/* SikAmp Landing Page — Y2K/Retro Aesthetic */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg-dark: #1a1a20;
  --bg-metallic: #29292e;
  --bg-card: #32323a;
  --green-glow: #00ff00;
  --green-dim: #00cc00;
  --green-dark: #009900;
  --text-primary: #e0e0e0;
  --text-secondary: #a0a0a0;
  --border-light: #4a4a52;
  --border-raised: #5a5a62;
  --border-sunken: #18181c;
  --accent-blue: #3a7bd5;
  --font-main: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'Courier New', Courier, monospace;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg-dark);
  color: var(--text-primary);
  font-family: var(--font-main);
  line-height: 1.6;
  min-height: 100vh;
}

/* ═══ Hero ═══ */

.hero {
  text-align: center;
  padding: 4rem 1.5rem 3rem;
  background:
    linear-gradient(180deg, var(--bg-metallic) 0%, var(--bg-dark) 100%);
  border-bottom: 2px solid var(--border-light);
}

.hero__logo {
  display: block;
  margin: 0 auto 1.5rem;
  max-width: 180px;
  height: auto;
  filter: drop-shadow(0 0 20px rgba(0, 255, 0, 0.3));
}

.hero__title {
  font-size: 3rem;
  font-weight: 700;
  color: var(--green-glow);
  text-shadow: 0 0 10px rgba(0, 255, 0, 0.5);
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}

.hero__pitch {
  font-size: 1.4rem;
  color: var(--text-primary);
  margin-top: 0.5rem;
  font-style: italic;
}

.hero__description {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-top: 1rem;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

/* ═══ Section titles ═══ */

.section-title {
  text-align: center;
  font-size: 1.6rem;
  color: var(--green-glow);
  font-family: var(--font-mono);
  text-shadow: 0 0 6px rgba(0, 255, 0, 0.3);
  margin-bottom: 1.5rem;
}

/* ═══ Download ═══ */

.download {
  padding: 3rem 1.5rem;
  text-align: center;
  background: var(--bg-metallic);
  border-bottom: 2px solid var(--border-light);
}

.download__version {
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.download__buttons {
  display: flex;
  justify-content: center;
  gap: 1.2rem;
  flex-wrap: wrap;
  max-width: 700px;
  margin: 0 auto;
}

.download__btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  padding: 1.2rem 2rem;
  min-width: 160px;
  border: 2px solid var(--border-light);
  border-radius: 4px;
  background:
    linear-gradient(180deg, #3e3e46 0%, #2a2a32 100%);
  color: var(--text-primary);
  text-decoration: none;
  font-family: var(--font-main);
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.1s;
  /* 3D raised effect */
  box-shadow:
    inset 1px 1px 0 var(--border-raised),
    inset -1px -1px 0 var(--border-sunken),
    0 2px 6px rgba(0, 0, 0, 0.4);
}

.download__btn:hover {
  border-color: var(--green-dim);
  box-shadow:
    inset 1px 1px 0 var(--border-raised),
    inset -1px -1px 0 var(--border-sunken),
    0 0 12px rgba(0, 255, 0, 0.2);
  transform: translateY(-1px);
}

.download__btn:active {
  transform: translateY(1px);
  box-shadow:
    inset -1px -1px 0 var(--border-raised),
    inset 1px 1px 0 var(--border-sunken);
}

/* Detected OS highlight */
.download__btn--detected {
  border-color: var(--green-glow);
  box-shadow:
    inset 1px 1px 0 var(--border-raised),
    inset -1px -1px 0 var(--border-sunken),
    0 0 16px rgba(0, 255, 0, 0.3);
}

.download__btn--detected .download__btn-label {
  color: var(--green-glow);
}

.download__btn-icon {
  font-size: 1.8rem;
}

.download__btn-label {
  font-size: 1.1rem;
  font-weight: 600;
}

.download__btn-format {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

.download__mobile-note {
  display: none;
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 1rem;
  font-style: italic;
}

.download__alt {
  margin-top: 1.5rem;
  font-size: 0.85rem;
}

.download__alt a {
  color: var(--green-dim);
  text-decoration: underline;
}

.download__alt a:hover {
  color: var(--green-glow);
}

/* ═══ Features ═══ */

.features {
  padding: 3rem 1.5rem;
  max-width: 900px;
  margin: 0 auto;
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
}

.features__card {
  background:
    linear-gradient(180deg, #3a3a42 0%, #2c2c34 100%);
  border: 1px solid var(--border-light);
  border-radius: 4px;
  padding: 1.5rem;
  text-align: center;
  box-shadow:
    inset 1px 1px 0 var(--border-raised),
    inset -1px -1px 0 var(--border-sunken);
}

.features__icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 0.5rem;
}

.features__card h3 {
  font-size: 1rem;
  color: var(--green-glow);
  font-family: var(--font-mono);
  margin-bottom: 0.4rem;
}

.features__card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* ═══ Footer ═══ */

.footer {
  text-align: center;
  padding: 2rem 1.5rem;
  border-top: 2px solid var(--border-light);
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.footer a {
  color: var(--green-dim);
  text-decoration: none;
}

.footer a:hover {
  color: var(--green-glow);
  text-decoration: underline;
}

/* ═══ Responsive ═══ */

@media (max-width: 768px) {
  .hero {
    padding: 2.5rem 1rem 2rem;
  }

  .hero__logo {
    max-width: 120px;
  }

  .hero__title {
    font-size: 2rem;
  }

  .hero__pitch {
    font-size: 1.1rem;
  }

  .download__buttons {
    flex-direction: column;
    align-items: center;
  }

  .download__btn {
    width: 100%;
    max-width: 280px;
  }

  .download__mobile-note {
    display: block;
  }

  .features__grid {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .features__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}