/* File Converter Hub CSS - Vacancy Job Alert */
:root {
    --primary: #3498db;
    --primary-dark: #2980b9;
    --secondary: #2ecc71;
    --secondary-dark: #27ae60;
    --danger: #e74c3c;
    --danger-dark: #c0392b;
    --warning: #f39c12;
    --warning-dark: #d35400;
    --purple: #9b59b6;
    --orange: #e67e22;
    --dark: #2c3e50;
    --light: #ecf0f1;
    --gray: #7f8c8d;
    --light-gray: #f8f9fa;
    --shadow: 0 8px 25px rgba(0,0,0,0.08);
    --radius: 12px;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    color: #333;
    line-height: 1.6;
}

.tool-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    min-height: calc(100vh - 200px);
}

/* Main Header */
.tool-header {
    text-align: center;
    margin-bottom: 40px;
    padding: 40px 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: var(--radius);
    color: white;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.tool-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M0,0 L100,0 L100,100 Z" fill="rgba(255,255,255,0.1)"/></svg>');
    opacity: 0.1;
}

.tool-header h1 {
    font-family: 'Poppins', sans-serif;
    font-size: 2.8em;
    font-weight: 600;
    margin-bottom: 15px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.tool-header p {
    font-size: 1.2em;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.tool-header .icon {
    font-size: 3em;
    margin-bottom: 20px;
    display: block;
}

/* Secondary Header */
.tool-header.secondary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    text-align: left;
    padding: 25px 30px;
    margin-bottom: 30px;
}

.tool-header.secondary .icon {
    font-size: 2em;
    margin-bottom: 10px;
    display: inline-block;
}

.tool-header.secondary h1 {
    font-size: 2em;
    margin-bottom: 5px;
}

.tool-header.secondary p {
    margin: 0;
    text-align: left;
    max-width: none;
}

/* Converter Grid */
.converter-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
    animation: fadeIn 0.5s ease-out;
}

.converter-card {
    background: white;
    border-radius: var(--radius);
    padding: 25px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.converter-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
}

.converter-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary);
    box-shadow: 0 15px 30px rgba(52, 152, 219, 0.15);
}

.converter-card .card-icon {
    font-size: 2.5em;
    margin-bottom: 15px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.converter-card h3 {
    color: var(--dark);
    margin-bottom: 10px;
    font-family: 'Poppins', sans-serif;
    font-size: 1.3em;
}

.converter-card p {
    color: var(--gray);
    margin-bottom: 15px;
    font-size: 0.95em;
    min-height: 40px;
}

.card-tags {
    display: flex;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
}

.tag {
    background: #f0f7ff;
    color: var(--primary);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8em;
    font-weight: 500;
    transition: var(--transition);
}

.converter-card:hover .tag {
    background: var(--primary);
    color: white;
}

/* Tool Box */
.tool-box {
    background: white;
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow);
    margin-bottom: 30px;
    border: 1px solid rgba(0,0,0,0.05);
}

.tool-inputs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 25px;
}

.tool-input {
    margin-bottom: 20px;
}

.tool-input label {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
    color: var(--dark);
    font-weight: 600;
    font-size: 0.95em;
    font-family: 'Poppins', sans-serif;
}

.tool-input input[type="file"],
.tool-input input[type="number"],
.tool-input input[type="text"] {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 15px;
    transition: var(--transition);
    background: var(--light-gray);
}

.tool-input input[type="file"] {
    cursor: pointer;
}

.tool-input input[type="file"]:hover {
    border-color: var(--primary);
    background: #f0f7ff;
}

.tool-input select {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 15px;
    transition: var(--transition);
    background: white;
    appearance: none;
    background-image: url('data:image/svg+xml;charset=UTF-8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="%23333"><path d="M7 10l5 5 5-5z"/></svg>');
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 20px;
    padding-right: 40px;
}

.tool-input select:focus,
.tool-input input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.file-info {
    display: block;
    margin-top: 6px;
    color: var(--gray);
    font-size: 0.85em;
    font-style: italic;
}

/* Tool Buttons */
.tool-btn-area {
    text-align: center;
    margin-top: 25px;
}

.tool-btn {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border: none;
    padding: 14px 35px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: 'Poppins', sans-serif;
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.2);
    position: relative;
    overflow: hidden;
}

.tool-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: 0.5s;
}

.tool-btn:hover::before {
    left: 100%;
}

.tool-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(52, 152, 219, 0.3);
}

.tool-btn:active {
    transform: translateY(-1px);
}

.tool-btn:disabled {
    background: linear-gradient(135deg, #95a5a6, #7f8c8d);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.tool-btn:disabled::before {
    display: none;
}

.tool-btn.secondary {
    background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
}

.tool-btn.danger {
    background: linear-gradient(135deg, var(--danger), var(--danger-dark));
}

.tool-btn.warning {
    background: linear-gradient(135deg, var(--warning), var(--warning-dark));
}

/* Drop Zone */
.drop-zone {
    border: 2px dashed #ccc;
    border-radius: 8px;
    padding: 30px 20px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: #fafafa;
    margin-bottom: 20px;
}

.drop-zone:hover,
.drop-zone.dragover {
    border-color: var(--primary);
    background: #f0f7ff;
}

.drop-zone .icon {
    font-size: 2.5em;
    margin-bottom: 15px;
    display: block;
    color: var(--primary);
}

.drop-zone p {
    color: var(--gray);
    margin: 10px 0;
    font-size: 1.1em;
}

.drop-zone small {
    color: var(--gray);
    font-size: 0.9em;
}

/* File Preview */
.file-preview {
    margin-top: 15px;
}

.preview-box {
    display: flex;
    align-items: center;
    gap: 12px;
    background: #f0f7ff;
    padding: 12px 15px;
    border-radius: 8px;
    border: 1px solid #d1e7ff;
    margin-bottom: 10px;
    animation: slideIn 0.3s ease-out;
}

