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

:root {
    --primary: #e74c3c;
    --primary-dark: #c0392b;
    --accent: #f39c12;
    --bg: #fafafa;
    --white: #ffffff;
    --dark: #1a1a2e;
    --gray: #6c757d;
    --light-gray: #e9ecef;
    --radius: 12px;
    --shadow: 0 4px 24px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
}

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg);
    color: var(--dark);
    line-height: 1.6;
    font-size: 16px;
}

.container { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

/* ── Header ── */
.header {
    position: sticky; top: 0; z-index: 100;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--light-gray);
}
.header__inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { display: flex; align-items: center; gap: 8px; text-decoration: none; color: var(--dark); font-weight: 700; font-size: 1.25rem; }
.logo__icon { font-size: 1.5rem; }
.logo__accent { color: var(--primary); }
.logo--light .logo__accent { color: var(--accent); }
.nav { display: flex; align-items: center; gap: 24px; }
.nav__link { text-decoration: none; color: var(--dark); font-size: 0.95rem; transition: color .2s; }
.nav__link:hover { color: var(--primary); }
.burger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; }
.burger span { display: block; width: 24px; height: 2px; background: var(--dark); border-radius: 2px; }

/* ── Buttons ── */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 12px 28px; border-radius: var(--radius); font-size: 1rem;
    font-weight: 600; text-decoration: none; cursor: pointer; border: 2px solid transparent;
    transition: background .2s, transform .15s;
}
.btn:hover { transform: translateY(-1px); }
.btn--sm { padding: 8px 20px; font-size: 0.9rem; background: var(--primary); color: #fff; }
.btn--sm:hover { background: var(--primary-dark); }
.btn--lg { padding: 14px 36px; font-size: 1.05rem; }
.btn--outline { border-color: var(--dark); background: transparent; color: var(--dark); }
.btn--outline:hover { background: var(--dark); color: #fff; }
.btn--full { width: 100%; }

/* ── Hero ── */
.hero { padding: 80px 0 100px; background: linear-gradient(135deg, #fff5f5 0%, #fff 100%); }
.hero__inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero h1 { font-size: 2.8rem; font-weight: 800; line-height: 1.15; margin-bottom: 20px; }
.hero__subtitle { font-size: 1.15rem; color: var(--gray); margin-bottom: 32px; max-width: 480px; }
.hero__actions { display: flex; gap: 16px; margin-bottom: 48px; flex-wrap: wrap; }
.hero__stats { display: flex; gap: 40px; }
.stat { display: flex; flex-direction: column; }
.stat__number { font-size: 1.5rem; font-weight: 800; color: var(--primary); }
.stat__label { font-size: 0.85rem; color: var(--gray); }

/* Hero card */
.hero__card {
    background: #fff; border-radius: 20px; box-shadow: var(--shadow-lg);
    padding: 32px; max-width: 340px; margin: 0 auto;
}
.hero__card-avatar { width: 64px; height: 64px; border-radius: 50%; background: var(--primary);
    display: flex; align-items: center; justify-content: center; font-size: 2rem; margin-bottom: 12px; }
.hero__card-name { font-weight: 700; font-size: 1.1rem; margin-bottom: 4px; }
.hero__card-badge { display: inline-block; background: #e8f5e9; color: #2e7d32; font-size: 0.75rem;
    padding: 4px 12px; border-radius: 20px; font-weight: 600; margin-bottom: 20px; }
.post-preview { display: flex; align-items: center; gap: 10px; padding: 10px 0;
    border-top: 1px solid var(--light-gray); font-size: 0.88rem; }
.post-preview__dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.post-preview__dot--green { background: #27ae60; }
.post-preview__dot--yellow { background: var(--accent); }
.post-preview__dot--blue { background: #2980b9; }

/* ── Sections ── */
.about, .features, .reviews, .subscribe { padding: 80px 0; }
section h2 { text-align: center; font-size: 2rem; font-weight: 800; margin-bottom: 16px; }
.about__lead { text-align: center; font-size: 1.1rem; color: var(--gray); max-width: 640px; margin: 0 auto 48px; }

