/* MobaXterm Dark Theme CSS */
:root {
    /* MobaXterm Color Palette */
    --moba-bg-primary: #1e1e1e;
    --moba-bg-secondary: #2d2d30;
    --moba-bg-tertiary: #383838;
    --moba-accent-blue: #007acc;
    --moba-accent-cyan: #00d4aa;
    --moba-accent-orange: #ff8c00;
    --moba-text-primary: #cccccc;
    --moba-text-secondary: #969696;
    --moba-text-dim: #6a6a6a;
    --moba-border: #404040;
    --moba-border-hover: #505050;
    --moba-success: #4ec9b0;
    --moba-error: #f44747;
    --moba-warning: #ffcc02;
    --moba-terminal-green: #00ff00;
}

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

body {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    background: linear-gradient(135deg, var(--moba-bg-primary) 0%, #252526 50%, var(--moba-bg-secondary) 100%);
    background-attachment: fixed;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    color: var(--moba-text-primary);
}

.container {
    background: var(--moba-bg-secondary);
    border: 2px solid var(--moba-border);
    border-radius: 8px;
    padding: 40px;
    box-shadow: 
        0 0 30px rgba(0, 122, 204, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
    max-width: 650px;
    width: 100%;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, 
        var(--moba-accent-blue), 
        var(--moba-accent-cyan), 
        var(--moba-accent-orange),
        var(--moba-accent-blue)
    );
    background-size: 300% 100%;
    animation: terminalGlow 4s ease-in-out infinite;
}

@keyframes terminalGlow {
    0%, 100% { 
        background-position: 0% 50%;
        opacity: 0.8;
    }
    50% { 
        background-position: 100% 50%;
        opacity: 1;
    }
}

h1 {
    color: var(--moba-accent-cyan);
    margin-bottom: 10px;
    font-size: 2.8em;
    font-weight: 700;
    text-shadow: 
        0 0 10px rgba(0, 212, 170, 0.5),
        0 2px 4px rgba(0, 0, 0, 0.3);
    font-family: 'Consolas', monospace;
    letter-spacing: -1px;
}

.subtitle {
    color: var(--moba-text-secondary);
    margin-bottom: 35px;
    font-size: 1.1em;
    font-weight: 400;
}

.upload-area {
    border: 2px dashed var(--moba-border);
    border-radius: 8px;
    padding: 40px 20px;
    margin: 30px 0;
    background: 
        linear-gradient(135deg, 
            rgba(0, 122, 204, 0.03) 0%, 
            rgba(0, 212, 170, 0.03) 100%
        );
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    backdrop-filter: blur(5px);
}

.upload-area:hover {
    border-color: var(--moba-accent-blue);
    background: 
        linear-gradient(135deg, 
            rgba(0, 122, 204, 0.08) 0%, 
            rgba(0, 212, 170, 0.08) 100%
        );
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 122, 204, 0.15);
}

.upload-area.dragover {
    border-color: var(--moba-success);
    background: rgba(78, 201, 176, 0.1);
    box-shadow: 
        0 0 20px rgba(78, 201, 176, 0.3),
        inset 0 0 20px rgba(78, 201, 176, 0.1);
}

.upload-icon {
    font-size: 3.5em;
    color: var(--moba-accent-blue);
    margin-bottom: 15px;
    filter: drop-shadow(0 0 10px rgba(0, 122, 204, 0.3));
}

.upload-text {
    font-size: 1.3em;
    color: var(--moba-text-primary);
    margin-bottom: 10px;
    font-weight: 600;
}

.upload-subtext {
    color: var(--moba-text-dim);
    font-size: 0.95em;
}

input[type="file"] {
    display: none;
}

.btn {
    background: linear-gradient(135deg, 
        var(--moba-accent-blue) 0%, 
        var(--moba-accent-cyan) 100%
    );
    color: #ffffff;
    border: 1px solid var(--moba-accent-blue);
    padding: 15px 30px;
    border-radius: 6px;
    font-size: 1.1em;
    font-weight: 600;
    font-family: 'Consolas', monospace;
    cursor: pointer;
    transition: all 0.3s ease;
    margin: 10px;
    box-shadow: 
        0 4px 15px rgba(0, 122, 204, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 
        0 8px 25px rgba(0, 122, 204, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    background: linear-gradient(135deg, 
        #0088ff 0%, 
        var(--moba-accent-cyan) 100%
    );
}

.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
    background: var(--moba-bg-tertiary);
    border-color: var(--moba-border);
    box-shadow: none;
}

.progress-container {
    display: none;
    margin: 25px 0;
    padding: 0 10px;
}

.progress-bar {
    width: 100%;
    height: 6px;
    background: var(--moba-bg-tertiary);
    border: 1px solid var(--moba-border);
    border-radius: 3px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, 
        var(--moba-accent-blue), 
        var(--moba-accent-cyan)
    );
    width: 0%;
    transition: width 0.4s ease;
    position: relative;
    overflow: hidden;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.3) 50%,
        transparent 100%
    );
    animation: progressShine 2s ease-in-out infinite;
}