.preview-box .file-icon {
    font-size: 1.2em;
    color: var(--primary);
}

.preview-box .file-name {
    flex: 1;
    color: var(--dark);
    font-weight: 500;
    word-break: break-all;
}

.preview-box .file-size {
    color: var(--gray);
    font-size: 0.85em;
    margin-right: 10px;
}

.preview-box .file-remove {
    background: none;
    border: none;
    color: var(--danger);
    cursor: pointer;
    font-size: 1.2em;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.preview-box .file-remove:hover {
    background: rgba(231, 76, 60, 0.1);
}

/* Tool Result */
.tool-result {
    background: white;
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(0,0,0,0.05);
    animation: slideUp 0.4s ease-out;
    display: none;
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    padding-bottom: 20px;
    border-bottom: 2px solid #f0f2f5;
}

.result-header h3 {
    color: var(--dark);
    margin: 0;
    font-size: 1.5em;
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* File List */
.file-list {
    margin-top: 20px;
}

.file-item {
    display: flex;
    align-items: center;
    padding: 15px;
    background: white;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    margin-bottom: 10px;
    transition: var(--transition);
}

.file-item:hover {
    transform: translateX(5px);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.file-item-icon {
    font-size: 1.5em;
    color: var(--primary);
    margin-right: 15px;
}

.file-item-info {
    flex: 1;
}

.file-item-name {
    font-weight: 500;
    color: var(--dark);
    margin-bottom: 3px;
}

.file-item-size {
    color: var(--gray);
    font-size: 0.85em;
}

.file-item-remove {
    background: none;
    border: none;
    color: var(--danger);
    cursor: pointer;
    padding: 5px;
    border-radius: 4px;
    transition: var(--transition);
}

.file-item-remove:hover {
    background: rgba(231, 76, 60, 0.1);
}

/* Progress Bar */
.progress-container {
    margin: 20px 0;
    display: none;
}

.progress-label {
    display: flex;
    justify-content: space-between;
    margin-bottom: 5px;
    color: var(--dark);
    font-weight: 500;
}

.progress-bar {
    height: 8px;
    background: #e0e0e0;
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 4px;
    transition: width 0.3s ease;
    width: 0%;
}

/* Format Options */
.format-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin: 20px 0;
}

.format-option {
    background: white;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    padding: 15px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.format-option:hover {
    border-color: var(--primary);
    background: #f0f7ff;
}

.format-option.selected {
    border-color: var(--primary);
    background: var(--primary);
    color: white;
}

.format-option .icon {
    font-size: 2em;
    margin-bottom: 10px;
    display: block;
}

.format-option span {
    font-weight: 500;
    font-size: 0.95em;
}

/* Alert System */
.alert {
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    animation: slideIn 0.3s ease-out;
    border-left: 4px solid;
}

.alert.error {
    background: #fee;
    border-color: #fcc;
    color: #c00;
}

.alert.success {
    background: #efc;
    border-color: #cfc;
    color: #080;
}

.alert.warning {
    background: #fff3cd;
    border-color: #ffeaa7;
    color: #856404;
}

.alert.info {
    background: #d1ecf1;
    border-color: #bee5eb;
    color: #0c5460;
}

.alert-close {
    background: none;
    border: none;
    color: inherit;
    cursor: pointer;
    font-size: 20px;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.alert-close:hover {
    opacity: 1;
}

/* Image Grid */
.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.image-card {
    background: var(--light-gray);
    border-radius: 10px;
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid #e9ecef;
}

.image-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.image-container {
    height: 200px;
    overflow: hidden;
    background: var(--light);
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-container img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    padding: 15px;
}

.image-info {
    padding: 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: white;
    border-top: 1px solid #e9ecef;
}

.image-info span {
    color: var(--dark);
    font-weight: 600;
    font-size: 1em;
}

.download-btn {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    font-size: 0.9em;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.2);
}

/* Settings Panel */
.settings-panel {
    background: var(--light-gray);
    border-radius: 8px;
    padding: 20px;
    margin-top: 20px;
    border: 1px solid #e9ecef;
}

.settings-group {
    margin-bottom: 20px;
}

.settings-group h4 {
    color: var(--dark);
    margin-bottom: 12px;
    font-family: 'Poppins', sans-serif;
    font-size: 1.1em;
}

.setting-option {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
}

.setting-option input[type="checkbox"],
.setting-option input[type="radio"] {
    margin-right: 10px;
}

.setting-option label {
    color: var(--dark);
    cursor: pointer;
    font-size: 0.95em;
}

/* Spinner */
.spinner {
    width: 18px;
    height: 18px;
    border: 3px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(-10px); }
    to { opacity: 1; transform: translateX(0); }
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .converter-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    .tool-container {
        padding: 15px;
    }
    
    .tool-header {
        padding: 30px 15px;
    }
    
    .tool-header h1 {
        font-size: 2.2em;
    }
    
    .tool-header p {
        font-size: 1.1em;
    }
    
    .tool-box {
        padding: 25px;
    }
    
    .result-header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .converter-grid {
        grid-template-columns: 1fr;
    }
    
    .tool-inputs {
        grid-template-columns: 1fr;
    }
    
    .tool-btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .tool-header {
        padding: 25px 15px;
    }
    
    .tool-header h1 {
        font-size: 1.8em;
    }
    
    .tool-header p {
        font-size: 1em;
    }
    
    .converter-card {
        padding: 20px;
    }
    
    .format-options {
        grid-template-columns: 1fr;
    }
}