/* ===== DevEdu marketing site ===== */
:root {
  --pink: #f706b0;
  --violet: #6d4aff;
  --violet-600: #5a37e8;
  --magenta: #b14bf4;
  --ink: #15121f;
  --ink-2: #322c45;
  --muted: #6f6a85;
  --line: #ebe7f5;
  --surface: #ffffff;
  --bg: #f7f5fd;
  --bg-tint: #efeafb;
  --red: #e5484d;
  --green: #16a34a;
  --grad: linear-gradient(120deg, var(--violet) 0%, var(--magenta) 50%, var(--pink) 100%);
  /* Match the web app's type system */
  --font: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', 'Inconsolata', ui-monospace, monospace;
  --shadow: 0 10px 30px rgba(24, 18, 48, 0.10);
  --shadow-lg: 0 24px 60px rgba(24, 18, 48, 0.18);
  --radius: 16px;
  --radius-lg: 24px;
  --maxw: 1140px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--violet-600); text-decoration: none; }
h1, h2, h3 { line-height: 1.15; margin: 0 0 .5rem; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); font-weight: 800; }
h2 { font-size: clamp(1.7rem, 3.5vw, 2.5rem); font-weight: 800; }
h3 { font-size: 1.25rem; font-weight: 700; }
p { margin: 0 0 1rem; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 1.25rem; }
.narrow { max-width: 820px; }
.center { text-align: center; }
.muted { color: var(--muted); }
.big { font-size: 1.15rem; }
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.eyebrow {
  display: inline-block; font-size: .8rem; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase; color: var(--violet-600); margin-bottom: .6rem;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  font-family: inherit; font-weight: 600; font-size: .95rem; cursor: pointer;
  padding: .6rem 1.1rem; border-radius: 999px; border: 1px solid transparent;
  transition: transform .12s ease, box-shadow .2s ease, background .2s ease;
  white-space: nowrap;
}
.btn--lg { padding: .85rem 1.6rem; font-size: 1.05rem; }
.btn--grad { background: var(--grad); color: #fff; box-shadow: 0 6px 18px rgba(247, 6, 176, .28); }
.btn--grad:hover { transform: translateY(-2px); box-shadow: 0 12px 26px rgba(247, 6, 176, .34); }
.btn--ghost { background: #fff; color: var(--ink); border-color: var(--line); }
.btn--ghost:hover { border-color: var(--violet); color: var(--violet-600); transform: translateY(-2px); }

/* ===== Brand wordmark (matches the web app: mono "Dev" + Lobster "Edu") ===== */
.brand { font-size: 1.7rem; letter-spacing: -0.01em; }
.brand__dev { font-family: var(--mono); font-weight: 800; color: var(--ink); }
.brand__edu { font-family: "Lobster", cursive; font-weight: 400; color: var(--pink); }
.brand--light .brand__dev { color: #fff; }

/* ===== Nav ===== */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .82); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.nav__links { display: flex; align-items: center; gap: 1.4rem; }
.nav__links a:not(.btn) { position: relative; color: var(--ink-2); font-weight: 500; font-size: .95rem; padding-bottom: 6px; }
.nav__links a:not(.btn)::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 5px; width: 100%;
  border-radius: 5px; background: var(--pink); box-shadow: 0 2px 10px rgba(247,6,176,.45);
  transform: scaleX(0); transform-origin: left; opacity: 0;
  transition: transform .28s cubic-bezier(.4,0,.2,1), opacity .28s ease;
}
.nav__links a:not(.btn):hover { color: var(--violet-600); }
.nav__links a:not(.btn):hover::after { transform: scaleX(1); opacity: .5; }
.nav__links a:not(.btn).active { color: var(--ink); font-weight: 600; }
.nav__links a:not(.btn).active::after { transform: scaleX(1); opacity: 1; }
/* The brand wordmark gets the same hot-pink bar when you're at the top of the page. */
.nav .brand { position: relative; padding-bottom: 6px; }
.nav .brand::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 5px; width: 100%;
  border-radius: 5px; background: var(--pink); box-shadow: 0 2px 10px rgba(247,6,176,.45);
  transform: scaleX(0); transform-origin: left; opacity: 0;
  transition: transform .28s cubic-bezier(.4,0,.2,1), opacity .28s ease;
}
.nav .brand.active::after { transform: scaleX(1); opacity: 1; }
.nav__toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav__toggle span { width: 24px; height: 2px; background: var(--ink); border-radius: 2px; transition: .2s; }

