/**
 * WP Floating Contact - Frontend Styles
 * 
 * @package WP_Floating_Contact
 * @since 1.0.0
 */

/* ============================================
   CSS Variables
   ============================================ */
:root {
    --wpfc-hotline-color: #e53935;
    --wpfc-zalo-color: #0068ff;
    --wpfc-facebook-color: #1877f2;
    --wpfc-messenger-color: #00b2ff;
    --wpfc-email-color: #ea4335;
    --wpfc-btn-size: 52px;
    --wpfc-btn-size-mobile: 56px;
    --wpfc-btn-gap: 12px;
    --wpfc-btn-gap-mobile: 14px;
    --wpfc-offset: 20px;
    --wpfc-offset-mobile: 16px;
    --wpfc-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    --wpfc-shadow-hover: 0 6px 20px rgba(0, 0, 0, 0.25);
    --wpfc-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   Container
   ============================================ */
.wpfc-floating-contact {
    position: fixed;
    bottom: var(--wpfc-offset);
    z-index: 99999;
    display: flex;
    flex-direction: column;
    pointer-events: none;
}

.wpfc-floating-contact.wpfc-position-right {
    right: var(--wpfc-offset);
}

.wpfc-floating-contact.wpfc-position-left {
    left: var(--wpfc-offset);
}

/* ============================================
   Contact List
   ============================================ */
.wpfc-contact-list {
    display: flex;
    flex-direction: column;
    gap: var(--wpfc-btn-gap);
    align-items: center;
}

.wpfc-position-right .wpfc-contact-list {
    align-items: flex-end;
}

.wpfc-position-left .wpfc-contact-list {
    align-items: flex-start;
}

/* ============================================
   Contact Button
   ============================================ */
.wpfc-contact-btn {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: var(--wpfc-btn-size);
    height: var(--wpfc-btn-size);
    border-radius: 50%;
    background-color: #fff;
    box-shadow: var(--wpfc-shadow);
    text-decoration: none !important;
    pointer-events: auto;
    transition: var(--wpfc-transition);
    overflow: visible;
}

.wpfc-contact-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--wpfc-shadow-hover);
}

.wpfc-contact-btn:active {
    transform: scale(1.05);
}

.wpfc-contact-btn:focus {
    outline: 2px solid #fff;
    outline-offset: 2px;
}

/* ============================================
   Icon Styles
   ============================================ */
.wpfc-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    transition: var(--wpfc-transition);
}

.wpfc-icon svg {
    width: 100%;
    height: 100%;
    transition: var(--wpfc-transition);
}

/* ============================================
   Button Colors
   ============================================ */
.wpfc-btn-hotline {
    background: linear-gradient(135deg, #ff5252 0%, #e53935 100%);
    color: #fff;
}

.wpfc-btn-hotline .wpfc-icon svg {
    fill: #fff;
    color: #fff;
}

.wpfc-btn-hotline:hover {
    background: linear-gradient(135deg, #ff6b6b 0%, #f44336 100%);
}

/* Pulse animation for hotline */
.wpfc-btn-hotline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 50%;
    background: inherit;
    animation: wpfc-pulse 2s infinite;
    z-index: -1;
}

@keyframes wpfc-pulse {
    0% {
        transform: scale(1);
        opacity: 0.5;
    }
    50% {
        transform: scale(1.3);
        opacity: 0;
    }
    100% {
        transform: scale(1);
        opacity: 0;
    }
}

.wpfc-btn-zalo {
    background: linear-gradient(135deg, #0091ff 0%, #0068ff 100%);
    color: #fff;
}

.wpfc-btn-zalo .wpfc-icon svg {
    fill: #fff;
    color: #fff;
}

.wpfc-btn-zalo:hover {
    background: linear-gradient(135deg, #33a3ff 0%, #0080ff 100%);
}

.wpfc-btn-facebook {
    background: linear-gradient(135deg, #4293ff 0%, #1877f2 100%);
    color: #fff;
}

