/* 💙 HeartTime - Material Design 3 FAB Component */

/* ===== FAB Container ===== */
.fab-container {
    position: fixed;
    bottom: calc(var(--m3-nav-bar-height) + var(--m3-space-4));
    right: var(--m3-space-4);
    z-index: 1000;
}

/* ===== Main FAB Button ===== */
.fab {
    width: var(--m3-fab-size);
    height: var(--m3-fab-size);
    border-radius: var(--m3-shape-corner-large);
    background-color: var(--m3-primary);
    color: var(--m3-on-primary);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--m3-elevation-level3);
    transition: all var(--m3-motion-duration-medium2) var(--m3-motion-easing-standard);
    pointer-events: auto;
    position: relative;
    overflow: hidden;
}

.fab:hover {
    box-shadow: var(--m3-elevation-level4);
    transform: scale(1.05);
}

.fab:active {
    box-shadow: var(--m3-elevation-level2);
    transform: scale(0.95);
}

/* FAB Icon */
.fab-icon {
    font-size: 24px;
    transition: transform var(--m3-motion-duration-medium2) var(--m3-motion-easing-standard);
}

.fab.expanded .fab-icon {
    transform: rotate(45deg);
}

/* ===== FAB Menu ===== */
.fab-menu {
    position: absolute;
    bottom: calc(var(--m3-fab-size) + var(--m3-space-2));
    right: 0;
    display: flex;
    flex-direction: column;
    gap: var(--m3-space-2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: opacity var(--m3-motion-duration-medium3) var(--m3-motion-easing-emphasized),
                visibility var(--m3-motion-duration-medium3) var(--m3-motion-easing-emphasized),
                transform var(--m3-motion-duration-medium3) var(--m3-motion-easing-emphasized);
    pointer-events: auto;
    z-index: 1001;
}

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

/* ===== FAB Menu Options ===== */
.fab-option {
    display: flex;
    align-items: center;
    gap: var(--m3-space-3);
    background-color: var(--m3-surface);
    color: var(--m3-on-surface);
    padding: var(--m3-space-3) var(--m3-space-4);
    border-radius: var(--m3-shape-corner-medium);
    box-shadow: var(--m3-elevation-level2);
    cursor: pointer;
    transition: all var(--m3-motion-duration-short4) var(--m3-motion-easing-standard);
    white-space: nowrap;
    min-height: 48px;
    position: relative;
    overflow: hidden;
    pointer-events: auto;
    z-index: 1002;
}

.fab-option:hover {
    box-shadow: var(--m3-elevation-level3);
    background-color: var(--m3-surface-variant);
}

.fab-option:active {
    box-shadow: var(--m3-elevation-level1);
    transform: scale(0.98);
}

/* FAB Option Icon */
.fab-option i {
    font-size: 20px;
    width: 24px;
    text-align: center;
    color: var(--m3-primary);
}

/* FAB Option Text */
.fab-option span {
    font-size: var(--m3-label-large-font);
    font-weight: var(--m3-label-large-weight);
    line-height: var(--m3-label-large-line-height);
    letter-spacing: var(--m3-label-large-tracking);
}

/* ===== FAB Backdrop ===== */
.fab-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.3);
    opacity: 0;
    visibility: hidden;
    transition: all var(--m3-motion-duration-medium2) var(--m3-motion-easing-standard);
    z-index: 998;
    pointer-events: none;
}

.fab-backdrop.visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

/* ===== Ripple Effect ===== */
.fab::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width var(--m3-motion-duration-short4) var(--m3-motion-easing-standard),
                height var(--m3-motion-duration-short4) var(--m3-motion-easing-standard);
}

.fab:active::before {
    width: 100%;
    height: 100%;
}

.fab-option::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background-color: rgba(14, 165, 233, 0.1);
    transform: translate(-50%, -50%);
    transition: width var(--m3-motion-duration-short4) var(--m3-motion-easing-standard),
                height var(--m3-motion-duration-short4) var(--m3-motion-easing-standard);
}

.fab-option:active::before {
    width: 100%;
    height: 100%;
}

/* ===== Animation Delays for Staggered Effect ===== */
.fab-menu.expanded .fab-option:nth-child(1) {
    transition-delay: 0ms;
}

.fab-menu.expanded .fab-option:nth-child(2) {
    transition-delay: 50ms;
}

.fab-menu.expanded .fab-option:nth-child(3) {
    transition-delay: 100ms;
}

.fab-menu.expanded .fab-option:nth-child(4) {
    transition-delay: 150ms;
}

.fab-menu.expanded .fab-option:nth-child(5) {
    transition-delay: 200ms;
}

/* ===== Ensure expanded menu options are fully interactive ===== */
.fab-menu.expanded .fab-option {
    pointer-events: auto !important;
    z-index: 1003;
}

/* ===== Responsive Adjustments ===== */
@media (max-width: 480px) {
    .fab-container {
        bottom: calc(var(--m3-nav-bar-height) + var(--m3-space-3));
        right: var(--m3-space-3);
    }
    
    .fab-option {
        padding: var(--m3-space-2) var(--m3-space-3);
        gap: var(--m3-space-2);
    }
    
    .fab-option span {
        font-size: var(--m3-label-medium-font);
    }
}

/* ===== Accessibility ===== */
.fab:focus-visible {
    outline: 2px solid var(--m3-primary);
    outline-offset: 2px;
}

.fab-option:focus-visible {
    outline: 2px solid var(--m3-primary);
    outline-offset: 2px;
}

/* ===== Hide FAB on pages that don't support content creation ===== */
.no-fab .fab-container {
    display: none;
}

/* ===== Safe area adjustments for notched devices ===== */
@supports (padding: max(0px)) {
    .fab-container {
        bottom: calc(var(--m3-nav-bar-height) + var(--m3-space-4) + env(safe-area-inset-bottom, 0px));
        right: calc(var(--m3-space-4) + env(safe-area-inset-right, 0px));
    }
}