/* ===== Hero ===== */
.hero { position: relative; overflow: hidden; padding: clamp(3rem, 7vw, 6rem) 0 clamp(3rem, 6vw, 5rem); }
.hero::before {
  content: ""; position: absolute; inset: -40% -20% auto auto; width: 60vw; height: 60vw;
  background: radial-gradient(closest-side, rgba(177, 75, 244, .22), transparent 70%); z-index: 0;
}
.hero::after {
  content: ""; position: absolute; left: -15%; bottom: -30%; width: 50vw; height: 50vw;
  background: radial-gradient(closest-side, rgba(247, 6, 176, .16), transparent 70%); z-index: 0;
}
.hero__inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr .95fr; gap: 3rem; align-items: center; }
.hero__copy .lede { font-size: 1.2rem; color: var(--ink-2); max-width: 34ch; }
.hero__cta { display: flex; gap: .8rem; flex-wrap: wrap; margin: 1.4rem 0 .8rem; }
.hero__note { color: var(--muted); font-size: .9rem; }

/* Hero mockup — Linux terminal / editor window */
.window {
  background: #11131c; color: #d7dcec; border-radius: 12px;
  box-shadow: var(--shadow-lg); overflow: hidden;
  border: 1px solid rgba(255,255,255,.08);
  transform: rotate(1.2deg);
}
/* thin terminal-accent strip across the very top */
.window::before { content: ""; display: block; height: 2px; background: linear-gradient(90deg, #6db3ff, #b14bf4, #f706b0); }
.window__bar { display: flex; align-items: center; gap: .55rem; padding: .55rem .8rem; background: #0c0e15; border-bottom: 1px solid rgba(255,255,255,.06); font-family: var(--mono); }
.window__tab { display: inline-flex; align-items: center; gap: .45rem; font-size: .78rem; color: #e6e9f2; background: rgba(255,255,255,.05); padding: .28rem .65rem; border-radius: 7px 7px 0 0; border-bottom: 2px solid #f706b0; }
.window__tab i { color: #6db3ff; }
.window__host { margin-left: auto; font-size: .73rem; color: #6b7186; letter-spacing: .01em; }
.window__ctrls { display: inline-flex; gap: .4rem; }
.window__ctrls b {
  width: 19px; height: 19px; border-radius: 5px; background: rgba(255,255,255,.06);
  display: inline-flex; align-items: center; justify-content: center; color: #9aa0b4; font-size: .68rem; line-height: 1;
}
.window__ctrls .min::before { content: "\2013"; }   /* – */
.window__ctrls .max::before { content: "\25A1"; }   /* □ */
.window__ctrls .cls::before { content: "\2715"; }   /* ✕ */
.window__ctrls .cls { background: rgba(255,107,107,.16); color: #ff8585; }
.window__code { margin: 0; padding: 1.1rem 1.3rem; font-family: var(--mono); font-size: .92rem; line-height: 1.75; overflow-x: auto; }
.window__code .c-key { color: #b96bff; } .window__code .c-str { color: #ff5cc2; } .window__code .c-fn { color: #6db3ff; } .window__code .c-num { color: #b96bff; }
.window__term { padding: .85rem 1.3rem 1.05rem; font-family: var(--mono); font-size: .84rem; background: #0c0e15; border-top: 1px solid rgba(255,255,255,.06); }
.window__cmd { color: #d7dcec; }
.window__cmd .u { color: #6db3ff; } .window__cmd .p { color: #b96bff; }
.window__out { margin-top: .3rem; color: #8b91a7; }
.window__out .ok { color: #ff5cc2; }
.cursor { display: inline-block; width: 8px; height: 1.05em; background: #f706b0; margin-left: .35rem; vertical-align: text-bottom; animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* ===== Sections ===== */
.section { padding: clamp(3rem, 6vw, 5rem) 0; }
.section--tint { background: var(--bg-tint); }
.section__head { margin-bottom: 2.5rem; }

