/* ============================================================
   NOTCHAI — styles.css
   Design tokens, layout, components, responsive
   ============================================================ */

/* --- Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* --- Tokens --- */
:root {
  --color-bg:          #0d0d0d;
  --color-surface:     #111111;
  --color-surface-2:   #161616;
  --color-border:      #222222;
  --color-text:        #f0f0f0;
  --color-text-muted:  #888888;
  --color-accent:      #166616;
  --color-accent-light:#1f8c1f;
  --color-accent-glow: rgba(22,102,22,.25);

  --font-sans:   'Outfit', 'Helvetica Neue', Arial, sans-serif;
  --font-mono:   'JetBrains Mono', 'Fira Code', monospace;

  --space-xs:  .25rem;
  --space-sm:  .5rem;
  --space-md:  1rem;
  --space-lg:  2rem;
  --space-xl:  4rem;
  --space-2xl: 6rem;

  --radius-sm: .375rem;
  --radius-md: .75rem;
  --radius-lg: 1.25rem;

  --transition: .2s ease;
  --max-w: 1100px;
  --header-h: 64px;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-weight: 400;
  line-height: 1.6;
  min-height: 100vh;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }

/* --- Skip link --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  background: var(--color-accent);
  color: #fff;
  padding: .5rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  z-index: 9999;
  transition: top var(--transition);
}
.skip-link:focus { top: var(--space-md); }

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: rgba(13,13,13,.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  z-index: 100;
}
.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}
.logo { display: flex; align-items: center; }
.header-logo-img { height: 32px; width: auto; }

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}
.nav a {
  font-size: .9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition);
  letter-spacing: .02em;
}
.nav a:hover,
.nav a.active { color: var(--color-text); }
.nav a[aria-current="page"] { color: var(--color-accent-light); }

/* Hamburger (mobile) */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: .5rem;
  border-radius: var(--radius-sm);
}
.nav-toggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: var(--header-h) var(--space-lg) var(--space-2xl);
  overflow: hidden;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}
.hero-logo-img {
  height: 52px;
  width: auto;
  margin: 0 auto var(--space-lg);
}
.hero-title {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -.03em;
  margin-bottom: var(--space-lg);
}
.hero-title .accent { color: var(--color-accent-light); }
.hero-desc {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
  max-width: 580px;
  margin-left: auto;
  margin-right: auto;
}
.hero-desc-2 {
  font-size: clamp(.9rem, 2vw, 1.05rem);
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
  font-family: var(--font-mono);
  opacity: .7;
}
.hero-ctas {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* Grid background */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: .35;
  z-index: 0;
}
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 50% at 50% 40%, rgba(22,102,22,.15) 0%, transparent 70%);
  z-index: 1;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .75rem 1.75rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: .95rem;
  letter-spacing: .01em;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border: 1px solid var(--color-accent);
}
.btn-primary:hover {
  background: var(--color-accent-light);
  border-color: var(--color-accent-light);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px var(--color-accent-glow);
}
.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-secondary:hover {
  border-color: var(--color-text-muted);
  transform: translateY(-1px);
}
.btn-outline {
  background: transparent;
  color: var(--color-accent-light);
  border: 1px solid var(--color-accent);
}
.btn-outline:hover {
  background: var(--color-accent-glow);
  transform: translateY(-1px);
}

/* ============================================================
   TECH PARTNERS STRIP
   ============================================================ */
.ecosystem {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-lg) 0;
  overflow: hidden;
}
.ecosystem-label {
  text-align: center;
  font-size: .78rem;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: .12em;
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}
.ecosystem-track-wrap {
  overflow: hidden;
  position: relative;
}
.ecosystem-track-wrap::before,
.ecosystem-track-wrap::after {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  width: 80px;
  z-index: 2;
}
.ecosystem-track-wrap::before { left: 0; background: linear-gradient(to right, var(--color-bg), transparent); }
.ecosystem-track-wrap::after  { right: 0; background: linear-gradient(to left, var(--color-bg), transparent); }
.ecosystem-track {
  display: flex;
  gap: var(--space-xl);
  animation: scroll-track 28s linear infinite;
  width: max-content;
}
.ecosystem-track:hover { animation-play-state: paused; }
@keyframes scroll-track {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
.ecosystem-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  white-space: nowrap;
  opacity: .6;
  transition: opacity var(--transition);
}
.ecosystem-item:hover { opacity: 1; }
.ecosystem-logo-svg {
  height: 32px;
  width: auto;
}
.ecosystem-name {
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--color-text-muted);
  letter-spacing: .04em;
}

