hero-roles {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem;
  margin-bottom: 2.5rem;
  opacity: 1;
}

.role-chip {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.35rem 0.9rem;
  border-radius: 100px;
  border: 1px solid;
  transition: var(--transition);
}

.role-chip.cyan {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0, 212, 255, 0.06);
}

.role-chip.gold {
  border-color: var(--gold);
  color: var(--gold);
  background: rgba(255, 201, 71, 0.06);
}

.role-chip.violet {
  border-color: var(--violet);
  color: var(--violet);
  background: rgba(139, 92, 246, 0.06);
}

.role-chip.green {
  border-color: var(--green);
  color: var(--green);
  background: rgba(16, 185, 129, 0.06);
}

.role-chip.red {
  border-color: var(--red);
  color: var(--red);
  background: rgba(239, 68, 68, 0.06);
}

.role-chip:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.hero-bio {
  max-width: 680px;
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 2.5rem;
  opacity: 1;
}

.hero-ctas {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
  opacity: 1;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--cyan);
  color: #000;
  box-shadow: 0 4px 20px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
  background: #fff;
  box-shadow: 0 6px 30px rgba(0, 212, 255, 0.5);
  transform: translateY(-2px) scale(1.03);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-outline:hover {
  border-color: var(--gold);
  color: var(--gold);
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 4px 20px rgba(255, 201, 71, 0.15);
}

.btn-gold {
  background: var(--gold);
  color: #000;
  box-shadow: 0 4px 20px rgba(255, 201, 71, 0.3);
}

.btn-gold:hover {
  background: #ffe080;
  box-shadow: 0 6px 30px rgba(255, 201, 71, 0.5);
  transform: translateY(-2px) scale(1.03);
}

.btn-newsletter {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.25);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.btn-newsletter:hover {
  background: var(--violet);
  color: #ffffff;
  border-color: var(--violet);
  box-shadow: 0 6px 30px rgba(139, 92, 246, 0.4);
  transform: translateY(-2px) scale(1.03);
}

section {
  padding: 6rem clamp(1.5rem, 8vw, 8rem);
  position: relative;
}

.section-header {
  margin-bottom: 3.5rem;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--cyan);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.8rem;
}

.section-label::before {
  content: '';
  display: block;
  width: 32px;
  height: 1px;
  background: var(--cyan);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.15;
}

.section-title .accent-cyan {
  color: var(--cyan);
}

.section-title .accent-gold {
  color: var(--gold);
}

.section-sub {
  margin-top: 0.75rem;
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 600px;
}

.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), var(--border-gold), var(--border), transparent);
  margin: 0 clamp(1.5rem, 8vw, 8rem);
}

.roles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.role-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.role-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
}

.role-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(0, 212, 255, 0.25);
  transform: translateY(-6px) scale(1.02);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), var(--glow-cyan);
}

.role-card:hover::before {
  transform: scaleX(1);
}

.role-card-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
  display: block;
  transition: var(--transition);
}

.role-card:hover .role-card-icon {
  transform: scale(1.15) rotate(-5deg);
}

.role-card-title {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 0.6rem;
}

.role-card-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
}

.tech-category {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: var(--transition);
}

.tech-category:hover {
  border-color: rgba(255, 201, 71, 0.3);
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2), var(--glow-gold);
}

.tech-cat-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tech-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.3rem 0.7rem;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
  letter-spacing: 0.04em;
  transition: var(--transition);
}

.tech-tag:hover {
  background: rgba(0, 212, 255, 0.08);
  border-color: rgba(0, 212, 255, 0.3);
  color: var(--cyan);
  transform: scale(1.05);
}

.tech-tag.highlight {
  background: rgba(0, 212, 255, 0.08);
  border-color: rgba(0, 212, 255, 0.25);
  color: var(--cyan);
}

.writing-columns {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 3rem;
}

.writing-columns-wide {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 3rem;
  margin-top: 3rem;
}

.writing-category-title {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold);
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-gold);
  margin-bottom: 1.5rem;
}

.article-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.article-card {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  text-decoration: none;
  color: inherit;
  padding: 1rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: var(--transition);
}

