/* ============================================================
   SmileCare — Mobile Navigation (Hamburger Menu)
   Shows a hamburger button below 900px that toggles a
   slide-down menu panel with all nav links + CTAs.
   ============================================================ */

/* ---- Hamburger toggle button (hidden on desktop) ---- */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    margin-left: auto;
    z-index: 1001;
    -webkit-tap-highlight-color: transparent;
}

.nav-toggle-box {
    width: 26px;
    height: 18px;
    position: relative;
}

.nav-toggle-box span {
    display: block;
    position: absolute;
    height: 2.5px;
    width: 100%;
    background: var(--slate-800, #1e293b);
    border-radius: 3px;
    transition: all 0.3s ease;
    transform-origin: center;
}

.nav-toggle-box span:nth-child(1) { top: 0; }
.nav-toggle-box span:nth-child(2) { top: 50%; transform: translateY(-50%); }
.nav-toggle-box span:nth-child(3) { bottom: 0; }

/* Animate to X when menu is open */
.nav.menu-open .nav-toggle-box span:nth-child(1) {
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
}
.nav.menu-open .nav-toggle-box span:nth-child(2) {
    opacity: 0;
    transform: translateY(-50%) scaleX(0);
}
.nav.menu-open .nav-toggle-box span:nth-child(3) {
    bottom: 50%;
    transform: translateY(50%) rotate(-45deg);
}

/* ---- Mobile menu panel (hidden on desktop) ---- */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    max-width: 340px;
    height: 100vh;
    height: 100dvh;
    background: #fff;
    z-index: 1000;
    padding: 80px 28px 40px;
    box-shadow: -4px 0 24px rgba(15, 23, 42, 0.12);
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform 0.32s cubic-bezier(0.4, 0, 0.2, 1);
    flex-direction: column;
}

.mobile-menu.open {
    transform: translateX(0);
}

.mobile-menu a {
    display: block;
    padding: 16px 0;
    font-size: 17px;
    font-weight: 600;
    color: var(--slate-700, #334155);
    border-bottom: 1px solid var(--slate-100, #f1f5f9);
    transition: color 0.2s;
    -webkit-tap-highlight-color: transparent;
}

.mobile-menu a:active,
.mobile-menu a:hover {
    color: var(--teal-600, #0d9488);
}

.mobile-menu .mm-ctas {
    margin-top: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.mobile-menu .mm-ctas .btn {
    width: 100%;
    text-align: center;
    justify-content: center;
    box-sizing: border-box;
}

/* ---- Overlay backdrop ---- */
.mobile-menu-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.45);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.32s ease;
}

.mobile-menu-overlay.open {
    display: block;
    opacity: 1;
}

/* ---- Body lock when menu open ---- */
body.mobile-nav-open {
    overflow: hidden;
}

/* ---- Show hamburger + enable mobile menu below 900px ---- */
@media (max-width: 900px) {
    /* Show hamburger button */
    .nav-toggle {
        display: block;
    }

    /* Hide desktop CTA buttons — they live in the mobile menu now */
    .nav-cta {
        display: none;
    }

    /* Enable the slide-in panel (off-screen until .open) */
    .mobile-menu {
        display: flex;
        transform: translateX(100%);
    }

    .mobile-menu.open {
        transform: translateX(0);
    }
}

/* ---- Small phone tweaks ---- */
@media (max-width: 480px) {
    .mobile-menu {
        padding: 72px 22px 32px;
    }
    .mobile-menu a {
        font-size: 16px;
        padding: 14px 0;
    }
}

/* ---- Reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
    .nav-toggle-box span,
    .mobile-menu,
    .mobile-menu-overlay {
        transition: none !important;
    }
}