/* Editpad Advanced Paraphrasing Tool CSS */

:root {
    --primary-color: #17a2b8;
    --primary-dark: #117a8b;
    --primary-light: #5dade2;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --light-bg: #f8f9fa;
    --border-color: #dee2e6;
    --text-dark: #212529;
    --text-light: #6c757d;
}

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

.editpad-adv-container {
    max-width: 1000px;
    margin: 30px auto;
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* Language Selector */
.editpad-language-selector {
    padding: 15px 20px;
    background: var(--light-bg);
    border-bottom: 2px solid var(--border-color);
}

.language-select {
    padding: 8px 12px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    font-size: 16px;
    cursor: pointer;
    background: white;
    color: var(--text-dark);
    transition: border-color 0.3s;
}

.language-select:hover {
    border-color: var(--primary-color);
}

.language-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(23, 162, 184, 0.1);
}

/* Tabs */
.editpad-tabs-container {
    overflow-x: auto;
    background: white;
    border-bottom: 2px solid var(--border-color);
    scroll-behavior: smooth;
}

.editpad-tabs {
    display: flex;
    gap: 5px;
    padding: 0 20px;
    min-width: min-content;
    -webkit-overflow-scrolling: touch;
}

.tab-btn {
    padding: 12px 18px;
    border: none;
    background: transparent;
    color: var(--text-light);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    white-space: nowrap;
    transition: all 0.3s ease;
    position: relative;
}

.tab-btn:hover {
    color: var(--primary-color);
    background: rgba(23, 162, 184, 0.05);
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    font-weight: 600;
}

/* Input Area */
.editpad-input-area {
    padding: 25px 20px;
    background: white;
}

.editpad-textarea {
    width: 100%;
    min-height: 220px;
    padding: 15px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 16px;
    font-family: inherit;
    resize: vertical;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.editpad-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(23, 162, 184, 0.1);
}

.editpad-textarea::placeholder {
    color: var(--text-light);
}

.editpad-char-count {
    margin-top: 10px;
    font-size: 12px;
    color: var(--text-light);
    text-align: right;
}

/* Buttons */
.editpad-buttons {
    display: flex;
    gap: 12px;
    padding: 15px 20px;
    background: var(--light-bg);
    flex-wrap: wrap;
}

button {
    padding: 11px 20px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-sample {
    background: white;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-sample:hover {
    background: rgba(23, 162, 184, 0.05);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(23, 162, 184, 0.2);
}

.btn-paste {
    background: white;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-paste:hover {
    background: rgba(23, 162, 184, 0.05);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(23, 162, 184, 0.2);
}

.btn-paraphrase {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    flex: 1;
    min-width: 150px;
}

.btn-paraphrase:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(23, 162, 184, 0.3);
}

.btn-paraphrase:active {
    transform: translateY(0);
}

.btn-clear {
    background: white;
    color: var(--danger-color);
    border: 2px solid var(--danger-color);
}

.btn-clear:hover {
    background: rgba(220, 53, 69, 0.05);
    transform: translateY(-2px);
}

/* Loading Spinner */
.editpad-loading {
    padding: 40px 20px;
    text-align: center;
    background: var(--light-bg);
}

.spinner {
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.editpad-loading p {
    color: var(--text-light);
    margin-top: 15px;
}

/* Output Area */
.editpad-output {
    padding: 25px 20px;
    background: var(--light-bg);
    border-top: 2px solid var(--border-color);
}

.output-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.output-header h3 {
    font-size: 18px;
    color: var(--text-dark);
    margin: 0;
}

.btn-copy-all {
    background: var(--success-color);
    color: white;
    padding: 10px 16px;
    font-size: 13px;
}

.btn-copy-all:hover {
    background: #218838;
    transform: translateY(-2px);
}

.output-content {
    display: grid;
    gap: 15px;
}

.result-box {
    background: white;
    padding: 15px;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.result-style {
    font-size: 12px;
    font-weight: 700;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 10px;
}

.result-textarea {
    width: 100%;
    min-height: 100px;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 15px;
    font-family: inherit;
    resize: none;
    background: var(--light-bg);
    color: var(--text-dark);
}

.result-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.btn-copy-result {
    background: var(--success-color);
    color: white;
    margin-top: 10px;
    padding: 9px 16px;
    font-size: 13px;
}

.btn-copy-result:hover {
    background: #218838;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(40, 167, 69, 0.2);
}

/* Features */
.editpad-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    padding: 30px 20px;
    background: white;
    border-top: 2px solid var(--border-color);
}

.feature-box {
    padding: 20px;
    background: var(--light-bg);
    border-radius: 8px;
    text-align: center;
    transition: all 0.3s ease;
}

.feature-box:hover {
    background: rgba(23, 162, 184, 0.05);
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.feature-box h4 {
    font-size: 16px;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.feature-box p {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.6;
    margin: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .editpad-tabs {
        padding: 0 10px;
    }

    .tab-btn {
        padding: 10px 12px;
        font-size: 13px;
    }

    .editpad-buttons {
        flex-direction: column;
    }

    .btn-paraphrase {
        width: 100%;
    }

    .btn-sample, .btn-paste, .btn-clear {
        width: 100%;
    }

    .editpad-input-area {
        padding: 15px;
    }

    .editpad-textarea {
        min-height: 180px;
        padding: 12px;
    }

    .output-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .btn-copy-all {
        width: 100%;
    }

    .editpad-features {
        grid-template-columns: 1fr;
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .editpad-adv-container {
        border-radius: 8px;
        margin: 15px;
    }

    .tab-btn {
        padding: 8px 10px;
        font-size: 12px;
    }

    button {
        padding: 10px 15px;
        font-size: 13px;
    }

    .editpad-input-area,
    .editpad-buttons {
        padding: 12px;
    }
}

/* Scrollbar Styling */
.editpad-tabs::-webkit-scrollbar {
    height: 4px;
}

.editpad-tabs::-webkit-scrollbar-track {
    background: var(--light-bg);
}

.editpad-tabs::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 2px;
}

.editpad-tabs::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* Accessibility */
button:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.tab-btn:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: -2px;
}

/* Print Styles */
@media print {
    .editpad-buttons,
    .editpad-loading,
    .output-header {
        display: none;
    }

    .result-textarea {
        border: 1px solid #000;
        page-break-inside: avoid;
    }
}