/**
 * Blockchain Steganography CSS
 * Styling for hidden message encoding and decoding
 */

.visualizer-container {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    box-sizing: border-box;
    width: 100%;
    overflow-x: hidden;
}

.tool-header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px;
    background: rgba(0, 20, 40, 0.95);
    border: 1px solid #ff6b6b;
    border-radius: 8px;
    backdrop-filter: blur(10px);
    box-sizing: border-box;
    width: 100%;
}

.tool-header h1 {
    color: #ff6b6b;
    font-size: 2em;
    margin-bottom: 10px;
    text-shadow: 0 0 10px rgba(255, 107, 107, 0.5);
}

.tool-header p {
    color: #00ff88;
    font-size: 1.1em;
}

.breadcrumb {
    margin: 20px 0;
    padding: 10px;
    color: #00ff88;
    font-size: 0.9em;
    box-sizing: border-box;
    width: 100%;
}

.breadcrumb a {
    color: #00ffff;
    text-decoration: none;
}

.instructions {
    background: rgba(0, 20, 40, 0.95);
    border-left: 3px solid #ff6b6b;
    padding: 15px;
    margin: 20px 0;
    backdrop-filter: blur(10px);
    box-sizing: border-box;
    width: 100%;
}

.instructions h4 {
    color: #ff6b6b;
    margin-bottom: 10px;
}

.instructions ol {
    color: #ffffff;
    padding-left: 25px;
}

/* Main Controls */
.steg-controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin: 20px 0;
    box-sizing: border-box;
}

.control-panel {
    background: rgba(0, 20, 40, 0.95);
    border: 1px solid #ff6b6b;
    border-radius: 8px;
    padding: 20px;
    backdrop-filter: blur(10px);
    box-sizing: border-box;
}

.control-panel h3 {
    color: #ff6b6b;
    margin-bottom: 15px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    color: #00ffff;
    font-size: 0.9em;
    margin-bottom: 5px;
    font-weight: bold;
}

.form-group select,
.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px;
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid #ff6b6b;
    border-radius: 4px;
    color: #ffffff;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
    box-sizing: border-box;
}

.form-group textarea {
    min-height: 100px;
    resize: vertical;
}

.form-group select:focus,
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #00ff88;
    box-shadow: 0 0 10px rgba(0, 255, 136, 0.3);
}

.form-button {
    width: 100%;
    padding: 10px;
    background: rgba(255, 107, 107, 0.2);
    border: 1px solid #ff6b6b;
    border-radius: 4px;
    color: #ff6b6b;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

.form-button:hover {
    background: rgba(255, 107, 107, 0.4);
    box-shadow: 0 0 15px rgba(255, 107, 107, 0.5);
}

.export-button-group {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
    flex-wrap: wrap;
}

.blockchain-btn.secondary {
    background: rgba(0, 255, 136, 0.15);
    border: 1px solid #00ff88;
    color: #00ff88;
    padding: 8px 15px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
    font-size: 0.9em;
}

.blockchain-btn.secondary:hover {
    background: rgba(0, 255, 136, 0.3);
    box-shadow: 0 0 10px rgba(0, 255, 136, 0.3);
}

/* Block Display */
.block-display,
.decoded-display {
    background: rgba(0, 20, 40, 0.95);
    border: 1px solid #ff6b6b;
    border-radius: 8px;
    padding: 20px;
    backdrop-filter: blur(10px);
    box-sizing: border-box;
    margin: 20px 0;
}

.block-header {
    display: flex;
    gap: 15px;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.block-number,
.block-hash {
    background: rgba(255, 107, 107, 0.1);
    border: 1px solid #ff6b6b;
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 0.85em;
    color: #ff6b6b;
    font-weight: bold;
    font-family: 'Courier New', monospace;
}

.block-comparison {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 15px;
    align-items: center;
    margin: 20px 0;
    box-sizing: border-box;
}

.comparison-item h4 {
    color: #00ffff;
    margin-bottom: 10px;
}

.message-box {
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 107, 107, 0.3);
    padding: 15px;
    border-radius: 4px;
    min-height: 60px;
    word-break: break-all;
    font-family: 'Courier New', monospace;
    font-size: 0.85em;
    line-height: 1.5;
    box-sizing: border-box;
}

.message-box.original {
    color: #00ff88;
    border-color: rgba(0, 255, 136, 0.3);
}

.message-box.encoded {
    color: #ff6b6b;
    border-color: rgba(255, 107, 107, 0.3);
}

.comparison-arrow {
    font-size: 1.5em;
    color: #00ffff;
    text-align: center;
}

.block-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 12px;
    margin: 20px 0;
}

.detail-row {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 107, 107, 0.2);
    padding: 10px;
    border-radius: 4px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-sizing: border-box;
}

.detail-label {
    color: #00ffff;
    font-weight: bold;
    font-size: 0.85em;
}

.detail-value {
    color: #ff6b6b;
    font-family: 'Courier New', monospace;
    font-size: 0.85em;
    word-break: break-all;
}