@keyframes progressShine {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.status {
    margin: 25px 0;
    padding: 15px 20px;
    border-radius: 6px;
    font-weight: 500;
    font-family: 'Consolas', monospace;
    display: none;
    border-left: 4px solid;
}

.status.success {
    background: rgba(78, 201, 176, 0.1);
    color: var(--moba-success);
    border-color: var(--moba-success);
    border-left-color: var(--moba-success);
    box-shadow: 0 0 10px rgba(78, 201, 176, 0.2);
}

.status.error {
    background: rgba(244, 71, 71, 0.1);
    color: var(--moba-error);
    border-color: var(--moba-error);
    border-left-color: var(--moba-error);
    box-shadow: 0 0 10px rgba(244, 71, 71, 0.2);
}

.file-info {
    background: rgba(0, 122, 204, 0.08);
    border: 1px solid rgba(0, 122, 204, 0.3);
    border-left: 4px solid var(--moba-accent-blue);
    padding: 18px;
    border-radius: 6px;
    margin: 25px 0;
    display: none;
    text-align: left;
    font-family: 'Consolas', monospace;
    font-size: 0.95em;
}

.encryption-section {
    background: var(--moba-bg-tertiary);
    border: 1px solid var(--moba-border);
    border-radius: 8px;
    padding: 25px;
    margin: 25px 0;
    position: relative;
}

.encryption-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, 
        var(--moba-accent-orange), 
        var(--moba-warning)
    );
    border-radius: 8px 8px 0 0;
}

.encryption-section h3 {
    color: var(--moba-accent-orange);
    margin-bottom: 20px;
    font-size: 1.4em;
    font-family: 'Consolas', monospace;
    text-shadow: 0 0 8px rgba(255, 140, 0, 0.3);
}

.form-group {
    margin: 20px 0;
    text-align: left;
}

.form-group label {
    display: block;
    color: var(--moba-text-primary);
    font-weight: 600;
    margin-bottom: 8px;
    font-family: 'Consolas', monospace;
    font-size: 0.95em;
}

.form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--moba-border);
    border-radius: 6px;
    font-size: 1em;
    font-family: 'Consolas', monospace;
    background: var(--moba-bg-primary);
    color: var(--moba-text-primary);
    transition: all 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--moba-accent-blue);
    background: rgba(0, 122, 204, 0.05);
    box-shadow: 
        0 0 10px rgba(0, 122, 204, 0.3),
        inset 0 1px 3px rgba(0, 0, 0, 0.2);
}

.form-group input::placeholder {
    color: var(--moba-text-dim);
    font-style: italic;
}

.radio-group {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin: 20px 0;
}

.radio-option {
    background: rgba(0, 0, 0, 0.2);
    border: 2px solid var(--moba-border);
    border-radius: 8px;
    padding: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.radio-option:hover {
    border-color: var(--moba-accent-blue);
    background: rgba(0, 122, 204, 0.05);
}

.radio-option input[type="radio"] {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 20px;
    height: 20px;
    accent-color: var(--moba-accent-blue);
    cursor: pointer;
}

.radio-option input[type="radio"]:checked + label {
    color: var(--moba-accent-cyan);
}

.radio-option:has(input[type="radio"]:checked) {
    border-color: var(--moba-accent-cyan);
    background: rgba(0, 212, 170, 0.08);
    box-shadow: 0 0 15px rgba(0, 212, 170, 0.2);
}

.radio-option label {
    display: flex;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    margin: 0;
    padding-right: 40px;
}

.radio-title {
    font-size: 1.1em;
    font-weight: 600;
    color: var(--moba-text-primary);
}

.radio-desc {
    font-size: 0.9em;
    color: var(--moba-text-dim);
    font-weight: 400;
}

.input-help {
    display: block;
    color: var(--moba-text-dim);
    font-size: 0.85em;
    margin-top: 5px;
    font-style: italic;
}

/* Terminal-like scrollbar */
::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--moba-bg-primary);
    border-radius: 6px;
}

::-webkit-scrollbar-thumb {
    background: var(--moba-border);
    border-radius: 6px;
    border: 2px solid var(--moba-bg-primary);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--moba-border-hover);
}

/* Selection styling */
::selection {
    background: rgba(0, 122, 204, 0.3);
    color: var(--moba-text-primary);
}

/* Mobile responsiveness */
@media (max-width: 768px) {
    .container {
        padding: 25px 20px;
        margin: 10px;
        border-radius: 6px;
    }
    
    h1 {
        font-size: 2.2em;
    }
    
    .upload-area {
        padding: 30px 15px;
    }
    
    .btn {
        padding: 12px 25px;
        font-size: 1em;
        margin: 8px;
    }
    
    .encryption-section {
        padding: 20px 15px;
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }
    
    .container {
        padding: 20px 15px;
    }
    
    h1 {
        font-size: 1.8em;
    }
    
    .upload-area {
        padding: 25px 10px;
    }
    
    .upload-icon {
        font-size: 2.5em;
    }
    
    .btn {
        width: 100%;
        margin: 5px 0;
    }
}