/* ═══════════════════════════════════════════════════════════════════════════
   🖼️ سیستم آپلود تصویر - استایل کامل
   نسخه: 1.0.0
   ═══════════════════════════════════════════════════════════════════════════ */

/* ═══════════════════════════════════════════════════
   متغیرهای CSS
   ═══════════════════════════════════════════════════ */
:root {
    --uploader-primary: #667eea;
    --uploader-primary-dark: #5568d3;
    --uploader-success: #10b981;
    --uploader-danger: #ef4444;
    --uploader-warning: #f59e0b;
    --uploader-info: #3b82f6;
    --uploader-border: #e5e7eb;
    --uploader-border-hover: #667eea;
    --uploader-bg-light: #f8fafc;
    --uploader-bg-hover: #f0f4ff;
    --uploader-text: #2d3748;
    --uploader-text-muted: #718096;
    --uploader-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --uploader-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --uploader-shadow-lg: 0 10px 20px -3px rgba(0, 0, 0, 0.15);
    --uploader-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.2);
    --uploader-radius: 12px;
    --uploader-radius-sm: 8px;
    --uploader-radius-lg: 16px;
    --uploader-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ═══════════════════════════════════════════════════
   شمارنده تصاویر
   ═══════════════════════════════════════════════════ */
.images-counter {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 20px;
    background: linear-gradient(135deg, var(--uploader-primary) 0%, #764ba2 100%);
    border-radius: var(--uploader-radius);
    margin-bottom: 20px;
    color: white;
    font-weight: 500;
    box-shadow: var(--uploader-shadow);
    animation: slideDown 0.4s ease-out;
}

    .images-counter span {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 14px;
    }

    .images-counter .count {
        font-size: 1.3em;
        font-weight: 700;
        padding: 2px 8px;
        background: rgba(255, 255, 255, 0.2);
        border-radius: 6px;
        min-width: 30px;
        text-align: center;
    }

    .images-counter i {
        font-size: 18px;
        opacity: 0.9;
    }

    .images-counter .text-success {
        color: #ffffff !important;
        background: rgba(16, 185, 129, 0.3);
        padding: 4px 12px;
        border-radius: 20px;
        font-size: 13px;
    }

/* ═══════════════════════════════════════════════════
   ناحیه آپلود (Upload Zone)
   ═══════════════════════════════════════════════════ */
.upload-zone {
    border: 3px dashed var(--uploader-border);
    border-radius: var(--uploader-radius-lg);
    padding: 50px 30px;
    text-align: center;
    background: var(--uploader-bg-light);
    cursor: pointer;
    transition: var(--uploader-transition);
    position: relative;
    overflow: hidden;
    margin-bottom: 20px;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

    .upload-zone::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
        opacity: 0;
        transition: var(--uploader-transition);
    }

    .upload-zone:hover {
        border-color: var(--uploader-border-hover);
        background: var(--uploader-bg-hover);
        transform: translateY(-2px);
        box-shadow: var(--uploader-shadow);
    }

        .upload-zone:hover::before {
            opacity: 1;
        }

    .upload-zone.dragover {
        border-color: var(--uploader-primary);
        background: var(--uploader-bg-hover);
        transform: scale(1.02);
        box-shadow: var(--uploader-shadow-lg);
    }

        .upload-zone.dragover::before {
            opacity: 1;
        }

    .upload-zone i {
        font-size: 60px;
        color: var(--uploader-primary);
        margin-bottom: 20px;
        transition: var(--uploader-transition);
        animation: pulse 2s infinite;
    }

    .upload-zone:hover i {
        transform: scale(1.1);
        color: var(--uploader-primary-dark);
    }

    .upload-zone h5 {
        color: var(--uploader-text);
        margin-bottom: 10px;
        font-weight: 600;
        font-size: 18px;
    }

    .upload-zone p {
        color: var(--uploader-text-muted);
        margin: 8px 0;
        font-size: 15px;
    }

    .upload-zone small {
        color: var(--uploader-text-muted);
        font-size: 13px;
        display: block;
        margin-top: 15px;
        padding: 8px 16px;
        background: rgba(102, 126, 234, 0.1);
        border-radius: 20px;
        display: inline-block;
    }

/* ═══════════════════════════════════════════════════
   گالری تصاویر
   ═══════════════════════════════════════════════════ */
.uploaded-images {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin-top: 20px;
}

@media (max-width: 768px) {
    .uploaded-images {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 12px;
    }
}

@media (max-width: 480px) {
    .uploaded-images {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
}

/* ═══════════════════════════════════════════════════
   آیتم تصویر
   ═══════════════════════════════════════════════════ */
.image-item {
    position: relative;
    border-radius: var(--uploader-radius);
    overflow: hidden;
    background: white;
    box-shadow: var(--uploader-shadow);
    transition: var(--uploader-transition);
    aspect-ratio: 4/3;
    animation: fadeInScale 0.4s ease-out;
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.image-item:hover {
    box-shadow: var(--uploader-shadow-lg);
    transform: translateY(-4px);
}