/* ============================================================
   SECTIONS (shared)
   ============================================================ */
.section {
  padding: var(--space-2xl) var(--space-lg);
}
.section-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}
.section-label {
  font-family: var(--font-mono);
  font-size: .78rem;
  font-weight: 500;
  color: var(--color-accent-light);
  letter-spacing: .12em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.15;
  margin-bottom: var(--space-md);
}
.section-desc {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  max-width: 620px;
  line-height: 1.75;
}
.section-desc + .section-desc { margin-top: var(--space-md); }

/* ============================================================
   ABOUT
   ============================================================ */
.section-about {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
  margin-top: var(--space-xl);
}
.about-stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}
.about-stat-num {
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-accent-light);
  line-height: 1;
  font-family: var(--font-mono);
}
.about-stat-label {
  font-size: .85rem;
  color: var(--color-text-muted);
  letter-spacing: .05em;
  text-transform: uppercase;
}
.about-stats {
  display: flex;
  gap: var(--space-xl);
  margin-top: var(--space-xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
}

/* ============================================================
   SERVICES
   ============================================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-xl);
}
.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.service-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0,0,0,.4);
}
.service-card:hover::before { opacity: 1; }
.service-icon {
  font-size: 1.6rem;
  margin-bottom: var(--space-md);
  color: var(--color-accent-light);
}
.service-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}
.service-desc {
  font-size: .9rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}
.services-cta {
  margin-top: var(--space-xl);
}

/* ============================================================
   WHY US
   ============================================================ */
.section-why {
  background: var(--color-surface-2);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}
.why-card {
  padding: var(--space-lg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  transition: border-color var(--transition);
}
.why-card:hover { border-color: var(--color-accent); }
.why-num {
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--color-accent-light);
  letter-spacing: .1em;
  margin-bottom: var(--space-md);
}
.why-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}
.why-desc {
  font-size: .9rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ============================================================
   CAREERS
   ============================================================ */
.section-careers {
  text-align: center;
}
.careers-inner {
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================================
   CONTACT
   ============================================================ */
.section-contact {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  text-align: center;
}
.contact-inner {
  max-width: 500px;
  margin: 0 auto;
}
.contact-email {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  margin-top: var(--space-xl);
  padding: 1rem 2rem;
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  transition: all var(--transition);
}
.contact-email:hover {
  background: var(--color-accent-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--color-accent-glow);
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}
.footer-logo-img { height: 28px; width: auto; opacity: .7; }
.footer-tagline {
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--color-text-muted);
  letter-spacing: .08em;
}
.footer-links {
  display: flex;
  gap: var(--space-md);
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
}
.footer-links a {
  font-size: .85rem;
  color: var(--color-text-muted);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--color-text); }
.footer-sep { color: var(--color-border); }
.footer-copy {
  font-size: .8rem;
  color: var(--color-text-muted);
  opacity: .5;
}

/* ============================================================
   BLOG PAGE
   ============================================================ */
.blog-hero {
  padding: calc(var(--header-h) + var(--space-xl)) var(--space-lg) var(--space-xl);
  border-bottom: 1px solid var(--color-border);
}
.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}
.blog-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  transition: border-color var(--transition), transform var(--transition);
}
.blog-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}
.blog-tag {
  display: inline-block;
  font-size: .72rem;
  font-weight: 600;
  font-family: var(--font-mono);
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--color-accent-light);
  background: var(--color-accent-glow);
  padding: .2rem .6rem;
  border-radius: var(--radius-sm);
  width: fit-content;
}
.blog-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.35;
}
.blog-card-title a {
  color: inherit;
  transition: color var(--transition);
}
.blog-card-title a:hover { color: var(--color-accent-light); }
.blog-card-date {
  font-size: .78rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
}
.blog-card-excerpt {
  font-size: .9rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  flex: 1;
}
.blog-card-link {
  font-size: .85rem;
  font-weight: 600;
  color: var(--color-accent-light);
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  margin-top: var(--space-sm);
  transition: gap var(--transition);
}
.blog-card-link:hover { gap: .6rem; }

