:root {
    --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --color-text: #111;
    --color-muted: #6e6e73;
    --color-accent: #e3f893;
    --color-dark: #1d1d1f;
    --color-border: rgba(0, 0, 0, 0.08);
    --max-width: 1080px;
}

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

html {
    font-family: var(--font-sans);
    -webkit-font-smoothing: antialiased;
    scroll-behavior: smooth;
}

body {
    color: var(--color-text);
    background: #fff;
    line-height: 1.5;
}

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

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

.landing-header {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
}

.landing-header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.landing-brand {
    font-size: 1.125rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.landing-nav {
    display: flex;
    align-items: center;
    gap: 12px;
}

.landing-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 18px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: background 0.15s ease, transform 0.1s ease;
}

.landing-btn:active {
    transform: scale(0.98);
}

.landing-btn-ghost {
    background: transparent;
    color: var(--color-text);
}

.landing-btn-ghost:hover {
    background: #f6f6f6;
}

.landing-btn-primary {
    background: var(--color-dark);
    color: #fff;
}

.landing-btn-primary:hover {
    background: #424245;
}

.landing-hero {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 72px 24px 48px;
    text-align: center;
}

.landing-hero-badge {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin-bottom: 20px;
}

.landing-hero h1 {
    font-size: clamp(2rem, 5vw, 3.25rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.1;
    max-width: 16ch;
    margin: 0 auto 20px;
}

.landing-hero-lead {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--color-muted);
    max-width: 42ch;
    margin: 0 auto 32px;
}

.landing-hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}

.landing-hero-cta .landing-btn {
    min-width: 140px;
    padding: 14px 24px;
    font-size: 15px;
}

.landing-preview {
    max-width: 720px;
    margin: 0 auto 80px;
    padding: 0 24px;
}

.landing-preview-card {
    border-radius: 20px;
    background: linear-gradient(135deg, #e53935 0%, #7cb342 50%, #29b6f6 100%);
    padding: 24px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
    color: #fff;
    text-align: left;
}

.landing-preview-card h2 {
    font-size: 1.25rem;
    margin-bottom: 8px;
}

.landing-preview-card p {
    font-size: 14px;
    opacity: 0.9;
    margin-bottom: 16px;
}

.landing-preview-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.landing-preview-pill {
    font-size: 11px;
    padding: 4px 10px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.55);
}

.landing-features {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px 80px;
}

.landing-section-title {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    text-align: center;
    margin-bottom: 40px;
}

.landing-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

.landing-feature {
    padding: 28px 24px;
    border-radius: 16px;
    border: 1px solid var(--color-border);
    background: #fafafa;
}

.landing-feature-icon {
    font-size: 28px;
    margin-bottom: 12px;
}

.landing-feature h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.landing-feature p {
    font-size: 14px;
    color: var(--color-muted);
    line-height: 1.55;
}

.landing-cta-band {
    background: var(--color-dark);
    color: #fff;
    padding: 64px 24px;
    text-align: center;
}

.landing-cta-band h2 {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}

.landing-cta-band p {
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 24px;
}

.landing-cta-band .landing-btn-primary {
    background: #fff;
    color: var(--color-dark);
}

.landing-cta-band .landing-btn-primary:hover {
    background: #f0f0f0;
}

.landing-footer {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 32px 24px 48px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    font-size: 13px;
    color: var(--color-muted);
    border-top: 1px solid var(--color-border);
}

.landing-footer-links {
    display: flex;
    gap: 20px;
}

.landing-footer-links a:hover {
    color: var(--color-text);
}

@media (max-width: 600px) {
    .landing-nav .landing-btn-ghost {
        display: none;
    }

    .landing-hero {
        padding-top: 48px;
    }
}