/* Modern vivid design - Mobile-First Approach */
*,
*::before,
*::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

:root {
    --primary: #7c3aed;
    --primary-dark: #5b21b6;
    --secondary: #06b6d4;
    --accent: #22c55e;
    --warm: #f59e0b;
    --text: #0f172a;
    --muted: #64748b;
    --border: rgba(148, 163, 184, 0.18);
    --surface: rgba(255, 255, 255, 0.92);
    --surface-strong: #ffffff;
    --surface-alt: #f8fafc;
    --max-width: 1180px;
    --shadow-sm: 0 12px 30px rgba(15, 23, 42, 0.08);
    --shadow-md: 0 24px 60px rgba(15, 23, 42, 0.12);
    --shadow-lg: 0 30px 90px rgba(124, 58, 237, 0.28);
    --radius: 24px;
}

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background:
        radial-gradient(circle at top left, rgba(125, 211, 252, 0.15), transparent 35%),
        radial-gradient(circle at top right, rgba(196, 181, 253, 0.18), transparent 40%),
        #ffffff;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container {
    width: min(var(--max-width), calc(100% - 24px));
    margin: 0 auto;
}

.narrow { max-width: 760px; }
section { padding: 48px 0; }

h1, h2, h3 {
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -0.03em;
}

h1 {
    font-size: clamp(1.75rem, 8vw, 5.4rem);
    font-weight: 900;
}

h2 {
    font-size: clamp(1.5rem, 5vw, 3.6rem);
    margin-bottom: 18px;
}

h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

p { color: var(--muted); }

.lead {
    font-size: 1.15rem;
    line-height: 1.9;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 20px;
    border-radius: 999px;
    font-weight: 800;
    font-size: 0.9rem;
    border: 1px solid transparent;
    transition: all 0.3s ease;
    white-space: nowrap;
    width: 100%;
}

.btn:hover {
    transform: translateY(-3px) scale(1.01);
}

.btn-primary {
    color: #ffffff;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.95);
    border-color: rgba(255, 255, 255, 0.65);
    color: var(--text);
    box-shadow: 0 12px 35px rgba(15, 23, 42, 0.08);
}

.btn-outline {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.10);
    border-color: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(12px);
}

.btn-light {
    background: #ffffff;
    color: var(--primary);
    box-shadow: 0 18px 50px rgba(15, 23, 42, 0.12);
}

.btn-full { width: 100%; }

@media (min-width: 640px) {
    .btn {
        width: auto;
        padding: 15px 30px;
        font-size: 0.95rem;
    }
}

.hero {
    position: relative;
    overflow: hidden;
    padding: 24px 0 60px;
    background:
        radial-gradient(circle at 15% 20%, rgba(34, 197, 94, 0.20), transparent 25%),
        radial-gradient(circle at 85% 15%, rgba(6, 182, 212, 0.28), transparent 30%),
        radial-gradient(circle at 70% 80%, rgba(245, 158, 11, 0.15), transparent 25%),
        linear-gradient(135deg, #0f172a 0%, #312e81 45%, #7c3aed 100%);
    color: #ffffff;
}

.hero::before,
.hero::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    pointer-events: none;
}

.hero::before {
    width: 320px;
    height: 320px;
    background: #22d3ee;
    top: -80px;
    right: -60px;
}

.hero::after {
    width: 280px;
    height: 280px;
    background: #f472b6;
    bottom: 40px;
    left: -60px;
}

.hero h1, .hero h2, .hero h3, .hero p, .hero li {
    color: #ffffff;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 12px;
}

.logo {
    font-size: 1.3rem;
    font-weight: 900;
    letter-spacing: -0.03em;
}

.logo::before {
    content: "✦";
    margin-right: 8px;
    color: #67e8f9;
}

.badge {
    display: inline-block;
    padding: 9px 16px;
    margin-bottom: 18px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    background: rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.18);
    backdrop-filter: blur(12px);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    align-items: center;
}

.hero-text h1 { margin-bottom: 16px; }
.hero-text .lead { margin-bottom: 24px; opacity: 0.92; font-size: 1rem; }

.hero-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 20px;
}

.hero-actions .btn {
    width: 100%;
}

.hero-benefits {
    display: flex;
    flex-direction: column;
    gap: 10px;
    font-weight: 700;
    opacity: 0.92;
    font-size: 0.95rem;
}

.hero-card,
.card,
.step,
blockquote {
    background: var(--surface);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}

.hero-card {
    padding: 28px;
    border-radius: 24px;
    box-shadow: 0 35px 100px rgba(15, 23, 42, 0.25);
}

.hero-card h3,
.hero-card p {
    color: var(--text);
}

.price-box {
    display: grid;
    gap: 12px;
    margin: 18px 0;
}

.price-box > div {
    display: grid;
    grid-template-columns: 1fr 1fr;
    justify-items: start;
    gap: 12px;
    padding: 14px 16px;
    border-radius: 16px;
    background: linear-gradient(135deg, #eef2ff, #ecfeff);
}

