/**
 * Hamburger Menu Button Styles
 * Mobile-First UI Redesign - Phase 2
 */

/* ========== Hamburger Button ========== */
.hamburger-btn {
    position: fixed;
    top: 16px;
    left: 16px;
    width: var(--touch-target-min);
    height: var(--touch-target-min);
    background: white;
    border: 1px solid var(--menu-border);
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    z-index: var(--z-index-hamburger);
    display: none; /* Hidden by default, shown via JS on mobile */
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast) var(--transition-easing);
}

.hamburger-btn:hover {
    background: var(--menu-item-bg-hover);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
    transform: scale(1.05);
}

.hamburger-btn:active {
    transform: scale(0.95);
}

/* ========== Hamburger Icon ========== */
.hamburger-icon {
    font-size: 24px;
    color: var(--color-dark-gray);
    transition: transform var(--transition-fast) var(--transition-easing);
}

/* Menu open state - transform to X */
.hamburger-btn.menu-open .hamburger-icon {
    transform: rotate(90deg);
}

/* Alternative: Show X icon when menu is open */
.hamburger-btn.menu-open .hamburger-icon::before {
    content: '✕';
}

/* ========== Mobile Adjustments ========== */
@media screen and (max-width: 767px) {
    /* Hamburger should be visible on mobile */
    .hamburger-btn {
        /* Will be set to display: flex via JavaScript */
    }
    
    /* Adjust positioning if needed */
    body.menu-visible .hamburger-btn {
        left: calc(var(--menu-width-mobile) + 16px);
    }
}

/* ========== Tablet (768px - 1024px) ========== */
@media screen and (min-width: 768px) and (max-width: 1024px) {
    /* Hide hamburger on tablet (menu always visible) */
    .hamburger-btn {
        display: none !important;
    }
}

/* ========== Desktop (>1024px) ========== */
@media screen and (min-width: 1025px) {
    /* Hide hamburger on desktop (menu always visible) */
    .hamburger-btn {
        display: none !important;
    }
}