body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    background:
        radial-gradient(circle at top left, rgba(59, 130, 246, 0.18), transparent 34%),
        radial-gradient(circle at bottom right, rgba(15, 23, 42, 0.85), transparent 38%),
        #070d1a;
    color: #f8fafc;
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.7;
}

header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(8, 13, 26, 0.88);
    border-bottom: 1px solid rgba(148, 163, 184, 0.18);
    padding: 18px 8%;
    backdrop-filter: blur(16px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.18);
}

.logo img {
    max-height: 64px;
    width: auto;
}

.tagline {
    font-size: 14px;
    color: #94a3b8;
    margin-top: 6px;
    letter-spacing: 1px;
}

nav {
    margin-top: 20px;
}

nav a {
    color: #cbd5e1;
    text-decoration: none;
    margin-right: 24px;
    font-size: 15px;
    font-weight: 600;
    transition: color 0.2s ease, border-color 0.2s ease, opacity 0.2s ease;
}

nav a:hover,
nav a.active {
    color: #93c5fd;
}

nav a.active {
    border-bottom: 2px solid #93c5fd;
    padding-bottom: 6px;
}

.hero {
    padding: 110px 8% 90px;
    text-align: center;
    background: linear-gradient(to bottom, rgba(15, 23, 42, 0.92), rgba(8, 13, 26, 0.82));
}

.hero h1 {
    max-width: 960px;
    margin: 0 auto 28px;
    font-size: clamp(3rem, 7vw, 5.6rem);
    line-height: 1.05;
    font-weight: 700;
    letter-spacing: -0.04em;
}

.hero p {
    max-width: 760px;
    margin: 0 auto;
    font-size: 1.2rem;
    color: #cbd5e1;
}

.hero-actions {
    margin-top: 38px;
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.button-primary,
.button-secondary {
    display: inline-block;
    padding: 15px 24px;
    border-radius: 14px;
    text-decoration: none;
    font-weight: 700;
    transition: all 0.25s ease;
}

.button-primary {
    background: #93c5fd;
    color: #07111f;
}

.button-secondary {
    border: 1px solid rgba(147, 197, 253, 0.7);
    color: #bfdbfe;
}

.button-primary:hover,
.button-secondary:hover {
    transform: translateY(-2px);
}

.button-primary:hover {
    box-shadow: 0 16px 38px rgba(147, 197, 253, 0.24);
}

.button-secondary:hover {
    background: rgba(147, 197, 253, 0.08);
}

.hero-preview {
    margin-top: 56px;
    display: flex;
    justify-content: center;
}

.preview-card {
    width: min(620px, 100%);
    background: rgba(15, 23, 42, 0.78);
    border: 1px solid rgba(148, 163, 184, 0.18);
    border-radius: 26px;
    padding: 28px;
    text-align: left;
    box-shadow: 0 30px 90px rgba(0, 0, 0, 0.36);
    backdrop-filter: blur(14px);
}

.preview-header {
    font-weight: 700;
    color: #f8fafc;
    margin-bottom: 18px;
}

.preview-row {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    padding: 14px 0;
    border-top: 1px solid rgba(148, 163, 184, 0.12);
    color: #cbd5e1;
}

.status-good {
    color: #86efac;
    font-weight: 700;
}

.section {
    padding: 78px 8%;
    position: relative;
}

.section.alt-section {
    background: rgba(15, 23, 42, 0.45);
}

.section h2 {
    max-width: 900px;
    margin: 0 auto 20px;
    text-align: center;
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.15;
    color: #bfdbfe;
}

.section p {
    max-width: 820px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
    color: #cbd5e1;
    font-size: 18px;
}

.section-label {
    display: inline-block;
    margin-bottom: 14px;
    color: #93c5fd;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.section-header {
    max-width: 880px;
    margin: 0 auto 36px;
    text-align: center;
}

.cards,
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
    max-width: 1120px;
    margin: 42px auto 0;
}

.card,
.feature-card {
    background: rgba(15, 23, 42, 0.76);
    border: 1px solid rgba(148, 163, 184, 0.16);
    border-radius: 24px;
    padding: 32px;
    box-shadow: 0 22px 70px rgba(0, 0, 0, 0.24);
    backdrop-filter: blur(12px);
    transition: all 0.25s ease;
}

