:root {
    --bg: #f4f8ff;
    --bg-gradient: radial-gradient(circle at 20% -5%, #dbeafe 0, rgba(219, 234, 254, 0.2) 35%, transparent 60%), radial-gradient(circle at 90% 10%, #e0f2fe 0, rgba(224, 242, 254, 0.2) 30%, transparent 58%);
    --surface: rgba(255, 255, 255, 0.75);
    --surface-strong: #ffffff;
    --text: #0f172a;
    --muted: #475569;
    --primary: #0a66ff;
    --primary-strong: #0050d6;
    --ring: rgba(10, 102, 255, 0.28);
    --border: rgba(15, 23, 42, 0.1);
    --shadow: 0 18px 45px rgba(2, 15, 36, 0.12);
    --chip: rgba(255, 255, 255, 0.92);
    --orb-a: rgba(5, 150, 105, 0.22);
    --orb-b: rgba(14, 116, 144, 0.18);
}

body[data-theme="dark"] {
    --bg: #050b16;
    --bg-gradient: radial-gradient(circle at 10% 5%, rgba(37, 99, 235, 0.28) 0, rgba(37, 99, 235, 0.06) 36%, transparent 62%), radial-gradient(circle at 95% 15%, rgba(16, 185, 129, 0.2) 0, rgba(16, 185, 129, 0.06) 35%, transparent 58%);
    --surface: rgba(11, 18, 32, 0.76);
    --surface-strong: #0b1220;
    --text: #e2e8f0;
    --muted: #94a3b8;
    --primary: #60a5fa;
    --primary-strong: #3b82f6;
    --ring: rgba(96, 165, 250, 0.35);
    --border: rgba(148, 163, 184, 0.18);
    --shadow: 0 22px 55px rgba(0, 0, 0, 0.45);
    --chip: rgba(15, 23, 42, 0.84);
    --orb-a: rgba(59, 130, 246, 0.24);
    --orb-b: rgba(20, 184, 166, 0.18);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--text);
    background: var(--bg-gradient), var(--bg);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
}

h1,
h2,
h3 {
    font-family: "Space Grotesk", "Avenir Next", sans-serif;
    line-height: 1.2;
    margin: 0;
}

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

p {
    margin: 0;
}

.container {
    width: min(1120px, 92vw);
    margin: 0 auto;
}

.section {
    padding: 4.5rem 0;
    position: relative;
    z-index: 1;
}

.eyebrow {
    display: inline-block;
    font-weight: 700;
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 0.85rem;
}

.section-text,
.hero-text,
.footer-text {
    color: var(--muted);
}

.bg-orb {
    position: fixed;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    filter: blur(2px);
    pointer-events: none;
    transform: translate3d(0, var(--parallax-y, 0), 0);
}

.orb-one {
    top: 7vh;
    left: -6rem;
    background: var(--orb-a);
}

.orb-two {
    top: 52vh;
    right: -5rem;
    background: var(--orb-b);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    backdrop-filter: blur(8px);
    background: color-mix(in srgb, var(--surface-strong) 86%, transparent);
    border-bottom: 1px solid var(--border);
}

.header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.75rem 0;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.55rem;
}

.brand-icon {
    font-size: 1.45rem;
}

.brand-text {
    font-weight: 700;
    font-size: 0.95rem;
}

.nav-links {
    display: none;
    align-items: center;
    gap: 1rem;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--muted);
}

.nav-links a {
    transition: color 0.2s ease;
}

.nav-links a:hover,
.nav-links a:focus-visible {
    color: var(--text);
}

.theme-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    border-radius: 999px;
    padding: 0.45rem 0.85rem;
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
}

.theme-toggle:focus-visible,
.btn:focus-visible {
    outline: 2px solid var(--ring);
    outline-offset: 2px;
}

.hero {
    padding-top: 4rem;
}

.hero-grid {
    display: grid;
    gap: 2rem;
    align-items: center;
}

.hero-copy h1 {
    font-size: clamp(1.85rem, 6.8vw, 3.45rem);
    margin-bottom: 1rem;
}

.hero-text {
    font-size: clamp(1rem, 3.2vw, 1.15rem);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem;
    margin-top: 1.4rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    border: 1px solid transparent;
    padding: 0.75rem 1.2rem;
    font-weight: 700;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    background: linear-gradient(120deg, var(--primary), var(--primary-strong));
    color: #fff;
    box-shadow: 0 10px 28px color-mix(in srgb, var(--primary) 35%, transparent);
}

