/**
 * GiftCodeNgon - Floating Action Button (FAB) Styles
 * 
 * Mobile navigation component
 * @version 1.2.0 - Added text label
 */

/* ========================================
   FAB CONTAINER
   ======================================== */

.fab-container {
    position: fixed;
    bottom: var(--space-6);
    right: var(--space-4);
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transform: scale(0.8) translateY(20px);
    transition: all var(--transition-base);
}

.fab-container.fab-visible {
    opacity: 1;
    visibility: visible;
    transform: scale(1) translateY(0);
}

/* ========================================
   MAIN FAB BUTTON
   ======================================== */

.fab-main {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    border: none;
    color: white;
    font-size: var(--text-sm);
    font-weight: var(--font-bold);
    cursor: pointer;
    box-shadow:
        0 4px 12px rgba(99, 102, 241, 0.4),
        0 0 0 0 rgba(99, 102, 241, 0.4);
    transition: all var(--transition-fast);
    animation: fabPulse 2s ease-in-out infinite;
}

.fab-main i {
    font-size: var(--text-lg);
}

.fab-label {
    font-size: var(--text-sm);
    letter-spacing: 0.02em;
}

.fab-main:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}

.fab-main:active {
    transform: scale(0.95);
}

.fab-container.fab-open .fab-main {
    animation: none;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
}

.fab-container.fab-open .fab-main i {
    transform: rotate(180deg);
}

@keyframes fabPulse {

    0%,
    100% {
        box-shadow:
            0 4px 12px rgba(99, 102, 241, 0.4),
            0 0 0 0 rgba(99, 102, 241, 0.4);
    }

    50% {
        box-shadow:
            0 4px 12px rgba(99, 102, 241, 0.4),
            0 0 0 8px rgba(99, 102, 241, 0);
    }
}

/* ========================================
   FAB MENU
   ======================================== */

.fab-menu {
    position: absolute;
    bottom: calc(100% + var(--space-3));
    right: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-fast);
    max-width: calc(100vw - 32px);
}

.fab-container.fab-open .fab-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* ========================================
   FAB MENU ITEMS
   ======================================== */

.fab-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    color: white;
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    cursor: pointer;
    white-space: nowrap;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-fast);
    transform: translateX(20px);
    opacity: 0;
}

.fab-container.fab-open .fab-item {
    transform: translateX(0);
    opacity: 1;
}

.fab-container.fab-open .fab-item:nth-child(1) {
    transition-delay: 0ms;
}

.fab-container.fab-open .fab-item:nth-child(2) {
    transition-delay: 50ms;
}

.fab-container.fab-open .fab-item:nth-child(3) {
    transition-delay: 100ms;
}

.fab-item:active {
    transform: scale(0.95);
}

/* ========================================
   FAB ITEM ICONS - Different Colors & Backgrounds
   ======================================== */

.fab-item .fa-book {
    color: #60a5fa;
    background: rgba(96, 165, 250, 0.2);
    padding: 8px;
    border-radius: var(--radius-md);
    font-size: 14px;
}

.fab-item .fa-comments {
    color: #34d399;
    background: rgba(52, 211, 153, 0.2);
    padding: 8px;
    border-radius: var(--radius-md);
    font-size: 14px;
}

.fab-item .fa-arrow-up {
    color: #f472b6;
    background: rgba(244, 114, 182, 0.2);
    padding: 8px;
    border-radius: var(--radius-md);
    font-size: 14px;
}

.fab-item span {
    flex: 1;
}

/* ========================================
   DESKTOP HIDE
   ======================================== */

@media (min-width: 769px) {
    .fab-container {
        display: none !important;
    }
}

/* ========================================
   MOBILE ADJUSTMENTS
   ======================================== */

@media (max-width: 400px) {
    .fab-main {
        padding: var(--space-2) var(--space-3);
    }

    .fab-item {
        padding: var(--space-2) var(--space-3);
        font-size: var(--text-xs);
    }

    .fab-item .fa-book,
    .fab-item .fa-comments,
    .fab-item .fa-arrow-up {
        padding: 6px;
        font-size: 12px;
    }
}

/* ========================================
   SAFE AREA (iOS)
   ======================================== */

@supports (padding-bottom: env(safe-area-inset-bottom)) {
    .fab-container {
        bottom: calc(var(--space-6) + env(safe-area-inset-bottom));
    }
}