/* ================================================================
   ADD PDF META DATA - Complete Styling
   Version: 1.0
   ================================================================ */

/* ================================================================
   1. CSS VARIABLES
   ================================================================ */
:root {
    /* Primary Colors */
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #dbeafe;
    --primary-dark: #1e40af;
    
    /* Secondary Colors */
    --secondary: #f3f4f6;
    --secondary-hover: #e5e7eb;
    
    /* Success Colors */
    --success: #10b981;
    --success-hover: #059669;
    --success-light: #d1fae5;
    
    /* Danger Colors */
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --danger-light: #fee2e2;
    
    /* Warning Colors */
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    
    /* Text Colors */
    --text: #1f2937;
    --text-secondary: #4b5563;
    --text-light: #6b7280;
    --text-white: #ffffff;
    
    /* Background Colors */
    --bg-white: #ffffff;
    --bg-light: #f8fafc;
    --bg-gray: #f1f5f9;
    --bg-dark: #0f172a;
    
    /* Border Colors */
    --border: #e5e7eb;
    --border-light: #f1f5f9;
    --border-dark: #d1d5db;
    
    /* Effects */
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Container */
    --container-max: 720px;
}

/* ================================================================
   2. TOOL WRAPPER
   ================================================================ */
.tool-wrapper.edit-metadata-tool {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px 40px;
}

/* ================================================================
   3. UPLOAD AREA
   ================================================================ */
.tool-wrapper.edit-metadata-tool .upload-area {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto 24px;
    border: 2px dashed var(--border-dark);
    border-radius: var(--radius-lg);
    background: var(--bg-white);
    padding: 48px 24px;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.tool-wrapper.edit-metadata-tool .upload-area::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.03), rgba(16, 185, 129, 0.03));
    opacity: 0;
    transition: var(--transition);
}

.tool-wrapper.edit-metadata-tool .upload-area:hover {
    border-color: var(--primary);
    background: var(--bg-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.tool-wrapper.edit-metadata-tool .upload-area:hover::before {
    opacity: 1;
}

.tool-wrapper.edit-metadata-tool .upload-area.drag-over {
    border-color: var(--primary);
    background: var(--primary-light);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15), var(--shadow-lg);
    transform: scale(1.02);
}

.tool-wrapper.edit-metadata-tool .upload-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    position: relative;
    z-index: 1;
}

.tool-wrapper.edit-metadata-tool .upload-icon {
    font-size: 56px;
    color: var(--primary);
    opacity: 0.8;
    transition: var(--transition);
}

.tool-wrapper.edit-metadata-tool .upload-area:hover .upload-icon {
    transform: scale(1.1) rotate(-5deg);
    opacity: 1;
}

.tool-wrapper.edit-metadata-tool .upload-text {
    font-size: 22px;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.5px;
}

.tool-wrapper.edit-metadata-tool .upload-hint {
    font-size: 15px;
    color: var(--text-light);
    margin-bottom: 4px;
}

.tool-wrapper.edit-metadata-tool .upload-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    color: var(--text-white);
    border: none;
    padding: 12px 32px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.3);
    margin-top: 4px;
    position: relative;
}

.tool-wrapper.edit-metadata-tool .upload-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(37, 99, 235, 0.4);
}

.tool-wrapper.edit-metadata-tool .upload-btn:active {
    transform: translateY(0px) scale(0.98);
}

.tool-wrapper.edit-metadata-tool .upload-btn input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
    width: 100%;
    height: 100%;
}

.tool-wrapper.edit-metadata-tool .upload-btn i {
    font-size: 18px;
}

/* ================================================================
   4. EDIT SECTION (Metadata Form)
   ================================================================ */
.tool-wrapper.edit-metadata-tool .edit-section {
    max-width: var(--container-max);
    margin: 0 auto 24px;
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    box-shadow: var(--shadow);
    animation: fadeIn 0.4s ease;
}

.tool-wrapper.edit-metadata-tool .edit-section.hidden {
    display: none;
}

.tool-wrapper.edit-metadata-tool .edit-section:not(.hidden) {
    display: block;
}

