@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=JetBrains+Mono&display=swap');

:root {
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --danger-color: #ef4444;
    --danger-hover: #dc2828;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --focus-ring: rgba(99, 102, 241, 0.5);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    color: var(--text-main);
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1rem;
    background-color: var(--bg-color);
    -webkit-font-smoothing: antialiased;
}

.container {
    background-color: var(--card-bg);
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

h2 {
    text-align: center;
    color: var(--text-main);
    font-size: 2rem;
    font-weight: 600;
    margin-top: 0;
    margin-bottom: 1.5rem;
    letter-spacing: -0.025em;
}

textarea,
input[type="number"],
select {
    width: 100%;
    padding: 0.75rem 1rem;
    margin-bottom: 1.25rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    box-sizing: border-box;
    font-size: 1rem;
    font-family: inherit;
    background-color: #fff;
    color: var(--text-main);
    transition: all 0.2s ease;
}

textarea {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    resize: vertical;
}

textarea:focus,
input[type="number"]:focus,
select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--focus-ring);
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-main);
    font-size: 0.95rem;
}

button {
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    padding: 0.875rem 1.5rem;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
}

button:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
}

button:active {
    transform: translateY(0);
}

#clearBtn {
    background-color: var(--danger-color) !important;
}

#clearBtn:hover {
    background-color: var(--danger-hover) !important;
}

#qrCodes {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 2rem;
}

.qr-code-container {
    text-align: center;
    width: 100%;
    margin-bottom: 500px;
    transition: margin-bottom 0.3s ease;
    background: #fff;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    box-sizing: border-box;
}

.qr-code-container:first-of-type {
    margin-bottom: 0;
}

.qr-code-container img {
    width: 100%;
    max-width: 400px;
    height: auto;
    pointer-events: none;
    user-select: none;
    border-radius: 0.5rem;
}

.qr-code-container p {
    margin-top: 1rem;
    margin-bottom: 0;
    font-weight: 500;
    color: var(--text-muted);
}

#debugBlock {
    display: none;
    margin-top: 1.5rem;
    padding: 1.5rem;
    background-color: #f1f5f9;
    border-radius: 0.75rem;
    font-size: 0.9rem;
    border: 1px solid var(--border-color);
}

#debugBlock h3 {
    text-align: left;
    margin-top: 0;
    font-size: 1.25rem;
    color: var(--text-main);
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

#debugBlock p {
    margin: 0.75rem 0;
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
}

#debugBlock span {
    color: var(--text-main);
    font-weight: 600;
}

#debugBlock textarea {
    margin-top: 0.5rem;
    background-color: #fff;
}

#debugCheckboxContainer {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

#debugCheckboxContainer label {
    margin-bottom: 0;
    margin-right: 0.5rem;
    color: var(--text-muted);
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.05em;
}

body>p:last-child {
    text-align: center;
    color: #94a3b8;
    font-size: 0.85rem;
    margin-top: 1rem;
    padding-bottom: 2rem;
}