/* ============================================================
   THREE BLADES DATA — Matcha Terminal
   Fonts: Space Grotesk (body/headings) + JetBrains Mono (labels)
   Palette: green-tinted blacks + matcha green ramp
   ============================================================ */

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

:root {
  /* Backgrounds */
  --void: #050905;
  --deep: #080f08;
  --surface: #0d160d;
  --raised: #121e12;

  /* Borders */
  --border-dim: #1d3a1d;
  --border-soft: #2d5a2d;
  --border-mid: #4a8a4a;

  /* Text & Accents */
  --ghost: #3a5c3a;
  --muted: #527852;
  --secondary: #82b882;
  --green-mid: #4a8c4a;
  --bright: #6dc96d;
  --vivid: #8de68d;
  --primary: #c8f0c8;
  --heading: #d4f0d4;

  /* Fonts */
  --font-body: 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

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

/* Subtle scanline overlay */
body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.03) 2px,
    rgba(0, 0, 0, 0.03) 4px
  );
  pointer-events: none;
  z-index: 9999;
}

a {
  color: var(--bright);
  text-decoration: none;
  transition: color 0.2s ease, text-shadow 0.2s ease;
}

a:hover {
  color: var(--vivid);
  text-shadow: 0 0 12px rgba(109, 201, 109, 0.2);
}

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

/* --- Typography --- */
h1, h2, h3, h4 {
  font-family: var(--font-body);
  color: var(--heading);
  font-weight: 500;
  line-height: 1.2;
}

h1 { font-size: 2.8rem; letter-spacing: -0.03em; }
h2 { font-size: 1.8rem; letter-spacing: -0.02em; }
h3 { font-size: 1.2rem; }

p { margin-bottom: 1.2rem; }
p:last-child { margin-bottom: 0; }

.mono {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.02em;
}

.green { color: var(--bright); }

.glow {
  text-shadow: 0 0 20px rgba(109, 201, 109, 0.2), 0 0 40px rgba(109, 201, 109, 0.08);
}

/* --- Layout --- */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 2rem;
}

section {
  padding: 6rem 0;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(8, 15, 8, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-dim);
}

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-logo img {
  width: 36px;
  height: 36px;
  border-radius: 6px;
}

.nav-logo span {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--bright);
  font-weight: 400;
  letter-spacing: 0.03em;
}

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

.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--muted);
  text-transform: lowercase;
  letter-spacing: 0.05em;
  transition: color 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--bright);
  text-shadow: none;
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--bright);
  margin: 5px 0;
  transition: 0.3s;
}

/* --- Hero --- */
.hero {
  padding: 10rem 0 6rem;
  position: relative;
  text-align: center;
}

.hero::before {
  content: '';
  position: absolute;
  top: 64px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(109, 201, 109, 0.04) 0%, transparent 70%);
  pointer-events: none;
}

.hero-logo {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  margin: 0 auto 3rem;
  object-fit: cover;
}

.hero-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--green-mid);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  display: block;
}

.hero h1 {
  margin-bottom: 1.5rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero h1 .green {
  color: var(--vivid);
  text-shadow: 0 0 30px rgba(109, 201, 109, 0.2);
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--secondary);
  max-width: 580px;
  line-height: 1.8;
  margin: 0 auto;
}

.hero-cta {
  margin-top: 2.5rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--void);
  background: var(--bright);
  padding: 0.75rem 1.8rem;
  border: none;
  border-radius: 6px;
  transition: all 0.25s ease;
  letter-spacing: 0.03em;
  font-weight: 500;
}

.hero-cta:hover {
  background: var(--vivid);
  color: var(--void);
  text-shadow: none;
}

/* --- Divider --- */
.divider {
  border: none;
  height: 1px;
  background: var(--border-dim);
  margin: 0;
}

/* --- Services --- */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 3rem;
}

.service-card {
  background: var(--deep);
  border: 1px solid var(--border-dim);
  border-radius: 8px;
  padding: 2.5rem;
  transition: border-color 0.3s ease;
}

.service-card:hover {
  border-color: var(--border-soft);
}

.service-number {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--green-mid);
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
  display: block;
}

.service-card h3 {
  margin-bottom: 1.2rem;
  font-size: 1.3rem;
}

.service-card p {
  color: var(--secondary);
  font-size: 0.95rem;
}

.service-tech {
  margin-top: 1.5rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--border-dim);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.03em;
}

/* --- About --- */
.about-grid {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 3rem;
  align-items: start;
  margin-top: 3rem;
}

.about-photo {
  width: 260px;
  height: 320px;
  border-radius: 8px;
  object-fit: cover;
  border: 1px solid var(--border-dim);
  filter: grayscale(10%);
  transition: filter 0.4s ease;
}

