/* ========================================
   Header - Clean, minimal nav
   ======================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1100;
    padding: 16px 0;
    backdrop-filter: blur(12px);
    background: rgba(255, 255, 255, 0.85);
    transition: all var(--transition-base);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 1px 0 var(--color-gray-200);
    padding: 12px 0;
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* ========================================
   Logo
   ======================================== */

.logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.logo img {
    height: 36px;
    width: auto;
    transition: all var(--transition-base);
}

.header.scrolled .logo img {
    height: 32px;
}

/* ========================================
   Navigation - flat links + CTA
   ======================================== */

.nav {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link {
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-gray-600);
    border-radius: var(--radius-md);
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-gray-900);
}

/* Nav Dropdown */
.nav-dropdown {
    position: relative;
}

.nav-dropdown .nav-link {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-dropdown-arrow {
    transition: transform var(--transition-fast);
}

.nav-dropdown:hover .nav-dropdown-arrow {
    transform: rotate(180deg);
}

.nav-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    min-width: 320px;
    padding: 8px 0;
    padding-top: 16px;
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateX(-50%) translateY(4px);
    transition: all var(--transition-fast);
}

.nav-dropdown:hover .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.nav-dropdown-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin: 0 8px;
    transition: all var(--transition-fast);
}

.nav-dropdown-item:hover {
    background: var(--color-gray-50);
}

.nav-dropdown-icon {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    padding: 8px;
    background: var(--color-gray-100);
    border-radius: var(--radius-md);
    color: var(--color-primary);
    transition: all var(--transition-fast);
}

.nav-dropdown-item:hover .nav-dropdown-icon {
    background: var(--color-primary);
    color: var(--color-white);
}

.nav-dropdown-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.nav-dropdown-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-gray-900);
}

.nav-dropdown-desc {
    font-size: 12px;
    color: var(--color-gray-500);
}

/* CTA Button - pill with subtle border glow */
.nav-cta {
    margin-left: 12px;
    padding: 9px 22px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-white);
    background: var(--color-primary);
    border-radius: 100px;
    transition: all var(--transition-base);
}

.nav-cta:hover {
    background: var(--color-primary-dark);
}

/* ========================================
   Mobile Toggle
   ======================================== */

.mobile-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 10px;
    cursor: pointer;
    z-index: 1200;
}

.mobile-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-gray-700);
    border-radius: 2px;
    transition: all var(--transition-base);
    transform-origin: center;
}

.mobile-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.mobile-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ========================================
   Responsive - Header
   ======================================== */

@media (max-width: 768px) {
    .header {
        padding: 12px 0;
    }

    .logo img {
        height: 32px;
    }

    .mobile-toggle {
        display: flex;
    }

    .nav {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        height: 100vh;
        background: var(--color-white);
        z-index: 1100;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 8px;
        opacity: 0;
        visibility: hidden;
        transition: opacity var(--transition-base), visibility var(--transition-base);
    }

    .nav.active {
        opacity: 1;
        visibility: visible;
    }

    .nav-link {
        font-size: 18px;
        padding: 12px 20px;
        color: var(--color-gray-700);
        justify-content: center;
    }

    .nav-dropdown-menu {
        position: static;
        left: auto;
        top: auto;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        border-radius: 0;
        background: transparent;
        min-width: 0;
        padding: 0 0 0 20px;
        display: grid;
        grid-template-rows: 0fr;
        transition: grid-template-rows 0.3s ease;
    }

    .nav-dropdown-menu-inner {
        overflow: hidden;
    }

    .nav-dropdown.open .nav-dropdown-menu {
        grid-template-rows: 1fr;
    }

    .nav-dropdown:hover .nav-dropdown-menu {
        opacity: 1;
        visibility: visible;
        transform: none;
    }

    .nav-dropdown-arrow {
        transition: transform var(--transition-fast);
    }

    .nav-dropdown.open .nav-dropdown-arrow {
        transform: rotate(180deg);
    }

    .nav-dropdown-item {
        padding: 8px 12px;
        margin: 0;
    }

    .nav-dropdown-desc {
        display: none;
    }

    .nav-cta {
        margin-left: 0;
        margin-top: 12px;
        padding: 14px 32px;
        font-size: 16px;
    }
}

/* ========================================
   Print Styles
   ======================================== */

@media print {
    .header {
        display: none;
    }
}