.article-card:hover {
  background: var(--bg-card);
  border-color: var(--border);
  transform: translateX(6px) scale(1.01);
}

.article-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  flex-shrink: 0;
  margin-top: 0.2rem;
  width: 1.5rem;
  text-align: right;
}

.article-title {
  font-size: 0.9rem;
  color: var(--text-primary);
  line-height: 1.5;
  transition: color 0.2s;
}

.article-card:hover .article-title {
  color: var(--cyan);
}

.book-showcase {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 3rem;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-lg);
  padding: 3rem;
  box-shadow: var(--glow-gold);
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}

.book-showcase:hover {
  transform: translateY(-4px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3), var(--glow-gold);
}

.book-showcase::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(255, 201, 71, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.book-cover-img {
  width: 240px;
  max-width: 100%;
  aspect-ratio: 2/3;
  border-radius: 8px;
  border: 1px solid rgba(255, 201, 71, 0.3);
  box-shadow: 8px 12px 40px rgba(0, 0, 0, 0.6), var(--glow-gold);
  flex-shrink: 0;
  object-fit: cover;
  display: block;
  transition: var(--transition);
}

.book-showcase:hover .book-cover-img {
  transform: scale(1.03) rotate(-2deg);
}

.book-badge {
  position: absolute;
  top: -8px;
  right: -8px;
  background: var(--gold);
  color: #000;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.3rem 0.5rem;
  border-radius: 6px;
  transform: rotate(12deg);
  box-shadow: 0 4px 12px rgba(255, 201, 71, 0.4);
}

.book-info-tag {
  display: inline-flex;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.3rem 0.8rem;
  background: rgba(255, 201, 71, 0.08);
  border: 1px solid var(--border-gold);
  color: var(--gold);
  border-radius: 100px;
  margin-bottom: 1rem;
}

.book-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 900;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 0.5rem;
}

.book-subtitle {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1rem;
  color: var(--gold);
  margin-bottom: 1.25rem;
}

.book-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 1.5rem;
  max-width: 500px;
}

.book-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  margin-top: 1rem;
}

.stats-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 0;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 0;
}

.stat-item {
  text-align: center;
  padding: 2.5rem 1rem;
  border-right: 1px solid var(--border);
  position: relative;
  transition: var(--transition);
}

.stat-item:hover {
  background: var(--bg-card-hover);
}

.stat-item:last-child {
  border-right: none;
}

.stat-num {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  background: linear-gradient(135deg, var(--cyan), var(--gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 0.4rem;
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.collab-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.collab-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  transition: var(--transition);
}

.collab-item:hover {
  border-color: rgba(0, 212, 255, 0.25);
  background: var(--bg-card-hover);
  transform: translateY(-3px) scale(1.02);
}

.collab-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
}

.collab-text {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.collab-text strong {
  color: var(--text-primary);
  display: block;
  margin-bottom: 0.2rem;
  font-size: 0.9rem;
}

.work-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.work-link {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  text-decoration: none;
  padding: 1.25rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  min-width: 200px;
  transition: var(--transition);
}

.work-link:hover {
  background: var(--bg-card-hover);
  border-color: var(--gold);
  transform: translateY(-5px) scale(1.03);
  box-shadow: var(--glow-gold);
}

.work-link-emoji {
  font-size: 1.5rem;
}

.work-link-name {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--gold);
  text-transform: uppercase;
}

.work-link-url {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

/* ==========================================================================
   CONTACT FORM SECTION
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3.5rem;
  align-items: stretch;
}

.contact-info {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 2rem;
}

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.contact-card.glow-gold {
  border-color: var(--border-gold);
  box-shadow: var(--glow-gold);
}

.contact-card.glow-cyan {
  border-color: var(--border);
  box-shadow: var(--glow-cyan);
}

.contact-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--gold));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
}

.contact-card:hover::before {
  transform: scaleX(1);
}

.contact-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-4px);
}

.contact-method-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.contact-method-item {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.contact-method-icon {
  font-size: 1.8rem;
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.contact-card:hover .contact-method-icon {
  background: var(--cyan);
  color: #000;
  transform: scale(1.05) rotate(5deg);
}

