@import url('https://fonts.googleapis.com/css2?family=Unbounded:wght@400;500;700;900&display=swap');

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

html { scroll-behavior: smooth; }

:root {
  --black: #000000;
  --gray: #262626;
  --yellow: #FFFF00;
  --white: #FFFFFF;
  --font: 'Unbounded', sans-serif;
}

body {
  background: var(--black);
  color: var(--white);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
}

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

/* HEADER */
header {
  border-bottom: 1px solid var(--gray);
  padding: 24px 0;
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  background: var(--black);
  z-index: 10;
  overflow: hidden;
}

header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 17px;
  font-weight: 700;
  color: var(--yellow);
  letter-spacing: -0.5px;
  transition: opacity 0.2s;
}
.logo:hover { opacity: 0.7; }

nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

nav a {
  font-size: 12px;
  font-weight: 500;
  color: var(--white);
  opacity: 0.35;
  transition: opacity 0.2s, color 0.2s;
  position: relative;
  letter-spacing: 0.5px;
}

nav a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--yellow);
  transition: width 0.25s ease;
}

nav a:hover { opacity: 1; }
nav a:hover::after { width: 100%; }

nav a.active {
  opacity: 1;
  color: var(--yellow);
}
nav a.active::after { width: 100%; }

/* CONTAINER */
.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px;
}

/* HERO */
.hero {
  padding: 80px 0 72px;
  border-bottom: 1px solid var(--gray);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.38);
  margin-bottom: 32px;
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--yellow);
  flex-shrink: 0;
}

.hero h1 {
  font-size: clamp(30px, 5vw, 52px);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -1.5px;
  margin-bottom: 24px;
}

.hero h1 span { color: var(--yellow); }

.hero p {
  font-size: 15px;
  opacity: 0.5;
  max-width: 520px;
  line-height: 1.9;
}

/* POSTS SECTION */
.posts {
  padding: 64px 0;
}

.section-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 8px;
}

.section-header h2 {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--yellow);
  opacity: 0.55;
  white-space: nowrap;
}

.section-header::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--gray);
}

/* POST CARD */
.post-card {
  display: grid;
  grid-template-columns: 52px 1fr;
  border-bottom: 1px solid var(--gray);
  padding: 40px 0;
  cursor: pointer;
}

.post-number {
  font-size: 11px;
  font-weight: 700;
  color: var(--yellow);
  opacity: 0.18;
  padding-top: 5px;
  letter-spacing: 1px;
  transition: opacity 0.25s ease;
  user-select: none;
}

.post-card:hover .post-number { opacity: 1; }

.post-body {
  transition: transform 0.28s ease;
}

.post-card:hover .post-body { transform: translateX(6px); }

.post-card .meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  opacity: 0.38;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.post-tag {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--yellow);
  background: rgba(255,255,0,0.07);
  border: 1px solid rgba(255,255,0,0.18);
  padding: 3px 8px;
  border-radius: 2px;
  opacity: 1;
}

.meta-sep { opacity: 0.4; }

.post-card h3 {
  font-size: clamp(17px, 2.4vw, 22px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}

.post-card p {
  font-size: 14px;
  opacity: 0.5;
  line-height: 1.85;
}

.post-read {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 20px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--yellow);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.post-card:hover .post-read {
  opacity: 1;
  transform: translateY(0);
}

.post-read .arrow {
  display: inline-block;
  transition: transform 0.25s ease;
}

.post-card:hover .post-read .arrow { transform: translateX(4px); }

/* ARTICLE */
.article {
  padding: 48px 0 120px;
  max-width: 680px;
  margin: 0 auto;
}

.article-back {
  margin-bottom: 48px;
}

.article-back a {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--white);
  opacity: 0.28;
  transition: opacity 0.2s, color 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.article-back a:hover {
  opacity: 1;
  color: var(--yellow);
}

.article .meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 11px;
  opacity: 0.4;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.article h1 {
  font-size: clamp(24px, 4vw, 40px);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -1px;
  margin-bottom: 20px;
}

.article-divider {
  width: 36px;
  height: 3px;
  background: var(--yellow);
  margin-bottom: 48px;
  border-radius: 2px;
}

.article h2 {
  font-size: 18px;
  font-weight: 700;
  margin: 56px 0 16px;
  letter-spacing: -0.5px;
  padding-left: 16px;
  position: relative;
}

.article h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 3px;
  bottom: 3px;
  width: 3px;
  background: var(--yellow);
  border-radius: 2px;
}

.article p {
  font-size: 16px;
  line-height: 1.9;
  opacity: 0.82;
  margin-bottom: 22px;
}

.article blockquote {
  border-left: 3px solid var(--yellow);
  padding: 4px 0 4px 24px;
  margin: 36px 0;
  font-size: 18px;
  font-style: italic;
  opacity: 0.78;
}

.article strong { color: var(--yellow); font-weight: 700; }

/* ABOUT */
.about {
  padding: 80px 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.about h1 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 900;
  letter-spacing: -1px;
  margin-bottom: 28px;
  line-height: 1.15;
}

