/* ==================== TradeScan: единая стилевая система ==================== */
:root {
    --color-dark: #0A2540;
    --color-accent: #00B8A9;
    --color-accent-dark: #008C82;
    --color-light: #F5F7FA;
    --color-text: #1A2B3C;
    --color-secondary: #6B7C8E;
    --color-border: #D5DEE7;
    --color-card-bg: #FFFFFF;
    --color-bg-soft: #F8FAFC;
    --color-success: #00B8A9;
    --color-error: #E63946;
    
    --max-w: 1200px;
    --radius: 8px;
    --radius-lg: 12px;
    --shadow-sm: 0 1px 2px rgba(10, 37, 64, 0.04);
    --shadow: 0 4px 12px rgba(10, 37, 64, 0.08);
    --shadow-lg: 0 12px 32px rgba(10, 37, 64, 0.12);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--color-text);
    background: #fff;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--color-accent-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

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

/* ==================== Layout ==================== */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

.section { padding: 80px 0; }
.section-tight { padding: 48px 0; }
.section-light { background: var(--color-light); }
.section-dark { background: var(--color-dark); color: #fff; }

/* ==================== Typography ==================== */
h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.15;
    color: var(--color-dark);
    font-weight: 700;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    line-height: 1.2;
    color: var(--color-dark);
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-bottom: 16px;
}

h3 {
    font-size: 1.375rem;
    line-height: 1.3;
    color: var(--color-dark);
    font-weight: 700;
    margin-bottom: 12px;
}

h4 {
    font-size: 1.125rem;
    line-height: 1.4;
    color: var(--color-dark);
    font-weight: 600;
    margin-bottom: 8px;
}

p { margin-bottom: 16px; }

.section-tagline {
    display: inline-block;
    color: var(--color-accent);
    font-weight: 700;
    font-size: 0.875rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.section-title { margin-bottom: 16px; }
.section-subtitle { color: var(--color-secondary); font-size: 1.125rem; margin-bottom: 48px; max-width: 720px; }

.section-dark h1, .section-dark h2, .section-dark h3, .section-dark h4 { color: #fff; }
.section-dark .section-subtitle { color: rgba(255, 255, 255, 0.7); }

/* ==================== Header ==================== */
.header {
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(8px);
    background: rgba(255, 255, 255, 0.96);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-dark);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.logo:hover { text-decoration: none; }

.nav { display: flex; gap: 32px; align-items: center; }
.nav a {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s;
}
.nav a:hover { color: var(--color-accent-dark); text-decoration: none; }
.nav a.active { color: var(--color-accent-dark); }

.burger { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.burger span { display: block; width: 24px; height: 2px; background: var(--color-dark); margin: 5px 0; transition: 0.3s; }

@media (max-width: 900px) {
    .nav {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow);
    }
    .nav.open { display: flex; }
    .burger { display: block; }
}

/* ==================== Buttons ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    border: 0;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
    line-height: 1;
}

.btn-primary {
    background: var(--color-accent);
    color: #fff;
}
.btn-primary:hover {
    background: var(--color-accent-dark);
    color: #fff;
    text-decoration: none;
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background: var(--color-dark);
    color: #fff;
}
.btn-secondary:hover {
    background: #061B30;
    color: #fff;
    text-decoration: none;
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--color-dark);
    border: 1.5px solid var(--color-dark);
}
.btn-outline:hover {
    background: var(--color-dark);
    color: #fff;
    text-decoration: none;
}

.btn-ghost {
    background: transparent;
    color: var(--color-accent-dark);
    border: 1.5px solid var(--color-accent);
}
.btn-ghost:hover {
    background: var(--color-accent);
    color: #fff;
    text-decoration: none;
}

.btn-sm { padding: 8px 16px; font-size: 0.875rem; }
.btn-lg { padding: 18px 36px; font-size: 1.125rem; }
.btn-block { display: flex; width: 100%; }