.tool-wrapper.edit-metadata-tool .edit-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text);
    margin: 0 0 24px 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.tool-wrapper.edit-metadata-tool .edit-title i {
    color: var(--primary);
    font-size: 22px;
}

.tool-wrapper.edit-metadata-tool .form-group {
    margin-bottom: 18px;
}

.tool-wrapper.edit-metadata-tool .form-group:last-of-type {
    margin-bottom: 0;
}

.tool-wrapper.edit-metadata-tool .form-label {
    display: block;
    font-weight: 600;
    font-size: 14px;
    color: var(--text);
    margin-bottom: 6px;
}

.tool-wrapper.edit-metadata-tool .form-input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 15px;
    background: var(--bg-white);
    transition: var(--transition);
    color: var(--text);
    font-family: inherit;
    box-sizing: border-box;
}

.tool-wrapper.edit-metadata-tool .form-input:hover {
    border-color: var(--border-dark);
}

.tool-wrapper.edit-metadata-tool .form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.tool-wrapper.edit-metadata-tool .form-input::placeholder {
    color: var(--text-light);
    opacity: 0.7;
}

/* ================================================================
   5. ACTION BUTTONS
   ================================================================ */
.tool-wrapper.edit-metadata-tool .action-buttons {
    max-width: var(--container-max);
    margin: 0 auto 24px;
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    justify-content: center;
    align-items: center;
}

.tool-wrapper.edit-metadata-tool .action-buttons.hidden {
    display: none;
}

.tool-wrapper.edit-metadata-tool .action-buttons:not(.hidden) {
    display: flex;
    animation: fadeIn 0.4s ease;
}

.tool-wrapper.edit-metadata-tool .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 32px;
    border: none;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    text-decoration: none;
    min-width: 160px;
}

.tool-wrapper.edit-metadata-tool .btn:active {
    transform: scale(0.97);
}

.tool-wrapper.edit-metadata-tool .btn i {
    font-size: 16px;
}

/* Primary Button */
.tool-wrapper.edit-metadata-tool .btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    color: var(--text-white);
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.35);
}

.tool-wrapper.edit-metadata-tool .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(37, 99, 235, 0.45);
}

.tool-wrapper.edit-metadata-tool .btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* Success Button */
.tool-wrapper.edit-metadata-tool .btn-success {
    background: linear-gradient(135deg, var(--success), var(--success-hover));
    color: var(--text-white);
    box-shadow: 0 4px 16px rgba(16, 185, 129, 0.35);
}

.tool-wrapper.edit-metadata-tool .btn-success:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(16, 185, 129, 0.45);
}

.tool-wrapper.edit-metadata-tool .btn-success.hidden {
    display: none;
}

.tool-wrapper.edit-metadata-tool .btn-success:not(.hidden) {
    display: inline-flex;
}

/* Button large */
.tool-wrapper.edit-metadata-tool .btn-lg {
    padding: 14px 40px;
    font-size: 16px;
    min-width: 200px;
}

/* ================================================================
   6. OUTPUT SECTION (Result)
   ================================================================ */
.tool-wrapper.edit-metadata-tool .output-section {
    max-width: var(--container-max);
    margin: 0 auto 24px;
    background: var(--success-light);
    border: 1px solid #6ee7b7;
    border-radius: var(--radius);
    padding: 28px 32px;
    box-shadow: var(--shadow);
    animation: fadeIn 0.5s ease;
    text-align: center;
}

.tool-wrapper.edit-metadata-tool .output-section.hidden {
    display: none;
}

.tool-wrapper.edit-metadata-tool .output-section:not(.hidden) {
    display: block;
}

.tool-wrapper.edit-metadata-tool .output-section .edit-title {
    color: #065f46;
    margin-bottom: 12px;
    justify-content: center;
}

.tool-wrapper.edit-metadata-tool .output-section .edit-title i {
    color: var(--success);
}

.tool-wrapper.edit-metadata-tool .output-section p {
    font-size: 15px;
    color: var(--text-secondary);
    margin: 0 0 20px 0;
}

