/* ============================================================
   MOBILE NAVIGATION — Hamburger Menu
   2026 AI-Forward Design System
   Breakpoint: 768px
   Include AFTER design-system.css & page-specific styles.
   ============================================================ */

/* Hamburger button — hidden on desktop */
.hamburger-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 10001;
    position: relative;
    -webkit-tap-highlight-color: transparent;
}
.hamburger-btn span {
    display: block;
    width: 22px;
    height: 2px;
    background: #111827;
    border-radius: 2px;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    margin: 5px 0;
}
/* Animate to X when open */
.hamburger-btn.is-open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.hamburger-btn.is-open span:nth-child(2) {
    opacity: 0;
}
.hamburger-btn.is-open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Backdrop overlay */
.mobile-nav-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: 9998;
    opacity: 0;
    transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.mobile-nav-backdrop.is-visible {
    display: block;
    opacity: 1;
}

/* ============================================================
   MOBILE BREAKPOINT
   ============================================================ */
@media (max-width: 768px) {
    /* Show hamburger */
    .hamburger-btn {
        display: block;
    }

    .nav-links {
        position: fixed !important;
        top: 0 !important;
        right: -100% !important;
        width: 80% !important;
        max-width: 320px !important;
        height: 100dvh !important;
        background: #FFFFFF !important;
        display: flex !important;
        flex-direction: column !important;
        align-items: flex-start !important;
        padding: 88px 32px 40px !important;
        gap: 0 !important;
        z-index: 9999 !important;
        transition: right 0.35s cubic-bezier(0.16, 1, 0.3, 1) !important;
        overflow-y: auto !important;
        border-left: 1px solid #E5E7EB !important;
        box-shadow: -8px 0 32px rgba(0,0,0,0.1) !important;
    }
    .nav-links.is-open {
        right: 0 !important;
    }

    /* Handle <ul> nav-links variant (reset list styles) */
    ul.nav-links {
        list-style: none !important;
        margin: 0 !important;
    }
    .nav-links li {
        width: 100% !important;
    }

    /* Show ALL nav links inside mobile menu */
    .nav-links .nav-link,
    .nav-links .nav-cta,
    .nav-links .nav-cta-btn,
    .nav-links a,
    .nav-links li a {
        display: flex !important;
        width: 100% !important;
        padding: 14px 0 !important;
        font-size: 1.05rem !important;
        color: #111827 !important;
        text-decoration: none !important;
        border-bottom: 1px solid #F3F4F6 !important;
        transition: color 0.2s !important;
        background: transparent !important;
        border-radius: 0 !important;
    }
    .nav-links .nav-link:last-child,
    .nav-links a:last-child,
    .nav-links li:last-child a {
        border-bottom: none !important;
    }
    .nav-links .nav-link:hover,
    .nav-links a:hover,
    .nav-links li a:hover {
        color: #10B981 !important;
    }

    /* Sign In button — keep styled but full-width */
    .nav-links #nav-signin {
        margin-top: 16px !important;
        color: #FFFFFF !important;
        background: #111827 !important;
        border: none !important;
        padding: 12px 20px !important;
        border-radius: 8px !important;
        font-weight: 600 !important;
        text-align: center !important;
        justify-content: center !important;
        font-size: 0.92rem !important;
        letter-spacing: 0 !important;
    }

    /* Nav tag / user chip */
    .nav-links .nav-tag {
        display: inline-flex !important;
        margin-top: 16px !important;
        font-size: 0.82rem !important;
        color: var(--text-muted, #64748B) !important;
        border: 1px solid rgba(0, 0, 0, 0.06) !important;
        padding: 4px 12px !important;
        border-radius: 100px !important;
    }

    /* Prevent body scroll when menu open */
    body.mobile-nav-open {
        overflow: hidden !important;
    }
}