.contact-method-text {
  display: flex;
  flex-direction: column;
}

.contact-method-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.contact-method-val {
  font-size: 1.05rem;
  color: var(--text-primary);
  font-weight: 600;
  text-decoration: none;
  transition: color 0.2s;
}

.contact-method-val:hover {
  color: var(--cyan);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.form-input,
.form-textarea {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.8rem 1rem;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
  width: 100%;
}

.form-textarea {
  resize: vertical;
  min-height: 160px;
}

select.form-input {
  appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg fill='%238896b3' height='24' viewBox='0 0 24 24' width='24' xmlns='http://www.w3.org/2000/svg'><path d='M7 10l5 5 5-5z'/><path d='M0 0h24v24H0z' fill='none'/></svg>");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

select.form-input option {
  background: var(--bg-card);
  color: var(--text-primary);
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--cyan);
  background: var(--bg-card);
  box-shadow: 0 0 12px rgba(0, 212, 255, 0.15);
}

.form-status {
  padding: 0.75rem 1rem;
  border-radius: 8px;
  font-size: 0.88rem;
  display: none;
  font-family: var(--font-mono);
}

.form-status.success {
  background: rgba(16, 185, 129, 0.1);
  color: var(--green);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.form-status.error {
  background: rgba(239, 68, 68, 0.1);
  color: var(--red);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

footer {
  background: var(--bg-1);
  border-top: 1px solid var(--border);
  padding: 5rem clamp(1.5rem, 8vw, 8rem) 3rem;
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand-name {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--cyan), var(--gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
}

.footer-brand-tagline {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.footer-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 1.25rem;
}

.social-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.6rem;
}

.social-link {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 0.9rem;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 8px;
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
  transition: var(--transition);
}

.social-link:hover {
  background: rgba(0, 212, 255, 0.06);
  border-color: rgba(0, 212, 255, 0.2);
  color: var(--cyan);
  transform: translateY(-3px) scale(1.05);
}

.social-icon {
  font-size: 1rem;
  flex-shrink: 0;
}

.newsletter-card {
  margin-top: 2.5rem;
  padding: 1.5rem 2rem;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.04), rgba(255, 201, 71, 0.04));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.newsletter-info {
  flex: 1;
}

.newsletter-name {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 0.3rem;
}

.newsletter-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.footer-divider {
  height: 1px;
  background: var(--border);
  margin: 2.5rem 0;
}

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

.collab-sub-header {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 2.5rem;
  margin-bottom: 1.25rem;
}

.collab-sub-header::before,
.collab-sub-header::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-gold));
}

.collab-sub-header::after {
  background: linear-gradient(90deg, var(--border-gold), transparent);
}

.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

.footer-location {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.reveal {
  opacity: 1;
  transform: none;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

.back-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 50;
  width: 44px;
  height: 44px;
  background: rgba(0, 212, 255, 0.12);
  border: 1px solid rgba(0, 212, 255, 0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  cursor: pointer;
  text-decoration: none;
  color: var(--cyan);
  transition: var(--transition);
  opacity: 0;
  pointer-events: none;
}

.back-top.visible {
  opacity: 1;
  pointer-events: auto;
}

.back-top:hover {
  background: var(--cyan);
  color: #000;
  transform: scale(1.1) translateY(-2px);
}

/* MEDIA QUERIES FOR FULL MOBILE/TABLET RESPONSIVENESS */

@media(max-width: 900px) {
  .writing-columns,
  .writing-columns-wide {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media(max-width: 768px) {
  section {
    padding: 3.5rem 1.25rem;
  }

  .divider {
    margin: 0 1.25rem;
  }

  .hero {
    min-height: calc(100vh - 64px);
    padding: 3rem 1.25rem;
  }

  /* Hamburger layout */
  .nav-toggle-label {
    display: block;
    z-index: 110;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    width: 100vw;
    height: 100dvh;
    background: rgba(5, 8, 16, 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.25rem;
    padding: 5rem 2rem 2rem;
    overflow-y: auto;
    z-index: 105;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
  }