/* Intro: problem → solution */
.intro { background: var(--bg-tint); }
.intro__grid { display: grid; grid-template-columns: .95fr 1.05fr; gap: 3rem; align-items: center; }
.intro__copy h2 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); margin-bottom: 1rem; }
.intro__copy p { color: var(--ink-2); font-size: 1.12rem; }
.intro__copy p:last-child { margin-bottom: 0; }
.intro__cards { display: grid; gap: 1rem; }
.vs { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 1.3rem 1.45rem; box-shadow: var(--shadow); }
.vs--bad { border-color: #f4d0d2; }
.vs--good { border-color: #c7ecd3; box-shadow: 0 16px 36px rgba(22, 163, 74, .12); }
.vs__tag { display: inline-block; font-size: .7rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; padding: .22rem .65rem; border-radius: 999px; margin-bottom: .9rem; }
.vs--bad .vs__tag { background: #fdecec; color: var(--red); }
.vs--good .vs__tag { background: #e7f6ec; color: var(--green); }
.vs__list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: .55rem; }
.vs__list li { position: relative; padding-left: 1.7rem; color: var(--ink-2); font-size: .98rem; }
.vs__list li::before { position: absolute; left: 0; top: .1rem; font-family: "Font Awesome 6 Free"; font-weight: 900; font-size: .82rem; }
.vs--bad .vs__list li::before { content: "\f00d"; color: var(--red); }
.vs--good .vs__list li::before { content: "\f00c"; color: var(--green); }

/* Grid + cards */
.grid { display: grid; gap: 1.25rem; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.6rem; box-shadow: var(--shadow); transition: transform .15s ease, box-shadow .2s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card__icon {
  width: 54px; height: 54px; border-radius: 15px; display: grid; place-items: center;
  background: var(--grad); color: #fff; font-size: 1.45rem; margin-bottom: 1.1rem;
  box-shadow: 0 10px 22px rgba(247, 6, 176, .28);
  transition: transform .22s ease;
}
.card:hover .card__icon { transform: translateY(-2px) rotate(-5deg) scale(1.06); }
.card p { color: var(--muted); margin: 0; }

/* Steps */
.steps .step {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.8rem 1.6rem; box-shadow: var(--shadow); position: relative;
}
.step__num {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  font-weight: 800; font-size: 1.2rem; color: #fff; background: var(--grad); margin-bottom: 1rem;
}
.step p { color: var(--muted); margin: 0; }

/* FAQ */
.faq { display: flex; flex-direction: column; gap: .75rem; }
.faq__item {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 0 1.3rem;
  box-shadow: var(--shadow);
}
.faq__item summary {
  list-style: none; cursor: pointer; font-weight: 600; padding: 1.1rem 0; display: flex; justify-content: space-between; align-items: center; gap: 1rem;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after { content: "+"; font-size: 1.4rem; color: var(--violet-600); transition: transform .2s; }
.faq__item[open] summary::after { transform: rotate(45deg); }
.faq__item p { color: var(--muted); padding-bottom: 1.1rem; margin: 0; }

/* CTA band */
.cta-band { background: var(--grad); color: #fff; border-radius: 0; }
.cta-band h2 { color: #fff; }
.cta-band .muted { color: rgba(255,255,255,.9); }
.cta-band .btn--grad { background: #fff; color: var(--violet-600); box-shadow: 0 10px 30px rgba(0,0,0,.18); }
.cta-band .btn--grad:hover { box-shadow: 0 16px 36px rgba(0,0,0,.24); }

