:root {
    --platform-nav-bg: rgba(255, 255, 255, 0.82);
    --platform-nav-border: rgba(96, 165, 250, 0.18);
    --platform-nav-shadow: 0 16px 34px rgba(37, 99, 235, 0.09);
    --platform-nav-brand: #163b8c;
    --platform-nav-text: #355ca8;
    --platform-nav-active: #2563eb;
    --platform-nav-active-bg: linear-gradient(135deg, #2563eb 0%, #38bdf8 100%);
}

.platform-topbar {
    position: sticky;
    top: 0;
    z-index: 60;
    background: var(--platform-nav-bg, rgba(255, 255, 255, 0.82)) !important;
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--platform-nav-border, rgba(96, 165, 250, 0.18)) !important;
    box-shadow: var(--platform-nav-shadow, 0 16px 34px rgba(37, 99, 235, 0.09));
}

.platform-topbar-shell {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
}

.platform-topbar-row {
    min-height: 74px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    flex-wrap: nowrap;
}

.platform-brand-wrap {
    display: flex;
    align-items: center;
    gap: 14px;
    flex: 1 1 auto;
    min-width: 0;
    flex-wrap: nowrap;
}

.platform-brand {
    margin: 0;
    color: var(--platform-nav-brand, #163b8c) !important;
    font-size: 20px !important;
    font-weight: 800 !important;
    letter-spacing: 0.01em;
    white-space: nowrap;
    flex: 0 0 auto;
}

.platform-nav-links {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1 1 auto;
    min-width: 0;
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: none;
}

.platform-nav-links::-webkit-scrollbar {
    display: none;
}

.platform-nav-link {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0 13px !important;
    border: 0 !important;
    border-radius: 999px;
    color: var(--platform-nav-text, #355ca8) !important;
    font-size: 13px !important;
    font-weight: 700 !important;
    text-decoration: none;
    transition: all 0.2s ease;
    white-space: nowrap;
    flex: 0 0 auto;
}

.platform-nav-link:hover {
    background: rgba(219, 234, 254, 0.78) !important;
    color: var(--platform-nav-active, #2563eb) !important;
}

.platform-nav-link.is-active {
    background: var(--platform-nav-active-bg, linear-gradient(135deg, #2563eb 0%, #38bdf8 100%)) !important;
    color: #ffffff !important;
    box-shadow: 0 12px 24px rgba(37, 99, 235, 0.2);
}

.platform-topbar-tools {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 0 0 auto;
    flex-wrap: nowrap;
    justify-content: flex-end;
}

.platform-topbar-btn {
    min-height: 42px;
    padding: 0 16px !important;
    border: 1px solid rgba(96, 165, 250, 0.2) !important;
    border-radius: 14px !important;
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 100%) !important;
    color: #ffffff !important;
    box-shadow: 0 12px 22px rgba(37, 99, 235, 0.16);
}

.platform-topbar-btn:hover {
    filter: brightness(1.02);
    transform: translateY(-1px);
}

.platform-topbar-search {
    display: flex;
    align-items: center;
    gap: 8px;
}

.platform-topbar-search input {
    min-height: 42px;
    min-width: 170px;
    padding: 0 14px !important;
    border-radius: 14px !important;
    border: 1px solid rgba(96, 165, 250, 0.22) !important;
    background: rgba(255, 255, 255, 0.92) !important;
    color: #163b8c !important;
    box-shadow: inset 0 1px 2px rgba(15, 23, 42, 0.03);
}

.platform-topbar-search input::placeholder {
    color: #7c93c9;
}

.platform-topbar-search input:focus {
    outline: none;
    border-color: rgba(37, 99, 235, 0.42) !important;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.platform-user-chip {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-height: 42px;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(219, 234, 254, 0.72);
    border: 1px solid rgba(96, 165, 250, 0.18);
    color: var(--platform-nav-brand, #163b8c);
    font-weight: 700;
}

.platform-user-chip img {
    width: 32px;
    height: 32px;
    border-radius: 999px;
}

@media (max-width: 1360px) {
    .platform-topbar-shell {
        padding: 0 16px;
    }

    .platform-brand {
        font-size: 18px !important;
    }

    .platform-nav-link {
        padding: 0 11px !important;
        font-size: 12px !important;
    }

    .platform-topbar-search input {
        min-width: 144px;
    }
}

@media (max-width: 1180px) {
    .platform-topbar-row {
        padding: 14px 0;
        align-items: flex-start;
        flex-direction: column;
    }

    .platform-brand-wrap,
    .platform-topbar-tools {
        width: 100%;
    }

    .platform-nav-links,
    .platform-topbar-tools {
        justify-content: flex-start;
    }
}

@media (max-width: 720px) {
    .platform-topbar-shell {
        padding: 0 14px;
    }

    .platform-brand {
        font-size: 20px !important;
    }

    .platform-topbar-search {
        width: 100%;
        flex-wrap: wrap;
    }

    .platform-topbar-search input,
    .platform-topbar-btn {
        width: 100%;
    }
}