/**
 * ESM PWA Styles v3.0
 * Complete styling for Progressive Web App elements
 */

/* ============================================ */
/* CSS VARIABLES                               */
/* ============================================ */
:root {
    --pwa-primary: #667eea;
    --pwa-primary-dark: #764ba2;
    --pwa-success: #28a745;
    --pwa-success-dark: #20c997;
    --pwa-danger: #dc3545;
    --pwa-danger-dark: #fd7e14;
    --pwa-warning: #ffc107;
    --pwa-info: #17a2b8;
    --pwa-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
    --pwa-shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.15);
    --pwa-radius: 16px;
    --pwa-radius-sm: 12px;
    --pwa-radius-pill: 50px;
    --pwa-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --pwa-font: 'Cairo', 'Segoe UI', Tahoma, sans-serif;
}

/* ============================================ */
/* PWA UPDATE BANNER                           */
/* ============================================ */
.pwa-update-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 999999;
    background: linear-gradient(135deg, var(--pwa-primary) 0%, var(--pwa-primary-dark) 100%);
    padding: 14px 20px;
    box-shadow: var(--pwa-shadow);
    animation: pwaSlideDown 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    font-family: var(--pwa-font);
}

.pwa-update-banner.hiding {
    animation: pwaSlideUp 0.3s ease-out forwards;
}

.pwa-update-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    max-width: 1200px;
    margin: 0 auto;
    color: #fff;
    flex-wrap: wrap;
}

.pwa-update-content > i {
    font-size: 1.5rem;
    animation: pwaRotate 2s ease-in-out infinite;
}

.pwa-update-content > span {
    font-size: 0.95rem;
    font-weight: 600;
}

.pwa-update-btn {
    background: rgba(255, 255, 255, 0.95);
    color: var(--pwa-primary);
    border: none;
    padding: 10px 24px;
    border-radius: var(--pwa-radius-pill);
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--pwa-transition);
    font-family: inherit;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.pwa-update-btn:hover {
    background: #fff;
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.pwa-update-btn:active {
    transform: translateY(0) scale(0.98);
}

.pwa-dismiss-btn {
    background: rgba(255, 255, 255, 0.15);
    border: 2px solid rgba(255, 255, 255, 0.4);
    color: #fff;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--pwa-transition);
    padding: 0;
    flex-shrink: 0;
}

.pwa-dismiss-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: #fff;
    transform: rotate(90deg);
}

.pwa-dismiss-btn i {
    font-size: 1.1rem !important;
}

/* ============================================ */
/* PWA INSTALL BANNER                          */
/* ============================================ */
.pwa-install-banner {
    position: fixed;
    bottom: 90px;
    left: 20px;
    right: 20px;
    z-index: 999999;
    background: #fff;
    border-radius: var(--pwa-radius);
    padding: 18px 22px;
    box-shadow: var(--pwa-shadow-lg);
    max-width: 440px;
    margin: 0 auto;
    font-family: var(--pwa-font);
    opacity: 0;
    transform: translateY(30px);
    transition: var(--pwa-transition);
}

.pwa-install-banner.show {
    opacity: 1;
    transform: translateY(0);
}

.pwa-install-banner.hiding {
    opacity: 0;
    transform: translateY(30px);
}

.pwa-install-content {
    display: flex;
    align-items: center;
    gap: 14px;
    direction: rtl;
}

.pwa-install-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--pwa-radius-sm);
    object-fit: contain;
    background: linear-gradient(135deg, var(--pwa-primary) 0%, var(--pwa-primary-dark) 100%);
    padding: 10px;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.pwa-install-text {
    flex: 1;
    text-align: right;
    min-width: 0;
}

.pwa-install-text strong {
    display: block;
    font-size: 1.05rem;
    color: #1a1a2e;
    margin-bottom: 4px;
    font-weight: 700;
}