/* ===== Footer ===== */
.footer { position: relative; overflow: hidden; isolation: isolate; background: #0a0e2a; color: #cfc8e6; padding: 3.5rem 0 1.75rem; }
/* Full-bleed Colorado Springs map, recolored to the brand palette */
.footer__mapbg { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.footer__mapbg iframe {
  position: absolute; left: 0; top: -96px; /* crop Google's top-left place card */
  width: 100%; height: calc(100% + 96px); border: 0;
  filter: invert(.92) hue-rotate(195deg) saturate(1.15) brightness(.7) contrast(1.05);
}
/* Solid navy veil keeps the footer content readable over the dark-blue map */
.footer__veil {
  position: absolute; inset: 0; z-index: 2; pointer-events: none;
  background: rgba(8,11,38,.78);
}
.footer__inner, .footer__bottom { position: relative; z-index: 3; }
.footer__inner { display: grid; grid-template-columns: 1.4fr 1fr; gap: 2.5rem; padding-bottom: 2rem; border-bottom: 1px solid rgba(255,255,255,.08); }
.footer__brand p { color: #8d86ab; margin-top: .4rem; }
/* Footer contact, under the brand */
.footer__contact { font-style: normal; display: flex; flex-direction: column; gap: .55rem; margin-top: 1.2rem; }
.footer__contact > span { display: flex; gap: .65rem; color: #cfc8e6; font-size: .9rem; line-height: 1.45; }
.footer__contact i { color: var(--pink); margin-top: .2rem; width: 1rem; text-align: center; flex: none; }
.footer__contact a { color: #cfc8e6; }
.footer__contact a:hover { color: #fff; }
.footer__dir { display: inline-flex; align-items: center; gap: .45rem; margin-top: .95rem; font-weight: 700; font-size: .88rem; color: #fff; }
.footer__dir i { transition: transform .2s ease; }
.footer__dir:hover i { transform: translateX(3px); }
.footer__links { display: flex; flex-direction: column; gap: .75rem; align-items: flex-start; text-align: left; justify-self: end; }
.footer__links a {
  color: #cfc8e6; font-weight: 500; font-size: .95rem; line-height: 1.2; padding-bottom: 3px;
  background-image: var(--grad);
  background-size: 0% 2px; background-position: 0% 100%; background-repeat: no-repeat;
  transition: color .25s ease, background-size .35s cubic-bezier(.4,0,.2,1);
}
.footer__links a:hover { color: #fff; background-size: 100% 2px; }
.footer__bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 1.5rem; font-size: .85rem; color: #8d86ab; flex-wrap: wrap; gap: .5rem; }
.footer__social { display: flex; gap: 1rem; }
.footer__social a { color: #8d86ab; }
.footer__social a:hover { color: #fff; }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__art { order: -1; max-width: 460px; }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .intro__grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer__inner { grid-template-columns: 1fr; }
  .footer__links { justify-self: start; }
}
@media (max-width: 720px) {
  .nav__toggle { display: flex; }
  .nav__links {
    position: absolute; top: 68px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: .4rem;
    background: #fff; border-bottom: 1px solid var(--line); padding: 1rem 1.25rem 1.4rem; box-shadow: var(--shadow);
    display: none;
  }
  .nav__links.open { display: flex; }
  .nav__links .btn { width: 100%; }
  .grid--3 { grid-template-columns: 1fr; }
  .hero__copy .lede { max-width: none; }
}

/* ===== Docs page ===== */
.docs { display: grid; grid-template-columns: 230px 1fr; gap: 3rem; padding-top: 2.5rem; padding-bottom: 4rem; align-items: start; }
.docs__nav { position: sticky; top: 88px; align-self: start; font-size: .92rem; }
.docs__nav nav { display: flex; flex-direction: column; gap: .15rem; border-left: 1px solid var(--line); padding-left: 1rem; }
.docs__navhead { font-size: .72rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--violet-600); margin: 1.2rem 0 .4rem; }
.docs__navhead:first-child { margin-top: 0; }
.docs__nav a { color: var(--muted); padding: .22rem 0; }
.docs__nav a:hover { color: var(--violet-600); }

.docs__main { min-width: 0; max-width: 760px; }
.docs__head { margin-bottom: 2rem; }
.docs__head h1 { font-size: clamp(2rem, 4vw, 2.8rem); }
.docs__sec { scroll-margin-top: 90px; padding: 1.4rem 0; border-top: 1px solid var(--line); }
.docs__sec:first-of-type { border-top: 0; }
.docs__sec h2 { font-size: 1.5rem; margin-bottom: .6rem; }
.docs__sec h3 { margin-top: 0; }
.docs__sec ol, .docs__sec ul { color: var(--ink-2); padding-left: 1.2rem; }
.docs__sec li { margin: .35rem 0; }
.docs__sec .card p { margin: 0 0 .5rem; }

.pill { display: inline-block; font-size: .68rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; color: #fff; background: var(--grad); padding: .12rem .55rem; border-radius: 999px; vertical-align: middle; }
.docs__repo { font-weight: 600; font-size: .9rem; }

/* Code */
/* Inline code — scoped to docs content so it never touches the hero code window. */
.docs__main code { font-family: var(--mono); font-size: .9em; background: var(--bg-tint); color: var(--violet-600); padding: .1rem .38rem; border-radius: 6px; }
.code { background: #15121f; color: #ece7ff; border-radius: var(--radius); padding: 1rem 1.2rem; overflow-x: auto; box-shadow: var(--shadow); margin: 0 0 1rem; }
.code code { font-family: var(--mono); font-size: .88rem; line-height: 1.7; background: none; color: inherit; padding: 0; }