/* Blockchain Info */
#blockchain-info {
    background: rgba(0, 20, 40, 0.95);
    border: 1px solid #00ffff;
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
    backdrop-filter: blur(10px);
    box-sizing: border-box;
    width: 100%;
}

.blockchain-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

.stat-item {
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid #00ff88;
    padding: 12px;
    border-radius: 4px;
    text-align: center;
    box-sizing: border-box;
}

.stat-label {
    display: block;
    color: #00ffff;
    font-size: 0.85em;
    margin-bottom: 5px;
}

.stat-value {
    display: block;
    color: #00ff88;
    font-weight: bold;
    font-family: 'Courier New', monospace;
    font-size: 1.2em;
}

.blocks-timeline {
    border-top: 1px solid rgba(0, 255, 255, 0.2);
    padding-top: 20px;
}

.blocks-timeline h4 {
    color: #00ffff;
    margin-bottom: 15px;
}

.timeline-item {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.timeline-block {
    background: rgba(0, 255, 136, 0.15);
    border: 1px solid #00ff88;
    padding: 8px 12px;
    border-radius: 4px;
    display: flex;
    gap: 10px;
    align-items: center;
}

.timeline-number {
    color: #00ff88;
    font-weight: bold;
    font-family: 'Courier New', monospace;
}

.timeline-method {
    background: rgba(157, 78, 221, 0.2);
    border: 1px solid #9d4edd;
    padding: 2px 8px;
    border-radius: 3px;
    color: #9d4edd;
    font-size: 0.75em;
    font-weight: bold;
}

.timeline-arrow {
    color: #00ffff;
    font-size: 1.2em;
}

/* Block Selector for Decoding */
.block-selector {
    background: rgba(0, 20, 40, 0.95);
    border: 1px solid #9d4edd;
    border-radius: 8px;
    padding: 20px;
    backdrop-filter: blur(10px);
    box-sizing: border-box;
}

.block-selector h4 {
    color: #9d4edd;
    margin-bottom: 15px;
}

.blocks-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
}

.block-card {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(157, 78, 221, 0.3);
    border-radius: 6px;
    padding: 12px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.block-card:hover {
    background: rgba(157, 78, 221, 0.1);
    border-color: #9d4edd;
}

.block-card-header {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-bottom: 8px;
    flex-wrap: wrap;
}

.block-label {
    color: #9d4edd;
    font-weight: bold;
    font-size: 0.9em;
}

.method-label {
    background: rgba(157, 78, 221, 0.2);
    border: 1px solid #9d4edd;
    padding: 2px 6px;
    border-radius: 3px;
    color: #9d4edd;
    font-size: 0.7em;
    font-weight: bold;
}

.block-card-preview {
    color: #ffffff;
    font-size: 0.8em;
    margin-bottom: 8px;
    word-break: break-all;
}

.blockchain-btn.small {
    width: 100%;
    padding: 6px;
    font-size: 0.8em;
}

/* Decoded Display */
.decoded-display {
    border-color: #00ff88;
}

.decode-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.decode-header h3 {
    color: #00ff88;
    margin: 0;
}

.method-badge {
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid #00ff88;
    padding: 4px 10px;
    border-radius: 3px;
    color: #00ff88;
    font-size: 0.75em;
    font-weight: bold;
}

.decode-info {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(0, 255, 136, 0.2);
    padding: 12px;
    border-radius: 4px;
    margin-bottom: 15px;
}

.info-row {
    color: #ffffff;
    margin-bottom: 8px;
    font-size: 0.85em;
}

.info-row code {
    background: rgba(0, 0, 0, 0.5);
    padding: 2px 6px;
    border-radius: 2px;
    color: #00ffff;
    font-family: 'Courier New', monospace;
    display: block;
    margin-top: 3px;
}

.decoded-message {
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid #00ff88;
    padding: 15px;
    border-radius: 4px;
    min-height: 60px;
    word-break: break-all;
    font-family: 'Courier New', monospace;
    color: #00ff88;
    font-size: 0.9em;
    line-height: 1.6;
    margin-bottom: 15px;
    box-sizing: border-box;
}

.decode-stats {
    display: flex;
    gap: 20px;
    color: #00ff88;
    font-size: 0.9em;
    flex-wrap: wrap;
}

.tx-header {
    display: flex;
    gap: 15px;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.tx-id,
.tx-method,
.tx-size {
    background: rgba(255, 107, 107, 0.1);
    border: 1px solid #ff6b6b;
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 0.85em;
    color: #ff6b6b;
    font-weight: bold;
}

.tx-method {
    background: rgba(0, 255, 136, 0.1);
    border-color: #00ff88;
    color: #00ff88;
}

.tx-comparison {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 15px;
    align-items: center;
    margin: 20px 0;
    box-sizing: border-box;
}

.comparison-item h4 {
    color: #00ffff;
    margin-bottom: 10px;
}

.message-box {
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 107, 107, 0.3);
    padding: 15px;
    border-radius: 4px;
    min-height: 60px;
    word-break: break-all;
    font-family: 'Courier New', monospace;
    font-size: 0.85em;
    line-height: 1.5;
    box-sizing: border-box;
}

