/* ── CSS Custom Properties ──────────────────────────────────────── */
@property --border-angle {
  syntax: '<angle>';
  initial-value: 0deg;
  inherits: false;
}

:root {
  --black:   #050810;
  --dark:    #0d1117;
  --surface: #161b22;
  --cyan:    #22d3ee;
  --violet:  #a78bfa;
  --orange:  #fb923c;
  --green:   #4ade80;
  --yellow:  #fbbf24;
  --white:   #e2e8f0;
  --muted:   #64748b;
  --border:  rgba(255, 255, 255, 0.07);

  --font-display: 'Syne', 'Arial Black', sans-serif;
  --font-mono:    'JetBrains Mono', 'Courier New', monospace;

  --section-pad: clamp(64px, 10vw, 120px);
  --max-w:       1200px;
  --radius:      10px;
}

/* ── Reset ──────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scrollbar-color: var(--surface) var(--black); }
body {
  background: var(--black);
  color: var(--white);
  font-family: var(--font-mono);
  font-size: clamp(13px, 1.4vw, 14.5px);
  line-height: 1.8;
  overflow-x: hidden;
}

/* ── Noise/grain overlay ─────────────────────────────────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 999;
  pointer-events: none;
  opacity: 0.028;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.72' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 220px 220px;
}

/* ── Animations ─────────────────────────────────────────────────── */
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

@keyframes dots-drift {
  from { background-position: 0 0; }
  to   { background-position: 48px 48px; }
}

@keyframes gradient-shift {
  0%   { background-position: 0% center; }
  100% { background-position: 200% center; }
}

@keyframes line-in {
  from { opacity: 0; transform: translateX(-6px); }
  to   { opacity: 1; transform: translateX(0); }
}

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

@keyframes fade-up {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes scale-in {
  from { opacity: 0; transform: scale(0.94); }
  to   { opacity: 1; transform: scale(1); }
}

@keyframes spin-slow {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to   { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes spin-border {
  to { --border-angle: 360deg; }
}

@keyframes glow-pulse {
  0%, 100% { opacity: 0.55; }
  50%       { opacity: 0.85; }
}

/* ── Ticker ──────────────────────────────────────────────────────── */
.ticker-wrap {
  width: 100%;
  overflow: hidden;
  background: var(--dark);
  border-bottom: 1px solid var(--border);
  padding: 0.5rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.ticker {
  display: flex;
  white-space: nowrap;
  width: max-content;
  animation: marquee 28s linear infinite;
  font-family: var(--font-mono);
  font-size: clamp(0.65rem, 1.2vw, 0.75rem);
  letter-spacing: 0.22em;
  color: var(--cyan);
  align-items: center;
  opacity: 0.75;
}

.ticker span { padding: 0 1rem; }

/* ── Shared ──────────────────────────────────────────────────────── */
.section-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section-header {
  text-align: center;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--cyan);
  letter-spacing: 0.1em;
  opacity: 0.7;
  margin-bottom: 0.75rem;
}

.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: 0.04em;
  margin-bottom: 0.65rem;
  color: var(--white);
}

.section-header p {
  color: var(--muted);
  font-size: clamp(0.75rem, 1.5vw, 0.88rem);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.85;
}

/* ── Button ──────────────────────────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  background: var(--cyan);
  color: var(--black);
  font-family: var(--font-mono);
  font-size: clamp(0.8rem, 1.5vw, 0.9rem);
  font-weight: 500;
  letter-spacing: 0.06em;
  border-radius: 5px;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s, filter 0.2s;
  box-shadow: 0 0 28px rgba(34,211,238,.35);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 52px rgba(34,211,238,.6);
  filter: brightness(1.1);
}

.btn-primary--large {
  padding: 1rem 2.6rem;
  font-size: clamp(0.88rem, 1.6vw, 1rem);
}

.btn-arrow { transition: transform 0.2s; }
.btn-primary:hover .btn-arrow { transform: translateX(4px); }

/* ── Hero ────────────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  padding: var(--section-pad) 1.5rem;
}

/* Animated dot grid */
.hero__grid {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(34,211,238,0.12) 1px, transparent 1px);
  background-size: 48px 48px;
  animation: dots-drift 18s linear infinite;
  pointer-events: none;
}

