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

:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --accent: #f59e0b;
  --dark: #0f172a;
  --gray: #f8fafc;
  --text: #334155;
  --text-light: #64748b;
  --border: #e2e8f0;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(0,0,0,.08);
}

html { scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; color: var(--text); line-height: 1.6; }

/* UTILS */
.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section--gray { background: var(--gray); }
.section--dark { background: var(--dark); color: #fff; }

.section__head { text-align: center; margin-bottom: 56px; }
.section__head h2 { font-size: 2rem; font-weight: 800; color: var(--dark); margin-bottom: 12px; }
.section--dark .section__head h2 { color: #fff; }
.section__head p { color: var(--text-light); font-size: 1.05rem; max-width: 520px; margin: 0 auto; }

.grid { display: grid; gap: 28px; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }

.card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow); transition: transform .2s, box-shadow .2s; }
.card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,.12); }

/* BUTTONS */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 24px; border-radius: 8px; font-weight: 600; font-size: .95rem; text-decoration: none; cursor: pointer; border: 2px solid transparent; transition: all .2s; }
.btn--sm { padding: 8px 18px; font-size: .85rem; }
.btn--lg { padding: 14px 32px; font-size: 1rem; }
.btn--full { width: 100%; }
.btn--primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn--primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); }
.btn--outline { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn--outline:hover { background: var(--primary); color: #fff; }

/* LOGO */
.logo { font-size: 1.35rem; font-weight: 800; color: var(--dark); text-decoration: none; letter-spacing: -.5px; }
.logo span { color: var(--primary); }
.logo--white { color: #fff; }
.logo--white span { color: var(--accent); }

/* NAV */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: rgba(255,255,255,.95); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); }
.nav__inner { display: flex; align-items: center; gap: 32px; height: 68px; }
.nav__links { display: flex; gap: 24px; flex: 1; }
.nav__links a { text-decoration: none; color: var(--text); font-size: .9rem; font-weight: 500; transition: color .2s; }
.nav__links a:hover { color: var(--primary); }
.nav__burger { display: none; background: none; border: none; font-size: 1.4rem; cursor: pointer; }
.nav__mobile { display: none; flex-direction: column; padding: 16px 24px; gap: 12px; border-top: 1px solid var(--border); background: #fff; }
.nav__mobile a { text-decoration: none; color: var(--text); font-weight: 500; padding: 8px 0; }
.nav__mobile.open { display: flex; }

/* HERO */
.hero { padding: 160px 0 100px; background: linear-gradient(135deg, #eff6ff 0%, #fff 60%); text-align: center; }
.hero__badge { display: inline-block; background: #dbeafe; color: var(--primary); padding: 6px 16px; border-radius: 999px; font-size: .85rem; font-weight: 600; margin-bottom: 24px; }
.hero h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); font-weight: 800; color: var(--dark); line-height: 1.15; margin-bottom: 20px; }
.hero h1 span { color: var(--primary); }
.hero p { font-size: 1.15rem; color: var(--text-light); max-width: 560px; margin: 0 auto 36px; }
.hero__cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 56px; }
.hero__stats { display: flex; gap: 48px; justify-content: center; flex-wrap: wrap; }
.hero__stats div { display: flex; flex-direction: column; gap: 4px; }
.hero__stats strong { font-size: 1.6rem; font-weight: 800; color: var(--dark); }
.hero__stats span { font-size: .85rem; color: var(--text-light); }

/* PRODUCT CARDS */
.product-card__icon { font-size: 2.2rem; margin-bottom: 16px; }
.product-card h3 { font-size: 1.1rem; font-weight: 700; color: var(--dark); margin-bottom: 10px; }
.product-card p { font-size: .9rem; color: var(--text-light); margin-bottom: 16px; }
.product-card__meta { font-size: .8rem; font-weight: 600; color: var(--primary); background: #dbeafe; padding: 4px 12px; border-radius: 999px; display: inline-block; }

/* STEPS */
.step { text-align: center; padding: 20px; }
.step__num { font-size: 3rem; font-weight: 800; color: var(--primary); opacity: .2; line-height: 1; margin-bottom: 12px; }
.step h3 { font-size: 1.1rem; font-weight: 700; color: var(--dark); margin-bottom: 10px; }
.step p { font-size: .9rem; color: var(--text-light); }