.card:hover,
.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(147, 197, 253, 0.32);
}

.card h3,
.feature-card h3 {
    margin-top: 0;
    margin-bottom: 12px;
    color: #93c5fd;
}

.card p,
.feature-card p {
    text-align: left;
    color: #cbd5e1;
    line-height: 1.65;
    font-size: 16px;
}

.card a,
.feature-card a {
    color: #93c5fd;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s ease;
}

.card a:hover,
.feature-card a:hover {
    color: #dbeafe;
    text-decoration: underline;
}

.dashboard-preview {
    max-width: 1200px;
    margin: 0 auto;
    border-radius: 28px;
    overflow: hidden;
    border: 1px solid rgba(148, 163, 184, 0.18);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
}

.dashboard-preview img {
    width: 100%;
    display: block;
}

.trust-banner {
    padding: 90px 8%;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    background: rgba(3, 7, 18, 0.45);
}

.trust-banner h2 {
    max-width: 900px;
    margin: 0 auto;
    font-size: clamp(2rem, 4vw, 3.2rem);
    line-height: 1.2;
}

footer {
    padding: 80px 8% 50px;
    background: rgba(3, 7, 18, 0.82);
}

.footer-brand {
    max-width: 620px;
    margin: 0 auto 40px;
    text-align: center;
}

.footer-brand h3 {
    font-size: 1.6rem;
    margin-bottom: 14px;
}

.footer-brand p {
    color: #94a3b8;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 18px;
    margin-bottom: 42px;
}

.footer-links a {
    color: #cbd5e1;
    text-decoration: none;
}

.footer-links a:hover {
    color: #93c5fd;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    padding-top: 28px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    font-size: 0.92rem;
    color: #94a3b8;
}

@media (max-width: 768px) {
    header {
        padding: 18px 22px;
    }

    nav {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
    }

    nav a {
        margin-right: 0;
        font-size: 14px;
    }

    .hero {
        padding: 72px 22px;
    }

    .hero h1 {
        font-size: 3rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .button-primary,
    .button-secondary {
        text-align: center;
    }

    .preview-row {
        flex-direction: column;
        gap: 4px;
    }

    .section {
        padding: 64px 22px;
    }

    .section p {
        font-size: 16px;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* Premium motion and visual polish */

html {
    scroll-behavior: smooth;
}

.hero {
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 50% 10%, rgba(147, 197, 253, 0.13), transparent 34%),
        radial-gradient(circle at 20% 80%, rgba(59, 130, 246, 0.08), transparent 32%);
    pointer-events: none;
}

.hero>* {
    position: relative;
    z-index: 1;
}

.preview-card,
.dashboard-preview,
.card,
.feature-card {
    animation: softReveal 0.7s ease both;
}

.preview-card {
    box-shadow:
        0 30px 90px rgba(0, 0, 0, 0.36),
        0 0 70px rgba(147, 197, 253, 0.08);
}

.dashboard-preview {
    box-shadow:
        0 30px 80px rgba(0, 0, 0, 0.35),
        0 0 90px rgba(147, 197, 253, 0.08);
}

.section {
    border-top: 1px solid rgba(148, 163, 184, 0.08);
}

.trust-banner {
    background:
        radial-gradient(circle at center, rgba(147, 197, 253, 0.10), transparent 42%),
        rgba(3, 7, 18, 0.45);
}

@keyframes softReveal {
    from {
        opacity: 0;
        transform: translateY(14px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .preview-card,
    .dashboard-preview,
    .card,
    .feature-card {
        animation: none;
    }

    .card:hover,
    .feature-card:hover,
    .button-primary:hover,
    .button-secondary:hover {
        transform: none;
    }
}

/* Product showcase preview */

.product-showcase {
    max-width: 1180px;
    margin: 46px auto 0;
    display: grid;
    grid-template-columns: 240px 1fr;
    background: rgba(15, 23, 42, 0.78);
    border: 1px solid rgba(148, 163, 184, 0.18);
    border-radius: 30px;
    overflow: hidden;
    box-shadow:
        0 32px 90px rgba(0, 0, 0, 0.36),
        0 0 100px rgba(147, 197, 253, 0.08);
}