/* ============================================================
   LEGAL PAGES
   ============================================================ */
.legal-page {
  padding: calc(var(--header-h) + var(--space-xl)) var(--space-lg) var(--space-2xl);
}
.legal-inner {
  max-width: 720px;
  margin: 0 auto;
}
.legal-inner h1 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}
.legal-inner .last-updated {
  font-size: .85rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
  font-family: var(--font-mono);
}
.legal-inner h2 {
  font-size: 1.2rem;
  font-weight: 700;
  margin: var(--space-xl) 0 var(--space-sm);
  color: var(--color-text);
}
.legal-inner p {
  font-size: .95rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: var(--space-md);
}
.legal-inner ul {
  list-style: disc;
  padding-left: 1.5rem;
  color: var(--color-text-muted);
  font-size: .95rem;
  line-height: 1.8;
  margin-bottom: var(--space-md);
}
.legal-inner a {
  color: var(--color-accent-light);
  text-decoration: underline;
}

/* ============================================================
   SCREEN-READER ONLY
   ============================================================ */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border-width: 0;
}

/* ============================================================
   TRAINING SECTION
   ============================================================ */
.section-training {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.training-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-xl);
}
.training-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: border-color var(--transition), transform var(--transition);
}
.training-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}
.training-icon {
  font-size: 1.4rem;
  color: var(--color-accent-light);
  margin-bottom: var(--space-md);
}
.training-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}
.training-desc {
  font-size: .9rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ============================================================
   CAREERS / INTERNSHIP SECTION
   ============================================================ */
.internship-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-lg);
  text-align: left;
}
.internship-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: border-color var(--transition);
}
.internship-card:hover { border-color: var(--color-accent); }
.internship-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}
.internship-desc {
  font-size: .9rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}
.internship-perks {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: .4rem;
}
.internship-perks li {
  font-size: .88rem;
  color: var(--color-text-muted);
  padding-left: 1.2rem;
  position: relative;
}
.internship-perks li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-accent-light);
  font-size: .8rem;
  font-weight: 700;
}

/* ============================================================
   BLOG ARTICLE PAGE
   ============================================================ */
.blog-article-page {
  padding: calc(var(--header-h) + var(--space-xl)) var(--space-lg) var(--space-2xl);
}
.blog-article-inner {
  max-width: 740px;
  margin: 0 auto;
}
.blog-article-back {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-size: .85rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
  transition: color var(--transition);
}
.blog-article-back:hover { color: var(--color-accent-light); }
.blog-article-tag {
  display: inline-block;
  font-size: .72rem;
  font-weight: 600;
  font-family: var(--font-mono);
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--color-accent-light);
  background: var(--color-accent-glow);
  padding: .2rem .6rem;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-md);
}
.blog-article-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.15;
  margin-bottom: var(--space-md);
}
.blog-article-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--color-text-muted);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-xl);
}
.blog-article-body {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--color-text-muted);
}
.blog-article-body h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  margin: var(--space-xl) 0 var(--space-md);
  letter-spacing: -.01em;
}
.blog-article-body h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text);
  margin: var(--space-lg) 0 var(--space-sm);
}
.blog-article-body p { margin-bottom: var(--space-md); }
.blog-article-body ul,
.blog-article-body ol {
  padding-left: 1.5rem;
  margin-bottom: var(--space-md);
}
.blog-article-body li { margin-bottom: .4rem; }
.blog-article-body ul { list-style: disc; }
.blog-article-body ol { list-style: decimal; }
.blog-article-body strong { color: var(--color-text); font-weight: 600; }
.blog-article-body code {
  font-family: var(--font-mono);
  font-size: .88em;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: .25rem;
  padding: .1em .4em;
  color: var(--color-accent-light);
}
.blog-article-body blockquote {
  border-left: 3px solid var(--color-accent);
  padding-left: var(--space-lg);
  margin: var(--space-lg) 0;
  color: var(--color-text-muted);
  font-style: italic;
}
.blog-article-footer {
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .training-grid { grid-template-columns: 1fr; }
  .internship-grid { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  :root { --space-lg: 1.25rem; --space-xl: 2.5rem; --space-2xl: 4rem; }
  .header-inner { padding: 0 1rem; }
  .nav { display: none; }
  .nav.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-lg);
    gap: var(--space-lg);
    z-index: 99;
  }
  .nav-toggle { display: flex; }
  .hero-logo-img { height: 38px; }
  .hero-title { font-size: 2rem; }
  .about-stats { flex-direction: column; gap: var(--space-lg); }
}