:root {
    --osp-primary: #0d6efd;
    --osp-primary-dark: #084298;
    --osp-accent: #12aeda;
    --osp-text: #172033;
    --osp-muted: #5f6b7a;
    --osp-border: #dfe6ee;
    --osp-bg-soft: #f5f9fc;
    --osp-white: #ffffff;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--osp-text);
    background: var(--osp-white);
    font-family: Inter, "Segoe UI", Arial, sans-serif;
}

.osp-container {
    width: min(1180px, calc(100% - 40px));
    margin: 0 auto;
}

.osp-header {
    position: sticky;
    top: 0;
    z-index: 1200;
    background: #ffffff;
    border-bottom: 1px solid var(--osp-border);
    box-shadow: 0 2px 10px rgba(14, 42, 71, 0.06);
}

.osp-header-inner {
    min-height: 78px;
    display: flex;
    align-items: center;
    gap: 28px;
}

.osp-brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--osp-primary-dark);
    text-decoration: none;
    white-space: nowrap;
}

.osp-brand-mark {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, var(--osp-primary-dark), var(--osp-accent));
    color: #fff;
    font-weight: 800;
}

.osp-brand strong {
    display: block;
    font-size: 1.12rem;
    line-height: 1.1;
}

.osp-brand small {
    display: block;
    color: var(--osp-muted);
    margin-top: 2px;
}

.osp-nav {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-left: auto;
}

.osp-nav a,
.osp-footer a {
    color: var(--osp-text);
    text-decoration: none;
}

.osp-nav a {
    font-weight: 600;
    font-size: 0.96rem;
}

.osp-nav a:hover,
.osp-footer a:hover {
    color: var(--osp-primary);
}

.osp-auth-actions {
    display: flex;
    gap: 10px;
}

.osp-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0 18px;
    border-radius: 8px;
    font-weight: 700;
    text-decoration: none;
    border: 1px solid transparent;
}

.osp-btn-primary {
    background: var(--osp-primary);
    color: #fff !important;
}

.osp-btn-primary:hover {
    background: var(--osp-primary-dark);
}

.osp-btn-outline {
    border-color: var(--osp-primary);
    color: var(--osp-primary) !important;
    background: #fff;
}

.osp-btn-outline:hover {
    background: #edf5ff;
}

.osp-hero {
    padding: 86px 0 74px;
    background:
        radial-gradient(circle at top right, rgba(18,174,218,0.12), transparent 34%),
        linear-gradient(180deg, #ffffff 0%, #f5f9fc 100%);
}

.osp-hero-grid {
    display: grid;
    grid-template-columns: 1.2fr .8fr;
    gap: 58px;
    align-items: center;
}

.osp-eyebrow {
    display: inline-block;
    color: var(--osp-primary);
    background: #eaf3ff;
    border-radius: 999px;
    padding: 7px 12px;
    font-weight: 700;
    margin-bottom: 18px;
}

.osp-hero h1,
.osp-page-hero h1 {
    font-size: clamp(2.4rem, 5vw, 4.6rem);
    line-height: 1.03;
    margin: 0 0 20px;
    letter-spacing: -0.04em;
}

.osp-hero p,
.osp-page-hero p {
    font-size: 1.15rem;
    color: var(--osp-muted);
    line-height: 1.75;
}

.osp-hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 28px;
}

.osp-hero-card {
    padding: 28px;
    background: #fff;
    border: 1px solid var(--osp-border);
    border-radius: 18px;
    box-shadow: 0 18px 50px rgba(20, 62, 100, .10);
}

.osp-hero-card h2 {
    margin-top: 0;
}

.osp-check-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.osp-check-list li {
    position: relative;
    padding: 10px 0 10px 30px;
    color: var(--osp-text);
}

.osp-check-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--osp-primary);
    font-weight: 900;
}

.osp-section {
    padding: 72px 0;
}

.osp-section-soft {
    background: var(--osp-bg-soft);
}

.osp-section-title {
    max-width: 760px;
    margin-bottom: 34px;
}

.osp-section-title h2 {
    font-size: clamp(1.9rem, 4vw, 3rem);
    margin: 0 0 12px;
}

