:root {
  --color-primary: #7C3AED;
  --color-secondary: #A78BFA;
  --color-accent: #22C55E;
  --color-neutral-dark: #4C1D95;
  --color-neutral-light: #FAF5FF;
  --color-ink: #1B1236;
  --color-muted: #5B4B7A;
  --color-border: rgba(76, 29, 149, 0.14);
  --font-heading: 'Inter', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --radius-lg: 24px;
  --radius-md: 14px;
  --shadow-card: 0 30px 60px -30px rgba(31, 12, 64, 0.28);
  --shadow-soft: 0 12px 30px -18px rgba(31, 12, 64, 0.25);
}

/* === Base === */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-ink);
  background: #fff;
  line-height: 1.6;
  font-size: 17px;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { font-family: var(--font-heading); color: var(--color-neutral-dark); line-height: 1.2; letter-spacing: -0.01em; margin: 0 0 1rem; }
h1 { font-size: clamp(2.25rem, 5vw, 3.75rem); font-weight: 700; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.25rem); font-weight: 600; }
h3 { font-size: 1.2rem; font-weight: 600; }
p { margin: 0 0 1rem; }
.container { width: 100%; max-width: 1160px; margin-inline: auto; padding-inline: 1.25rem; }

/* === Buttons === */
.btn {
  display: inline-block;
  padding: 0.85rem 1.5rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease;
  text-align: center;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn--primary { background: var(--color-primary); color: #fff; }
.btn--primary:hover { background: var(--color-neutral-dark); }
.btn--accent { background: var(--color-accent); color: #06301A; }
.btn--accent:hover { background: #16a34a; color: #fff; }
.btn--ghost { background: transparent; color: inherit; border-color: currentColor; }

/* === Header === */
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}
.site-header__inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-block: 0.75rem; }
.logo { display: inline-flex; align-items: center; }
.logo img { height: 72px; width: auto; display: block; }
.nav-toggle {
  display: inline-flex; flex-direction: column; gap: 5px;
  background: transparent; border: 0; padding: 0.5rem; cursor: pointer;
}
.nav-toggle span { width: 26px; height: 2px; background: var(--color-neutral-dark); display: block; }
.site-nav { display: none; flex-direction: column; gap: 0.25rem; position: absolute; top: 100%; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--color-border); padding: 0.5rem 1.25rem 1rem; }
.site-nav.is-open { display: flex; }
.site-nav a { padding: 0.6rem 0; color: var(--color-neutral-dark); font-weight: 500; }
.site-nav a[aria-current="page"] { color: var(--color-primary); }

@media (min-width: 820px) {
  .nav-toggle { display: none; }
  .site-nav { display: flex; flex-direction: row; position: static; background: transparent; border: 0; padding: 0; gap: 1.75rem; }
  .site-nav a { padding: 0; }
  .logo img { height: 96px; }
}

/* === Hero card === */
.hero-card-section {
  padding-block: 3rem 3.5rem;
  background:
    radial-gradient(ellipse at 15% 0%, rgba(167,139,250,0.28), transparent 55%),
    radial-gradient(ellipse at 90% 100%, rgba(124,58,237,0.18), transparent 60%),
    var(--color-neutral-light);
}
.hero-card {
  max-width: 880px;
  margin-inline: auto;
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 2.25rem 1.5rem;
  box-shadow: var(--shadow-card);
  text-align: center;
  border: 1px solid var(--color-border);
}
.hero-card .eyebrow { text-transform: uppercase; letter-spacing: 0.12em; font-size: 0.78rem; font-weight: 600; color: var(--color-primary); margin: 0 0 1rem; }
.hero-card h1 { max-width: 22ch; margin-inline: auto; }
.hero-card__sub { color: var(--color-muted); max-width: 52ch; margin: 1rem auto 1.5rem; font-size: 1.08rem; }
.hero-card__cta { margin: 0 0 1.75rem; }
.hero-card__img { border-radius: var(--radius-md); aspect-ratio: 16/9; object-fit: cover; width: 100%; }

@media (min-width: 768px) {
  .hero-card-section { padding-block: 5rem 5.5rem; }
  .hero-card { padding: 4rem 3.5rem; }
}

/* === Generic sections === */
.section { padding-block: 3.5rem; }
.section--tint { background: var(--color-neutral-light); }
.section--narrow .container { max-width: 760px; }
.section--narrow h2 { margin-bottom: 1.25rem; }
.section .lede { font-size: 1.08rem; color: var(--color-ink); }
.section__head { text-align: center; margin-bottom: 2.5rem; }
.section__head h2 { margin-bottom: 0.5rem; }
.section__head p { color: var(--color-muted); max-width: 54ch; margin-inline: auto; }

@media (min-width: 768px) {
  .section { padding-block: 5rem; }
}

/* === Grid + cards === */
.grid { display: grid; gap: 1.25rem; grid-template-columns: 1fr; }
@media (min-width: 640px) { .grid--2 { grid-template-columns: 1fr 1fr; } }
@media (min-width: 900px) { .grid--3 { grid-template-columns: repeat(3, 1fr); } }

.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.5rem;
  box-shadow: var(--shadow-soft);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.card h3 { color: var(--color-neutral-dark); margin-bottom: 0.5rem; }
.card p { color: var(--color-muted); margin: 0; }
.card__icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; border-radius: 12px;
  background: rgba(124, 58, 237, 0.1); color: var(--color-primary);
  margin-bottom: 1rem;
}
.card-link { display: block; color: inherit; }
.card-link:hover { text-decoration: none; transform: translateY(-2px); box-shadow: 0 20px 45px -25px rgba(31,12,64,0.35); }
.card-link h3 { color: var(--color-primary); }