.about-photo:hover {
  filter: grayscale(0%);
}

.about-text p {
  font-size: 0.95rem;
  margin-bottom: 1.2rem;
}

.about-text .mono {
  color: var(--muted);
  margin-top: 1.5rem;
}

/* --- Values --- */
.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}

.value-item h3 {
  font-size: 1.1rem;
  margin-bottom: 0.4rem;
}

.value-item p {
  font-size: 0.9rem;
  color: var(--muted);
}

/* --- Contact --- */
.contact {
  text-align: center;
}

.contact h2 {
  margin-bottom: 1rem;
}

.contact p {
  color: var(--secondary);
  font-size: 1rem;
  margin-bottom: 2rem;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--void);
  background: var(--bright);
  padding: 0.75rem 2rem;
  border-radius: 6px;
  transition: all 0.25s ease;
  font-weight: 500;
}

.contact-link:hover {
  background: var(--vivid);
  color: var(--void);
  text-shadow: none;
}

/* --- Footer --- */
.footer {
  padding: 3rem 0;
  border-top: 1px solid var(--border-dim);
}

.footer-content {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.footer-logo {
  width: 64px;
  height: 64px;
  border-radius: 8px;
}

.footer-details {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ghost);
  letter-spacing: 0.02em;
  line-height: 1.8;
}

.footer-details a {
  color: var(--muted);
}

.footer-details a:hover {
  color: var(--bright);
  text-shadow: none;
}

.footer-copy {
  text-align: center;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-dim);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ghost);
}

/* ============================================================
   ARTICLES PAGE
   ============================================================ */

.page-header {
  padding: 8rem 0 3rem;
}

.page-header h1 {
  font-size: 2.2rem;
}

.page-header p {
  color: var(--secondary);
  margin-top: 1rem;
  max-width: 560px;
}

.articles-list {
  padding: 2rem 0 6rem;
}

.article-item {
  display: block;
  padding: 2rem 0;
  border-bottom: 1px solid var(--border-dim);
  transition: border-color 0.2s ease;
}

.article-item:first-child {
  border-top: 1px solid var(--border-dim);
}

.article-item:hover {
  border-color: var(--border-soft);
}

.article-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ghost);
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
  display: block;
}

.article-item h3 {
  color: var(--heading);
  margin-bottom: 0.6rem;
  transition: color 0.2s ease;
}

.article-item:hover h3 {
  color: var(--bright);
}

.article-excerpt {
  color: var(--secondary);
  font-size: 0.9rem;
  line-height: 1.7;
}

.articles-empty {
  padding: 4rem 0;
  text-align: center;
  color: var(--ghost);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

/* ============================================================
   SINGLE ARTICLE PAGE
   ============================================================ */

.article-header {
  padding: 8rem 0 2rem;
}

.article-header h1 {
  font-size: 2.2rem;
  max-width: 700px;
}

.article-meta {
  margin-top: 1rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ghost);
  letter-spacing: 0.03em;
}

.article-body {
  padding: 2rem 0 6rem;
  max-width: 680px;
}

.article-body p {
  font-size: 1rem;
  margin-bottom: 1.5rem;
  line-height: 1.85;
}

.article-body h2 {
  font-size: 1.5rem;
  margin-top: 3rem;
  margin-bottom: 1rem;
}

.article-body h3 {
  font-size: 1.15rem;
  margin-top: 2.5rem;
  margin-bottom: 0.8rem;
}

.article-body blockquote {
  border-left: 2px solid var(--border-soft);
  padding-left: 1.5rem;
  margin: 2rem 0;
  color: var(--muted);
  font-style: italic;
}

.article-body code {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  background: var(--deep);
  padding: 0.15rem 0.4rem;
  border-radius: 3px;
  border: 1px solid var(--border-dim);
  color: var(--bright);
}

.article-body pre {
  background: var(--deep);
  border: 1px solid var(--border-dim);
  border-radius: 6px;
  padding: 1.5rem;
  overflow-x: auto;
  margin: 2rem 0;
}

.article-body pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.8rem;
  line-height: 1.6;
}

.article-back {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 2rem;
  transition: color 0.2s ease;
}

.article-back:hover {
  color: var(--bright);
  text-shadow: none;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 768px) {
  html { font-size: 15px; }
  .container { padding: 0 1.5rem; }
  section { padding: 4rem 0; }
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  .hero { padding: 7rem 0 4rem; }
  .hero-logo { width: 150px; height: 150px; }

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

  .about-photo {
    width: 200px;
    height: 250px;
  }

  .values-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(8, 15, 8, 0.98);
    flex-direction: column;
    padding: 1.5rem 2rem;
    gap: 1.2rem;
    border-bottom: 1px solid var(--border-dim);
  }

  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }

  .footer-content { flex-direction: column; align-items: flex-start; }

  .page-header { padding: 7rem 0 2rem; }
  .article-header { padding: 7rem 0 1.5rem; }
}

@media (max-width: 480px) {
  html { font-size: 14px; }
  .container { padding: 0 1.25rem; }
  .hero { padding: 6rem 0 3rem; }
  .service-card { padding: 1.75rem; }
}