/* Radial mask so dots fade at edges */
.hero__grid::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 85% 75% at 50% 50%, transparent 30%, var(--black) 100%);
}

/* Ambient glows */
.hero__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
  animation: glow-pulse 6s ease-in-out infinite;
}

.hero__glow--1 {
  width: 500px; height: 400px;
  background: var(--cyan);
  opacity: 0.05;
  top: -100px; left: -80px;
  animation-delay: 0s;
}

.hero__glow--2 {
  width: 400px; height: 350px;
  background: var(--violet);
  opacity: 0.06;
  bottom: -80px; right: -60px;
  animation-delay: -3s;
}

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
  animation: fade-up 0.9s ease both;
}

/* ── Hero text ───────────────────────────────────────────────────── */
.hero__eyebrow {
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  color: var(--cyan);
  text-transform: uppercase;
  margin-bottom: 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  opacity: 0.8;
}

.eyebrow__arrow { color: var(--cyan); font-size: 0.65rem; }

.hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(3.5rem, 8vw, 7rem);
  letter-spacing: 0.04em;
  line-height: 0.92;
  margin-bottom: 1.6rem;
  /* Animated gradient text */
  background: linear-gradient(
    90deg,
    var(--cyan) 0%,
    var(--violet) 30%,
    var(--orange) 60%,
    var(--cyan) 100%
  );
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradient-shift 6s linear infinite;
}

.hero__sub {
  font-size: clamp(0.8rem, 1.6vw, 0.92rem);
  color: var(--muted);
  line-height: 1.9;
  margin-bottom: 2rem;
  max-width: 440px;
}

.hero__sub--accent {
  color: var(--white);
  opacity: 0.75;
}

.hero__cta-group { margin-bottom: 1.2rem; }

.hero__fine {
  font-size: 0.65rem;
  color: var(--muted);
  opacity: 0.45;
  font-style: italic;
  line-height: 1.6;
}

/* ── Terminal ────────────────────────────────────────────────────── */
.hero__terminal {
  perspective: 800px;
}

.terminal {
  background: rgba(13, 17, 23, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(34,211,238,0.15);
  border-radius: 10px;
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(34,211,238,0.05),
    0 24px 64px rgba(0,0,0,0.5),
    inset 0 1px 0 rgba(255,255,255,0.04);
  animation: scale-in 0.7s 0.3s ease both;
}

.terminal__bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: rgba(22, 27, 34, 0.9);
  border-bottom: 1px solid rgba(34,211,238,0.08);
}

.terminal__dot {
  width: 12px; height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}

.terminal__dot--red    { background: #ff5f57; box-shadow: 0 0 6px rgba(255,95,87,.5); }
.terminal__dot--yellow { background: #febc2e; box-shadow: 0 0 6px rgba(254,188,46,.4); }
.terminal__dot--green  { background: #28c840; box-shadow: 0 0 6px rgba(40,200,64,.4); }

.terminal__title {
  flex: 1;
  text-align: center;
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.05em;
}

.terminal__body {
  padding: 1.25rem 1.4rem;
  font-size: clamp(0.72rem, 1.3vw, 0.82rem);
  line-height: 2;
}

/* Terminal line animations */
.terminal__line {
  opacity: 0;
  animation: line-in 0.15s ease forwards;
}

.t-l1 { animation-delay: 0.6s; }
.t-l2 { animation-delay: 1.0s; }
.t-l3 { animation-delay: 1.2s; }
.t-l4 { animation-delay: 1.5s; }
.t-l5 { animation-delay: 2.0s; }
.t-l6 { animation-delay: 2.25s; }
.t-l7 { animation-delay: 2.5s; }
.t-l8 { animation-delay: 2.8s; }

.t-prompt  { color: var(--green);  font-weight: 500; }
.t-cmd     { color: var(--white);  opacity: 0.9; }
.t-dir     { color: var(--cyan);   }
.t-comment { color: var(--muted);  font-style: italic; }

.t-cursor {
  color: var(--cyan);
  font-weight: 500;
  animation: blink 1s step-end infinite;
  animation-delay: 2.8s;
}

/* ── Topics ──────────────────────────────────────────────────────── */
.topics-section {
  padding: var(--section-pad) 0;
  background: var(--dark);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.topics-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: center;
}