.pwa-install-text p {
    font-size: 0.82rem;
    color: #6c757d;
    margin: 0;
    line-height: 1.5;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pwa-install-btn-main {
    background: linear-gradient(135deg, var(--pwa-primary) 0%, var(--pwa-primary-dark) 100%);
    color: #fff;
    border: none;
    padding: 12px 26px;
    border-radius: var(--pwa-radius-pill);
    font-size: 0.92rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--pwa-transition);
    font-family: inherit;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.pwa-install-btn-main:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.5);
}

.pwa-install-btn-main:active {
    transform: translateY(-1px);
}

.pwa-install-banner .pwa-dismiss-btn {
    background: #f5f5f5;
    border: none;
    color: #6c757d;
    width: 32px;
    height: 32px;
}

.pwa-install-banner .pwa-dismiss-btn:hover {
    background: #e9ecef;
    color: #343a40;
    transform: rotate(90deg);
}

/* ============================================ */
/* iOS INSTALL MODAL                           */
/* ============================================ */
.pwa-ios-modal {
    position: fixed;
    inset: 0;
    z-index: 9999999;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    font-family: var(--pwa-font);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.pwa-ios-modal.show {
    opacity: 1;
}

.pwa-ios-modal-content {
    background: #fff;
    border-radius: var(--pwa-radius);
    max-width: 380px;
    width: 100%;
    overflow: hidden;
    box-shadow: var(--pwa-shadow-lg);
    transform: scale(0.9) translateY(20px);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.pwa-ios-modal.show .pwa-ios-modal-content {
    transform: scale(1) translateY(0);
}

.pwa-ios-modal-header {
    background: linear-gradient(135deg, var(--pwa-primary) 0%, var(--pwa-primary-dark) 100%);
    padding: 24px 20px;
    text-align: center;
    position: relative;
}

.pwa-ios-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--pwa-radius-sm);
    background: #fff;
    padding: 8px;
    margin-bottom: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.pwa-ios-modal-header h3 {
    color: #fff;
    font-size: 1.25rem;
    margin: 0;
    font-weight: 700;
}

.pwa-ios-close {
    position: absolute;
    top: 12px;
    left: 12px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--pwa-transition);
}

.pwa-ios-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(90deg);
}

.pwa-ios-modal-body {
    padding: 24px 20px;
    direction: rtl;
    text-align: right;
}

.pwa-ios-modal-body > p {
    color: #495057;
    margin: 0 0 20px;
    font-size: 0.95rem;
}

.pwa-ios-steps {
    list-style: none;
    padding: 0;
    margin: 0;
    counter-reset: step;
}

.pwa-ios-steps li {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 0;
    border-bottom: 1px solid #f1f3f5;
    color: #495057;
    font-size: 0.9rem;
}

.pwa-ios-steps li:last-child {
    border-bottom: none;
}

.pwa-ios-steps .step-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--pwa-primary) 0%, var(--pwa-primary-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.pwa-ios-steps .step-icon i {
    color: #fff;
    font-size: 1.3rem;
}

.pwa-ios-steps li strong {
    color: var(--pwa-primary);
}

/* ============================================ */
/* ONLINE/OFFLINE STATUS BADGE                 */
/* ============================================ */
.online-status-badge {
    position: fixed;
    top: 75px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 999998;
    padding: 12px 28px;
    border-radius: var(--pwa-radius-pill);
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.92rem;
    font-weight: 600;
    box-shadow: var(--pwa-shadow);
    font-family: var(--pwa-font);
    animation: pwaFadeInDown 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.online-status-badge.hiding {
    animation: pwaFadeOutUp 0.3s ease-out forwards;
}

.online-status-badge.online {
    background: linear-gradient(135deg, var(--pwa-success) 0%, var(--pwa-success-dark) 100%);
    color: #fff;
}

.online-status-badge.offline {
    background: linear-gradient(135deg, var(--pwa-danger) 0%, var(--pwa-danger-dark) 100%);
    color: #fff;
}

.online-status-badge i {
    font-size: 1.3rem;
    animation: pwaPulse 2s ease-in-out infinite;
}