.osp-section-title p,
.osp-card p,
.osp-copy p,
.osp-copy li {
    color: var(--osp-muted);
    line-height: 1.75;
}

.osp-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

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

.osp-card {
    background: #fff;
    border: 1px solid var(--osp-border);
    border-radius: 14px;
    padding: 26px;
    height: 100%;
}

.osp-card h3 {
    margin: 0 0 10px;
}

.osp-page-hero {
    padding: 64px 0 48px;
    background: var(--osp-bg-soft);
    border-bottom: 1px solid var(--osp-border);
}

.osp-page-hero h1 {
    font-size: clamp(2.2rem, 4vw, 3.8rem);
}

.osp-copy {
    max-width: 900px;
}

.osp-copy h2 {
    margin-top: 38px;
}

.osp-price {
    font-size: 2.3rem;
    font-weight: 800;
    color: var(--osp-primary-dark);
}

.osp-form-shell {
    max-width: 820px;
    margin: 0 auto;
    background: #fff;
    border: 1px solid var(--osp-border);
    border-radius: 14px;
    padding: 30px;
}

.osp-form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
}

.osp-field label {
    display: block;
    font-weight: 700;
    margin-bottom: 7px;
}

.osp-field input,
.osp-field select,
.osp-field textarea {
    width: 100%;
    box-sizing: border-box;
    border: 1px solid #cdd7e1;
    border-radius: 8px;
    padding: 11px 12px;
    font: inherit;
}

.osp-field-full {
    grid-column: 1 / -1;
}

.osp-note {
    background: #eef7ff;
    border-left: 4px solid var(--osp-primary);
    padding: 16px 18px;
    border-radius: 8px;
    color: var(--osp-muted);
}

.osp-cta {
    background: linear-gradient(135deg, var(--osp-primary-dark), var(--osp-primary));
    color: #fff;
    border-radius: 18px;
    padding: 42px;
}

.osp-cta p {
    color: rgba(255,255,255,.86);
}

.osp-cta .osp-btn-outline {
    border-color: #fff;
    color: #fff !important;
    background: transparent;
}

.osp-footer {
    margin-top: 40px;
    padding: 52px 0 20px;
    background: #0b1f33;
    color: #dbe6ef;
}

.osp-footer-grid {
    display: grid;
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: 32px;
}

.osp-footer h3 {
    color: #fff;
    margin-top: 0;
    font-size: 1rem;
}

.osp-footer a {
    color: #dbe6ef;
    display: block;
    margin: 9px 0;
}

.osp-footer p {
    line-height: 1.7;
    color: #b9c8d6;
}

.osp-footer-brand {
    font-weight: 800;
    color: #fff;
    font-size: 1.2rem;
}

.osp-footer-bottom {
    border-top: 1px solid rgba(255,255,255,.12);
    margin-top: 34px;
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    gap: 20px;
    color: #9fb2c4;
    font-size: .92rem;
}

@media (max-width: 980px) {
    .osp-nav {
        display: none;
    }

    .osp-auth-actions {
        margin-left: auto;
    }

    .osp-hero-grid,
    .osp-grid-3,
    .osp-grid-2,
    .osp-footer-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .osp-header-inner {
        min-height: 68px;
        gap: 10px;
    }

    .osp-brand small {
        display: none;
    }

    .osp-auth-actions .osp-btn {
        padding: 0 12px;
    }

    .osp-hero {
        padding-top: 54px;
    }

    .osp-form-grid {
        grid-template-columns: 1fr;
    }

    .osp-field-full {
        grid-column: auto;
    }

    .osp-footer-bottom {
        flex-direction: column;
    }
}

.osp-public-shell {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    width: 100%;
}

.osp-public-main {
    display: block;
    width: 100%;
    flex: 1;
}

    .osp-public-main > section {
        display: block;
        width: 100%;
    }