/* === Testimonial === */
.testimonial { background: var(--color-neutral-light); }
.testimonial blockquote {
  margin: 0 auto;
  max-width: 720px;
  text-align: center;
  font-family: var(--font-heading);
  font-size: clamp(1.15rem, 2vw, 1.35rem);
  line-height: 1.5;
  color: var(--color-neutral-dark);
  position: relative;
  padding: 0 0.5rem;
}
.testimonial blockquote p { font-weight: 500; }
.testimonial cite {
  display: block; margin-top: 1.25rem;
  font-style: normal; font-size: 0.92rem; font-weight: 500;
  color: var(--color-muted); letter-spacing: 0.02em;
}

/* === CTA band === */
.cta-band {
  background: linear-gradient(135deg, var(--color-primary), var(--color-neutral-dark));
  color: #fff;
  padding-block: 3.5rem;
}
.cta-band h2 { color: #fff; margin-bottom: 0.5rem; }
.cta-band p { color: rgba(255,255,255,0.85); margin: 0; }
.cta-band__inner { display: grid; gap: 1.5rem; align-items: center; }
.cta-band__action { margin: 0; }
@media (min-width: 820px) {
  .cta-band__inner { grid-template-columns: 1fr auto; }
}

/* === Contact band (about page) === */
.contact-band { background: var(--color-neutral-light); text-align: center; }
.contact-band .container { max-width: 760px; }
.contact-band__line { color: var(--color-muted); font-size: 0.98rem; margin-block: 1rem 1.5rem; }

/* === Contact form === */
.contact-form { display: grid; gap: 1rem; max-width: 640px; margin-inline: auto; }
.field { display: flex; flex-direction: column; gap: 0.35rem; }
.field label { font-weight: 500; color: var(--color-neutral-dark); font-size: 0.95rem; }
.field input, .field textarea {
  font: inherit;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: #fff;
  color: var(--color-ink);
}
.field input:focus, .field textarea:focus { outline: 2px solid var(--color-primary); outline-offset: 1px; }
.form-consent { display: flex; align-items: flex-start; gap: 0.6rem; font-size: 0.9rem; color: var(--color-muted); }
.form-consent input { margin-top: 0.25rem; }

/* === Article detail === */
.article-detail { max-width: 65ch; margin-inline: auto; padding: 3rem 1rem 4rem; }
.article-detail .eyebrow { text-transform: uppercase; letter-spacing: 0.12em; font-size: 0.78rem; font-weight: 600; color: var(--color-primary); margin-bottom: 0.75rem; }
.article-detail h1 { font-size: clamp(2rem, 4vw, 3rem); line-height: 1.15; margin-bottom: 1.25rem; }
.article-detail__sub { font-size: 1.2rem; color: var(--color-muted); margin-bottom: 1.5rem; }
.article-detail__hero { width: 100%; aspect-ratio: 16/9; object-fit: cover; margin-block: 2rem; border-radius: 8px; }
.article-detail h2 { margin-top: 2.25rem; font-size: 1.5rem; }
.article-detail p { font-size: 1.1rem; line-height: 1.75; margin-block: 1.25rem; color: var(--color-ink); }
.article-detail__foot { margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--color-border); }
.back-link { font-weight: 500; color: var(--color-primary); }

/* === Footer === */
.site-footer {
  background: var(--color-neutral-dark);
  color: rgba(255,255,255,0.85);
  padding-block: 3rem 1.5rem;
  margin-top: 2rem;
}
.site-footer h3 { color: #fff; font-size: 0.95rem; text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 1rem; }
.site-footer a { color: rgba(255,255,255,0.85); }
.site-footer a:hover { color: #fff; }
.site-footer__grid { display: grid; gap: 2.25rem; grid-template-columns: 1fr; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.4rem; }
.footer-legal { margin-top: 1rem; padding-top: 1rem; border-top: 1px solid rgba(255,255,255,0.14); }
.footer-tagline { color: rgba(255,255,255,0.7); font-size: 0.95rem; max-width: 28ch; }
.logo--footer img { height: 60px; filter: brightness(0) invert(1); margin-bottom: 0.75rem; }
.site-footer address { font-style: normal; line-height: 1.75; }
.site-footer__base { border-top: 1px solid rgba(255,255,255,0.14); margin-top: 2.25rem; padding-top: 1.25rem; font-size: 0.88rem; color: rgba(255,255,255,0.65); }

@media (min-width: 820px) {
  .site-footer__grid { grid-template-columns: 1.4fr 1fr 1.3fr; }
}

/* === Cookie banner === */
.cookie-banner {
  position: fixed; left: 1rem; right: 1rem; bottom: 1rem;
  display: none; z-index: 9999;
  background: var(--color-neutral-dark);
  color: var(--color-neutral-light);
  border-radius: 14px;
  padding: 1.1rem 1.25rem;
  box-shadow: 0 30px 70px -30px rgba(0,0,0,0.5);
  max-width: 720px;
  margin-inline: auto;
}
.cookie-banner.is-visible { display: block; }
.cookie-banner p { margin: 0 0 0.9rem; font-size: 0.92rem; line-height: 1.5; }
.cookie-banner__actions { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.cookie-banner .btn { padding: 0.55rem 1.1rem; font-size: 0.88rem; }
.cookie-banner .btn--ghost { color: var(--color-neutral-light); border-color: rgba(250,245,255,0.4); }
.cookie-banner .btn--ghost:hover { border-color: var(--color-neutral-light); }
.cookie-banner__prefs { display: grid; gap: 0.5rem; margin-top: 1rem; padding-top: 1rem; border-top: 1px solid rgba(255,255,255,0.18); font-size: 0.9rem; }
.cookie-banner__prefs label { display: flex; align-items: center; gap: 0.5rem; }