.about h1 span { color: var(--yellow); }

.about p {
  font-size: 15px;
  opacity: 0.62;
  margin-bottom: 18px;
  line-height: 1.9;
}

.about-stats {
  display: flex;
  margin-top: 44px;
  padding-top: 32px;
  border-top: 1px solid var(--gray);
}

.stat {
  flex: 1;
}

.stat + .stat {
  border-left: 1px solid var(--gray);
  padding-left: 24px;
}

.stat-value {
  font-size: 26px;
  font-weight: 900;
  color: var(--yellow);
  letter-spacing: -1px;
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 9px;
  font-weight: 500;
  opacity: 0.32;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  line-height: 1.5;
}

.about-photo {
  aspect-ratio: 1;
  background: var(--gray);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}

.about-photo::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255,255,0,0.1);
  border-radius: 4px;
  pointer-events: none;
}

.about-photo img { width: 100%; height: 100%; object-fit: cover; }

/* FOOTER */
footer {
  border-top: 1px solid var(--gray);
  padding: 40px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-copy {
  font-size: 12px;
  opacity: 0.22;
  font-family: var(--font);
}

.footer-social {
  display: flex;
  align-items: center;
  gap: 20px;
}

.footer-social a {
  color: var(--white);
  opacity: 0.28;
  transition: opacity 0.2s, color 0.2s;
  display: inline-flex;
  align-items: center;
}

.footer-social a:hover {
  opacity: 1;
  color: var(--yellow);
}

/* RESPONSIVE */
@media (max-width: 640px) {
  header { padding: 16px 0; position: static; }
  .logo { font-size: 13px; }
  nav { gap: 16px; }
  nav a { font-size: 11px; }
  .container { padding: 0 16px; }

  .hero { padding: 48px 0 44px; }
  .hero-badge { font-size: 10px; margin-bottom: 24px; }
  .hero p { font-size: 14px; }

  .posts { padding: 40px 0; }
  .post-card { grid-template-columns: 36px 1fr; padding: 28px 0; }
  .post-card h3 { font-size: 16px; }
  .post-number { font-size: 10px; }

  .article { padding: 32px 0 80px; }
  .article h1 { font-size: 22px; letter-spacing: -0.5px; }
  .article h2 { font-size: 16px; margin: 36px 0 12px; }
  .article p { font-size: 15px; }
  .article blockquote { font-size: 15px; padding-left: 16px; }

  .about { grid-template-columns: 1fr; gap: 32px; padding: 48px 0; }
  .about-photo { max-width: 200px; order: -1; }
  .about h1 { font-size: 28px; }

  .footer-inner { flex-direction: column; gap: 20px; }
}

/* HERO ENTRANCE ANIMATION (JS-triggered via body.hero-loaded) */
.hero h1,
.hero p {
  opacity: 0;
  -webkit-transform: translateY(14px);
  transform: translateY(14px);
  -webkit-transition: opacity 0.6s ease, -webkit-transform 0.6s ease;
  transition: opacity 0.6s ease, transform 0.6s ease;
}
body.hero-loaded .hero h1 {
  opacity: 1;
  -webkit-transform: translateY(0);
  transform: translateY(0);
}
body.hero-loaded .hero p {
  opacity: 1;
  -webkit-transform: translateY(0);
  transform: translateY(0);
  -webkit-transition-delay: 0.15s;
  transition-delay: 0.15s;
}

/* FADE IN ON SCROLL */
.fade-in {
  opacity: 0;
  -webkit-transform: translateY(18px);
  transform: translateY(18px);
  -webkit-transition: opacity 0.55s ease, -webkit-transform 0.55s ease;
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.fade-in.visible {
  opacity: 1;
  -webkit-transform: translateY(0);
  transform: translateY(0);
}

/* READING PROGRESS BAR */
#progress-bar {
  position: absolute;
  bottom: -1px;
  left: 0;
  height: 2px;
  width: 0%;
  background: var(--yellow);
  pointer-events: none;
  z-index: 1;
}

/* BACK TO TOP */
#back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 40px;
  height: 40px;
  background: var(--yellow);
  color: var(--black);
  border: none;
  cursor: pointer;
  font-family: var(--font);
  font-size: 18px;
  font-weight: 900;
  line-height: 40px;
  text-align: center;
  border-radius: 2px;
  opacity: 0;
  transition: opacity 0.25s, background 0.2s;
  pointer-events: none;
  z-index: 50;
}
#back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}
#back-to-top:hover { background: var(--white); }

@media (max-width: 640px) {
  #back-to-top { bottom: 20px; right: 16px; }
}

/* Safari fixes */
@supports (-webkit-touch-callout: none) {
  .about-photo img { -webkit-transform: translateZ(0); }
  body { -webkit-text-size-adjust: 100%; }
}

@supports (padding: max(0px)) {
  .container {
    padding-left: max(16px, env(safe-area-inset-left));
    padding-right: max(16px, env(safe-area-inset-right));
  }
  footer {
    padding-bottom: max(24px, env(safe-area-inset-bottom));
  }
}