.image-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: var(--uploader-transition);
}

.image-item:hover img {
    transform: scale(1.05);
}

/* ═══════════════════════════════════════════════════
   Overlay (پوشش روی تصویر)
   ═══════════════════════════════════════════════════ */
.image-item .overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.8) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    opacity: 0;
    transition: var(--uploader-transition);
    backdrop-filter: blur(2px);
}

.image-item:hover .overlay {
    opacity: 1;
}

/* ═══════════════════════════════════════════════════
   دکمه‌های Overlay
   ═══════════════════════════════════════════════════ */
.overlay button {
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 50%;
    background: white;
    color: var(--uploader-text);
    cursor: pointer;
    transition: var(--uploader-transition);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--uploader-shadow);
    font-size: 16px;
}

    .overlay button:hover {
        transform: scale(1.15);
        box-shadow: var(--uploader-shadow-lg);
    }

    .overlay button:active {
        transform: scale(0.95);
    }

.overlay .btn-view:hover {
    background: var(--uploader-info);
    color: white;
}

.overlay .btn-main:hover {
    background: var(--uploader-warning);
    color: white;
}

.overlay .btn-delete:hover {
    background: var(--uploader-danger);
    color: white;
}

.overlay button i {
    font-size: 18px;
}

/* ═══════════════════════════════════════════════════
   نشانگر تصویر اصلی
   ═══════════════════════════════════════════════════ */
.main-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: linear-gradient(135deg, var(--uploader-warning) 0%, #d97706 100%);
    color: white;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 700;
    z-index: 2;
    box-shadow: var(--uploader-shadow);
    display: flex;
    align-items: center;
    gap: 4px;
    animation: bounceIn 0.5s ease-out;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.5);
    }

    50% {
        transform: scale(1.1);
    }

    100% {
        opacity: 1;
        transform: scale(1);
    }
}

.main-badge i {
    font-size: 12px;
    animation: starPulse 1.5s infinite;
}

@keyframes starPulse {
    0%, 100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.2);
    }
}

/* ═══════════════════════════════════════════════════
   اطلاعات فشرده‌سازی
   ═══════════════════════════════════════════════════ */
.compression-info {
    position: absolute;
    bottom: 10px;
    left: 10px;
    background: rgba(16, 185, 129, 0.95);
    color: white;
    padding: 5px 12px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    z-index: 2;
    box-shadow: var(--uploader-shadow);
    display: flex;
    align-items: center;
    gap: 4px;
    backdrop-filter: blur(10px);
}

    .compression-info::before {
        content: '📦';
        font-size: 12px;
    }

/* ═══════════════════════════════════════════════════
   نوار پیشرفت آپلود
   ═══════════════════════════════════════════════════ */
.upload-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: rgba(0, 0, 0, 0.2);
    overflow: hidden;
    z-index: 3;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--uploader-primary) 0%, #764ba2 100%);
    transition: width 0.3s ease;
    position: relative;
    overflow: hidden;
}

    .progress-bar::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
        animation: shimmer 1.5s infinite;
    }

@keyframes shimmer {
    0% {
        transform: translateX(-100%);
    }

    100% {
        transform: translateX(100%);
    }
}

/* ═══════════════════════════════════════════════════
   حالت لودینگ
   ═══════════════════════════════════════════════════ */
.image-item.loading {
    position: relative;
    background: linear-gradient(135deg, #f8fafc 0%, #e5e7eb 100%);
}

    .image-item.loading::after {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 50px;
        height: 50px;
        border: 4px solid rgba(102, 126, 234, 0.1);
        border-top: 4px solid var(--uploader-primary);
        border-radius: 50%;
        animation: spin 1s linear infinite;
        z-index: 2;
    }

@keyframes spin {
    0% {
        transform: translate(-50%, -50%) rotate(0deg);
    }

    100% {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

.image-item.loading img {
    opacity: 0.3;
    filter: blur(2px);
}

/* ═══════════════════════════════════════════════════
   حالت خطا
   ═══════════════════════════════════════════════════ */
.image-item.error {
    border: 2px solid var(--uploader-danger);
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-10px);
    }

    75% {
        transform: translateX(10px);
    }
}

.error-message {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(239, 68, 68, 0.95);
    color: white;
    padding: 10px;
    font-size: 12px;
    text-align: center;
    font-weight: 500;
    z-index: 3;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

    .error-message::before {
        content: '⚠️';
        font-size: 14px;
    }

/* ═══════════════════════════════════════════════════
   نمایشگر تصویر تمام صفحه
   ═══════════════════════════════════════════════════ */
.image-viewer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    animation: fadeIn 0.3s ease-out;
    backdrop-filter: blur(10px);
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.image-viewer-container {
    position: relative;
    max-width: 90%;
    max-height: 90%;
    animation: zoomIn 0.3s ease-out;
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.image-viewer-container img {
    max-width: 100%;
    max-height: 90vh;
    border-radius: var(--uploader-radius);
    box-shadow: var(--uploader-shadow-xl);
}

