/* ========================================
   PWA INSTALL PROMPT STYLES
   Item 70/78: Custom "Add to Home Screen" prompt
   ======================================== */

/* Prompt Container */
.pwa-prompt {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.pwa-prompt.show {
    opacity: 1;
    visibility: visible;
}

/* Overlay */
.pwa-prompt-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Prompt Card */
.pwa-prompt-card {
    position: relative;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    padding: 40px 32px;
    max-width: 420px;
    width: 90%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    transform: translateY(20px);
    animation: slideUp 0.4s ease forwards;
    animation-delay: 0.1s;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Close Button */
.pwa-prompt-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 32px;
    height: 32px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pwa-prompt-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
}

.pwa-prompt-close:active {
    transform: rotate(90deg) scale(0.95);
}

/* Icon */
.pwa-prompt-icon {
    font-size: 64px;
    text-align: center;
    margin-bottom: 20px;
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* Title */
.pwa-prompt-title {
    font-size: 28px;
    font-weight: 800;
    color: white;
    text-align: center;
    margin: 0 0 16px 0;
    background: linear-gradient(135deg, #fff 0%, #4facfe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Message */
.pwa-prompt-message {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
    text-align: center;
    margin: 0 0 24px 0;
    line-height: 1.6;
}

/* Benefits List */
.pwa-prompt-benefits {
    list-style: none;
    padding: 0;
    margin: 0 0 32px 0;
}

.pwa-prompt-benefits li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    margin-bottom: 10px;
    transition: all 0.3s ease;
}

.pwa-prompt-benefits li:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateX(5px);
}

.pwa-prompt-benefits li:last-child {
    margin-bottom: 0;
}

.benefit-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.pwa-prompt-benefits li span:last-child {
    color: rgba(255, 255, 255, 0.9);
    font-size: 15px;
    font-weight: 500;
}

/* Actions */
.pwa-prompt-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 16px;
}

/* Install Button */
.pwa-prompt-install {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 32px;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 8px 24px rgba(79, 172, 254, 0.4);
}

.pwa-prompt-install:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(79, 172, 254, 0.6);
}

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

.pwa-prompt-install .button-icon {
    font-size: 22px;
}

/* Dismiss Button */
.pwa-prompt-dismiss {
    padding: 12px 32px;
    background: transparent;
    color: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.pwa-prompt-dismiss:hover {
    background: rgba(255, 255, 255, 0.05);
    color: rgba(255, 255, 255, 0.9);
}

.pwa-prompt-dismiss:active {
    transform: scale(0.98);
}

/* Note */
.pwa-prompt-note {
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
}

/* ======================================== */
/* INSTALL BUTTON IN HEADER */
/* ======================================== */

.pwa-install-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    color: white;
    border: none;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(79, 172, 254, 0.3);
    white-space: nowrap;
}

.pwa-install-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(79, 172, 254, 0.5);
}

.pwa-install-button:active {
    transform: translateY(0);
}

.pwa-install-button .button-icon {
    font-size: 18px;
}

/* Floating Install Button (if no header found) */
.pwa-install-button.floating {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 9999;
    padding: 14px 24px;
    box-shadow: 0 8px 24px rgba(79, 172, 254, 0.4);
    animation: floatIn 0.5s ease;
}

@keyframes floatIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.pwa-install-button.floating:hover {
    transform: translateY(-3px);
}

/* ======================================== */
/* MOBILE RESPONSIVE */
/* ======================================== */

@media (max-width: 768px) {
    .pwa-prompt-card {
        padding: 32px 24px;
        max-width: 95%;
    }

    .pwa-prompt-icon {
        font-size: 56px;
    }

    .pwa-prompt-title {
        font-size: 24px;
    }

    .pwa-prompt-message {
        font-size: 15px;
    }

    .pwa-prompt-benefits li {
        padding: 10px 12px;
    }

    .benefit-icon {
        font-size: 20px;
    }

    .pwa-prompt-benefits li span:last-child {
        font-size: 14px;
    }

    .pwa-prompt-install {
        padding: 14px 28px;
        font-size: 16px;
    }

    .pwa-install-button .button-text {
        display: none;
    }

    .pwa-install-button {
        padding: 12px 16px;
        border-radius: 50%;
    }

    .pwa-install-button .button-icon {
        font-size: 20px;
    }

    .pwa-install-button.floating {
        bottom: 80px; /* Above back-to-top button */
    }
}

/* ======================================== */
/* DARK THEME SUPPORT */
/* ======================================== */

[data-theme="dark"] .pwa-prompt-card {
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
    border-color: rgba(255, 255, 255, 0.15);
}

[data-theme="dark"] .pwa-prompt-benefits li {
    background: rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] .pwa-prompt-benefits li:hover {
    background: rgba(255, 255, 255, 0.12);
}

/* ======================================== */
/* LIGHT THEME SUPPORT */
/* ======================================== */

[data-theme="light"] .pwa-prompt-card {
    background: linear-gradient(135deg, #ffffff 0%, #f5f5f5 100%);
    border-color: rgba(0, 0, 0, 0.1);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

[data-theme="light"] .pwa-prompt-title {
    background: linear-gradient(135deg, #1a1a1a 0%, #4facfe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

[data-theme="light"] .pwa-prompt-message {
    color: rgba(0, 0, 0, 0.7);
}

[data-theme="light"] .pwa-prompt-benefits li {
    background: rgba(0, 0, 0, 0.03);
}

[data-theme="light"] .pwa-prompt-benefits li:hover {
    background: rgba(0, 0, 0, 0.06);
}

[data-theme="light"] .pwa-prompt-benefits li span:last-child {
    color: rgba(0, 0, 0, 0.8);
}

[data-theme="light"] .pwa-prompt-dismiss {
    color: rgba(0, 0, 0, 0.6);
    border-color: rgba(0, 0, 0, 0.2);
}

[data-theme="light"] .pwa-prompt-dismiss:hover {
    background: rgba(0, 0, 0, 0.05);
    color: rgba(0, 0, 0, 0.8);
}

[data-theme="light"] .pwa-prompt-note {
    color: rgba(0, 0, 0, 0.4);
}

[data-theme="light"] .pwa-prompt-close {
    background: rgba(0, 0, 0, 0.05);
    color: rgba(0, 0, 0, 0.7);
}

[data-theme="light"] .pwa-prompt-close:hover {
    background: rgba(0, 0, 0, 0.1);
}

/* ======================================== */
/* REDUCED MOTION */
/* ======================================== */

@media (prefers-reduced-motion: reduce) {
    .pwa-prompt-card {
        animation: none;
        transform: none;
    }

    .pwa-prompt-icon {
        animation: none;
    }

    .pwa-prompt-benefits li:hover {
        transform: none;
    }

    .pwa-prompt-install:hover,
    .pwa-install-button:hover {
        transform: none;
    }
}

/* ======================================== */
/* PRINT */
/* ======================================== */

@media print {
    .pwa-prompt,
    .pwa-install-button {
        display: none !important;
    }
}