:root {
    --primary: #0b67ff;
    --primary-dark: #084fc7;
    --primary-soft: #eaf2ff;
    --text: #18212f;
    --text-soft: #5d6a7c;
    --border: #e6ebf2;
    --bg: #ffffff;
    --bg-soft: #f7f9fc;
    --bg-dark: #101828;
    --white: #ffffff;
    --success: #16a34a;
    --shadow-sm: 0 8px 24px rgba(16, 24, 40, 0.06);
    --shadow-md: 0 20px 50px rgba(16, 24, 40, 0.10);
    --radius: 18px;
    --radius-sm: 12px;
    --max-width: 1180px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    display: block;
}

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

/* Header */

header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(230, 235, 242, 0.9);
}

.nav-wrapper {
    min-height: 78px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.logo {
    font-size: 1.45rem;
    font-weight: 800;
    color: var(--primary);
    white-space: nowrap;
    letter-spacing: -0.02em;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 22px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.main-nav a {
    font-size: 0.98rem;
    color: var(--text-soft);
    font-weight: 600;
    transition: color 0.2s ease;
}

.main-nav a:hover {
    color: var(--primary);
}

.btn-header,
.btn-hero,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    font-weight: 700;
    transition: all 0.2s ease;
    cursor: pointer;
}

.btn-header {
    padding: 12px 20px;
    background: var(--primary);
    color: var(--white) !important;
    box-shadow: 0 10px 25px rgba(11, 103, 255, 0.20);
}

.btn-header:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.btn-hero {
    padding: 15px 28px;
    background: var(--primary);
    color: var(--white);
    box-shadow: 0 14px 28px rgba(11, 103, 255, 0.22);
}

.btn-hero:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-secondary {
    padding: 15px 28px;
    background: var(--white);
    color: var(--text);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    border-color: #cfd8e6;
    transform: translateY(-2px);
}

/* Generic sections */

section {
    padding: 88px 0;
}

.section-title {
    text-align: center;
    max-width: 820px;
    margin: 0 auto 52px;
}

.section-title h2 {
    font-size: 2.15rem;
    line-height: 1.15;
    margin-bottom: 14px;
    letter-spacing: -0.03em;
}

.section-title p {
    font-size: 1.06rem;
    color: var(--text-soft);
}

/* Hero */

.hero {
    padding: 82px 0 72px;
    background:
        radial-gradient(circle at top left, rgba(11, 103, 255, 0.10), transparent 32%),
        radial-gradient(circle at top right, rgba(11, 103, 255, 0.08), transparent 28%),
        linear-gradient(180deg, #f8fbff 0%, #ffffff 72%);
}

.hero .container {
    max-width: 920px;
    text-align: center;
}

.hero h1 {
    font-size: 3.25rem;
    line-height: 1.06;
    letter-spacing: -0.04em;
    margin-bottom: 22px;
}

.hero p {
    font-size: 1.18rem;
    color: var(--text-soft);
    max-width: 760px;
    margin: 0 auto 30px;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 26px;
}

.hero-points {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

.hero-points span {
    background: var(--white);
    border: 1px solid var(--border);
    color: var(--text-soft);
    padding: 10px 16px;
    border-radius: 999px;
    font-size: 0.95rem;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

/* Trust strip */

.trust-strip {
    padding: 30px 0 20px;
    background: var(--bg);
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.trust-item {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 26px;
    box-shadow: var(--shadow-sm);
}

.trust-item strong {
    display: block;
    font-size: 1.08rem;
    margin-bottom: 8px;
}

.trust-item p {
    color: var(--text-soft);
    font-size: 0.98rem;
}

/* Cards */

.features,
.audience,
.why-us,
.faq {
    background: var(--bg);
}

.pricing,
.how-it-works,
.contact-cta {
    background: var(--bg-soft);
}

.features-grid,
.audience-grid,
.why-grid,
.steps-grid {
    display: grid;
    gap: 24px;
}

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

.audience-grid,
.why-grid,
.steps-grid {
    grid-template-columns: repeat(3, 1fr);
}

.feature-card,
.audience-card,
.why-card,
.step-card,
.faq-item,
.contact-box,
.price-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

.feature-card,
.audience-card,
.why-card,
.step-card {
    padding: 30px;
}

.feature-card:hover,
.audience-card:hover,
.why-card:hover,
.step-card:hover,
.faq-item:hover {
    transform: translateY(-3px);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 60px;
    height: 60px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    border-radius: 16px;
    background: var(--primary-soft);
    margin-bottom: 18px;
}

.feature-card h3,
.audience-card h3,
.why-card h3,
.step-card h3,
.faq-item h3 {
    font-size: 1.2rem;
    line-height: 1.25;
    margin-bottom: 10px;
    letter-spacing: -0.02em;
}

.feature-card p,
.audience-card p,
.why-card p,
.step-card p,
.faq-item p {
    color: var(--text-soft);
}