/* ============================================ */
/* PWA TOAST NOTIFICATIONS                     */
/* ============================================ */
.pwa-toast {
    position: fixed;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    z-index: 999999;
    padding: 14px 28px;
    border-radius: var(--pwa-radius-sm);
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.92rem;
    font-weight: 600;
    box-shadow: var(--pwa-shadow-lg);
    font-family: var(--pwa-font);
    color: #fff;
    opacity: 0;
    transition: var(--pwa-transition);
}

.pwa-toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.pwa-toast i {
    font-size: 1.3rem;
}

.pwa-toast-success {
    background: linear-gradient(135deg, var(--pwa-success) 0%, var(--pwa-success-dark) 100%);
}

.pwa-toast-error {
    background: linear-gradient(135deg, var(--pwa-danger) 0%, #c0392b 100%);
}

.pwa-toast-warning {
    background: linear-gradient(135deg, var(--pwa-warning) 0%, #f39c12 100%);
    color: #1a1a2e;
}

.pwa-toast-info {
    background: linear-gradient(135deg, var(--pwa-info) 0%, #3498db 100%);
}

/* ============================================ */
/* PWA INSTALL BUTTON (Navbar)                 */
/* ============================================ */
#pwa-install-btn,
.pwa-install-btn {
    display: none;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--pwa-primary) 0%, var(--pwa-primary-dark) 100%);
    color: #fff !important;
    border: none;
    padding: 8px 18px;
    border-radius: var(--pwa-radius-pill);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--pwa-transition);
    font-family: var(--pwa-font);
    text-decoration: none !important;
}

#pwa-install-btn.pwa-can-install,
.pwa-install-btn.pwa-can-install {
    display: inline-flex;
}

#pwa-install-btn:hover,
.pwa-install-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

#pwa-install-btn i,
.pwa-install-btn i {
    font-size: 1.1rem;
    animation: pwaDownloadBounce 2s ease-in-out infinite;
}

/* ============================================ */
/* PWA MODE ADJUSTMENTS                        */
/* ============================================ */
body.pwa-mode {
    /* Ensure no overscroll */
    overscroll-behavior: none;
}

body.pwa-mode .demo-ribbon {
    bottom: 10px;
}

/* Safe area insets for notched devices */
body.pwa-mode.ios-device {
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
}

body.pwa-mode.ios-device .navbar {
    padding-top: calc(env(safe-area-inset-top) + 8px);
}

body.pwa-mode.ios-device .footer {
    padding-bottom: calc(env(safe-area-inset-bottom) + 8px);
}

body.pwa-mode.ios-device .pwa-install-banner {
    bottom: calc(90px + env(safe-area-inset-bottom));
}

/* Standalone mode adjustments */
@media (display-mode: standalone) {
    .pwa-install-banner,
    #pwa-install-btn,
    .pwa-install-btn {
        display: none !important;
    }
    
    /* Disable text selection except in inputs */
    body {
        -webkit-user-select: none;
        user-select: none;
        -webkit-touch-callout: none;
    }
    
    input, textarea, [contenteditable="true"] {
        -webkit-user-select: text;
        user-select: text;
    }
}

/* ============================================ */
/* ANIMATIONS                                  */
/* ============================================ */
@keyframes pwaSlideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes pwaSlideUp {
    from {
        transform: translateY(0);
        opacity: 1;
    }
    to {
        transform: translateY(-100%);
        opacity: 0;
    }
}

@keyframes pwaFadeInDown {
    from {
        transform: translate(-50%, -30px);
        opacity: 0;
    }
    to {
        transform: translate(-50%, 0);
        opacity: 1;
    }
}

@keyframes pwaFadeOutUp {
    from {
        transform: translate(-50%, 0);
        opacity: 1;
    }
    to {
        transform: translate(-50%, -30px);
        opacity: 0;
    }
}

@keyframes pwaRotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes pwaPulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.6;
    }
}

@keyframes pwaDownloadBounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(3px);
    }
}

/* ============================================ */
/* RESPONSIVE DESIGN                           */
/* ============================================ */
@media (max-width: 768px) {
    .pwa-update-banner {
        padding: 12px 16px;
    }
    