.topic-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.4rem 0.85rem;
  background: rgba(255,255,255,0.03);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  border: 1px solid var(--border);
  border-left-width: 2px;
  cursor: default;
  transition: transform 0.2s, background 0.2s, box-shadow 0.2s;
  white-space: nowrap;
}

.topic-tag:hover {
  transform: translateY(-2px);
  background: rgba(255,255,255,0.06);
}

.topic-tag__prefix {
  font-size: 0.65rem;
  opacity: 0.55;
  letter-spacing: 0.04em;
}

.topic-tag--cyan   { border-left-color: var(--cyan);   color: var(--cyan);   }
.topic-tag--cyan:hover   { box-shadow: 0 0 16px rgba(34,211,238,.15); }
.topic-tag--violet { border-left-color: var(--violet); color: var(--violet); }
.topic-tag--violet:hover { box-shadow: 0 0 16px rgba(167,139,250,.15); }
.topic-tag--orange { border-left-color: var(--orange); color: var(--orange); }
.topic-tag--orange:hover { box-shadow: 0 0 16px rgba(251,146,60,.15); }
.topic-tag--green  { border-left-color: var(--green);  color: var(--green);  }
.topic-tag--green:hover  { box-shadow: 0 0 16px rgba(74,222,128,.15); }
.topic-tag--yellow { border-left-color: var(--yellow); color: var(--yellow); }
.topic-tag--yellow:hover { box-shadow: 0 0 16px rgba(251,191,36,.15); }

/* ── Posts ───────────────────────────────────────────────────────── */
.posts-section {
  padding: var(--section-pad) 0;
  background: var(--black);
}

.posts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
}

/* Base post card */
.post-card {
  background: rgba(22, 27, 34, 0.6);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
  position: relative;
}

.post-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255,255,255,0.14);
  box-shadow: 0 16px 48px rgba(0,0,0,0.4);
}

/* Featured card animated gradient border */
.post-card--featured {
  border-color: transparent;
  background: var(--surface);
}

.post-card--featured::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: calc(var(--radius) + 1px);
  background: conic-gradient(
    from var(--border-angle),
    var(--cyan)   0deg,
    var(--violet) 120deg,
    var(--orange) 240deg,
    var(--cyan)   360deg
  );
  z-index: -1;
  animation: spin-border 5s linear infinite;
}

/* Mask the glow so it only shows as a border */
.post-card--featured::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  background: var(--surface);
  z-index: -1;
}

.post-card__inner {
  padding: 1.6rem;
  position: relative;
  z-index: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.post-card__file {
  font-size: 0.68rem;
  margin-bottom: 0.85rem;
  opacity: 0.55;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.post-card__filepath { color: var(--muted); }
.post-card__filename { color: var(--cyan); }

.post-tag {
  display: inline-block;
  font-size: 0.65rem;
  font-family: var(--font-mono);
  margin-bottom: 0.8rem;
  padding: 0.15rem 0.45rem;
  border-radius: 3px;
  letter-spacing: 0.06em;
  background: rgba(255,255,255,0.04);
}

.post-tag--cyan   { color: var(--cyan);   border: 1px solid rgba(34,211,238,.25); }
.post-tag--violet { color: var(--violet); border: 1px solid rgba(167,139,250,.25); }
.post-tag--green  { color: var(--green);  border: 1px solid rgba(74,222,128,.25); }

.post-card__title {
  font-family: var(--font-display);
  font-size: clamp(1rem, 2vw, 1.3rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 0.02em;
  color: var(--white);
  margin-bottom: 0.85rem;
  flex: 1;
}

.post-card__teaser {
  font-size: 0.77rem;
  color: var(--muted);
  line-height: 1.75;
  margin-bottom: 1.25rem;
}

.post-card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-decoration: none;
  color: var(--cyan);
  transition: gap 0.2s, opacity 0.2s;
  margin-top: auto;
}

.post-card--featured .post-card__link { color: var(--cyan); }

.post-card:nth-child(2) .post-card__link { color: var(--violet); }
.post-card:nth-child(3) .post-card__link { color: var(--green); }

