/* ============================================================
   datapains.io — style.css
   Palette: #080808 bg · #FFD000 accent · #C0392B red echo
   Fonts: Space Grotesk (display) · Inter (body) · monospace (labels)
   ============================================================ */

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

:root {
  --bg:        #080808;
  --yellow:    #FFD000;
  --red:       #C0392B;
  --text:      #F5F5F5;
  --muted:     #888888;
  --border:    rgba(255, 208, 0, 0.15);
  --glow:      rgba(255, 208, 0, 0.25);
  --glow-lg:   rgba(255, 208, 0, 0.12);
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  cursor: none; /* custom cursor */
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* ---------- Custom cursor ---------- */
#cursor {
  position: fixed;
  width: 12px;
  height: 12px;
  background: var(--yellow);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: transform 0.08s ease, width 0.2s ease, height 0.2s ease, opacity 0.2s ease;
  box-shadow: 0 0 12px var(--yellow), 0 0 24px var(--glow);
}
#cursor.expanded {
  width: 28px;
  height: 28px;
  background: transparent;
  border: 2px solid var(--yellow);
  box-shadow: 0 0 20px var(--yellow);
}
/* restore default cursor for interactive elements so they work on touch */
@media (hover: none) {
  body { cursor: auto; }
  #cursor { display: none; }
}

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.label {
  font-family: monospace;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--yellow);
  border-left: 2px solid var(--yellow);
  padding-left: 0.6rem;
  display: inline-block;
}

/* ---------- Navigation ---------- */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 2.5rem;
  background: rgba(8, 8, 8, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: 0.06em;
  color: var(--yellow);
  cursor: none;
  transition: text-shadow 0.2s;
}
.nav-logo:hover { text-shadow: 0 0 16px var(--yellow); }

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}
.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted);
  transition: color 0.2s;
  cursor: none;
}
.nav-links a:hover { color: var(--text); }

/* Hamburger (mobile) */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  transition: transform 0.3s, opacity 0.3s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../assets/images/hero.jpg');
  background-size: cover;
  background-position: center top;
  filter: grayscale(80%) brightness(0.35);
  z-index: 0;
}

/* Film grain overlay */
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.045;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 128px 128px;
  pointer-events: none;
}

/* Neural net canvas */
#neural-canvas {
  position: absolute;
  inset: 0;
  z-index: 1;
  opacity: 0.35;
}

/* Dot-grid texture layer */
.hero-grid {
  position: absolute;
  inset: 0;
  z-index: 2;
  background-image: radial-gradient(circle, rgba(255, 208, 0, 0.06) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 3;
  padding: 0 2.5rem;
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
}

/* Letter-by-letter name reveal */
.hero-name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(3rem, 8vw, 6.5rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text);
  display: flex;
  flex-wrap: wrap;
  gap: 0.02em;
  margin-bottom: 1.2rem;
}

.hero-name .word { display: flex; margin-right: 0.35em; }

.hero-name .letter {
  display: inline-block;
  opacity: 0;
  transform: translateY(40px);
  animation: letterReveal 0.5s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

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

/* stagger delays — 14 letters total (Simon=5, Thelin=6, space handled) */
.hero-name .letter:nth-child(1)  { animation-delay: 0.05s; }
.hero-name .letter:nth-child(2)  { animation-delay: 0.10s; }
.hero-name .letter:nth-child(3)  { animation-delay: 0.15s; }
.hero-name .letter:nth-child(4)  { animation-delay: 0.20s; }
.hero-name .letter:nth-child(5)  { animation-delay: 0.25s; }
.hero-name .letter:nth-child(6)  { animation-delay: 0.32s; }
.hero-name .letter:nth-child(7)  { animation-delay: 0.38s; }
.hero-name .letter:nth-child(8)  { animation-delay: 0.44s; }
.hero-name .letter:nth-child(9)  { animation-delay: 0.50s; }
.hero-name .letter:nth-child(10) { animation-delay: 0.56s; }
.hero-name .letter:nth-child(11) { animation-delay: 0.62s; }

.hero-subtitle {
  font-family: monospace;
  font-size: clamp(0.85rem, 2vw, 1rem);
  color: var(--yellow);
  letter-spacing: 0.12em;
  margin-bottom: 2.2rem;
  opacity: 0;
  animation: fadeUp 0.6s 0.75s ease forwards;
}