/* Steps */

.step-number {
    width: 42px;
    height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: var(--primary);
    color: var(--white);
    font-weight: 800;
    margin-bottom: 16px;
}

/* Pricing */

.price-card {
    max-width: 560px;
    margin: 0 auto;
    padding: 42px;
    text-align: center;
    border: 1px solid #d9e3f3;
    box-shadow: var(--shadow-md);
}

.price-card h3 {
    font-size: 1.3rem;
    margin-bottom: 8px;
}

.price-tag {
    font-size: 3.5rem;
    line-height: 1;
    font-weight: 800;
    color: var(--primary);
    margin: 12px 0 16px;
    letter-spacing: -0.04em;
}

.price-tag span {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-soft);
}

.price-list {
    list-style: none;
    text-align: left;
    margin: 26px 0 28px;
    display: grid;
    gap: 12px;
}

.price-list li {
    position: relative;
    padding-left: 28px;
    color: var(--text);
    font-weight: 500;
}

.price-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 0;
    color: var(--success);
    font-weight: 800;
}

.pricing-note {
    text-align: left;
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 18px;
    margin-bottom: 24px;
}

.pricing-note p {
    color: var(--text-soft);
    margin-bottom: 8px;
}

.pricing-note p:last-child {
    margin-bottom: 0;
}

/* FAQ */

.faq-list {
    max-width: 900px;
    margin: 0 auto;
    display: grid;
    gap: 18px;
}

.faq-item {
    padding: 26px 28px;
}

.faq-cta {
    text-align: center;
    margin-top: 30px;
}

/* Contact CTA */

.contact-box {
    max-width: 760px;
    margin: 0 auto;
    padding: 34px;
    text-align: center;
}

.contact-box p {
    font-size: 1.08rem;
    margin-bottom: 22px;
}

.contact-box a[href^="mailto:"] {
    color: var(--primary);
    font-weight: 700;
}

.contact-buttons {
    display: flex;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
}

/* Footer */

footer {
    background: var(--bg-dark);
    color: #d6dbe4;
    padding: 70px 0 28px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr 1fr 1fr;
    gap: 28px;
    margin-bottom: 28px;
}

.footer-col h3 {
    color: var(--white);
    font-size: 1.05rem;
    margin-bottom: 14px;
}

.footer-col p,
.footer-col li,
.footer-col a {
    color: #b7c0ce;
    font-size: 0.97rem;
}

.footer-col ul {
    list-style: none;
    display: grid;
    gap: 10px;
}

.footer-col a:hover {
    color: var(--white);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.10);
    padding-top: 20px;
    text-align: center;
    color: #9aa6b6;
    font-size: 0.94rem;
}

/* Order form pages */

.order-section {
    padding: 80px 0;
    max-width: 760px;
    margin: 0 auto;
    width: 100%;
}

.form-card {
    background: var(--white);
    padding: 34px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 700;
    color: var(--text);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 13px 14px;
    border: 1px solid #d7dfea;
    border-radius: 12px;
    font-size: 1rem;
    background: #fff;
    color: var(--text);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(11, 103, 255, 0.10);
}

.btn-submit {
    width: 100%;
    border: none;
    padding: 15px 20px;
    border-radius: 999px;
    background: var(--success);
    color: var(--white);
    font-size: 1.05rem;
    font-weight: 800;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-submit:hover {
    background: #15803d;
    transform: translateY(-1px);
}

.alert {
    padding: 16px 18px;
    margin-bottom: 22px;
    border-radius: 14px;
    line-height: 1.5;
    font-weight: 600;
}

.alert-success {
    background: #ecfdf3;
    color: #166534;
    border: 1px solid #bbf7d0;
}

.alert-error {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

/* Responsive */

@media (max-width: 1080px) {
    .features-grid,
    .audience-grid,
    .why-grid,
    .steps-grid,
    .trust-grid,
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 860px) {
    .nav-wrapper {
        align-items: flex-start;
        flex-direction: column;
        padding: 18px 0;
    }

    .main-nav {
        width: 100%;
        justify-content: flex-start;
        gap: 16px;
    }

    .hero {
        padding: 56px 0 56px;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .section-title h2 {
        font-size: 1.9rem;
    }

    section {
        padding: 72px 0;
    }
}

@media (max-width: 640px) {
    .container {
        padding: 0 18px;
    }

    .features-grid,
    .audience-grid,
    .why-grid,
    .steps-grid,
    .trust-grid,
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1.05rem;
    }

    .section-title h2 {
        font-size: 1.65rem;
    }

    .price-card,
    .feature-card,
    .audience-card,
    .why-card,
    .step-card,
    .faq-item,
    .contact-box,
    .form-card {
        padding: 24px;
    }

    .price-tag {
        font-size: 2.8rem;
    }

    .main-nav {
        flex-direction: column;
        align-items: flex-start;
    }

    .btn-header,
    .btn-hero,
    .btn-secondary {
        width: 100%;
    }

    .hero-buttons,
    .contact-buttons {
        flex-direction: column;
    }
}