/**
 * Transposition Cipher Tool Styles
 * File: assets/css/transposition-tool.css
 * NO inline styles - CSP compliant
 */

/* =====================================================
   TOOL CONTAINER
   ===================================================== */

.tool-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 100px 20px 40px;
    position: relative;
    z-index: 10;
}

/* =====================================================
   HEADER
   ===================================================== */

.tool-header {
    text-align: center;
    margin-bottom: 40px;
    padding: 30px;
    background: rgba(0, 0, 0, 0.8);
    border: 2px solid #0f0;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 255, 0, 0.3);
}

.tool-header h1 {
    font-size: 48px;
    color: #0f0;
    text-shadow: 0 0 10px #0f0;
    margin: 0 0 10px 0;
}

.tool-subtitle {
    color: #0ff;
    font-size: 18px;
    margin: 10px 0 20px 0;
}

.breadcrumb {
    color: #666;
    font-size: 14px;
    margin-top: 15px;
}

.breadcrumb a {
    color: #0f0;
    text-decoration: none;
    transition: all 0.3s ease;
}

.breadcrumb a:hover {
    color: #0ff;
    text-shadow: 0 0 5px #0ff;
}

/* =====================================================
   CIPHER TYPE SELECTOR
   ===================================================== */

.cipher-selector {
    background: rgba(0, 0, 0, 0.8);
    border: 2px solid #0ff;
    border-radius: 10px;
    padding: 30px;
    margin-bottom: 30px;
}

.cipher-selector h2 {
    color: #0ff;
    font-size: 24px;
    margin: 0 0 20px 0;
    text-align: center;
}

.cipher-types {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    max-width: 800px;
    margin: 0 auto;
}

.cipher-type-btn {
    background: rgba(0, 255, 255, 0.1);
    border: 2px solid #0ff;
    border-radius: 10px;
    padding: 25px 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.cipher-type-btn:hover {
    background: rgba(0, 255, 255, 0.2);
    border-color: #0f0;
    transform: translateY(-3px);
    box-shadow: 0 5px 20px rgba(0, 255, 255, 0.4);
}

.cipher-type-btn.active {
    background: rgba(0, 255, 0, 0.2);
    border-color: #0f0;
    box-shadow: 0 0 20px rgba(0, 255, 0, 0.5);
}

.cipher-icon {
    font-size: 48px;
}

.cipher-name {
    color: #0ff;
    font-size: 18px;
    font-weight: bold;
}

.cipher-type-btn.active .cipher-name {
    color: #0f0;
}

/* =====================================================
   CONFIGURATION SECTIONS
   ===================================================== */

.cipher-config {
    background: rgba(0, 0, 0, 0.8);
    border: 2px solid #0f0;
    border-radius: 10px;
    padding: 30px;
    margin-bottom: 30px;
}

.cipher-config.hidden {
    display: none;
}

/* Hide/Show for columnar option sections */
#simple-columnar-options.hidden,
#keyed-columnar-options.hidden {
    display: none !important;
}

#simple-columnar-options,
#keyed-columnar-options {
    display: block;
}


.cipher-config h2 {
    color: #0f0;
    font-size: 24px;
    margin: 0 0 25px 0;
    text-align: center;
}

.config-group {
    margin-bottom: 25px;
}

.config-group label {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #0ff;
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 10px;
}

.label-icon {
    font-size: 20px;
}

.help-text {
    display: block;
    color: #888;
    font-size: 13px;
    margin-top: 8px;
    line-height: 1.4;
}

/* Rail Fence Controls */
.rail-input-group,
.column-input-group {
    display: flex;
    align-items: center;
    gap: 15px;
    max-width: 300px;
}

.rail-btn,
.column-btn {
    background: rgba(0, 255, 0, 0.2);
    border: 2px solid #0f0;
    color: #0f0;
    font-size: 24px;
    font-weight: bold;
    width: 50px;
    height: 50px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.rail-btn:hover,
.column-btn:hover {
    background: rgba(0, 255, 0, 0.4);
    box-shadow: 0 0 15px rgba(0, 255, 0, 0.5);
    transform: scale(1.05);
}

.rail-input,
.column-input {
    flex: 1;
    background: rgba(0, 0, 0, 0.9);
    border: 2px solid #0f0;
    color: #0f0;
    font-size: 32px;
    font-weight: bold;
    text-align: center;
    padding: 10px;
    border-radius: 8px;
}

/* Columnar Type Select */
.config-select {
    width: 100%;
    max-width: 400px;
    background: rgba(0, 0, 0, 0.9);
    border: 2px solid #0f0;
    color: #0f0;
    font-size: 16px;
    padding: 12px;
    border-radius: 8px;
    cursor: pointer;
}

.config-select option {
    background: #000;
    color: #0f0;
}

/* Keyword Input */
.keyword-input {
    width: 100%;
    max-width: 500px;
    background: rgba(0, 0, 0, 0.9);
    border: 2px solid #0f0;
    color: #0f0;
    font-size: 18px;
    padding: 12px;
    border-radius: 8px;
    text-transform: uppercase;
}

