:root {
    --seo-bg: #f8fafc;
    --seo-card: #ffffff;
    --seo-text: #0f172a;
    --seo-muted: #475569;
    --seo-border: #dbe4ee;
    --seo-accent: #b31500;
    --seo-accent-dark: #8f1100;
    --seo-dark: #101826;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--seo-text);
    background: #ffffff;
    line-height: 1.65;
}

a {
    color: var(--seo-accent);
}

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

.seo-shell {
    min-height: 100vh;
}

.seo-container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 1.25rem;
}

.seo-header {
    position: sticky;
    top: 0;
    z-index: 40;
    background: rgba(16, 24, 38, 0.92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.seo-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    min-height: 74px;
}

.seo-brand img {
    width: 180px;
    height: auto;
}

.seo-header-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.seo-btn,
.seo-btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0.85rem 1.25rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 700;
}

.seo-btn {
    background: var(--seo-accent);
    color: #fff;
    box-shadow: 0 16px 32px rgba(179, 21, 0, 0.24);
}

.seo-btn:hover {
    background: var(--seo-accent-dark);
}

.seo-btn-secondary {
    background: transparent;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.seo-hero {
    padding: 5rem 0 4rem;
    background:
        radial-gradient(circle at top left, rgba(179, 21, 0, 0.12), transparent 38%),
        linear-gradient(180deg, #101826 0%, #162133 100%);
    color: #fff;
}

.seo-hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 2rem;
    align-items: center;
}

.seo-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.45rem 0.85rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    background: rgba(255, 255, 255, 0.08);
    color: #fecaca;
}

.seo-hero h1 {
    margin: 1rem 0;
    font-size: clamp(2rem, 4vw, 3.6rem);
    line-height: 1.1;
}

.seo-hero p {
    color: #d6deea;
    font-size: 1.05rem;
    max-width: 700px;
}

.seo-hero-card,
.seo-card,
.seo-lead-card {
    background: var(--seo-card);
    border: 1px solid var(--seo-border);
    border-radius: 22px;
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
}

.seo-hero-card {
    padding: 1.5rem;
}

.seo-hero-card h2,
.seo-card h2,
.seo-card h3,
.seo-lead-card h2 {
    margin-top: 0;
    color: var(--seo-text);
}

.seo-hero-list,
.seo-list {
    margin: 0;
    padding-left: 1rem;
    color: var(--seo-muted);
}

.seo-section {
    padding: 4.5rem 0;
}

.seo-section.alt {
    background: var(--seo-bg);
}

.seo-section-header {
    max-width: 760px;
    margin-bottom: 2rem;
}

.seo-section-header h2 {
    margin-bottom: 0.65rem;
    font-size: clamp(1.7rem, 3vw, 2.6rem);
}

.seo-section-header p {
    color: var(--seo-muted);
}

.seo-grid-2,
.seo-grid-3 {
    display: grid;
    gap: 1.5rem;
}

.seo-grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.seo-grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.seo-card {
    padding: 1.5rem;
}

.seo-card p,
.seo-card li {
    color: var(--seo-muted);
}

.seo-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem;
    margin-top: 1rem;
}

.seo-chip {
    padding: 0.55rem 0.85rem;
    border-radius: 999px;
    background: rgba(179, 21, 0, 0.08);
    color: var(--seo-accent);
    font-size: 0.88rem;
    font-weight: 700;
}

.seo-links {
    display: grid;
    gap: 0.65rem;
}

.seo-links a {
    text-decoration: none;
    font-weight: 700;
}

.seo-links a:hover {
    text-decoration: underline;
}

.seo-video-grid {
    display: grid;
    gap: 1.5rem;
}

.seo-video-grid.two-columns {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.seo-video-card {
    background: var(--seo-card);
    border: 1px solid var(--seo-border);
    border-radius: 22px;
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
    overflow: hidden;
}

.seo-video-frame {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background: #0f172a;
}

.seo-video-frame iframe {
    width: 100%;
    height: 100%;
    border: 0;
    display: block;
}

.seo-video-body {
    padding: 1.25rem 1.25rem 1.5rem;
}

.seo-video-body h3 {
    margin: 0 0 0.6rem;
    color: var(--seo-text);
    font-size: 1.05rem;
}

.seo-video-body p {
    margin: 0;
    color: var(--seo-muted);
}

.seo-video-meta {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    margin-top: 0.9rem;
    padding: 0.4rem 0.7rem;
    border-radius: 999px;
    background: rgba(179, 21, 0, 0.08);
    color: var(--seo-accent);
    font-size: 0.8rem;
    font-weight: 700;
}

.seo-lead-card {
    padding: 1.5rem;
}

.seo-cta-group {
    display: flex;
    width: 100%;
}

.seo-form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
}

.seo-input,
.seo-select,
.seo-textarea,
.seo-submit {
    width: 100%;
    min-height: 48px;
    border-radius: 12px;
    font: inherit;
}

.seo-input,
.seo-select,
.seo-textarea {
    border: 1px solid var(--seo-border);
    background: #fff;
    padding: 0.85rem 1rem;
    color: var(--seo-text);
}

.seo-textarea {
    min-height: 112px;
    resize: vertical;
}

.seo-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 1.25rem;
    border: none;
    background: var(--seo-accent);
    color: #fff;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 16px 32px rgba(179, 21, 0, 0.18);
    text-decoration: none;
    text-align: center;
    line-height: 1.35;
    transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.seo-cta-button {
    flex: 1;
    min-height: 56px;
}

.seo-submit:hover {
    background: var(--seo-accent-dark);
    transform: translateY(-1px);
    box-shadow: 0 20px 36px rgba(179, 21, 0, 0.22);
}

.seo-span-all {
    grid-column: 1 / -1;
}

.seo-note {
    margin-top: 0.8rem;
    color: var(--seo-muted);
    font-size: 0.88rem;
}

.seo-footer {
    padding: 2rem 0 3rem;
    background: #101826;
    color: #d6deea;
}

.seo-footer a {
    color: #fff;
}

@media (max-width: 900px) {
    .seo-hero-grid,
    .seo-grid-2,
    .seo-grid-3,
    .seo-form-grid,
    .seo-video-grid.two-columns {
        grid-template-columns: 1fr;
    }

    .seo-header-inner {
        padding: 0.75rem 0;
        align-items: flex-start;
        flex-direction: column;
    }
}