.wpfc-btn-facebook .wpfc-icon svg {
    fill: #fff;
    color: #fff;
}

.wpfc-btn-facebook:hover {
    background: linear-gradient(135deg, #5aa3ff 0%, #2196f3 100%);
}

.wpfc-btn-messenger {
    background: linear-gradient(135deg, #00d4ff 0%, #00b2ff 100%);
    color: #fff;
}

.wpfc-btn-messenger .wpfc-icon svg {
    fill: #fff;
    color: #fff;
}

.wpfc-btn-messenger:hover {
    background: linear-gradient(135deg, #33e0ff 0%, #33c4ff 100%);
}

.wpfc-btn-email {
    background: linear-gradient(135deg, #ff6b6b 0%, #ea4335 100%);
    color: #fff;
}

.wpfc-btn-email .wpfc-icon svg {
    fill: #fff;
    color: #fff;
}

.wpfc-btn-email:hover {
    background: linear-gradient(135deg, #ff8585 0%, #f44336 100%);
}

/* ============================================
   Tooltip
   ============================================ */
.wpfc-tooltip {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    padding: 8px 14px;
    background: #333;
    color: #fff;
    font-size: 13px;
    font-weight: 500;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    line-height: 1.4;
    white-space: nowrap;
    border-radius: 6px;
    opacity: 0;
    visibility: hidden;
    transition: var(--wpfc-transition);
    pointer-events: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.wpfc-tooltip::after {
    content: '';
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    border: 6px solid transparent;
}

/* Tooltip position for right-aligned widget */
.wpfc-position-right .wpfc-tooltip {
    right: calc(100% + 12px);
}

.wpfc-position-right .wpfc-tooltip::after {
    left: 100%;
    border-left-color: #333;
}

/* Tooltip position for left-aligned widget */
.wpfc-position-left .wpfc-tooltip {
    left: calc(100% + 12px);
}

.wpfc-position-left .wpfc-tooltip::after {
    right: 100%;
    border-right-color: #333;
}

/* Show tooltip on hover */
.wpfc-contact-btn:hover .wpfc-tooltip {
    opacity: 1;
    visibility: visible;
}

/* ============================================
   Mobile Responsive (max-width: 768px)
   ============================================ */
@media screen and (max-width: 768px) {
    .wpfc-floating-contact {
        bottom: var(--wpfc-offset-mobile);
    }

    .wpfc-floating-contact.wpfc-position-right {
        right: var(--wpfc-offset-mobile);
    }

    .wpfc-floating-contact.wpfc-position-left {
        left: var(--wpfc-offset-mobile);
    }

    .wpfc-contact-list {
        gap: var(--wpfc-btn-gap-mobile);
    }

    .wpfc-contact-btn {
        width: var(--wpfc-btn-size-mobile);
        height: var(--wpfc-btn-size-mobile);
    }

    .wpfc-icon {
        width: 28px;
        height: 28px;
    }

    /* Hide tooltip on mobile - use touch */
    .wpfc-tooltip {
        display: none !important;
    }
}

/* ============================================
   Small Mobile (max-width: 480px)
   ============================================ */
@media screen and (max-width: 480px) {
    :root {
        --wpfc-btn-size-mobile: 52px;
        --wpfc-btn-gap-mobile: 12px;
        --wpfc-offset-mobile: 12px;
    }
}

/* ============================================
   Accessibility - Reduced Motion
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    .wpfc-contact-btn,
    .wpfc-icon,
    .wpfc-icon svg,
    .wpfc-tooltip {
        transition: none;
    }

    .wpfc-btn-hotline::before {
        animation: none;
    }
}

/* ============================================
   High Contrast Mode
   ============================================ */
@media (prefers-contrast: high) {
    .wpfc-contact-btn {
        border: 2px solid #000;
    }

    .wpfc-tooltip {
        background: #000;
        border: 1px solid #fff;
    }
}

/* ============================================
   Print Styles - Hide widget when printing
   ============================================ */
@media print {
    .wpfc-floating-contact {
        display: none !important;
    }
}