:root {
    /* Color Palette */
    --color-bg-primary: #000;
    --color-bg-secondary: #1a1a1a;
    --color-text-primary: #fff;
    --color-text-secondary: #ccc;
    --color-text-muted: #888;
    --color-text-placeholder: #555;

    --color-accent-primary: #ffd700;
    --color-accent-hover: #ffed4e;
    --color-accent-muted: #a69c64;

    --color-border-light: #222;
    --color-border-medium: #333;
    --color-border-disabled: #666;

    --color-success-bg: #1a4d1a;
    --color-success-text: #4ade80;
    --color-error-bg: #4d1a1a;
    --color-error-text: #f87171;
}

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

body {
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    font-family: 'Courier New', monospace;
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 60px;
}

.logo {
    font-size: 16px;
}

.tagline {
    font-size: 16px;
}

.tools {
    margin-top: 40px;
}

.tool-link {
    color: var(--color-accent-primary);
    text-decoration: none;
    font-size: 16px;
}

.tool-link:hover {
    text-decoration: underline;
}

.tool-description {
    color: var(--color-text-primary);
    margin-left: 0;
    font-size: 16px;
}

/* Download Page Styles */
.download-container {
    max-width: 500px;
    margin: 60px auto 0;
}

.download-header {
    margin-bottom: 40px;
}

.download-header h1 {
    color: var(--color-accent-muted);
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 10px;
}

.download-subtitle {
    color: var(--color-text-muted);
    font-size: 14px;
}

.download-form {
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    color: var(--color-text-primary);
}

.form-group input[type="email"] {
    width: 100%;
    padding: 12px;
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border-medium);
    color: var(--color-text-primary);
    font-family: 'Courier New', monospace;
    font-size: 16px;
}

.form-group input[type="email"]:focus {
    outline: none;
    border-color: var(--color-accent-primary);
}

.form-group input[type="email"]::placeholder {
    color: var(--color-text-placeholder);
}

.submit-button {
    width: 100%;
    padding: 12px;
    background-color: var(--color-accent-primary);
    color: var(--color-bg-primary);
    border: none;
    font-family: 'Courier New', monospace;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.submit-button:hover {
    background-color: var(--color-accent-hover);
}

.submit-button:disabled {
    background-color: var(--color-border-disabled);
    cursor: not-allowed;
}

.message {
    margin-top: 20px;
    padding: 12px;
    font-size: 14px;
    display: none;
}

.message.success {
    display: block;
    background-color: var(--color-success-bg);
    color: var(--color-success-text);
    border: 1px solid var(--color-success-text);
}

.message.error {
    display: block;
    background-color: var(--color-error-bg);
    color: var(--color-error-text);
    border: 1px solid var(--color-error-text);
}

/* Viewer Page Styles */
.viewer-container {
    max-width: 800px;
    margin: 60px auto 0;
}

.viewer-header {
    margin-bottom: 40px;
}

.viewer-header h1 {
    color: var(--color-accent-muted);
    font-size: 32px;
    font-weight: bold;
    margin-bottom: 10px;
}

.viewer-subtitle {
    color: var(--color-text-muted);
    font-size: 16px;
}

.viewer-section {
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--color-border-light);
}

.viewer-section:last-child {
    border-bottom: none;
}

.viewer-section h2 {
    color: var(--color-accent-primary);
    font-size: 20px;
    margin-bottom: 15px;
}

.viewer-section h3 {
    color: var(--color-accent-muted);
    font-size: 16px;
    margin-top: 25px;
    margin-bottom: 10px;
}

.viewer-section h4 {
    color: var(--color-accent-primary);
    font-size: 14px;
    margin-bottom: 8px;
}

.viewer-section p {
    color: var(--color-text-secondary);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 15px;
}

.viewer-section code {
    background-color: var(--color-bg-secondary);
    color: var(--color-accent-primary);
    padding: 2px 6px;
    font-family: 'Courier New', monospace;
    font-size: 13px;
}

.code-block {
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border-medium);
    padding: 15px;
    margin: 15px 0;
    overflow-x: auto;
}

.code-block code {
    background-color: transparent;
    padding: 0;
    display: block;
    color: var(--color-success-text);
}

.option-block {
    margin-bottom: 25px;
}

.download-link {
    display: inline-block;
    padding: 12px 24px;
    background-color: var(--color-accent-primary);
    color: var(--color-bg-primary);
    text-decoration: none;
    font-size: 14px;
    font-weight: bold;
    transition: background-color 0.2s;
    margin-top: 10px;
}

.download-link:hover {
    background-color: var(--color-accent-hover);
}

.important-notice {
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-accent-primary);
    padding: 20px;
    margin-bottom: 40px;
}

.important-notice h2 {
    margin-top: 0;
}

.important-notice strong {
    color: var(--color-accent-primary);
}