.message-box.original {
    color: #00ff88;
    border-color: rgba(0, 255, 136, 0.3);
}

.message-box.encoded {
    color: #ff6b6b;
    border-color: rgba(255, 107, 107, 0.3);
}

.comparison-arrow {
    font-size: 1.5em;
    color: #00ffff;
    text-align: center;
}

.encoding-info {
    background: rgba(255, 107, 107, 0.1);
    border-left: 3px solid #ff6b6b;
    padding: 12px;
    margin: 15px 0;
    color: #ffffff;
    border-radius: 4px;
}

.tx-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 10px;
    margin: 15px 0;
}

.detail-row {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 107, 107, 0.2);
    padding: 10px;
    border-radius: 4px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-sizing: border-box;
}

.detail-label {
    color: #00ffff;
    font-weight: bold;
    font-size: 0.85em;
}

.detail-value {
    color: #ff6b6b;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
}

/* Decoded Output */
.decode-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.decode-header h3 {
    color: #00ff88;
    margin: 0;
}

.decode-method {
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid #00ff88;
    padding: 4px 10px;
    border-radius: 3px;
    color: #00ff88;
    font-size: 0.75em;
    font-weight: bold;
}

.decoded-message {
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid #00ff88;
    padding: 15px;
    border-radius: 4px;
    min-height: 60px;
    word-break: break-all;
    font-family: 'Courier New', monospace;
    color: #00ff88;
    font-size: 0.9em;
    line-height: 1.6;
    margin-bottom: 15px;
    box-sizing: border-box;
}

.decode-stats {
    display: flex;
    gap: 20px;
    color: #00ffff;
    font-size: 0.9em;
}

/* History */
#steg-history {
    background: rgba(0, 20, 40, 0.95);
    border: 1px solid #ffd700;
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
    backdrop-filter: blur(10px);
    box-sizing: border-box;
    width: 100%;
}

#steg-history h3 {
    color: #ffd700;
    margin-bottom: 15px;
}

.history-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.history-item {
    background: rgba(0, 0, 0, 0.3);
    border-left: 3px solid #ffd700;
    padding: 12px;
    border-radius: 4px;
    box-sizing: border-box;
}

.history-header {
    display: flex;
    gap: 15px;
    align-items: center;
    margin-bottom: 8px;
    flex-wrap: wrap;
}

.history-method {
    background: rgba(255, 107, 107, 0.2);
    border: 1px solid #ff6b6b;
    padding: 3px 8px;
    border-radius: 3px;
    color: #ff6b6b;
    font-size: 0.75em;
    font-weight: bold;
}

.history-time {
    color: #00ffff;
    font-size: 0.85em;
    opacity: 0.7;
}

.history-message,
.history-encoded {
    color: #ffffff;
    font-size: 0.85em;
    margin-top: 5px;
    font-family: 'Courier New', monospace;
}

.history-encoded {
    color: #ff6b6b;
}

.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: #00ffff;
    opacity: 0.6;
}

/* Educational Content */
.how-it-works {
    background: rgba(0, 20, 40, 0.95);
    border: 1px solid #00ffff;
    border-radius: 8px;
    padding: 20px;
    margin: 30px 0;
    backdrop-filter: blur(10px);
    box-sizing: border-box;
    width: 100%;
    overflow-x: auto;
}

.how-it-works h2 {
    color: #00ffff;
    margin-bottom: 15px;
}

.how-it-works p {
    color: #ffffff;
    line-height: 1.8;
    margin: 10px 0;
}

.how-it-works ul {
    color: #ffffff;
    padding-left: 25px;
}

.encoding-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin: 20px 0;
}

.method-card {
    background: rgba(0, 20, 40, 0.95);
    border: 1px solid #ff6b6b;
    border-radius: 8px;
    padding: 15px;
    backdrop-filter: blur(10px);
    box-sizing: border-box;
}

.method-card h4 {
    color: #ff6b6b;
    margin-bottom: 8px;
}

.method-card p {
    color: #ffffff;
    font-size: 0.85em;
    line-height: 1.5;
}

.method-card code {
    background: rgba(0, 0, 0, 0.5);
    padding: 2px 4px;
    border-radius: 2px;
    color: #00ff88;
    font-family: 'Courier New', monospace;
    font-size: 0.75em;
}

/* Responsive */
@media (max-width: 768px) {
    .visualizer-container {
        padding: 10px;
    }

    .tool-header h1 {
        font-size: 1.5em;
    }

    .steg-controls {
        grid-template-columns: 1fr;
    }

    .tx-comparison {
        grid-template-columns: 1fr;
    }

    .comparison-arrow {
        transform: rotate(90deg);
    }

    .tx-details {
        grid-template-columns: 1fr;
    }

    .encoding-methods {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .tool-header h1 {
        font-size: 1.2em;
    }

    .tx-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .history-header {
        flex-direction: column;
        align-items: flex-start;
    }
}