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

:root {
  --primary: #6C63FF;
  --dark: #1a1a2e;
  --text: #333;
  --muted: #666;
  --bg: #f9f9ff;
  --card-bg: #fff;
  --radius: 16px;
}

body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; }

.hidden { display: none !important; }

/* NAV */
nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.2rem 2rem; background: #fff; box-shadow: 0 1px 8px rgba(0,0,0,.06);
  position: sticky; top: 0; z-index: 100;
}
.logo { font-size: 1.2rem; font-weight: 700; color: var(--dark); }
.logo span { color: var(--primary); }
#lang-toggle {
  background: var(--primary); color: #fff; border: none; border-radius: 8px;
  padding: .4rem .9rem; cursor: pointer; font-size: .9rem; font-weight: 600;
}

/* HERO */
.hero {
  display: flex; align-items: center; justify-content: space-between;
  gap: 3rem; padding: 5rem 2rem; max-width: 1100px; margin: 0 auto;
}
.hero-content { flex: 1; }
.hero-content h1 { font-size: clamp(2.4rem, 5vw, 3.6rem); color: var(--dark); line-height: 1.2; margin-bottom: 1rem; }
.hero-content p { font-size: 1.15rem; color: var(--muted); margin-bottom: 2rem; max-width: 480px; }
.cta-buttons { display: flex; gap: 1rem; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: .85rem 1.8rem; border-radius: 12px;
  font-weight: 600; font-size: 1rem; text-decoration: none; transition: transform .15s, box-shadow .15s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(108,99,255,.25); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-secondary { background: #fff; color: var(--primary); border: 2px solid var(--primary); }

/* PHONE MOCKUP */
.hero-mockup { flex: 0 0 260px; display: flex; justify-content: center; }
.phone-frame {
  width: 220px; height: 440px; border-radius: 36px;
  border: 8px solid var(--dark); background: var(--dark);
  box-shadow: 0 24px 60px rgba(26,26,46,.25); overflow: hidden;
}
.phone-screen {
  width: 100%; height: 100%; border-radius: 28px;
  background: linear-gradient(135deg, #6C63FF 0%, #a78bfa 100%);
}

/* FEATURES */
.features { background: #fff; padding: 5rem 2rem; text-align: center; }
.features h2, .screenshots h2 {
  font-size: 2rem; color: var(--dark); margin-bottom: 3rem;
}
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 2rem; max-width: 1000px; margin: 0 auto; }
.feature-card {
  background: var(--bg); border-radius: var(--radius); padding: 2rem 1.5rem;
  transition: transform .2s, box-shadow .2s;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(108,99,255,.12); }
.feature-icon { font-size: 2.4rem; margin-bottom: 1rem; }
.feature-card h3 { font-size: 1.15rem; color: var(--dark); margin-bottom: .6rem; }
.feature-card p { color: var(--muted); font-size: .95rem; }

/* SCREENSHOTS */
.screenshots { padding: 5rem 2rem; text-align: center; max-width: 1100px; margin: 0 auto; }
.screenshot-row { display: flex; gap: 1.5rem; justify-content: center; flex-wrap: wrap; }
.screenshot-placeholder {
  width: 200px; height: 400px; border-radius: 24px;
  background: linear-gradient(160deg, #e0e7ff 0%, #c7d2fe 100%);
  border: 2px dashed #a5b4fc;
}

/* PLATFORMS */
.platforms {
  text-align: center;
  padding: 2rem;
  background: #fff;
  color: var(--muted);
  font-size: .9rem;
  border-top: 1px solid #eee;
}

/* FOOTER */
footer { background: var(--dark); color: #aaa; text-align: center; padding: 2rem; font-size: .9rem; }
footer a { color: var(--primary); text-decoration: none; }

@media (max-width: 700px) {
  .hero { flex-direction: column; padding: 3rem 1.5rem; text-align: center; }
  .hero-content p { margin: 0 auto 2rem; }
  .cta-buttons { justify-content: center; }
  .hero-mockup { flex: none; }
}