@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

:root {
    --bg-color: #0b0f19;
    --glass-bg: rgba(22, 29, 47, 0.5);
    --text-color: #cdd6f4;
    --header-color: #ffffff;
    --accent-color: #00f2ff;
    --accent-glow: rgba(0, 242, 255, 0.5);
    --button-bg: linear-gradient(145deg, #1d2b4a, #111a2f);
    --button-hover-bg: linear-gradient(145deg, #2c3f6b, #1a2747);
    --warning-color: #ffcc00;
    --warning-bg: rgba(255, 204, 0, 0.1);
    --error-color: #ff5555;
    --border-color: rgba(0, 242, 255, 0.2);
    --font-family-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", sans-serif;
    --font-family-mono: "Fira Code", "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    --border-radius: 8px;
    --transition-speed: 0.3s;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    font-family: var(--font-family-sans);
    margin: 0;
    background-color: var(--bg-color);
    background-image: radial-gradient(circle at 1% 1%, rgba(0, 242, 255, 0.1) 0px, transparent 300px),
        radial-gradient(circle at 99% 99%, rgba(0, 242, 255, 0.1) 0px, transparent 300px);
    color: var(--text-color);
    font-size: 14px;
    line-height: 1.6;
}

.main-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    min-height: 100vh;
    padding: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
    animation: fadeIn 0.5s ease-out;
}

.page-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--header-color);
    margin: 0 0 0.5rem 0;
}

.presets-panel {
    background: var(--glass-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1rem 1.25rem;
}

.presets-panel h3 {
    margin: 0 0 0.75rem 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--header-color);
}

.presets-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.preset-button {
    background: var(--button-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 600;
    transition: all var(--transition-speed) ease;
}

.preset-button:hover,
.preset-button.active {
    background: var(--accent-color);
    color: var(--bg-color);
    box-shadow: 0 0 15px var(--accent-glow);
    border-color: var(--accent-color);
}

.output-box {
    background: var(--glass-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
}

.output-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

#copy-button {
    background-color: transparent;
    color: var(--accent-color);
    border: 1px solid var(--accent-color);
    padding: 0.35rem 1rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.8rem;
    transition: all var(--transition-speed) ease;
}

#copy-button:hover {
    background-color: var(--accent-color);
    color: var(--bg-color);
    box-shadow: 0 0 15px var(--accent-glow);
}

#output-pre {
    margin: 0;
    padding: 1.25rem;
    overflow-x: auto;
}

#output-code {
    font-family: var(--font-family-mono);
    font-size: 0.9rem;
    white-space: pre;
    word-break: break-all;
    color: var(--text-color);
}

.config-panel {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.header-module {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    transition: background-color var(--transition-speed) ease;
}

.header-module summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1.25rem;
    cursor: pointer;
    outline: none;
    list-style: none;
    background: var(--button-bg);
    border-radius: var(--border-radius);
    transition: all var(--transition-speed) ease;
}

.header-module summary::-webkit-details-marker {
    display: none;
}

.module-content {
    padding: 1.25rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    font-weight: 500;
    color: var(--text-color);
    font-size: 0.9rem;
    margin-bottom: 0.35rem;
    display: flex;
    align-items: center;
}

.form-group input,
.form-group select {
    width: 100%;
    background-color: var(--bg-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 0.5rem 0.75rem;
    font-size: 0.9rem;
    font-family: var(--font-family-mono);
    transition: all var(--transition-speed) ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 10px var(--accent-glow);
}

.form-group input.input-invalid {
    border-color: var(--error-color);
    box-shadow: 0 0 10px rgba(255, 85, 85, 0.3);
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.checkbox-group label {
    font-weight: 400;
    font-size: 0.9rem;
    cursor: pointer;
}

.validation-error {
    color: var(--error-color);
    font-size: 0.8rem;
    margin-top: 0.25rem;
    min-height: 1.2em;
}

.guidance-panel {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1rem;
}

.guidance-message {
    border-left-width: 4px;
    border-left-style: solid;
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius);
    font-size: 0.85rem;
    line-height: 1.5;
}

.guidance-message--info {
    border-color: var(--accent-color);
    background-color: rgba(0, 242, 255, 0.1);
}

.guidance-message--warning {
    border-color: var(--warning-color);
    background-color: var(--warning-bg);
}

.guidance-message--error {
    border-color: var(--error-color);
    background-color: rgba(255, 85, 85, 0.1);
}

.guidance-title {
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.guidance-message p {
    margin: 0;
}

.guidance-message code {
    background-color: rgba(0, 0, 0, 0.2);
    padding: 0.1em 0.3em;
    border-radius: 4px;
    font-family: var(--font-family-mono);
}

.info-icon {
    display: inline-block;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background-color: rgba(205, 214, 244, 0.5);
    color: var(--bg-color);
    text-align: center;
    font-size: 12px;
    line-height: 16px;
    cursor: help;
    margin-left: 0.5rem;
    font-style: italic;
    font-family: "Times New Roman", Times, serif;
    flex-shrink: 0;
}

.tooltip {
    position: absolute;
    display: none;
    background-color: #0b0f19;
    color: var(--text-color);
    border: 1px solid var(--accent-color);
    border-radius: var(--border-radius);
    padding: 0.5rem 0.75rem;
    font-size: 0.85rem;
    max-width: 250px;
    z-index: 100;
    pointer-events: none;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
    opacity: 0;
    transition: opacity var(--transition-speed) ease;
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

.toggle-switch .toggle-input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-label {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all var(--transition-speed) ease;
}

.toggle-label:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 3px;
    bottom: 3px;
    background-color: var(--text-color);
    border-radius: 50%;
    transition: all var(--transition-speed) ease;
}

.toggle-input:checked+.toggle-label {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
}

.toggle-input:checked+.toggle-label:before {
    transform: translateX(20px);
    background-color: var(--bg-color);
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem 1.25rem;
}

.page-footer {
    padding: 1.5rem;
    text-align: center;
    border-top: 1px solid var(--border-color);
    margin: 1.5rem auto 0;
    width: 100%;
    max-width: 1200px;
}

.page-footer a {
    color: var(--text-color);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: color var(--transition-speed) ease;
}

.page-footer a:hover {
    color: var(--accent-color);
}

.page-footer a:hover svg {
    fill: var(--accent-color);
}

.page-footer svg {
    transition: fill var(--transition-speed) ease;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}