.close-btn {
    position: absolute;
    top: -50px;
    right: 0;
    width: 45px;
    height: 45px;
    border: none;
    border-radius: 50%;
    background: white;
    color: var(--uploader-text);
    cursor: pointer;
    font-size: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--uploader-transition);
    box-shadow: var(--uploader-shadow);
}

    .close-btn:hover {
        background: var(--uploader-danger);
        color: white;
        transform: rotate(90deg) scale(1.1);
    }

/* ═══════════════════════════════════════════════════
   انیمیشن‌های کمکی
   ═══════════════════════════════════════════════════ */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }

    50% {
        opacity: 0.7;
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ═══════════════════════════════════════════════════
   Tooltip سفارشی
   ═══════════════════════════════════════════════════ */
.image-item [data-tooltip] {
    position: relative;
}

    .image-item [data-tooltip]::before {
        content: attr(data-tooltip);
        position: absolute;
        bottom: 100%;
        left: 50%;
        transform: translateX(-50%) translateY(-5px);
        background: rgba(0, 0, 0, 0.9);
        color: white;
        padding: 6px 12px;
        border-radius: 6px;
        font-size: 12px;
        white-space: nowrap;
        opacity: 0;
        pointer-events: none;
        transition: var(--uploader-transition);
    }

    .image-item [data-tooltip]:hover::before {
        opacity: 1;
        transform: translateX(-50%) translateY(-10px);
    }

/* ═══════════════════════════════════════════════════
   Responsive Design
   ═══════════════════════════════════════════════════ */
@media (max-width: 768px) {
    .upload-zone {
        padding: 40px 20px;
        min-height: 180px;
    }

        .upload-zone i {
            font-size: 48px;
        }

        .upload-zone h5 {
            font-size: 16px;
        }

        .upload-zone p {
            font-size: 14px;
        }

    .images-counter {
        flex-direction: column;
        gap: 10px;
        padding: 12px 16px;
    }

        .images-counter span {
            font-size: 13px;
        }

    .overlay button {
        width: 36px;
        height: 36px;
        font-size: 14px;
    }

    .main-badge {
        font-size: 10px;
        padding: 5px 10px;
    }

    .compression-info {
        font-size: 10px;
        padding: 4px 10px;
    }

    .image-viewer-container {
        max-width: 95%;
    }

    .close-btn {
        top: -45px;
        width: 40px;
        height: 40px;
        font-size: 20px;
    }
}

@media (max-width: 480px) {
    .upload-zone {
        padding: 30px 15px;
        min-height: 150px;
    }

        .upload-zone i {
            font-size: 40px;
            margin-bottom: 15px;
        }

        .upload-zone h5 {
            font-size: 15px;
        }

        .upload-zone p {
            font-size: 13px;
        }

    .overlay button {
        width: 32px;
        height: 32px;
        font-size: 13px;
    }

    .overlay {
        gap: 6px;
    }
}

/* ═══════════════════════════════════════════════════
   حالت تاریک (اختیاری)
   ═══════════════════════════════════════════════════ */
@media (prefers-color-scheme: dark) {
    :root {
        --uploader-border: #374151;
        --uploader-bg-light: #1f2937;
        --uploader-bg-hover: #111827;
        --uploader-text: #f3f4f6;
        --uploader-text-muted: #9ca3af;
    }

    .image-item {
        background: #1f2937;
    }

    .upload-zone {
        background: #1f2937;
        border-color: #374151;
    }

        .upload-zone:hover {
            background: #111827;
        }
}

/* ═══════════════════════════════════════════════════
   پرینت (چاپ)
   ═══════════════════════════════════════════════════ */
@media print {
    .upload-zone,
    .overlay,
    .upload-progress,
    .images-counter {
        display: none !important;
    }

    .uploaded-images {
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
    }

    .image-item {
        box-shadow: none;
        border: 1px solid #e5e7eb;
    }
}

/* ═══════════════════════════════════════════════════
   Accessibility (دسترسی‌پذیری)
   ═══════════════════════════════════════════════════ */
.upload-zone:focus-visible,
.overlay button:focus-visible {
    outline: 3px solid var(--uploader-primary);
    outline-offset: 2px;
}

.overlay button:focus-visible {
    outline-width: 2px;
}

/* کاهش انیمیشن برای کاربران با حساسیت حرکتی */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .upload-zone i {
        animation: none !important;
    }

    .main-badge i {
        animation: none !important;
    }
}

/* ═══════════════════════════════════════════════════
   کلاس‌های کمکی
   ═══════════════════════════════════════════════════ */
.uploader-hidden {
    display: none !important;
}

.uploader-disabled {
    opacity: 0.6;
    pointer-events: none;
    cursor: not-allowed;
}

.uploader-fade-in {
    animation: fadeIn 0.3s ease-out;
}

.uploader-fade-out {
    animation: fadeOut 0.3s ease-out;
}

@keyframes fadeOut {
    from {
        opacity: 1;
    }

    to {
        opacity: 0;
    }
}

/* ═══════════════════════════════════════════════════
   پایان فایل
   ═══════════════════════════════════════════════════ */