.hero-bio {
  font-size: clamp(1rem, 2.2vw, 1.15rem);
  color: rgba(245, 245, 245, 0.72);
  max-width: 600px;
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeUp 0.6s 0.95s ease forwards;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  background: var(--yellow);
  color: #000;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  border: none;
  cursor: none;
  transition: box-shadow 0.2s, transform 0.2s;
  opacity: 0;
  animation: fadeUp 0.6s 1.1s ease forwards;
}
.hero-cta:hover {
  box-shadow: 0 0 28px var(--yellow), 0 0 60px var(--glow-lg);
  transform: translateY(-2px);
}

/* ---------- Section base ---------- */
section { padding: 7rem 2.5rem; }

.section-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.section-heading {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 3.5rem;
  position: relative;
}

/* Scroll fade-in */
.fade-in {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Stats bar ---------- */
#stats {
  padding: 3rem 2.5rem;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: rgba(255, 208, 0, 0.03);
}

.stats-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.stat-value {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  color: var(--yellow);
  line-height: 1;
  margin-bottom: 0.4rem;
}

.stat-label {
  font-family: monospace;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.stat-value.stat-text {
  font-size: clamp(1.4rem, 2.2vw, 2rem);
  line-height: 1.15;
}

/* ---------- About ---------- */
#about { border-top: 1px solid var(--border); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 4rem;
  align-items: start;
}

.about-img {
  position: relative;
}
.about-img img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  object-position: center top;
  filter: grayscale(100%) contrast(1.05);
}
.about-img::after {
  content: '';
  position: absolute;
  inset: 12px -12px -12px 12px;
  border: 1px solid var(--border);
  pointer-events: none;
}

.about-text .label { margin-bottom: 1.5rem; }

.about-text h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin-bottom: 1.25rem;
}

.about-text p {
  color: rgba(245, 245, 245, 0.72);
  margin-bottom: 1rem;
  font-size: 1.05rem;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.8rem;
}
.tag {
  font-family: monospace;
  font-size: 0.75rem;
  padding: 0.3rem 0.75rem;
  border: 1px solid var(--border);
  color: var(--muted);
  letter-spacing: 0.08em;
  transition: color 0.2s, border-color 0.2s;
}
.tag:hover {
  color: var(--yellow);
  border-color: rgba(255, 208, 0, 0.4);
}

/* ---------- Content / YouTube ---------- */
#content { border-top: 1px solid var(--border); }

.content-channel {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.5rem 2rem;
  border: 1px solid var(--border);
  margin-bottom: 3rem;
  background: rgba(255, 208, 0, 0.03);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.content-channel:hover {
  border-color: rgba(255, 208, 0, 0.4);
  box-shadow: 0 0 30px var(--glow-lg);
}
.channel-logo {
  width: 64px;
  height: 64px;
  object-fit: contain;
}
.channel-info h3 {
  font-size: 1.2rem;
  margin-bottom: 0.25rem;
}
.channel-info p {
  font-family: monospace;
  font-size: 0.8rem;
  color: var(--muted);
}

.videos-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.video-card {
  border: 1px solid var(--border);
  overflow: hidden;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  cursor: none;
}
.video-card:hover {
  border-color: rgba(255, 208, 0, 0.4);
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}
.video-thumb {
  width: 100%;
  aspect-ratio: 16/9;
  background: #111;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(20%);
  transition: filter 0.3s;
}
.video-card:hover .video-thumb img { filter: grayscale(0%); }

.video-thumb-placeholder {
  width: 100%;
  aspect-ratio: 16/9;
  background: #111;
  display: flex;
  align-items: center;
  justify-content: center;
}
.video-thumb-placeholder span {
  font-family: monospace;
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.1em;
}
.video-info {
  padding: 1rem;
}
.video-info h4 {
  font-size: 0.95rem;
  margin-bottom: 0.4rem;
  line-height: 1.3;
}
.video-info .video-meta {
  font-family: monospace;
  font-size: 0.7rem;
  color: var(--muted);
}

.cta-link {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--yellow);
  letter-spacing: 0.06em;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: gap 0.2s;
  cursor: none;
}
.cta-link:hover { gap: 0.7rem; }

/* ---------- Blog ---------- */
#blog { border-top: 1px solid var(--border); }

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.blog-card {
  border: 1px solid var(--border);
  padding: 1.75rem;
  position: relative;
  transition: border-color 0.2s, box-shadow 0.2s;
  cursor: none;
}
.blog-card:hover:not(.locked) {
  border-color: rgba(255, 208, 0, 0.35);
  box-shadow: 0 0 20px var(--glow-lg);
}
.blog-card.locked {
  opacity: 0.4;
  cursor: not-allowed;
}
.blog-card.locked::after {
  content: 'COMING SOON';
  position: absolute;
  top: 1rem; right: 1rem;
  font-family: monospace;
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 0.2rem 0.5rem;
}
.blog-date {
  font-family: monospace;
  font-size: 0.7rem;
  color: var(--muted);
  margin-bottom: 0.75rem;
  letter-spacing: 0.1em;
}
.blog-card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.6rem;
  line-height: 1.3;
}
.blog-card p {
  font-size: 0.875rem;
  color: var(--muted);
  margin-bottom: 1.25rem;
}
.blog-read-more {
  font-family: monospace;
  font-size: 0.75rem;
  color: var(--yellow);
  letter-spacing: 0.1em;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: gap 0.2s;
}
.blog-read-more:hover { gap: 0.6rem; }

