/*
 * Global
 */

 :root {
    --site-primary: #0d6efd;
    --site-dark: #212529;
    --site-muted: #6c757d;
    --site-border: #dee2e6;
    --site-background: #f8f9fa;
}

html,
body {
    height: 100%;
    overflow: hidden;
}

html {
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding-bottom: 0;
}

main {
    flex: 1;
}

.top-header {
    width: 100%;
    padding: 5px 0;

    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);

    border-bottom: 1px solid rgba(0, 0, 0, 0.08);

    position: relative;
    z-index: 900;
}

.top-header-content {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 24px;
}

.top-header-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;

    color: #555;
    text-decoration: none;

    font-size: 0.85rem;
    font-weight: 500;

    transition:
        color 0.2s ease,
        opacity 0.2s ease;
}

.top-header-link:hover {
    color: #111;
}

.top-header-link i {
    font-size: 1rem;
}

/* Mobile */
@media (max-width: 576px) {
    .top-header {
        padding: 9px 0;
    }

    .top-header-content {
        justify-content: center;
        gap: 18px;
    }

    .top-header-link {
        font-size: 0.8rem;
    }
}

/*
 * Single-page application layout
 */

 .app-main {
    height: 100vh;
    overflow: hidden;
}

.page-section {
    display: none;
    height: 100vh;
    overflow-y: auto;
    padding-bottom: 100px;
}

.page-section.active-section {
    display: block;
}

/*
 * Hero
 */

.hero-section {
    padding: 4rem 0 0rem;

    background:
    radial-gradient(
        circle at 80% 20%,
        rgba(13, 110, 253, 0.10),
        transparent 35%
    ),
    linear-gradient(
        180deg,
        #ffffff 0%,
        #f8f9fa 100%
    );
}

/*
 * General sections
 */

.section-padding {
    padding-top: 2rem;
    padding-bottom: 3rem;
}

/*
 * Feature cards
 */

.feature-card {
    background: #ffffff;
    border: 1px solid var(--site-border);
    border-radius: 1rem;
    padding: 2rem;

    transition:
        transform 0.2s ease,
        box-shadow 0.2s ease;
}

.feature-card:hover {
    transform: translateY(-4px);

    box-shadow:
        0 0.75rem 1.5rem rgba(0, 0, 0, 0.08);
}

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    width: 3rem;
    height: 3rem;

    margin-bottom: 1.25rem;

    border-radius: 0.75rem;
    background: rgba(13, 110, 253, 0.1);

    font-size: 1.35rem;
}

/*
 * Call to action
 */

.cta-card {
    padding: 4rem 2rem;

    border: 1px solid var(--site-border);
    border-radius: 1.25rem;

    background:
        linear-gradient(
            135deg,
            #f8f9fa,
            #ffffff
        );
}

/*
 * Footer
 */

 .site-footer {
    height: 0px;
    padding: 1rem 0;

    display: flex;
    align-items: center;

    color: var(--site-muted);

    font-size: 0.9rem;

    border-top: 1px solid var(--site-border);
    background: #ffffff;
}

/*
 * Buttons
 */

.btn {
    border-radius: 0.6rem;
}

/*
 * Mobile adjustments
 */

@media (max-width: 767.98px) {
    .page-section {
        padding-bottom: 180px;
    }

    .hero-section {
        padding: 2.5rem 0 3.5rem;
        text-align: center;
    }

    .section-padding {
        padding-top: 3.5rem;
        padding-bottom: 3.5rem;
    }

    .hero-section .btn {
        width: 100%;
    }

    .feature-card {
        padding: 2.5rem;
    }
}

/*
 * Floating app-style navigation
 */

.app-nav {
    position: fixed;
    left: 50%;
    bottom: 40px;
    transform: translateX(-50%);

    display: flex;
    align-items: center;
    gap: 8px;

    padding: 8px;

    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);

    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 20px;

    box-shadow:
        0 10px 30px rgba(0, 0, 0, 0.12),
        0 2px 8px rgba(0, 0, 0, 0.06);

    z-index: 1000;
}

.app-nav .nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;

    min-width: 100px;
    padding: 9px 14px;

    border-radius: 14px;

    color: #555;
    text-decoration: none;

    font-size: 0.75rem;
    font-weight: 500;

    transition:
        background-color 0.2s ease,
        color 0.2s ease,
        transform 0.2s ease;
}

.app-nav .nav-item:hover {
    background: rgba(0, 0, 0, 0.05);
    color: #111;
}

.app-nav .nav-item.active {
    background: #111;
    color: white;
}

.nav-icon {
    font-size: 1.25rem;
    line-height: 1;
    margin-bottom: 4px;
}
/* Circular navbar */
/* .app-nav {
    position: fixed;
    left: 50%;
    bottom: 40px;
    transform: translateX(-50%);

    display: flex;
    align-items: center;
    gap: 8px;

    padding: 8px;

    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);

    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 999px;

    box-shadow:
        0 10px 30px rgba(0, 0, 0, 0.12),
        0 2px 8px rgba(0, 0, 0, 0.06);

    z-index: 1000;
}

.app-nav .nav-item {
    width: 65px;
    height: 65px;

    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;

    padding: 0;

    border-radius: 50%;

    color: #555;
    text-decoration: none;

    font-size: 0.75rem;
    font-weight: 500;

    transition:
        background-color 0.2s ease,
        color 0.2s ease,
        transform 0.2s ease;
}

.app-nav .nav-item:hover {
    background: rgba(0, 0, 0, 0.05);
    color: #111;
}

.app-nav .nav-item.active {
    background: #111;
    color: white;
}

.nav-icon {
    font-size: 1.25rem;
    line-height: 1;
    margin-bottom: 4px;
} */


/*
 * Mobile navigation
 */

@media (max-width: 576px) {
    .app-nav {
        bottom: 35px;
        width: calc(100% - 24px);
        justify-content: space-around;
    }

    .app-nav .nav-item {
        flex: 1;
        min-width: 0;
    }
}