/* Fonts */
@font-face {
    font-family: 'bianzhidai_noBG-Base';
    src: url('assets/fonts/bianzhidai_noBG-Base.woff') format('woff');
}

@font-face {
    font-family: 'Space Mono';
    src: url('assets/fonts/SpaceMono-Regular.ttf') format('truetype');
}

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

body {
    font-family: 'Space Mono', monospace;
    background-color: #f8f8f8;
    color: #000000;
    line-height: 1.6;
    font-size: 1rem;
    letter-spacing: -0.02em;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 60px 30px;
}

/* Header Styles */
header {
    text-align: left;
    margin-bottom: 60px;
    padding-bottom: 20px;
    border-bottom: 2px solid #000;
}

header h1 {
    font-family: 'bianzhidai_noBG-Base', sans-serif;
    font-size: 3.6rem;
    font-weight: 700;
    color: #000000;
    margin-bottom: 16px;
    line-height: 1.1;
    max-width: 800px;
}

header p {
    font-size: 1.1rem;
    color: #000000;
    max-width: 600px;
}

/* Main Content */
main {
    padding: 0;
    margin-bottom: 60px;
    position: relative;
}

/* Form Styles */
.form-group {
    margin-bottom: 60px;
    border-top: 1px solid #000;
    padding-top: 30px;
}

.form-group:first-child {
    border-top: none;
    padding-top: 0;
}

.form-group h2 {
    font-family: 'Space Mono', serif;
    font-size: 2rem;
    margin-bottom: 30px;
    color: #000000;
    font-weight: 700;
    letter-spacing: -0.02em;
}

label {
    display: block;
    margin-bottom: 12px;
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

input[type="file"],
input[type="number"],
textarea {
    width: 100%;
    padding: 14px;
    border: 2px solid #000000;
    background-color: #ffffff;
    font-family: 'Space Mono', monospace;
    font-size: 1rem;
    margin-bottom: 15px;
    color: #000000;
}

textarea {
    min-height: 150px;
    resize: vertical;
    line-height: 1.4;
}

/* Align file input and textarea side-by-side */
.config-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

/* Hint Text */
.hint {
    font-size: 0.8rem;
    color: #555;
    margin-top: 8px;
    font-style: italic;
}

/* Button Styles */
.buttons {
    display: flex;
    justify-content: flex-start;
    gap: 25px;
    margin-top: 40px;
}

button,
.button {
    padding: 15px 30px;
    background-color: #f8f8f8;
    color: #000000;
    border: 2px solid #000000;
    font-family: 'Space Mono', monospace;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    font-weight: 700;
    text-decoration: none;
    display: inline-block;
}

button.primary,
.button.primary {
    background-color: #000000;
    color: #ffffff;
}

button:hover,
.button:hover {
    background-color: #eeeeee;
}

button.primary:hover,
.button.primary:hover {
    background-color: #333333;
}

/* Info Section */
.info-section {
    margin-top: 60px;
    padding-top: 40px;
    border-top: 2px solid #000;
}

.info-section h2 {
    font-family: 'Space Mono', serif;
    margin-bottom: 30px;
    font-size: 2rem;
    font-weight: 700;
    color: #000000;
}

.info-section ol {
    padding-left: 30px;
    margin-bottom: 30px;
    list-style-type: decimal;
}

.info-section li {
    margin-bottom: 10px;
    line-height: 1.5;
}

.info-section pre {
    background-color: #ffffff;
    padding: 25px;
    border: 2px solid #000;
    overflow-x: auto;
    font-family: 'Space Mono', monospace;
    font-size: 0.9rem;
    margin-top: 25px;
    line-height: 1.6;
}

/* Messages */
.messages {
    margin-bottom: 40px;
}

.message {
    padding: 20px;
    border: 2px solid;
    margin-bottom: 20px;
    font-size: 0.9rem;
    line-height: 1.5;
}

.message.error {
    background-color: #ffffff;
    color: #c00;
    border-color: #c00;
}

.message.success {
    background-color: #ffffff;
    color: #060;
    border-color: #060;
}

/* Result Page */
.result-page .preview-container {
    overflow-x: auto;
    margin-bottom: 40px;
    padding: 30px;
    border: 2px solid #000000;
    background-color: #ffffff;
}

.result-page .svg-container {
    text-align: center;
}

.result-page .svg-container svg {
    max-width: 100%;
    height: auto;
    border: 1px solid #eee;
    padding: 10px;
}

.result-page .actions {
    display: flex;
    justify-content: flex-start;
    gap: 25px;
    margin-bottom: 40px;
}

/* Info Box */
.info-box {
    background-color: #f8f8f8;
    border: 2px solid #000000;
    padding: 30px;
    margin-top: 40px;
}

.info-box h3 {
    font-family: 'Space Mono', serif;
    font-size: 1.6rem;
    margin-bottom: 20px;
    color: #000000;
    font-weight: 700;
}

.info-box ul {
    padding-left: 25px;
    margin-bottom: 20px;
}

.info-box li {
    margin-bottom: 10px;
    line-height: 1.5;
}

.info-box p {
    margin-bottom: 15px;
}

/* Footer */
footer {
    text-align: center;
    padding-top: 40px;
    padding-bottom: 20px;
    border-top: 2px solid #000;
    margin-top: 60px;
    color: #000;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pattern-results {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 2px solid #000;
}

.pattern-container table {
    border-collapse: collapse;
    margin: 20px 0;
}

.pattern-container td {
    width: 20px;
    height: 20px;
    text-align: center;
    border: 1px solid #eee;
    font-family: 'Space Mono', monospace;
    font-size: 0.8em;
}

.pattern-container .filled {
    background-color: #000;
    color: white;
}

.flash-message {
    padding: 15px;
    margin-bottom: 20px;
    border: 2px solid;
    cursor: pointer;
}

.flash-message.error {
    background-color: #fff3f3;
    border-color: #ff0000;
    color: #cc0000;
}

.flash-message.success {
    background-color: #f3fff3;
    border-color: #00cc00;
    color: #006600;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .container {
        padding: 30px 20px;
    }

    header h1 {
        font-size: 2.2rem;
    }

    .form-group h2,
    .info-section h2 {
        font-size: 1.6rem;
    }

    .config-row {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .buttons,
    .result-page .actions {
        flex-direction: column;
        gap: 15px;
    }

    button,
    .button {
        width: 100%;
    }
}