.price-box strong {
    font-size: 1.2rem;
    color: var(--primary);
}

.price-box span {
    font-size: 0.8rem;
    color: var(--muted);
}

@media (min-width: 768px) {
    .hero {
        padding: 32px 0 120px;
    }

    .nav {
        margin-bottom: 70px;
    }

    .logo {
        font-size: 1.65rem;
    }

    .badge {
        margin-bottom: 24px;
        font-size: 0.82rem;
    }

    .hero-content {
        grid-template-columns: 1.25fr 0.75fr;
        gap: 56px;
    }

    .hero-text h1 { margin-bottom: 24px; }
    .hero-text .lead { margin-bottom: 34px; font-size: 1.15rem; }

    .hero-actions {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 14px;
        margin-bottom: 28px;
    }

    .hero-actions .btn {
        width: auto;
    }

    .hero-benefits {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 12px 24px;
        font-size: 1rem;
    }

    .hero-card {
        padding: 36px;
        border-radius: 30px;
    }

    .price-box > div {
        display: flex;
        justify-content: space-between;
        align-items: baseline;
        grid-template-columns: auto;
    }

    .price-box strong {
        font-size: 1.45rem;
    }
}

.problem,
.benefits,
.trust {
    text-align: center;
    background: transparent;
}

.grid-3 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 18px;
}

.grid-4 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

.card,
.step {
    padding: 24px 20px;
    border-radius: var(--radius);
    transition: all 0.3s ease;
}

.card:hover,
.step:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
}

.icon {
    width: 50px;
    height: 50px;
    display: grid;
    place-items: center;
    margin: 0 auto 16px;
    border-radius: 16px;
    font-size: 1.5rem;
    background: linear-gradient(135deg, #ddd6fe, #cffafe);
}

.step {
    text-align: center;
}

.step span {
    display: inline-grid;
    place-items: center;
    width: 48px;
    height: 48px;
    margin-bottom: 12px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #ffffff;
    font-weight: 900;
    box-shadow: 0 14px 35px rgba(124, 58, 237, 0.28);
    font-size: 1.1rem;
}

blockquote {
    margin-top: 20px;
    padding: 28px 20px;
    border-radius: 24px;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
}

.cta {
    padding-top: 16px;
    padding-bottom: 60px;
}

.cta-box {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 20px;
    padding: 36px 24px;
    border-radius: 28px;
    color: #ffffff;
    background:
        radial-gradient(circle at top right, rgba(255,255,255,0.18), transparent 30%),
        linear-gradient(135deg, #7c3aed, #06b6d4);
    box-shadow: 0 35px 90px rgba(124, 58, 237, 0.30);
    text-align: center;
}

.cta-box h2,
.cta-box p {
    color: #ffffff;
}

.cta-box h2 {
    font-size: 1.5rem;
}

.cta-box p {
    margin-bottom: 12px;
}

.cta-box .btn {
    width: 100%;
}

.footer {
    padding: 28px 0 40px;
    border-top: 1px solid rgba(148, 163, 184, 0.12);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 16px;
    color: var(--muted);
    font-weight: 500;
    text-align: center;
    font-size: 0.9rem;
}

.footer a {
    color: var(--primary);
    font-weight: 800;
}

@media (min-width: 640px) {
    .container {
        width: min(var(--max-width), calc(100% - 40px));
    }

    section {
        padding: 60px 0;
    }

    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .icon {
        width: 60px;
        height: 60px;
        border-radius: 18px;
        font-size: 1.8rem;
        margin-bottom: 20px;
    }

    .step span {
        width: 58px;
        height: 58px;
        margin-bottom: 18px;
        font-size: 1.3rem;
    }

    .card,
    .step {
        padding: 28px 24px;
    }

    blockquote {
        padding: 32px 28px;
        font-size: 1.2rem;
    }

    .cta-box {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        gap: 28px;
        padding: 44px 42px;
        text-align: left;
    }

    .cta-box h2 {
        font-size: 1.8rem;
    }

    .cta-box .btn {
        width: auto;
        flex-shrink: 0;
    }

    .footer-content {
        flex-direction: row;
        justify-content: space-between;
        gap: 20px;
        text-align: left;
        font-size: 0.95rem;
    }

    .nav .btn {
        display: inline-flex;
    }
}

@media (min-width: 1024px) {
    .container {
        width: min(var(--max-width), calc(100% - 48px));
    }

    section {
        padding: 100px 0;
    }

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

    .grid-4 {
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
    }

    .card,
    .step {
        padding: 34px 28px;
    }

    blockquote {
        padding: 36px;
        font-size: 1.25rem;
    }

    .cta-box {
        padding: 52px 58px;
    }
}