/* 5 Sparks Studios: light theme */

:root {
  --teal: #00D1C1;
  --teal-dark: #00A89B;
  --red: #FF3B30;
  --navy: #0F172A;
  --slate: #6B7280;
  --line: #E5E7EB;
  --wash: #F8FAFC;
  --white: #FFFFFF;
  --font-display: "Rajdhani", system-ui, sans-serif;
  --font-accent: "Orbitron", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--white);
  color: var(--navy);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--teal-dark); }
h1, h2, h3 { font-family: var(--font-display); color: var(--navy); line-height: 1.1; margin: 0 0 .5rem; }
h2 { font-size: clamp(2rem, 4vw, 2.75rem); text-transform: uppercase; letter-spacing: .02em; }
h3 { font-size: 1.35rem; font-weight: 700; margin-bottom: .25rem; }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: .85rem 1.5rem;
  background: rgba(255,255,255,.9); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav__brand { display: flex; align-items: center; gap: .6rem; text-decoration: none; color: var(--navy); font-family: var(--font-display); font-weight: 700; font-size: 1.15rem; letter-spacing: .05em; }
.nav__brand em { font-style: normal; font-family: var(--font-accent); font-weight: 500; color: var(--teal-dark); font-size: .8em; }
.nav__links { display: flex; align-items: center; gap: 1.75rem; }
.nav__links a { color: var(--navy); text-decoration: none; font-weight: 500; font-size: .95rem; }
.nav__links a:hover { color: var(--teal-dark); }

/* Buttons */
.btn {
  display: inline-block; padding: .8rem 1.6rem; border-radius: 999px;
  background: var(--navy); color: var(--white); font-family: var(--font-display); font-weight: 700;
  font-size: 1.05rem; letter-spacing: .04em; text-decoration: none; text-transform: uppercase;
  transition: background .15s, transform .15s;
}
.btn:hover { background: var(--teal-dark); transform: translateY(-1px); }

/* Hero */
.hero { text-align: center; padding: 3rem 1.5rem 4rem; }
.hero__logo { margin: 0 auto 1rem; width: min(100%, 440px); }
.hero__lead { max-width: 40rem; margin: 0 auto; font-size: 1.25rem; color: var(--slate); }

/* Sections */
.section { padding: 4.5rem 1.5rem; border-top: 1px solid var(--line); }
.section__inner { max-width: 64rem; margin: 0 auto; }
.section--apps { background: var(--wash); }
.section--contact { text-align: center; }
.eyebrow { font-family: var(--font-accent); color: var(--teal-dark); letter-spacing: .3em; text-transform: uppercase; font-size: .75rem; margin: 0 0 .5rem; }
.section__text { max-width: 44rem; font-size: 1.1rem; color: var(--slate); margin: 0; }
.section--contact .section__text { margin: 0 auto 1.5rem; }
.section__note { margin: 2.5rem 0 0; font-size: .95rem; color: var(--slate); }

/* Apps */
.apps { display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fill, minmax(20rem, 1fr)); margin-top: 2.5rem; }
.app {
  display: flex; gap: 1.25rem; align-items: flex-start;
  background: var(--white); border: 1px solid var(--line); border-radius: 1.25rem; padding: 1.5rem;
  transition: box-shadow .15s, transform .15s;
}
.app:hover { box-shadow: 0 10px 30px rgba(15,23,42,.08); transform: translateY(-2px); }
.app__icon { width: 5.5rem; height: 5.5rem; flex: none; border-radius: 22%; box-shadow: 0 2px 8px rgba(15,23,42,.12); }
.app__body { min-width: 0; }
.app__body p { margin: 0 0 1rem; color: var(--slate); font-size: .95rem; }
.app__stores { display: flex; flex-wrap: wrap; gap: .6rem; align-items: center; }
.app__stores img { height: 40px; width: auto; }

/* Footer */
.footer { text-align: center; padding: 3rem 1.5rem; border-top: 1px solid var(--line); color: var(--slate); font-size: .9rem; }
.footer img { margin: 0 auto 1rem; }
.footer p { margin: .35rem 0; }
.footer__links a { color: var(--slate); text-decoration: none; margin: 0 .5rem; }
.footer__links a:hover { color: var(--teal-dark); text-decoration: underline; }

@media (max-width: 600px) {
  .app { flex-direction: column; }
  .nav__links { gap: 1.1rem; }
}