    .pwa-update-content {
        gap: 10px;
        justify-content: space-between;
    }
    
    .pwa-update-content > span {
        font-size: 0.85rem;
        flex: 1;
        text-align: center;
    }
    
    .pwa-update-btn {
        padding: 8px 16px;
        font-size: 0.8rem;
    }
    
    .pwa-install-banner {
        bottom: 75px;
        left: 12px;
        right: 12px;
        padding: 16px 18px;
    }
    
    .pwa-install-content {
        gap: 12px;
    }
    
    .pwa-install-icon {
        width: 48px;
        height: 48px;
        padding: 8px;
    }
    
    .pwa-install-text strong {
        font-size: 0.95rem;
    }
    
    .pwa-install-text p {
        font-size: 0.78rem;
    }
    
    .pwa-install-btn-main {
        padding: 10px 20px;
        font-size: 0.85rem;
    }
    
    .online-status-badge {
        padding: 10px 20px;
        font-size: 0.85rem;
        top: 65px;
    }
    
    .pwa-toast {
        bottom: 80px;
        padding: 12px 20px;
        font-size: 0.85rem;
        max-width: calc(100% - 40px);
    }
    
    .pwa-ios-modal-content {
        margin: 0 10px;
    }
    
    .pwa-ios-modal-header {
        padding: 20px 16px;
    }
    
    .pwa-ios-icon {
        width: 56px;
        height: 56px;
    }
    
    .pwa-ios-modal-body {
        padding: 20px 16px;
    }
    
    .pwa-ios-steps li {
        padding: 12px 0;
        font-size: 0.85rem;
    }
    
    .pwa-ios-steps .step-icon {
        width: 40px;
        height: 40px;
    }
}

@media (max-width: 480px) {
    .pwa-update-content > i {
        display: none;
    }
    
    .pwa-update-content > span {
        font-size: 0.8rem;
    }
    
    .pwa-install-banner {
        border-radius: var(--pwa-radius-sm);
    }
    
    .pwa-install-icon {
        width: 44px;
        height: 44px;
        border-radius: 10px;
    }
    
    .pwa-install-btn-main {
        padding: 8px 16px;
    }
    
    .pwa-install-btn-main i {
        display: none;
    }
}

/* ============================================ */
/* REDUCED MOTION PREFERENCE                   */
/* ============================================ */
@media (prefers-reduced-motion: reduce) {
    .pwa-update-banner,
    .pwa-update-banner.hiding,
    .pwa-install-banner,
    .pwa-install-banner.show,
    .pwa-install-banner.hiding,
    .online-status-badge,
    .online-status-badge.hiding,
    .pwa-toast,
    .pwa-toast.show,
    .pwa-ios-modal,
    .pwa-ios-modal.show,
    .pwa-ios-modal-content {
        animation: none !important;
        transition: opacity 0.2s ease !important;
    }
    
    .pwa-update-content > i,
    .online-status-badge i,
    #pwa-install-btn i,
    .pwa-install-btn i {
        animation: none !important;
    }
}

/* ============================================ */
/* DARK MODE SUPPORT                           */
/* ============================================ */
@media (prefers-color-scheme: dark) {
    .pwa-install-banner {
        background: #1e1e2d;
    }
    
    .pwa-install-text strong {
        color: #fff;
    }
    
    .pwa-install-text p {
        color: #a0a0b0;
    }
    
    .pwa-install-banner .pwa-dismiss-btn {
        background: #2d2d3d;
        color: #a0a0b0;
    }
    
    .pwa-install-banner .pwa-dismiss-btn:hover {
        background: #3d3d4d;
        color: #fff;
    }
    
    .pwa-ios-modal-content {
        background: #1e1e2d;
    }
    
    .pwa-ios-modal-body > p,
    .pwa-ios-steps li {
        color: #d0d0e0;
    }
    
    .pwa-ios-steps li {
        border-bottom-color: #2d2d3d;
    }
    
    .pwa-ios-icon {
        background: #2d2d3d;
    }
}