.keyword-input::placeholder {
    color: #666;
}

/* Visual Previews */
.pattern-display,
.grid-display,
.keyword-order-display {
    background: rgba(0, 0, 0, 0.7);
    border: 2px solid #0ff;
    border-radius: 8px;
    padding: 20px;
    margin-top: 25px;
}

.pattern-display.hidden,
.grid-display.hidden,
.keyword-order-display.hidden {
    display: none;
}

.pattern-display h3,
.grid-display h3,
.keyword-order-display h4 {
    color: #0ff;
    font-size: 18px;
    margin: 0 0 15px 0;
}

.pattern-visual,
.grid-visual,
.order-visual {
    background: rgba(0, 0, 0, 0.9);
    border: 1px solid #0f0;
    border-radius: 5px;
    padding: 20px;
    font-family: 'Courier New', monospace;
    color: #0f0;
    font-size: 16px;
    line-height: 2;
    overflow-x: auto;
}

/* =====================================================
   INPUT/OUTPUT SECTION
   ===================================================== */

.io-section {
    background: rgba(0, 0, 0, 0.8);
    border: 2px solid #0f0;
    border-radius: 10px;
    padding: 30px;
    margin-bottom: 30px;
}

.input-group,
.output-group {
    margin-bottom: 25px;
}

.input-group label,
.output-group label {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #0f0;
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 10px;
}

.input-group textarea,
.output-group textarea {
    width: 100%;
    background: rgba(0, 0, 0, 0.9);
    border: 2px solid #0f0;
    color: #0f0;
    font-family: 'Courier New', monospace;
    font-size: 16px;
    padding: 15px;
    border-radius: 8px;
    resize: vertical;
    line-height: 1.6;
}

.input-group textarea::placeholder {
    color: #666;
}

.output-group textarea {
    background: rgba(0, 0, 0, 0.95);
    border-color: #ffd700;
    color: #ffd700;
}

.char-count {
    display: block;
    color: #666;
    font-size: 13px;
    margin-top: 5px;
}

.char-count span {
    color: #0f0;
    font-weight: bold;
}

/* Action Buttons */
.action-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin: 25px 0;
}

.action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 15px 25px;
    font-size: 16px;
    font-weight: bold;
    border-radius: 8px;
    border: 2px solid;
    cursor: pointer;
    transition: all 0.3s ease;
}

.action-btn.primary {
    background: rgba(0, 255, 0, 0.2);
    border-color: #0f0;
    color: #0f0;
}

.action-btn.primary:hover {
    background: rgba(0, 255, 0, 0.4);
    box-shadow: 0 0 20px rgba(0, 255, 0, 0.5);
    transform: translateY(-2px);
}

.action-btn.secondary {
    background: rgba(0, 255, 255, 0.2);
    border-color: #0ff;
    color: #0ff;
}

.action-btn.secondary:hover {
    background: rgba(0, 255, 255, 0.4);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.5);
    transform: translateY(-2px);
}

.action-btn.tertiary {
    background: rgba(255, 215, 0, 0.2);
    border-color: #ffd700;
    color: #ffd700;
}

.action-btn.tertiary:hover {
    background: rgba(255, 215, 0, 0.4);
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
    transform: translateY(-2px);
}

.action-btn.quaternary {
    background: rgba(255, 0, 0, 0.2);
    border-color: #f00;
    color: #f00;
}

.action-btn.quaternary:hover {
    background: rgba(255, 0, 0, 0.4);
    box-shadow: 0 0 20px rgba(255, 0, 0, 0.5);
    transform: translateY(-2px);
}

.btn-icon {
    font-size: 20px;
}

/* Output Actions */
.output-actions {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-top: 10px;
}

.copy-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 255, 255, 0.2);
    border: 2px solid #0ff;
    color: #0ff;
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
}

.copy-btn:hover {
    background: rgba(0, 255, 255, 0.4);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.5);
}

.copy-feedback {
    color: #0f0;
    font-size: 14px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.copy-feedback.show {
    opacity: 1;
}

/* =====================================================
   EDUCATIONAL CONTENT
   ===================================================== */

.educational-content {
    background: rgba(0, 0, 0, 0.8);
    border: 2px solid #0ff;
    border-radius: 10px;
    padding: 40px;
    margin-bottom: 30px;
}

.educational-content h2 {
    color: #0ff;
    font-size: 32px;
    margin: 0 0 30px 0;
    text-align: center;
}

.educational-content h3 {
    color: #0f0;
    font-size: 24px;
    margin: 30px 0 15px 0;
}

.educational-content h4 {
    color: #ffd700;
    font-size: 18px;
    margin: 20px 0 10px 0;
}

.educational-content p {
    color: #fff;
    line-height: 1.8;
    margin-bottom: 15px;
}

.info-card {
    background: rgba(0, 255, 255, 0.1);
    border: 2px solid #0ff;
    border-radius: 8px;
    padding: 25px;
    margin-bottom: 25px;
}

.cipher-explanation {
    margin-bottom: 30px;
}

.example-box {
    background: rgba(0, 0, 0, 0.7);
    border: 2px solid #0f0;
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
}