.post-card__link:hover { gap: 0.6rem; opacity: 0.85; }

/* ── Philosophy ──────────────────────────────────────────────────── */
.philosophy-section {
  padding: var(--section-pad) 0;
  background: var(--dark);
  text-align: center;
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.philosophy-bg {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-display);
  font-size: clamp(14rem, 30vw, 22rem);
  font-weight: 800;
  opacity: 0.028;
  pointer-events: none;
  filter: blur(3px);
  animation: spin-slow 80s linear infinite;
  color: var(--cyan);
  letter-spacing: -0.05em;
  line-height: 1;
  white-space: nowrap;
}

.philosophy-inner {
  position: relative;
  z-index: 1;
}

.philosophy-inner h2 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5.5vw, 4rem);
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--white);
  margin: 0.75rem 0 2.5rem;
  /* Gradient text for section title */
  background: linear-gradient(135deg, var(--cyan) 0%, var(--violet) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.philosophy-list {
  list-style: none;
  text-align: left;
  display: inline-block;
  max-width: 680px;
  width: 100%;
}

.philosophy-list li {
  font-size: clamp(0.82rem, 1.8vw, 0.96rem);
  padding: 0.8rem 0;
  color: var(--white);
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 1rem;
  align-items: baseline;
  transition: color 0.2s, padding-left 0.2s;
  line-height: 1.6;
}

.philosophy-list li:last-child { border-bottom: none; }

.philosophy-list li:hover {
  color: var(--cyan);
  padding-left: 0.5rem;
}

.philosophy-list li::before {
  content: '//';
  font-family: var(--font-mono);
  font-size: 0.8em;
  flex-shrink: 0;
  color: var(--muted);
  opacity: 0.6;
  letter-spacing: -0.05em;
}

.philosophy-list em {
  color: var(--orange);
  font-style: normal;
}

/* ── CTA ─────────────────────────────────────────────────────────── */
.cta-section {
  padding: var(--section-pad) 0;
  text-align: center;
  background: var(--black);
  position: relative;
  overflow: hidden;
}

.cta-glow {
  position: absolute;
  width: 600px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(ellipse, var(--cyan) 0%, transparent 70%);
  top: -200px; left: 50%;
  transform: translateX(-50%);
  opacity: 0.06;
  pointer-events: none;
  filter: blur(40px);
}

.cta-inner {
  position: relative;
  z-index: 1;
}

.cta-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 9vw, 7rem);
  font-weight: 800;
  letter-spacing: 0.03em;
  line-height: 0.95;
  margin-bottom: 1rem;
  color: var(--white);
}

.cta-sub {
  color: var(--muted);
  font-size: clamp(0.8rem, 1.6vw, 0.9rem);
  margin-bottom: 2.5rem;
  line-height: 1.8;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

/* ── Footer ──────────────────────────────────────────────────────── */
.site-footer {
  padding: 3rem 0 2.5rem;
  background: var(--dark);
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer-logo {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  margin-bottom: 0.75rem;
  letter-spacing: -0.04em;
}

/* Style the <, /, > differently is done via color on children if needed,
   but here we use gradient for the full string */
.footer-logo {
  background: linear-gradient(90deg, var(--cyan) 0%, var(--violet) 50%, var(--orange) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}

.footer-tagline {
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  color: var(--white);
  margin-bottom: 0.35rem;
}

.footer-tagline strong { color: var(--cyan); }

.footer-copy {
  font-size: 0.7rem;
  color: var(--muted);
  margin-bottom: 0.6rem;
}

.footer-disclaimer {
  font-size: 0.65rem;
  color: var(--muted);
  opacity: 0.4;
  font-style: italic;
  line-height: 1.75;
}

/* ── Responsive ──────────────────────────────────────────────────── */
@media (max-width: 860px) {
  .hero__inner {
    grid-template-columns: 1fr;
  }

  .hero__terminal {
    display: none;
  }

  .posts-grid {
    grid-template-columns: 1fr;
    max-width: 520px;
    margin: 0 auto;
  }
}

@media (max-width: 600px) {
  .hero__title { font-size: clamp(2.8rem, 16vw, 4.5rem); }
  .cta-title   { font-size: clamp(2.4rem, 14vw, 4rem); }
  .philosophy-bg { font-size: 8rem; }
}