/* About grid */
.about__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 32px; }
.about__item { background: #fff; padding: 32px; border-radius: var(--radius); box-shadow: var(--shadow); }
.about__icon { font-size: 2.5rem; margin-bottom: 16px; }
.about__item h3 { font-size: 1.1rem; margin-bottom: 8px; }
.about__item p { color: var(--gray); font-size: 0.95rem; }

/* Features */
.features { background: #fff; }
.features__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.feature-card {
    background: var(--bg); border: 1px solid var(--light-gray); border-radius: var(--radius);
    padding: 32px; transition: transform .2s, box-shadow .2s;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.feature-card__emoji { font-size: 2.5rem; margin-bottom: 16px; }
.feature-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.feature-card p { color: var(--gray); font-size: 0.95rem; }

/* Reviews */
.reviews__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.review-card { background: #fff; padding: 32px; border-radius: var(--radius); box-shadow: var(--shadow); }
.review-card__stars { color: var(--accent); font-size: 1.1rem; margin-bottom: 12px; letter-spacing: 2px; }
.review-card p { font-style: italic; color: var(--dark); margin-bottom: 20px; }
.review-card__author { display: flex; align-items: center; gap: 12px; }
.review-card__avatar { width: 40px; height: 40px; border-radius: 50%; background: var(--primary);
    color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; }
.review-card__name { font-weight: 600; font-size: 0.95rem; }
.review-card__role { font-size: 0.8rem; color: var(--gray); }

/* Subscribe */
.subscribe { background: linear-gradient(135deg, var(--dark) 0%, #16213e 100%); color: #fff; }
.subscribe h2 { color: #fff; }
.subscribe__inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.subscribe p { color: rgba(255,255,255,0.8); margin-bottom: 32px; font-size: 1.05rem; }
.subscribe-form { display: flex; flex-direction: column; gap: 16px; max-width: 400px; }
.form-group input { width: 100%; padding: 14px 18px; border: 1px solid rgba(255,255,255,0.2);
    border-radius: var(--radius); background: rgba(255,255,255,0.1); color: #fff; font-size: 1rem; }
.form-group input::placeholder { color: rgba(255,255,255,0.5); }
.form-group input:focus { outline: none; border-color: var(--accent); }
.success-msg { background: rgba(39,174,96,0.2); color: #2ecc71; padding: 12px 16px; border-radius: var(--radius);
    margin-bottom: 16px; }

.subscribe__illustration { text-align: center; padding: 40px; background: rgba(255,255,255,0.05); border-radius: 20px; }
.sub__emoji { font-size: 5rem; margin-bottom: 16px; }
.sub__text { font-size: 1.3rem; font-weight: 700; }

/* ── Footer ── */
.footer { background: var(--dark); color: rgba(255,255,255,0.7); padding: 48px 0 24px; }
.footer__inner { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 32px; }
.footer h4 { color: #fff; font-size: 0.95rem; margin-bottom: 12px; }
.footer a { color: rgba(255,255,255,0.7); text-decoration: none; font-size: 0.9rem; display: block; margin-bottom: 8px; }
.footer a:hover { color: var(--accent); }
.footer__desc { font-size: 0.9rem; margin-top: 12px; }
.footer__bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 24px; }
.footer__copy { font-size: 0.85rem; }

/* ── Responsive ── */
@media (max-width: 768px) {
    .nav { display: none; position: absolute; top: 64px; left: 0; right: 0;
        background: #fff; flex-direction: column; padding: 20px; gap: 16px;
        box-shadow: var(--shadow); }
    .nav--open { display: flex; }
    .burger { display: flex; }
    .hero__inner, .subscribe__inner { grid-template-columns: 1fr; text-align: center; }
    .hero__subtitle, .hero__actions { margin-left: auto; margin-right: auto; }
    .hero__stats { justify-content: center; }
    .hero h1 { font-size: 2rem; }
    .footer__inner { grid-template-columns: 1fr; }
}