.example-box p {
    margin: 10px 0;
}

.cipher-demo {
    background: rgba(0, 0, 0, 0.9);
    border: 1px solid #0f0;
    border-radius: 5px;
    padding: 15px;
    color: #0f0;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.8;
    overflow-x: auto;
    margin: 15px 0;
}

.features-list {
    margin: 20px 0;
}

.features-list ul {
    list-style: none;
    padding: 0;
}

.features-list li {
    color: #fff;
    padding: 8px 0;
    border-bottom: 1px solid rgba(0, 255, 0, 0.2);
}

/* =====================================================
   SECURITY INFO
   ===================================================== */

.security-info {
    background: rgba(0, 0, 0, 0.8);
    border: 2px solid #ffd700;
    border-radius: 10px;
    padding: 40px;
    margin-bottom: 30px;
}

.security-info h2 {
    color: #ffd700;
    font-size: 32px;
    margin: 0 0 30px 0;
    text-align: center;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.info-grid .info-card {
    background: rgba(255, 215, 0, 0.1);
    border-color: #ffd700;
}

.info-grid h3 {
    color: #ffd700;
    font-size: 20px;
    margin: 0 0 15px 0;
}

.info-grid ul {
    list-style: none;
    padding: 0;
}

.info-grid li {
    color: #fff;
    padding: 5px 0;
}

/* =====================================================
   FAQ SECTION
   ===================================================== */

.faq-section {
    background: rgba(0, 0, 0, 0.8);
    border: 2px solid #0f0;
    border-radius: 10px;
    padding: 40px;
    margin-bottom: 30px;
}

.faq-section h2 {
    color: #0f0;
    font-size: 32px;
    margin: 0 0 30px 0;
    text-align: center;
}

.faq-item {
    background: rgba(0, 255, 0, 0.05);
    border: 1px solid rgba(0, 255, 0, 0.3);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
}

.faq-item h3 {
    color: #0ff;
    font-size: 18px;
    margin: 0 0 12px 0;
}

.faq-item p {
    color: #fff;
    line-height: 1.7;
    margin: 0;
}

/* =====================================================
   FOOTER
   ===================================================== */

.tool-footer {
    text-align: center;
    padding: 30px;
    background: rgba(0, 0, 0, 0.8);
    border: 2px solid #0f0;
    border-radius: 10px;
    color: #0f0;
}

.tool-footer p {
    margin: 10px 0;
    font-size: 14px;
}

.tool-footer code {
    background: rgba(0, 255, 0, 0.2);
    padding: 2px 8px;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
}

.tool-footer a {
    color: #0ff;
    text-decoration: none;
    transition: all 0.3s ease;
}

.tool-footer a:hover {
    color: #0f0;
    text-shadow: 0 0 5px #0f0;
}

/* =====================================================
   RESPONSIVE DESIGN
   ===================================================== */

@media (max-width: 768px) {
    .tool-container {
        padding: 80px 15px 30px;
    }
    
    .tool-header h1 {
        font-size: 32px;
    }
    
    .tool-subtitle {
        font-size: 16px;
    }
    
    .cipher-types {
        grid-template-columns: 1fr;
    }
    
    .action-buttons {
        grid-template-columns: 1fr;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .rail-input-group,
    .column-input-group {
        max-width: 100%;
    }
}

/* =====================================================
   ADDITIONAL STYLES FOR KEYWORD INFO DISPLAY
   Added for enhanced UX clarity
   ===================================================== */

/* Mode Notice */
.mode-notice {
    background: rgba(0, 255, 255, 0.1);
    border: 2px solid #0ff;
    padding: 15px;
    margin: 15px 0;
    border-radius: 8px;
    display: none;
}

.mode-notice.show {
    display: block;
}

.mode-notice h4 {
    color: #0ff;
    margin: 0 0 10px 0;
    font-size: 1.1em;
}

.mode-notice p {
    color: #00cc00;
    margin: 8px 0;
    line-height: 1.6;
}

.mode-notice ul {
    color: #00cc00;
    margin: 10px 0;
    padding-left: 25px;
}

.mode-notice li {
    margin: 5px 0;
}

/* Keyword Info Display */
.keyword-info {
    background: rgba(255, 215, 0, 0.1);
    border: 2px solid #ffd700;
    border-radius: 8px;
    padding: 15px;
    margin: 15px 0;
}

.keyword-info.hidden {
    display: none;
}

.info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 215, 0, 0.2);
}

.info-row:last-child {
    border-bottom: none;
}

.info-label {
    color: #00ff00;
    font-weight: 600;
    font-size: 0.95em;
}

.info-value {
    color: #ffd700;
    font-weight: 700;
    font-size: 1.1em;
    font-family: 'Courier New', monospace;
}

/* Enhanced help text styling */
.help-text strong {
    color: #ffd700;
}

/* Mobile responsive additions */
@media (max-width: 768px) {
    .mode-notice {
        padding: 12px;
        font-size: 0.9em;
    }
    
    .keyword-info {
        padding: 12px;
    }
    
    .info-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
}