/* Shared Brien Apps top navigation — dark (hub) | light (product / tools) */

:root {
    --brien-nav-height: 56px;
    --brien-primary: #6366f1;
    --brien-primary-dark: #4f46e5;
    --brien-gray-200: #e5e7eb;
    --brien-gray-700: #374151;
}

.brien-top-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 2000;
    padding: 12px 24px;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.brien-top-nav--light {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--brien-gray-200);
}

.brien-top-nav--dark {
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.brien-nav-container {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.brien-nav-logo {
    font-size: 1.2rem;
    font-weight: 700;
    text-decoration: none;
    white-space: nowrap;
}

.brien-top-nav--light .brien-nav-logo {
    color: var(--brien-primary);
}

.brien-top-nav--dark .brien-nav-logo {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.brien-nav-links {
    display: flex;
    gap: 8px 18px;
    align-items: center;
    flex-wrap: wrap;
}

.brien-nav-links a {
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 4px 2px;
}

.brien-top-nav--light .brien-nav-links a {
    color: var(--brien-gray-700);
}

.brien-top-nav--light .brien-nav-links a:hover,
.brien-top-nav--light .brien-nav-links a.brien-nav-active {
    color: var(--brien-primary-dark);
}

.brien-top-nav--dark .brien-nav-links a {
    color: rgba(255, 255, 255, 0.7);
}

.brien-top-nav--dark .brien-nav-links a:hover,
.brien-top-nav--dark .brien-nav-links a.brien-nav-active {
    color: #fff;
}

.brien-nav-apps {
    position: relative;
}

.brien-nav-apps-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    border: none;
    background: transparent;
    cursor: pointer;
    font: inherit;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 4px 2px;
}

.brien-top-nav--light .brien-nav-apps-toggle {
    color: var(--brien-gray-700);
}

.brien-top-nav--dark .brien-nav-apps-toggle {
    color: rgba(255, 255, 255, 0.7);
}

.brien-top-nav--light .brien-nav-apps-toggle:hover,
.brien-top-nav--light .brien-nav-apps-toggle.brien-nav-active {
    color: var(--brien-primary-dark);
}

.brien-top-nav--dark .brien-nav-apps-toggle:hover,
.brien-top-nav--dark .brien-nav-apps-toggle.brien-nav-active {
    color: #fff;
}

.brien-nav-apps-caret {
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 5px solid currentColor;
    opacity: 0.7;
}

.brien-nav-apps-menu {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    min-width: 200px;
    padding: 0.45rem;
    border-radius: 12px;
    z-index: 10;
    flex-direction: column;
    gap: 2px;
}

.brien-top-nav--light .brien-nav-apps-menu {
    background: #fff;
    border: 1px solid var(--brien-gray-200);
    box-shadow: 0 12px 28px rgba(15, 23, 42, 0.12);
}

.brien-top-nav--dark .brien-nav-apps-menu {
    background: #111;
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.45);
}

.brien-nav-apps:hover .brien-nav-apps-menu,
.brien-nav-apps:focus-within .brien-nav-apps-menu,
.brien-nav-apps.brien-nav-apps-open .brien-nav-apps-menu {
    display: flex;
}

.brien-nav-apps-menu a {
    display: block;
    padding: 0.65rem 0.75rem !important;
    border-radius: 8px;
    white-space: nowrap;
}

.brien-top-nav--light .brien-nav-apps-menu a:hover,
.brien-top-nav--light .brien-nav-apps-menu a.brien-nav-active {
    background: #f3f4f6;
    color: var(--brien-primary-dark);
}

.brien-top-nav--dark .brien-nav-apps-menu a:hover,
.brien-top-nav--dark .brien-nav-apps-menu a.brien-nav-active {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
}

.brien-nav-cta {
    background: var(--brien-primary);
    color: #fff !important;
    border-radius: 8px;
    padding: 6px 12px !important;
}

.brien-nav-cta:hover {
    background: var(--brien-primary-dark);
    color: #fff !important;
}

.brien-nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 8px;
    border: none;
    background: transparent;
    cursor: pointer;
    border-radius: 8px;
}

.brien-nav-toggle span {
    display: block;
    height: 2px;
    width: 100%;
    border-radius: 1px;
    transition: transform 0.25s ease, opacity 0.25s ease;
}

.brien-top-nav--light .brien-nav-toggle span {
    background: var(--brien-gray-700);
}

.brien-top-nav--dark .brien-nav-toggle span {
    background: #fff;
}

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

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

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

body.has-brien-site-nav {
    padding-top: var(--brien-nav-height);
}

/* Cumulus MX weather: sit fixed header below site nav */
body.has-brien-site-nav #Header.w3-top {
    top: var(--brien-nav-height);
    z-index: 1000;
}

body.has-brien-site-nav.brien-stormvue-page {
    padding-top: var(--brien-nav-height);
}

body.weather-embed #Header.w3-top {
    top: 0;
}

@media (max-width: 800px) {
    .brien-nav-toggle {
        display: flex;
    }

    .brien-nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 12px 24px 20px;
        border-bottom: 1px solid transparent;
    }

    .brien-top-nav--light .brien-nav-links {
        background: rgba(255, 255, 255, 0.98);
        border-bottom-color: var(--brien-gray-200);
    }

    .brien-top-nav--dark .brien-nav-links {
        background: rgba(0, 0, 0, 0.98);
        border-bottom-color: rgba(255, 255, 255, 0.1);
    }

    .brien-nav-links.brien-nav-open {
        display: flex;
    }

    .brien-nav-links a {
        padding: 12px 4px;
        border-bottom: 1px solid rgba(128, 128, 128, 0.15);
    }

    .brien-nav-apps {
        border-bottom: 1px solid rgba(128, 128, 128, 0.15);
    }

    .brien-nav-apps-toggle {
        width: 100%;
        justify-content: space-between;
        padding: 12px 4px;
    }

    .brien-nav-apps-menu {
        position: static;
        display: none;
        min-width: 0;
        margin: 0 0 8px;
        padding: 0 0 0 12px;
        border: none;
        box-shadow: none;
        background: transparent !important;
    }

    .brien-nav-apps.brien-nav-apps-open .brien-nav-apps-menu {
        display: flex;
    }

    .brien-nav-apps:hover .brien-nav-apps-menu {
        display: none;
    }

    .brien-nav-apps.brien-nav-apps-open:hover .brien-nav-apps-menu,
    .brien-nav-apps.brien-nav-apps-open:focus-within .brien-nav-apps-menu {
        display: flex;
    }

    .brien-nav-apps-menu a {
        border-bottom: none !important;
        padding: 10px 4px !important;
    }

    .brien-nav-cta {
        margin-top: 8px;
        text-align: center;
    }
}