/* ==================== Hero ==================== */
.hero {
    background: linear-gradient(135deg, var(--color-dark) 0%, #122E4F 100%);
    color: #fff;
    padding: 100px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 184, 169, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero-content { position: relative; z-index: 1; max-width: 900px; }

.hero h1 {
    color: #fff;
    font-size: clamp(2.25rem, 5vw, 3.5rem);
    margin-bottom: 24px;
    line-height: 1.1;
}

.hero h1 span { color: var(--color-accent); }

.hero-subtitle {
    color: rgba(255, 255, 255, 0.85);
    font-size: clamp(1.05rem, 2vw, 1.25rem);
    line-height: 1.6;
    margin-bottom: 36px;
    max-width: 700px;
}

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 32px;
    margin-top: 64px;
    padding-top: 48px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.stat .stat-num {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-accent);
    line-height: 1;
    letter-spacing: -0.02em;
    margin-bottom: 8px;
}
.stat .stat-label { color: rgba(255, 255, 255, 0.7); font-size: 0.875rem; }

/* ==================== Cards ==================== */
.card {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all 0.2s;
}
.card:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow);
    transform: translateY(-2px);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.feature .feature-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    background: rgba(0, 184, 169, 0.12);
    color: var(--color-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 16px;
}

.feature h4 { margin-bottom: 8px; }
.feature p { color: var(--color-secondary); margin-bottom: 0; font-size: 0.95rem; }

/* ==================== Report cards ==================== */
.report-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 32px;
}

.report-card {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.2s;
    display: flex;
    flex-direction: column;
}
.report-card:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.report-card-cover {
    aspect-ratio: 1 / 1.414;
    background: var(--color-light);
    overflow: hidden;
    border-bottom: 1px solid var(--color-border);
    position: relative;
}
.report-card-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top;
}

.report-card-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--color-accent);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: 6px 12px;
    border-radius: 4px;
}

.report-card-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.report-card-tag {
    display: inline-block;
    color: var(--color-accent-dark);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}
.report-card-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 12px;
    line-height: 1.3;
}
.report-card-meta {
    color: var(--color-secondary);
    font-size: 0.875rem;
    margin-bottom: 16px;
    flex: 1;
}
.report-card-footer {
    display: flex;
    gap: 8px;
    margin-top: auto;
}
.report-card-footer .btn { flex: 1; }

/* ==================== Pricing ==================== */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-top: 48px;
}

.pricing-card {
    background: #fff;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 36px 32px;
    transition: all 0.2s;
    display: flex;
    flex-direction: column;
}
.pricing-card.popular {
    border-color: var(--color-accent);
    position: relative;
}
.pricing-card.popular::before {
    content: 'Популярный';
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-accent);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 6px 16px;
    border-radius: 4px;
}

.pricing-card h3 { font-size: 1.25rem; margin-bottom: 8px; }
.pricing-card-deadline {
    color: var(--color-secondary);
    font-size: 0.875rem;
    margin-bottom: 24px;
}
.pricing-card-price {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-dark);
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}
.pricing-card-price small {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-secondary);
}

.pricing-card ul {
    list-style: none;
    padding: 0;
    margin: 0 0 32px;
    flex: 1;
}
.pricing-card ul li {
    padding: 8px 0 8px 28px;
    position: relative;
    color: var(--color-text);
    font-size: 0.95rem;
}
.pricing-card ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 8px;
    color: var(--color-accent);
    font-weight: 700;
}

/* ==================== Forms ==================== */
.form-group { margin-bottom: 20px; }

.form-label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--color-dark);
    font-size: 0.95rem;
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 1rem;
    color: var(--color-text);
    background: #fff;
    transition: all 0.2s;
}
.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: 0;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(0, 184, 169, 0.15);
}

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

.form-hint { color: var(--color-secondary); font-size: 0.8rem; margin-top: 6px; }

.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--color-secondary);
    line-height: 1.5;
}
.form-checkbox input { margin-top: 3px; flex-shrink: 0; }

