/* Base Styles */
:root {
    --primary: #6C63FF;
    --secondary: #4D44DB;
    --accent: #FF6584;
    --light: #F8F9FA;
    --dark: #212529;
    --gray: #6C757D;
    --success: #28A745;
    --warning: #FFC107;
    --danger: #DC3545;
    --info: #17A2B8;
}

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

body {
    font-family: 'Montserrat', sans-serif;
    background-color: #F5F7FF;
    color: var(--dark);
    line-height: 1.6;
}

/* Layout */
.page-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 2rem;
}

.rot13-container {
    width: 100%;
    max-width: 900px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    overflow: hidden;
}

.tool-header {
    padding: 2rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    text-align: center;
}

.title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.subtitle {
    font-size: 1rem;
    font-weight: 500;
    opacity: 0.9;
}

/* Text Areas */
.input-section {
    padding: 1.5rem;
}

.textarea-container {
    margin-bottom: 1.5rem;
}

.textarea-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.section-label {
    font-weight: 600;
    color: var(--dark);
    font-size: 0.95rem;
}

.text-controls {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.char-count {
    font-size: 0.8rem;
    color: var(--gray);
    margin-right: 0.5rem;
}

.text-input, .text-output {
    width: 100%;
    min-height: 150px;
    padding: 1rem;
    border: 2px solid #E9ECEF;
    border-radius: 8px;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.95rem;
    resize: vertical;
    transition: all 0.3s ease;
}

.text-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.2);
}

.text-output {
    background-color: #F8F9FA;
}

/* Buttons */
.action-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin: 1.5rem 0;
}

.action-btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.encode-btn {
    background-color: var(--primary);
    color: white;
}

.encode-btn:hover {
    background-color: var(--secondary);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(108, 99, 255, 0.2);
}

.decode-btn {
    background-color: var(--accent);
    color: white;
}

.decode-btn:hover {
    background-color: #FF4D6D;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(255, 101, 132, 0.2);
}

.icon-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: transparent;
    border: none;
    color: var(--gray);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.icon-btn:hover {
    background: #F1F3F5;
    color: var(--primary);
}

/* Tooltips */
.tooltip {
    position: relative;
}

.tooltip .tooltiptext {
    visibility: hidden;
    width: 120px;
    background-color: var(--dark);
    color: #fff;
    text-align: center;
    border-radius: 6px;
    padding: 5px;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    transition: opacity 0.3s;
    font-size: 0.75rem;
    font-weight: 500;
}

.tooltip .tooltiptext::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: var(--dark) transparent transparent transparent;
}

.tooltip:hover .tooltiptext {
    visibility: visible;
    opacity: 1;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal-content {
    background-color: white;
    margin: 10% auto;
    padding: 1.5rem;
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    position: relative;
}

.close-modal {
    position: absolute;
    right: 1.5rem;
    top: 1.25rem;
    font-size: 1.5rem;
    color: var(--gray);
    cursor: pointer;
    transition: color 0.2s;
}

.close-modal:hover {
    color: var(--dark);
}

.modal-content h3 {
    margin-bottom: 1rem;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.modal-content input[type="text"] {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid #E9ECEF;
    border-radius: 8px;
    font-family: 'Montserrat', sans-serif;
    margin-bottom: 1rem;
    transition: border 0.3s;
}

.modal-content input[type="text"]:focus {
    outline: none;
    border-color: var(--primary);
}

.modal-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
}

.modal-btn {
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.fetch-btn {
    background-color: var(--primary);
    color: white;
}

.fetch-btn:hover {
    background-color: var(--secondary);
}

.cancel-btn {
    background-color: #E9ECEF;
    color: var(--dark);
}

.cancel-btn:hover {
    background-color: #DEE2E6;
}

#urlStatus {
    margin-top: 1rem;
    padding: 0.75rem;
    border-radius: 6px;
    font-size: 0.9rem;
}

/* Info Section */
.info-section {
    padding: 1.5rem;
    background-color: #F8F9FA;
    border-top: 1px solid #E9ECEF;
}

.info-card {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    background: white;
    padding: 1.25rem;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.info-icon {
    width: 40px;
    height: 40px;
    background-color: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.info-content h3 {
    color: var(--primary);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.info-content p {
    color: var(--gray);
    font-size: 0.9rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.feature-card {
    background: white;
    padding: 1.25rem;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    text-align: center;
}

.feature-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    margin: 0 auto 0.75rem;
    font-size: 1.25rem;
}

.feature-card h4 {
    color: var(--dark);
    margin-bottom: 0.25rem;
    font-size: 0.95rem;
}

.feature-card p {
    color: var(--gray);
    font-size: 0.8rem;
}

/* Responsive */
@media (max-width: 768px) {
    .page-wrapper {
        padding: 1rem;
    }
    
    .action-buttons {
        flex-direction: column;
    }
    
    .features-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 480px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .textarea-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .text-controls {
        width: 100%;
        justify-content: space-between;
    }
}