/* Note box */
.note { background: var(--bg-tint); border: 1px solid #e6def9; border-left: 3px solid var(--violet); border-radius: var(--radius); padding: .9rem 1.1rem; color: var(--ink-2); margin: 1rem 0; }

@media (max-width: 860px) {
  .docs { grid-template-columns: 1fr; gap: 1rem; }
  .docs__nav { position: static; border-left: 0; }
  .docs__nav nav { border-left: 0; padding-left: 0; flex-flow: row wrap; gap: .4rem .9rem; }
  .docs__navhead { width: 100%; margin: .6rem 0 .1rem; }
}

/* ===== Icon links (GitHub etc.) ===== */
.nav__links a.nav__gh { font-size: 1.35rem; color: var(--ink-2); padding: 0 .15rem; }
.nav__links a.nav__gh:hover { color: var(--ink); }
.footer__social { font-size: 1.25rem; gap: 1.1rem; }

/* ===== Legal pages (privacy / terms) ===== */
.legal { max-width: 820px; margin: 0 auto; padding: 3rem 1.25rem 4rem; }
.legal__head { margin-bottom: 1.8rem; padding-bottom: 1.4rem; border-bottom: 1px solid var(--line); }
.legal__head h1 { font-size: clamp(2rem, 4vw, 2.7rem); margin-bottom: .3rem; }
.legal__updated { color: var(--muted); font-size: .92rem; }
.legal .lede { font-size: 1.1rem; color: var(--ink-2); }
.legal h2 { font-size: 1.35rem; margin: 2.2rem 0 .5rem; scroll-margin-top: 90px; }
.legal h3 { font-size: 1.08rem; margin: 1.4rem 0 .35rem; }
.legal p, .legal li { color: var(--ink-2); }
.legal ul, .legal ol { padding-left: 1.3rem; margin: .4rem 0 1rem; }
.legal li { margin: .35rem 0; }
.legal a { color: var(--violet-600); }
.legal__note { background: var(--bg-tint); border: 1px solid var(--line); border-left: 3px solid var(--violet); border-radius: var(--radius); padding: 1rem 1.2rem; margin: 1.4rem 0; font-size: .95rem; }

/* ===== Impact / donated-AI stats band ===== */
/* Deliberately dark so it stands apart from the light/tinted sections around it. */
.impact-band {
  background: radial-gradient(120% 140% at 50% 0%, #241a44 0%, #14102a 65%);
  color: #ece7ff;
}
.impact-band .eyebrow { color: #cbbdff; }
.impact-band h2 { color: #fff; }
.impact-band .muted { color: #b6aee0; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 1.5rem; margin-top: 2.6rem; }
.stat { text-align: center; padding: 1.4rem 1rem; }
.stat__num {
  font-family: var(--mono); font-weight: 800; line-height: 1;
  font-size: clamp(2.6rem, 6.4vw, 3.8rem);
  background: linear-gradient(120deg, #a98cff 0%, #d873f5 50%, #ff62c4 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  font-variant-numeric: tabular-nums;
  text-shadow: 0 0 38px rgba(216, 115, 245, .25);
}
.stat__label { margin-top: .7rem; color: #b9b1de; font-weight: 600; font-size: .98rem; }
@media (max-width: 720px) { .stats { grid-template-columns: 1fr; gap: .5rem; } }

/* How DevEdu Code teaches — principle cards inside the dark band */
.ai-principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; max-width: 1040px; margin: 2.8rem auto 0; }
.ai-principle {
  text-align: left; padding: 1.7rem 1.5rem;
  background: rgba(255, 255, 255, .045);
  border: 1px solid rgba(255, 255, 255, .10);
  border-radius: var(--radius);
}
.ai-principle i {
  display: inline-flex; align-items: center; justify-content: center;
  width: 46px; height: 46px; border-radius: 12px; margin-bottom: 1rem;
  background: rgba(247, 6, 176, .15); color: #ff7ad0; font-size: 1.2rem;
}
.ai-principle h3 { color: #fff; font-size: 1.08rem; margin: 0 0 .45rem; }
.ai-principle p { color: #b6aee0; font-size: .93rem; line-height: 1.6; margin: 0; }
.impact-stats__eyebrow { display: block; text-align: center; margin-top: 3.2rem; color: #cbbdff; }
@media (max-width: 760px) { .ai-principles { grid-template-columns: 1fr; gap: 1rem; } }