/* PRICING */
.pricing-card { position: relative; text-align: center; }
.pricing-card--popular { border-color: var(--primary); border-width: 2px; }
.pricing-card__badge { position: absolute; top: -14px; left: 50%; transform: translateX(-50%); background: var(--primary); color: #fff; padding: 4px 16px; border-radius: 999px; font-size: .78rem; font-weight: 700; white-space: nowrap; }
.pricing-card__name { font-size: 1rem; font-weight: 600; color: var(--text-light); margin-bottom: 12px; text-transform: uppercase; letter-spacing: 1px; }
.pricing-card__price { font-size: 2.8rem; font-weight: 800; color: var(--dark); margin-bottom: 28px; }
.pricing-card__price span { font-size: 1rem; font-weight: 500; color: var(--text-light); }
.pricing-card__features { list-style: none; text-align: left; margin-bottom: 28px; display: flex; flex-direction: column; gap: 10px; }
.pricing-card__features li { font-size: .9rem; color: var(--text); }

/* FEATURES */
.feature { text-align: center; padding: 24px; }
.feature__icon { font-size: 2rem; margin-bottom: 14px; }
.feature h3 { font-size: 1rem; font-weight: 700; color: var(--dark); margin-bottom: 8px; }
.feature p { font-size: .88rem; color: var(--text-light); }

/* TESTIMONIALS */
.testimonial__stars { color: var(--accent); font-size: 1rem; margin-bottom: 14px; }
.testimonial p { font-size: .9rem; color: var(--text); margin-bottom: 20px; font-style: italic; }
.testimonial__author { display: flex; align-items: center; gap: 12px; }
.testimonial__avatar { width: 40px; height: 40px; border-radius: 50%; background: var(--primary); color: #fff; font-weight: 700; font-size: .85rem; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.testimonial__author strong { display: block; font-size: .9rem; color: var(--dark); }
.testimonial__author span { font-size: .8rem; color: var(--text-light); }

/* CONTACT */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.contact__info h2 { font-size: 1.8rem; font-weight: 800; margin-bottom: 12px; }
.contact__info p { color: #94a3b8; margin-bottom: 28px; }
.contact__details { display: flex; flex-direction: column; gap: 12px; font-size: .9rem; color: #cbd5e1; }
.contact__details a { color: var(--accent); text-decoration: none; }
.contact__form { display: flex; flex-direction: column; gap: 14px; }
.contact__form input, .contact__form select, .contact__form textarea {
  padding: 12px 16px; border-radius: 8px; border: 1px solid #334155; background: #1e293b; color: #fff; font-size: .95rem; font-family: inherit; outline: none; transition: border-color .2s;
}
.contact__form input:focus, .contact__form select:focus, .contact__form textarea:focus { border-color: var(--primary); }
.contact__form select option { background: #1e293b; }
.contact__form textarea { resize: vertical; }

/* FOOTER */
.footer { background: #020617; color: #94a3b8; padding: 64px 0 0; }
.footer__inner { display: grid; grid-template-columns: 1fr 2fr; gap: 48px; padding-bottom: 48px; }
.footer__inner > div:first-child p { font-size: .85rem; margin-top: 14px; line-height: 1.7; }
.footer__links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.footer__links > div { display: flex; flex-direction: column; gap: 10px; }
.footer__links strong { color: #e2e8f0; font-size: .9rem; margin-bottom: 4px; }
.footer__links a { color: #64748b; font-size: .85rem; text-decoration: none; transition: color .2s; }
.footer__links a:hover { color: #e2e8f0; }
.footer__bottom { border-top: 1px solid #1e293b; padding: 20px 0; font-size: .82rem; color: #475569; }

/* RESPONSIVE */
@media (max-width: 900px) {
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .contact { grid-template-columns: 1fr; gap: 40px; }
  .footer__inner { grid-template-columns: 1fr; }
  .footer__links { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 640px) {
  .nav__links { display: none; }
  .nav__burger { display: block; }
  .grid--3 { grid-template-columns: 1fr; }
  .hero { padding: 120px 0 80px; }
  .hero__stats { gap: 28px; }
  .footer__links { grid-template-columns: 1fr 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
}