.btn-ghost {
    border-color: var(--border);
    background: var(--surface);
}

.hero-points {
    list-style: none;
    padding: 0;
    margin: 1.35rem 0 0;
    display: grid;
    gap: 0.45rem;
    color: var(--muted);
    font-weight: 500;
}

.hero-visual {
    position: relative;
    max-width: 420px;
    margin: 0 auto;
    transform: translate3d(0, var(--parallax-y, 0), 0);
}

.hero-visual img {
    width: 100%;
    height: auto;
    border-radius: 1.35rem;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    background: var(--surface-strong);
}

.floating-chip {
    position: absolute;
    padding: 0.45rem 0.75rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--chip);
    box-shadow: var(--shadow);
    font-size: 0.84rem;
    font-weight: 700;
}

.chip-rating {
    left: -0.5rem;
    top: 1.2rem;
}

.chip-topic {
    right: -0.25rem;
    bottom: 1rem;
}

.feature-grid,
.review-grid {
    display: grid;
    gap: 1rem;
    margin-top: 1.6rem;
}

.feature-card,
.review-card,
.cta-box,
.faq-item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 1rem;
    box-shadow: var(--shadow);
}

.feature-card,
.review-card {
    padding: 1.1rem;
}

.feature-icon {
    width: 2.35rem;
    height: 2.35rem;
    border-radius: 0.8rem;
    display: grid;
    place-items: center;
    background: color-mix(in srgb, var(--primary) 14%, transparent);
    margin-bottom: 0.8rem;
    font-size: 1.1rem;
}

.feature-card h3,
.review-card h3,
.faq-item h3 {
    font-size: 1.05rem;
    margin-bottom: 0.5rem;
}

.feature-card p,
.review-card p {
    color: var(--muted);
}

.review-stars {
    margin-bottom: 0.5rem;
}

.review-name {
    margin-top: 0.75rem;
    font-weight: 700;
    color: var(--text);
}

.cta {
    padding-top: 2.5rem;
    padding-bottom: 1.5rem;
}

.cta-box {
    text-align: center;
    padding: 1.7rem 1.1rem;
    background: linear-gradient(145deg, color-mix(in srgb, var(--primary) 16%, var(--surface) 84%), var(--surface));
}

.cta-box h2 {
    font-size: clamp(1.45rem, 6vw, 2.2rem);
    margin-bottom: 0.7rem;
}

.cta-box p {
    color: var(--muted);
    margin-bottom: 1.05rem;
}

.faq-list {
    margin-top: 1.4rem;
    display: grid;
    gap: 0.8rem;
}

.faq-item {
    padding: 0.8rem 1rem;
}

.faq-item summary {
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.8rem;
    cursor: pointer;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-toggle {
    font-size: 1.3rem;
    line-height: 1;
    color: var(--primary);
}

.faq-item p {
    margin-top: 0.55rem;
    color: var(--muted);
}

.site-footer {
    margin-top: 2.5rem;
    border-top: 1px solid var(--border);
    background: color-mix(in srgb, var(--surface) 76%, transparent);
}

.footer-grid {
    display: grid;
    gap: 1.25rem;
    padding: 2rem 0;
}

.footer-brand {
    font-weight: 700;
    margin-bottom: 0.35rem;
}

.site-footer h3 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.site-footer ul {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 0.35rem;
}

.site-footer a {
    color: var(--muted);
}

.site-footer a:hover,
.site-footer a:focus-visible {
    color: var(--text);
}

.footer-bottom {
    border-top: 1px solid var(--border);
    padding: 1rem 0 1.35rem;
    color: var(--muted);
    font-size: 0.9rem;
}

.reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (min-width: 700px) {
    .nav-links {
        display: flex;
    }

    .brand-text {
        font-size: 1.05rem;
    }

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

    .cta-box {
        padding: 2rem;
    }
}

@media (min-width: 980px) {
    .hero-grid {
        grid-template-columns: 1.1fr 0.9fr;
        gap: 2.5rem;
    }

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

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

    .footer-grid {
        grid-template-columns: 1.2fr 0.8fr 1fr;
    }

    .hero {
        padding-top: 5.2rem;
    }
}

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

    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .parallax,
    .bg-orb,
    .hero-visual {
        transform: none;
    }

    .btn,
    .nav-links a {
        transition: none;
    }
}