:root {
    --nav-bg: linear-gradient(
        135deg,
        #fffef8 0%,
        #f4faf9 52%,
        #ecf6f5 100%
    );
    --nav-bg-overlay:
        radial-gradient(circle at 8% 88%, rgba(2, 65, 63, 0.08), transparent 38%),
        radial-gradient(circle at 92% 18%, rgba(255, 161, 99, 0.1), transparent 32%);
    --nav-text: var(--color-primary, #02413f);
    --nav-muted: rgba(2, 65, 63, 0.72);
    --nav-accent: var(--color-primary, #02413f);
    --nav-shadow: 0 18px 45px rgba(2, 65, 63, 0.12), 0 8px 20px rgba(2, 65, 63, 0.08);
    --nav-radius: 999px;
    --header-offset: var(--layout-gutter);
}

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--header-offset) var(--layout-gutter) 0;
    pointer-events: none;
    transform: translateY(0);
    transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

.site-header.nav-hidden {
    transform: translateY(calc(-100% - 1rem));
}

.site-header.nav-visible {
    transform: translateY(0);
}

.navbar {
    pointer-events: auto;
    max-width: var(--layout-max-width);
    margin: 0 auto;
    min-height: 72px;
    padding: 0.65rem 0.85rem 0.65rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    background: var(--nav-bg-overlay), var(--nav-bg);
    border-radius: var(--nav-radius);
    box-shadow: var(--nav-shadow), inset 0 1px 0 rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(2, 65, 63, 0.12);
    font-family: var(--font-family-base, "Poppins", sans-serif);
}

.navbar-logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    text-decoration: none;
}

.logo-circle {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: #ffffff;
    display: grid;
    place-items: center;
    box-shadow: 0 8px 20px rgba(2, 65, 63, 0.15);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.navbar-logo:hover .logo-circle {
    transform: scale(1.05);
    box-shadow: 0 10px 24px rgba(2, 65, 63, 0.22);
}

.logo-flame {
    width: 22px;
    height: 22px;
}

.logo-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    display: block;
}

.navbar-menu {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    min-width: 0;
}

.navbar-links {
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
    gap: clamp(0.75rem, 2vw, 2rem);
    margin: 0;
    padding: 0;
}

.navbar-links a {
    position: relative;
    color: var(--nav-muted);
    text-decoration: none;
    font-family: var(--font-family-base, "Poppins", sans-serif);
    font-size: 0.98rem;
    font-weight: 500;
    letter-spacing: 0.01em;
    white-space: nowrap;
    transition: color 0.2s ease, opacity 0.2s ease;
}

.navbar-links a::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -0.35rem;
    height: 2px;
    border-radius: 999px;
    background: linear-gradient(90deg, #ffa163, #02413f);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.25s ease;
}

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

.navbar-links a:hover::after,
.navbar-links a:focus-visible::after,
.navbar-links a.active::after {
    transform: scaleX(1);
}

.navbar-cta {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0.65rem 1.15rem;
    border-radius: var(--nav-radius);
    background: var(--color-primary, #02413f);
    color: #ffffff;
    text-decoration: none;
    font-family: var(--font-family-base, "Poppins", sans-serif);
    font-size: 0.92rem;
    font-weight: 600;
    white-space: nowrap;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.navbar-cta:hover,
.navbar-cta:focus-visible {
    transform: translateY(-1px);
    box-shadow: 0 10px 24px rgba(2, 65, 63, 0.22);
    background: var(--color-primary-dark, #012e2c);
}

.navbar-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border: 0;
    border-radius: 50%;
    background: rgba(2, 65, 63, 0.08);
    color: var(--nav-text);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    transition: background 0.2s ease;
}

.navbar-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    border-radius: 999px;
    background: currentColor;
    transition: transform 0.25s ease, opacity 0.25s ease;
}

.navbar-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.navbar-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.navbar-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.navbar-backdrop {
    position: fixed;
    inset: 0;
    z-index: 900;
    background: rgba(2, 65, 63, 0.25);
    backdrop-filter: blur(3px);
}

@media (max-width: 960px) {
    .navbar {
        min-height: 68px;
        padding-inline: 0.85rem;
    }

    .navbar-toggle {
        display: inline-flex;
    }

    .navbar-menu {
        position: absolute;
        top: calc(100% + 0.75rem);
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
        padding: 1rem;
        background: var(--nav-bg-overlay), var(--nav-bg);
        border-radius: 1.5rem;
        box-shadow: var(--nav-shadow);
        border: 1px solid rgba(2, 65, 63, 0.08);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-12px) scale(0.98);
        transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
    }

    .site-header {
        position: fixed;
    }

    .navbar {
        position: relative;
    }

    .navbar-menu.is-open {
        opacity: 1;
        visibility: visible;
        transform: translateY(0) scale(1);
    }

    .navbar-links {
        flex-direction: column;
        align-items: stretch;
        gap: 0.25rem;
    }

    .navbar-links li {
        width: 100%;
    }

    .navbar-links a {
        display: block;
        padding: 0.85rem 0.75rem;
        border-radius: 0.85rem;
        text-align: center;
    }

    .navbar-links a::after {
        display: none;
    }

    .navbar-links a:hover,
    .navbar-links a:focus-visible,
    .navbar-links a.active {
        background: rgba(2, 65, 63, 0.06);
        color: var(--nav-text);
    }

    .navbar-cta {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .site-header {
        padding-inline: var(--layout-gutter);
    }

    .navbar {
        min-height: 64px;
    }

    .logo-circle {
        width: 48px;
        height: 48px;
    }

    .navbar-cta {
        font-size: 0.86rem;
        padding-inline: 1rem;
    }
}