.form-status {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-top: 16px;
    display: none;
    font-size: 0.95rem;
}
.form-status.success { display: block; background: rgba(0, 184, 169, 0.1); color: var(--color-accent-dark); }
.form-status.error { display: block; background: rgba(230, 57, 70, 0.1); color: var(--color-error); }

/* ==================== CTA blocks ==================== */
.cta-block {
    background: var(--color-dark);
    color: #fff;
    padding: 56px;
    border-radius: var(--radius-lg);
    text-align: center;
}
.cta-block h2 { color: #fff; margin-bottom: 16px; }
.cta-block p { color: rgba(255, 255, 255, 0.85); font-size: 1.125rem; margin-bottom: 32px; }

/* ==================== Footer ==================== */
.footer {
    background: var(--color-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 64px 0 32px;
    margin-top: 80px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

@media (max-width: 720px) {
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

.footer h4 { color: #fff; font-size: 1rem; margin-bottom: 16px; }
.footer-logo { font-size: 1.5rem; font-weight: 800; color: #fff; margin-bottom: 16px; }
.footer-tagline { color: rgba(255, 255, 255, 0.6); font-size: 0.9rem; margin-bottom: 16px; }

.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 8px; }
.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}
.footer-links a:hover { color: var(--color-accent); text-decoration: none; }

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
    flex-wrap: wrap;
    gap: 16px;
}

/* ==================== Article (blog) ==================== */
.article-hero {
    background: var(--color-light);
    padding: 64px 0 48px;
    border-bottom: 1px solid var(--color-border);
}
.article-meta {
    color: var(--color-secondary);
    font-size: 0.9rem;
    margin-bottom: 16px;
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}
.article-meta .article-tag {
    color: var(--color-accent-dark);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.8rem;
}

.article-content { max-width: 760px; margin: 0 auto; padding: 56px 24px; }
.article-content h2 { margin-top: 40px; margin-bottom: 16px; }
.article-content h3 { margin-top: 32px; margin-bottom: 12px; }
.article-content p { margin-bottom: 18px; font-size: 1.05rem; line-height: 1.75; }
.article-content ul, .article-content ol { margin: 0 0 24px 24px; }
.article-content li { margin-bottom: 8px; line-height: 1.7; }
.article-content blockquote {
    border-left: 4px solid var(--color-accent);
    padding: 16px 24px;
    margin: 24px 0;
    background: var(--color-light);
    border-radius: 0 var(--radius) var(--radius) 0;
    color: var(--color-text);
    font-size: 1.05rem;
}

/* ==================== Report detail page ==================== */
.report-detail {
    display: grid;
    grid-template-columns: 360px 1fr;
    gap: 48px;
    align-items: start;
}
@media (max-width: 800px) { .report-detail { grid-template-columns: 1fr; } }

.report-detail-cover {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.report-detail-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 24px;
}

.report-detail-content h1 { margin-bottom: 24px; }

.report-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 16px;
    padding: 24px;
    background: var(--color-light);
    border-radius: var(--radius-lg);
    margin: 32px 0;
}
.report-info-item .label {
    font-size: 0.75rem;
    color: var(--color-accent-dark);
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.05em;
    margin-bottom: 4px;
}
.report-info-item .value { font-weight: 700; color: var(--color-dark); font-size: 1rem; }

.report-toc { margin-top: 32px; }
.report-toc ul { list-style: none; padding: 0; }
.report-toc li {
    padding: 12px 0;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
}
.report-toc li::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-accent);
    flex-shrink: 0;
}

/* ==================== Legal pages ==================== */
.legal-content { max-width: 820px; margin: 0 auto; padding: 56px 24px; }
.legal-content h1 { margin-bottom: 32px; }
.legal-content h2 { margin-top: 32px; margin-bottom: 12px; font-size: 1.5rem; }
.legal-content p { margin-bottom: 14px; line-height: 1.7; }
.legal-content ul, .legal-content ol { margin: 0 0 16px 24px; }
.legal-content li { margin-bottom: 6px; line-height: 1.7; }

/* ==================== Utility ==================== */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.mb-0 { margin-bottom: 0; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }