/* Cybersecurity Academy — editorial theme (prashantdangi.com DNA) */

:root {
  --bg: #ffffff;
  --fg: #0b0b0b;
  --muted: #6b6b6b;
  --line: rgba(11,11,11,.12);
  --line-strong: rgba(11,11,11,.26);
  --card: #ffffff;
  --card-alt: #fafafa;
  --sel: #0b0b0b;
  --sel-fg: #ffffff;
  --accent: #1a7f4b;
  --discord: #5865f2;
  --discord-dark: #4752c4;
  --shadow: 0 1px 0 rgba(11,11,11,.04), 0 18px 40px -24px rgba(11,11,11,.28);
}
:root[data-theme="dark"] {
  --bg: #0a0a0a;
  --fg: #f2f1ee;
  --muted: #8f8f8f;
  --line: rgba(242,241,238,.16);
  --line-strong: rgba(242,241,238,.34);
  --card: #121212;
  --card-alt: #141414;
  --sel: #f2f1ee;
  --sel-fg: #0a0a0a;
  --accent: #3ddc97;
  --discord: #5865f2;
  --discord-dark: #6b76f5;
  --shadow: 0 1px 0 rgba(255,255,255,.04), 0 22px 50px -26px rgba(0,0,0,.9);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background .4s ease, color .4s ease;
}

::selection { background: var(--sel); color: var(--sel-fg); }

.grain {
  position: fixed;
  inset: -50%;
  z-index: 9999;
  pointer-events: none;
  opacity: .04;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
:root[data-theme="dark"] .grain { opacity: .06; }

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

.promo-bar {
  position: relative;
  z-index: 120;
  display: flex;
  justify-content: center;
  padding: 14px 16px 6px;
  pointer-events: none;
}
.promo-pill {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: #f4f4f5;
  background: #33343a;
  border: 1px solid rgba(255,255,255,.08);
  box-shadow: 0 10px 30px -16px rgba(11,11,11,.4);
  transition: transform .25s cubic-bezier(.2,.7,.2,1), background .25s;
}
.promo-pill:hover { transform: translateY(-2px); background: #3d3e45; }
:root[data-theme="dark"] .promo-pill { background: #26272c; }
.promo-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #2ecc71;
  animation: promo-pulse 2s infinite;
}
@keyframes promo-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(46,204,113,.55); }
  70%  { box-shadow: 0 0 0 7px rgba(46,204,113,0); }
  100% { box-shadow: 0 0 0 0 rgba(46,204,113,0); }
}
.promo-arrow { transition: transform .3s; }
.promo-pill:hover .promo-arrow { transform: translateX(4px); }

.site-head {
  position: sticky;
  top: 0;
  z-index: 100;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 16px clamp(20px, 5vw, 56px);
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(14px) saturate(1.4);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  border-bottom: 1px solid var(--line);
}
.site-head .wordmark { justify-self: start; }
.icon-btn { justify-self: end; }
.wordmark {
  font-family: "JetBrains Mono", monospace;
  font-weight: 500;
  font-size: 15px;
  letter-spacing: -0.02em;
}
.wordmark span { opacity: .55; }
.blink { font-style: normal; animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

.site-head nav.nav-center {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(16px, 3vw, 36px);
}
.site-head nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
  position: relative;
  padding: 4px 0;
}
.site-head nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--fg);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .3s cubic-bezier(.2,.7,.2,1);
}
.site-head nav a:hover,
.site-head nav a[aria-current="page"] { color: var(--fg); }
.site-head nav a:hover::after,
.site-head nav a[aria-current="page"]::after {
  transform: scaleX(1);
  transform-origin: left;
}

.icon-btn {
  display: grid;
  place-items: center;
  width: 40px; height: 40px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: transparent;
  color: var(--fg);
  cursor: pointer;
  transition: border-color .25s, transform .25s;
}
.icon-btn:hover { border-color: var(--fg); transform: rotate(-18deg); }
.icon-btn svg { grid-area: 1 / 1; transition: opacity .3s, transform .4s; }
.icon-btn .ico-moon { opacity: 0; transform: scale(.4) rotate(-40deg); }
.icon-btn .ico-sun  { opacity: 1; transform: scale(1); }
:root[data-theme="dark"] .icon-btn .ico-sun  { opacity: 0; transform: scale(.4) rotate(40deg); }
:root[data-theme="dark"] .icon-btn .ico-moon { opacity: 1; transform: scale(1); }

main {
  max-width: 980px;
  margin: 0 auto;
  padding: clamp(8px, 2vw, 22px) clamp(20px, 5vw, 40px) 40px;
}
.block { padding: clamp(40px, 8vw, 88px) 0; border-bottom: 1px solid var(--line); }
.block:last-of-type { border-bottom: 0; }

.block-label {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 30px;
}
.block-label .idx {
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 3px 9px;
  color: var(--fg);
}
.center-label { justify-content: center; }
.center .lede, .center-lede { margin-left: auto; margin-right: auto; text-align: center; }

[data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .8s ease, transform .8s cubic-bezier(.2,.7,.2,1);
}
[data-reveal].in { opacity: 1; transform: none; }

.huge {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 600;
  font-size: clamp(2.4rem, 8.5vw, 5rem);
  line-height: .96;
  letter-spacing: -0.03em;
  margin: 0 0 24px;
}
.huge em {
  font-family: "Instrument Serif", Georgia, serif;
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.01em;
}
.kicker {
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 18px;
}
.lede {
  font-size: clamp(1.05rem, 2.4vw, 1.3rem);
  color: var(--muted);
  max-width: 46ch;
  margin: 0 0 34px;
}
.hero-brand {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: clamp(1.15rem, 3vw, 1.45rem);
  letter-spacing: -0.03em;
  margin: 0 0 10px;
}
.hero-brand span { color: var(--accent); }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}
.hero-actions.center { justify-content: center; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--fg);
  color: var(--bg);
  padding: 15px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  border: 1px solid var(--fg);
  position: relative;
  overflow: hidden;
  transition: transform .25s cubic-bezier(.2,.7,.2,1);
}
.btn b { transition: transform .3s; }
.btn::before {
  content: "";
  position: absolute; inset: 0;
  background: var(--bg);
  transform: translateY(101%);
  transition: transform .35s cubic-bezier(.4,0,.2,1);
  z-index: 0;
}
.btn span, .btn b { position: relative; z-index: 1; }
.btn:hover { transform: translateY(-2px); color: var(--fg); }
.btn:hover::before { transform: translateY(0); }
.btn:hover b { transform: translateX(5px); }
.btn.big { padding: 18px 34px; font-size: 16px; }
.btn.ghost { background: transparent; color: var(--fg); }
.btn.ghost::before { background: var(--fg); }
.btn.ghost:hover { color: var(--bg); }
.btn.sm { padding: 11px 18px; font-size: 13px; }

.link-arrow {
  font-family: "JetBrains Mono", monospace;
  font-size: 14px;
  color: var(--fg);
  display: inline-flex;
  gap: 8px;
}
.link-arrow b { transition: transform .3s; }
.link-arrow:hover b { transform: translateX(6px); }

.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  margin-top: 48px;
}
.stat {
  background: var(--card);
  padding: 28px 22px;
  text-align: center;
}
.stat strong {
  display: block;
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  letter-spacing: -0.03em;
  margin-bottom: 4px;
}
.stat span {
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: .06em;
  text-transform: uppercase;
}

.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 36px;
}
.course-card {
  display: flex;
  flex-direction: column;
  padding: 26px 24px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--card);
  transition: transform .35s cubic-bezier(.2,.7,.2,1), border-color .35s, box-shadow .35s;
}
.course-card:hover {
  transform: translateY(-5px);
  border-color: var(--fg);
  box-shadow: var(--shadow);
}
.cc-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
}
.cc-tag {
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 3px 10px;
  color: var(--fg);
}
.cc-title {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 600;
  font-size: 1.28rem;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 10px;
}
.cc-sum {
  color: var(--muted);
  font-size: .98rem;
  margin: 0 0 22px;
  flex: 1;
}
.cc-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.cc-meta {
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  color: var(--muted);
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 28px 0 8px;
}
.filter-pill {
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  letter-spacing: .04em;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: border-color .2s, color .2s, background .2s;
}
.filter-pill:hover { color: var(--fg); border-color: var(--fg); }
.filter-pill.active {
  background: var(--fg);
  color: var(--bg);
  border-color: var(--fg);
}

.loop {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  margin-top: 36px;
}
.loop-item {
  background: var(--card);
  padding: 30px 26px;
  transition: background .3s, color .3s;
}
.loop-item:hover { background: var(--fg); color: var(--bg); }
.loop-item:hover p { color: color-mix(in srgb, var(--bg) 70%, var(--fg)); }
.loop-item:hover .skill-no { color: var(--bg); }
.skill-no {
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  color: var(--muted);
  display: block;
  margin-bottom: 14px;
}
.loop-item h3 {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.25rem;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}
.loop-item p { font-size: .96rem; color: var(--muted); margin: 0; }

.price-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 36px;
  max-width: 520px;
}
.price-card {
  border: 1px solid var(--line-strong);
  border-radius: 20px;
  padding: 34px 30px;
  background: var(--card);
  box-shadow: var(--shadow);
}
.price-card.featured { border-color: var(--fg); }
.price-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 12px;
}
.price-amount {
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(2.4rem, 6vw, 3.4rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  margin: 0 0 6px;
  line-height: 1;
}
.price-amount small {
  font-size: .4em;
  font-weight: 500;
  color: var(--muted);
}
.price-note {
  color: var(--muted);
  margin: 0 0 24px;
  font-size: .98rem;
}
.price-list {
  list-style: none;
  padding: 0;
  margin: 0 0 28px;
}
.price-list li {
  padding: 10px 0;
  border-top: 1px solid var(--line);
  font-size: .98rem;
}
.price-list li:first-child { border-top: 0; }
.price-list li::before {
  content: "→ ";
  font-family: "JetBrains Mono", monospace;
  color: var(--accent);
}

.faq { margin-top: 28px; }
.faq details {
  border-bottom: 1px solid var(--line);
  padding: 18px 0;
}
.faq summary {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 600;
  font-size: 1.1rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-family: "JetBrains Mono", monospace;
  color: var(--muted);
}
.faq details[open] summary::after { content: "−"; }
.faq p {
  color: var(--muted);
  margin: 12px 0 0;
  max-width: 54ch;
}

.site-foot {
  max-width: 980px;
  margin: 0 auto;
  padding: 40px clamp(20px, 5vw, 40px) 64px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
}
.foot-mark {
  font-family: "JetBrains Mono", monospace;
  font-size: 14px;
}
.foot-social { display: flex; gap: 14px; align-items: center; }
.foot-social a {
  opacity: .7;
  transition: opacity .2s, transform .2s;
}
.foot-social a:hover { opacity: 1; transform: translateY(-2px); }
.foot-meta {
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  color: var(--muted);
  margin: 0;
  width: 100%;
}

/* Centered hero / pricing / courses headers */
.hero.center,
.block.center,
.section-center {
  text-align: center;
}
.hero.center .hero-brand,
.hero.center .kicker,
.hero.center .huge,
.hero.center .lede,
.block.center .huge,
.block.center .lede {
  margin-left: auto;
  margin-right: auto;
}
.hero.center .block-label,
.block.center .block-label {
  justify-content: center;
}
.hero.center .hero-actions,
.block.center .hero-actions {
  justify-content: center;
}
.price-grid.center,
.block.center .price-grid {
  margin-left: auto;
  margin-right: auto;
}
.block.center .faq {
  text-align: left;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}
.block.center .filter-row {
  justify-content: center;
}
.block.center .course-grid,
.hero.center + .block .course-grid {
  text-align: left;
}

.video-wrap {
  width: min(100%, 860px);
  margin: 0 auto 36px;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  background: #000;
  aspect-ratio: 16 / 9;
}
.video-wrap iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

@media (max-width: 720px) {
  .site-head {
    grid-template-columns: 1fr auto;
    gap: 10px;
  }
  .site-head nav.nav-center {
    grid-column: 1 / -1;
    order: 3;
    justify-content: flex-start;
    overflow-x: auto;
    gap: 18px;
    padding-bottom: 4px;
  }
  .stat-row { grid-template-columns: 1fr; }
  .loop { grid-template-columns: 1fr; }
  .huge { font-size: clamp(2.2rem, 11vw, 3.4rem); }
}