/* ---------- Experience ---------- */
#experience { border-top: 1px solid var(--border); }

.experience-list { display: flex; flex-direction: column; gap: 0; }

.exp-item {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 2rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--border);
}
.exp-item:first-child { border-top: 1px solid var(--border); }

.exp-period {
  font-family: monospace;
  font-size: 0.75rem;
  color: var(--muted);
  padding-top: 0.2rem;
  letter-spacing: 0.06em;
}
.exp-role {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.2rem;
}
.exp-company {
  font-family: monospace;
  font-size: 0.8rem;
  color: var(--yellow);
  margin-bottom: 0.6rem;
}
.exp-desc {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.6;
}

/* ---------- Speaking & Press ---------- */
#speaking { border-top: 1px solid var(--border); }

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

.speaking-card {
  border: 1px solid var(--border);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
  cursor: none;
}
.speaking-card:hover {
  border-color: rgba(255, 208, 0, 0.45);
  box-shadow: 0 0 32px var(--glow-lg);
  transform: translateY(-3px);
}

.speaking-card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}
.speaking-type {
  font-family: monospace;
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  color: var(--yellow);
  text-transform: uppercase;
}
.speaking-arrow {
  font-size: 1.1rem;
  color: var(--yellow);
  transition: transform 0.2s;
}
.speaking-card:hover .speaking-arrow { transform: translate(3px, -3px); }

.speaking-card h3 {
  font-size: 1.3rem;
  line-height: 1.2;
}
.speaking-card p {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.6;
  flex: 1;
}
.speaking-cta {
  font-family: monospace;
  font-size: 0.75rem;
  color: var(--yellow);
  letter-spacing: 0.08em;
  margin-top: 0.5rem;
}

@media (max-width: 900px) {
  .speaking-grid { grid-template-columns: 1fr; }
}

/* ---------- Contact ---------- */
#contact { border-top: 1px solid var(--border); }

.contact-links { display: flex; flex-direction: column; }

.contact-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border);
  transition: padding-left 0.2s;
  cursor: none;
}
.contact-link:first-child { border-top: 1px solid var(--border); }
.contact-link:hover { padding-left: 0.75rem; }

.contact-link-label {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.contact-link-label span:first-child {
  font-family: monospace;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--muted);
  text-transform: uppercase;
}
.contact-link-label span:last-child {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.15rem;
  font-weight: 600;
}
.contact-arrow {
  font-size: 1.4rem;
  color: var(--yellow);
  transition: transform 0.2s;
}
.contact-link:hover .contact-arrow { transform: translate(4px, -4px); }

/* ---------- Footer ---------- */
footer {
  padding: 2.5rem 2.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 800;
  font-size: 0.95rem;
  color: var(--yellow);
  letter-spacing: 0.06em;
}
.footer-copy {
  font-family: monospace;
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.08em;
}
.footer-edu {
  font-family: monospace;
  font-size: 0.65rem;
  color: #444;
  text-align: right;
  line-height: 1.6;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-img { max-width: 360px; margin: 0 auto; }
  .about-img::after { display: none; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .videos-grid { grid-template-columns: 1fr 1fr; }
  .blog-grid { grid-template-columns: 1fr 1fr; }
  .exp-item { grid-template-columns: 1fr; gap: 0.5rem; }
}

@media (max-width: 640px) {
  nav { padding: 1rem 1.25rem; }
  section { padding: 5rem 1.25rem; }
  .hero-content { padding: 0 1.25rem; }
  .nav-links {
    display: none;
    position: fixed;
    top: 56px; left: 0; right: 0;
    background: rgba(8,8,8,0.97);
    flex-direction: column;
    align-items: center;
    gap: 0;
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border);
  }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; text-align: center; }
  .nav-links a { display: block; padding: 0.9rem; font-size: 1rem; }
  .nav-toggle { display: flex; }
  .videos-grid { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 1.5rem; }
  footer { flex-direction: column; gap: 1rem; text-align: center; }
  .footer-edu { text-align: center; }
}