  .nav-links a {
    font-size: 1.25rem;
    padding: 0.5rem 1rem;
    display: inline-block;
  }

  .nav-toggle:checked ~ .nav-links {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-toggle:checked ~ .nav-right-container .nav-toggle-label span {
    background: transparent;
  }

  .nav-toggle:checked ~ .nav-right-container .nav-toggle-label span::before {
    transform: rotate(45deg);
    top: 0;
  }

  .nav-toggle:checked ~ .nav-right-container .nav-toggle-label span::after {
    transform: rotate(-45deg);
    top: 0;
  }

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

  .stat-item {
    border-bottom: 1px solid var(--border);
  }

  .stat-item:nth-child(2n) {
    border-right: none;
  }

  .stat-item:nth-child(3),
  .stat-item:nth-child(4) {
    border-bottom: none;
  }
}

@media(max-width: 700px) {
  .book-showcase {
    grid-template-columns: 1fr;
    text-align: center;
    padding: 2.5rem 1.5rem;
    justify-items: center;
  }

  .book-desc {
    margin: 0 auto 1.5rem;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media(max-width: 600px) {
  body {
    font-size: 16px;
  }

  .hero-avatar {
    width: 120px;
    height: 120px;
  }

  .newsletter-card {
    padding: 1.25rem 1rem;
    gap: 1rem;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .contact-card {
    padding: 1.5rem;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}

/* Tier Cards Grid */
.tier-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.tier-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.tier-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-6px);
  border-color: rgba(0, 212, 255, 0.3);
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.3), var(--glow-cyan);
}

.tier-card.glow-gold {
  border-color: rgba(255, 201, 71, 0.3);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2), var(--glow-gold);
}

.tier-card.glow-gold:hover {
  border-color: var(--gold);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), var(--glow-gold);
}

.tier-card.glow-cyan {
  border-color: rgba(0, 212, 255, 0.3);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2), var(--glow-cyan);
}

.tier-card.glow-cyan:hover {
  border-color: var(--cyan);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), var(--glow-cyan);
}

.tier-card.glow-violet {
  border-color: rgba(139, 92, 246, 0.3);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2), 0 0 30px rgba(139, 92, 246, 0.2);
}

.tier-card.glow-violet:hover {
  border-color: var(--violet);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), 0 0 35px rgba(139, 92, 246, 0.35);
}

.tier-card.glow-green {
  border-color: rgba(16, 185, 129, 0.3);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2), 0 0 30px rgba(16, 185, 129, 0.2);
}

.tier-card.glow-green:hover {
  border-color: var(--green);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), 0 0 35px rgba(16, 185, 129, 0.35);
}

.tier-header {
  margin-bottom: 1.25rem;
}

.tier-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.3rem 0.75rem;
  border-radius: 100px;
  display: inline-block;
  margin-bottom: 0.75rem;
}

.tier-badge.gold {
  background: rgba(255, 201, 71, 0.12);
  color: var(--gold);
  border: 1px solid rgba(255, 201, 71, 0.3);
}

.tier-badge.cyan {
  background: rgba(0, 212, 255, 0.12);
  color: var(--cyan);
  border: 1px solid rgba(0, 212, 255, 0.3);
}

.tier-badge.violet {
  background: rgba(139, 92, 246, 0.12);
  color: var(--violet);
  border: 1px solid rgba(139, 92, 246, 0.3);
}

.tier-badge.green {
  background: rgba(16, 185, 129, 0.12);
  color: var(--green);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.tier-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: 0.4rem;
}

.tier-meta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-secondary);
}

.tier-price {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 900;
  color: var(--gold);
  margin-bottom: 1.5rem;
  line-height: 1;
}

.tier-price .currency {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.tier-price .per {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--text-muted);
}

.tier-features {
  list-style: none;
  padding: 0;
  margin: 0 0 2rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  flex-grow: 1;
}

.tier-features li {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
  position: relative;
  padding-left: 1.25rem;
}

.tier-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--cyan);
  font-weight: bold;
}

.tier-btn {
  width: 100%;
  justify-content: center;
  margin-top: auto;
}