.showcase-sidebar {
    background: rgba(3, 7, 18, 0.55);
    border-right: 1px solid rgba(148, 163, 184, 0.12);
    padding: 28px;
}

.showcase-brand {
    font-weight: 800;
    color: #f8fafc;
    margin-bottom: 28px;
    letter-spacing: -0.02em;
}

.showcase-nav {
    padding: 12px 14px;
    margin-bottom: 8px;
    border-radius: 14px;
    color: #94a3b8;
    font-weight: 600;
}

.showcase-nav.active {
    background: rgba(147, 197, 253, 0.12);
    color: #bfdbfe;
}

.showcase-main {
    padding: 32px;
}

.showcase-topbar {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 24px;
    margin-bottom: 28px;
}

.showcase-topbar h3 {
    margin: 4px 0 0;
    font-size: 2rem;
    color: #f8fafc;
}

.showcase-pill {
    padding: 10px 14px;
    border-radius: 999px;
    background: rgba(134, 239, 172, 0.12);
    border: 1px solid rgba(134, 239, 172, 0.24);
    color: #bbf7d0;
    font-size: 0.9rem;
    font-weight: 700;
    white-space: nowrap;
}

.showcase-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.showcase-panel {
    background: rgba(8, 13, 26, 0.58);
    border: 1px solid rgba(148, 163, 184, 0.14);
    border-radius: 22px;
    padding: 24px;
}

.showcase-panel span {
    display: block;
    color: #94a3b8;
    font-size: 0.9rem;
    margin-bottom: 8px;
}

.showcase-panel strong {
    display: block;
    color: #93c5fd;
    font-size: 1.35rem;
    margin-bottom: 10px;
}

.showcase-panel p {
    text-align: left;
    margin: 0;
    color: #cbd5e1;
    font-size: 0.98rem;
}

@media (max-width: 900px) {
    .product-showcase {
        grid-template-columns: 1fr;
    }

    .showcase-sidebar {
        border-right: none;
        border-bottom: 1px solid rgba(148, 163, 184, 0.12);
    }

    .showcase-topbar {
        flex-direction: column;
    }

    .showcase-grid {
        grid-template-columns: 1fr;
    }
}

/* Responsive navigation and mobile UX polish */

@media (max-width: 768px) {
    header {
        position: sticky;
        top: 0;
        padding: 16px 18px;
    }

    .logo img {
        max-height: 52px;
    }

    .tagline {
        font-size: 12px;
        line-height: 1.4;
        max-width: 320px;
    }

    nav {
        margin-top: 16px;
        display: flex;
        flex-wrap: nowrap;
        gap: 10px;
        overflow-x: auto;
        padding-bottom: 6px;
        scrollbar-width: none;
    }

    nav::-webkit-scrollbar {
        display: none;
    }

    nav a {
        flex: 0 0 auto;
        margin-right: 0;
        padding: 6px 4px;
        background: transparent;
        border: none;
        font-size: 13px;
        color: #cbd5e1;
    }

    nav a.active {
        background: transparent;
        border: none;
        border-bottom: 2px solid #93c5fd;
        border-radius: 0;
        padding-bottom: 6px;
    }

    .hero {
        padding-top: 58px;
    }

    .hero h1 {
        font-size: clamp(2.35rem, 12vw, 3.2rem);
    }

    .preview-card,
    .product-showcase,
    .dashboard-preview {
        border-radius: 22px;
    }

    .showcase-main {
        padding: 24px;
    }

    .showcase-sidebar {
        padding: 22px;
    }

    .showcase-nav {
        display: inline-block;
        margin-right: 6px;
    }

    .cards,
    .feature-grid {
        margin-top: 30px;
    }

    .card,
    .feature-card,
    .showcase-panel {
        padding: 24px;
    }
}

@media (max-width: 480px) {
    .hero-actions {
        gap: 10px;
    }

    .button-primary,
    .button-secondary {
        padding: 14px 18px;
        font-size: 0.95rem;
    }

    .section {
        padding: 56px 18px;
    }

    .section h2 {
        font-size: 2rem;
    }

    .trust-banner {
        padding: 70px 20px;
    }

    .footer-links {
        gap: 12px;
    }
}