.tool-wrapper.edit-metadata-tool .output-section .download-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 32px;
    background: linear-gradient(135deg, var(--success), var(--success-hover));
    color: var(--text-white);
    border: none;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    text-decoration: none;
    box-shadow: 0 4px 16px rgba(16, 185, 129, 0.35);
}

.tool-wrapper.edit-metadata-tool .output-section .download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(16, 185, 129, 0.45);
}

.tool-wrapper.edit-metadata-tool .output-section .download-btn i {
    font-size: 18px;
}

/* ================================================================
   7. LOADING INDICATOR
   ================================================================ */
.tool-wrapper.edit-metadata-tool .loading {
    max-width: var(--container-max);
    margin: 0 auto 24px;
    padding: 40px 20px;
    text-align: center;
    background: var(--bg-white);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.tool-wrapper.edit-metadata-tool .loading.hidden {
    display: none;
}

.tool-wrapper.edit-metadata-tool .loading:not(.hidden) {
    display: flex;
    animation: fadeIn 0.3s ease;
}

.tool-wrapper.edit-metadata-tool .loading-spinner {
    font-size: 48px;
    color: var(--primary);
    animation: spin 1s linear infinite;
}

.tool-wrapper.edit-metadata-tool .loading div {
    font-size: 16px;
    color: var(--text-secondary);
    font-weight: 500;
}


/* ================================================================
   9. FILE INFO (اختياري - يمكن إضافتها)
   ================================================================ */
.tool-wrapper.edit-metadata-tool .file-info {
    max-width: var(--container-max);
    margin: 0 auto 16px;
    padding: 14px 20px;
    background: var(--bg-light);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    font-size: 14px;
    color: var(--text-secondary);
}

.tool-wrapper.edit-metadata-tool .file-info .file-name {
    font-weight: 600;
    color: var(--text);
    flex: 1;
    word-break: break-word;
}

.tool-wrapper.edit-metadata-tool .file-info .file-size {
    color: var(--text-light);
    white-space: nowrap;
}

/* ================================================================
   10. ANIMATIONS
   ================================================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ================================================================
   11. RESPONSIVE DESIGN
   ================================================================ */
@media (max-width: 768px) {
    .tool-wrapper.edit-metadata-tool {
        padding: 0 12px 30px;
    }

    .tool-wrapper.edit-metadata-tool .upload-area {
        padding: 32px 16px;
    }

    .tool-wrapper.edit-metadata-tool .upload-text {
        font-size: 18px;
    }

    .tool-wrapper.edit-metadata-tool .upload-hint {
        font-size: 13px;
    }

    .tool-wrapper.edit-metadata-tool .upload-icon {
        font-size: 42px;
    }

    .tool-wrapper.edit-metadata-tool .upload-btn {
        padding: 10px 24px;
        font-size: 14px;
    }

    .tool-wrapper.edit-metadata-tool .edit-section {
        padding: 20px;
        margin: 0 0 20px 0;
    }

    .tool-wrapper.edit-metadata-tool .edit-title {
        font-size: 18px;
    }

    .tool-wrapper.edit-metadata-tool .form-input {
        padding: 10px 14px;
        font-size: 14px;
    }

    .tool-wrapper.edit-metadata-tool .action-buttons {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }

    .tool-wrapper.edit-metadata-tool .btn {
        width: 100%;
        justify-content: center;
        padding: 12px 20px;
        min-width: unset;
    }

    .tool-wrapper.edit-metadata-tool .btn-lg {
        padding: 12px 24px;
        font-size: 15px;
        min-width: unset;
    }

    .tool-wrapper.edit-metadata-tool .output-section {
        padding: 20px;
        margin: 0 0 20px 0;
    }

    .tool-wrapper.edit-metadata-tool .output-section .download-btn {
        width: 100%;
        justify-content: center;
    }

    .tool-wrapper.edit-metadata-tool .loading {
        padding: 30px 16px;
    }

    .tool-wrapper.edit-metadata-tool .loading-spinner {
        font-size: 36px;
    }

    .tool-wrapper.edit-metadata-tool .toast {
        bottom: 16px;
        right: 16px;
        left: 16px;
        max-width: none;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .tool-wrapper.edit-metadata-tool .upload-text {
        font-size: 16px;
    }

    .tool-wrapper.edit-metadata-tool .upload-icon {
        font-size: 36px;
    }

    .tool-wrapper.edit-metadata-tool .upload-btn {
        padding: 8px 18px;
        font-size: 13px;
    }

    .tool-wrapper.edit-metadata-tool .edit-section {
        padding: 16px;
    }

    .tool-wrapper.edit-metadata-tool .edit-title {
        font-size: 16px;
    }

    .tool-wrapper.edit-metadata-tool .form-input {
        padding: 8px 12px;
        font-size: 13px;
    }

    .tool-wrapper.edit-metadata-tool .output-section {
        padding: 16px;
    }

    .tool-wrapper.edit-metadata-tool .output-section .edit-title {
        font-size: 16px;
    }

    .tool-wrapper.edit-metadata-tool .output-section p {
        font-size: 14px;
    }

    .tool-wrapper.edit-metadata-tool .btn {
        font-size: 14px;
        padding: 10px 16px;
    }

    .tool-wrapper.edit-metadata-tool .loading div {
        font-size: 14px;
    }
}

/* ================================================================
   12. DARK MODE SUPPORT
   ================================================================ */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-white: #1e293b;
        --bg-light: #0f172a;
        --bg-gray: #1e293b;
        --text: #f1f5f9;
        --text-secondary: #cbd5e1;
        --text-light: #94a3b8;
        --border: #334155;
        --border-light: #1e293b;
        --border-dark: #475569;
        --shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
        --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
        --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.5);
    }

    .tool-wrapper.edit-metadata-tool .upload-area {
        background: var(--bg-white);
        border-color: var(--border);
    }

    .tool-wrapper.edit-metadata-tool .upload-area:hover {
        background: var(--bg-light);
    }

    .tool-wrapper.edit-metadata-tool .edit-section {
        background: var(--bg-white);
        border-color: var(--border);
    }

    .tool-wrapper.edit-metadata-tool .form-input {
        background: var(--bg-light);
        border-color: var(--border);
        color: var(--text);
    }

    .tool-wrapper.edit-metadata-tool .form-input:focus {
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
    }

    .tool-wrapper.edit-metadata-tool .output-section {
        background: rgba(16, 185, 129, 0.15);
        border-color: #065f46;
    }

    .tool-wrapper.edit-metadata-tool .output-section .edit-title {
        color: #6ee7b7;
    }

    .tool-wrapper.edit-metadata-tool .output-section p {
        color: var(--text-secondary);
    }

    .tool-wrapper.edit-metadata-tool .loading {
        background: var(--bg-white);
        border-color: var(--border);
    }

    .tool-wrapper.edit-metadata-tool .toast {
        background: #1e293b;
        color: #f1f5f9;
    }
}

/* ================================================================
   13. RTL SUPPORT
   ================================================================ */
[dir="rtl"] .tool-wrapper.edit-metadata-tool .upload-area:hover .upload-icon {
    transform: scale(1.1) rotate(5deg);
}

[dir="rtl"] .tool-wrapper.edit-metadata-tool .edit-title {
    flex-direction: row-reverse;
}

[dir="rtl"] .tool-wrapper.edit-metadata-tool .btn i,
[dir="rtl"] .tool-wrapper.edit-metadata-tool .upload-btn i,
[dir="rtl"] .tool-wrapper.edit-metadata-tool .output-section .download-btn i {
    margin-left: 4px;
    margin-right: 0;
}

[dir="rtl"] .tool-wrapper.edit-metadata-tool .form-label {
    text-align: right;
}

[dir="rtl"] .tool-wrapper.edit-metadata-tool .toast {
    right: auto;
    left: 30px;
}

@media (max-width: 768px) {
    [dir="rtl"] .tool-wrapper.edit-metadata-tool .toast {
        left: 16px;
        right: 16px;
    }
}