/* === BASE STYLES === */
:root {
    --bg-dark: #151c2c;
    --card-bg: #1b223a;
    --card-border: #222f4b;
    --text-main: #e0e0e0;
    --text-muted: #a0a0a0;
    --accent-pink: #ff8ff5;
    --accent-hover: #c54bbb;
    --accent-blue: #4099ff;
    --font-main: system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

body {
    font-family: var(--font-main);
    margin: 0;
    background: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.5;
}

/* === HEADER === */
header {
    background: var(--card-bg);
    color: var(--accent-pink);
    padding: 1rem;
    text-align: center;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--card-border);
}

header h1 {
    font-family: 'Open Sans', sans-serif;
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

header p {
    color: var(--text-muted);
}

/* === LAYOUT === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem 3rem;
}

.grid-layout {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 2rem;
}

@media (max-width: 768px) {
    .grid-layout {
        grid-template-columns: 1fr;
    }
}

/* === CARDS / PANELS === */
.glass-panel,
.card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 6px #404f7a;
    transition: all 0.2s ease;
    margin-bottom: 1rem;
}

.glass-panel h2 {
    color: var(--text-main);
    border-bottom: 1px solid var(--card-border);
    padding-bottom: 0.5rem;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.glass-panel h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--text-main);
    margin-top: 1.5rem;
}

/* === LINKS === */
a {
    color: var(--accent-pink);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* === BUTTONS === */
button,
.btn {
    background-color: var(--accent-pink);
    color: #121212;
    border: none;
    padding: 0.5em 1em;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    font-size: 1rem;
    transition: background-color 0.2s;
    display: inline-block;
    text-decoration: none;
}

button:hover,
.btn:hover {
    background-color: var(--accent-hover);
    text-decoration: none;
}

.btn-secondary {
    background-color: transparent;
    border: 1px solid var(--accent-pink);
    color: var(--accent-pink);
    width: 100%;
}

.btn-secondary:hover {
    background-color: rgba(255, 143, 245, 0.1);
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--card-border);
    color: var(--text-main);
}

.btn-outline:hover {
    border-color: var(--accent-pink);
    color: var(--accent-pink);
    background-color: transparent;
}

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.8rem;
}

/* === FORMS === */
.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
    font-weight: 600;
}

input[type="text"],
input[type="number"],
textarea,
select {
    width: 100%;
    padding: 0.75rem;
    background: #121826;
    border: 1px solid var(--card-border);
    border-radius: 5px;
    color: var(--text-main);
    font-family: var(--font-main);
    font-size: 1rem;
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--accent-pink);
    box-shadow: 0 0 0 2px rgba(255, 143, 245, 0.2);
}

.hint {
    display: block;
    margin-top: 0.4rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.hidden {
    display: none;
}

/* Radio Cards */
.radio-group {
    display: flex;
    gap: 1rem;
}

.radio-card {
    flex: 1;
    position: relative;
    cursor: pointer;
}

.radio-card input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.radio-card span {
    display: block;
    padding: 0.75rem;
    text-align: center;
    background: #121826;
    border: 1px solid var(--card-border);
    border-radius: 5px;
    transition: all 0.2s;
}

.radio-card input:checked+span {
    border-color: var(--accent-pink);
    color: var(--accent-pink);
    background: rgba(255, 143, 245, 0.05);
}

/* Artifact Items */
.artifact-item {
    background: #121826;
    border: 1px solid var(--card-border);
    border-radius: 5px;
    padding: 1rem;
    margin-bottom: 1rem;
    position: relative;
}

.remove-artifact {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: none;
    border: none;
    color: #ff6b6b;
    padding: 0;
    font-size: 1.2rem;
}

.remove-artifact:hover {
    background: none;
    color: #ff4d4d;
}

/* Previews */
.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.svg-container {
    background: #0d1117;
    border: 1px solid var(--card-border);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 150px;
    overflow: auto;
}

.svg-container.loading {
    opacity: 0.5;
}

pre {
    background: #0d1117;
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--card-border);
    overflow-x: auto;
    margin-bottom: 1.5rem;
}

code {
    font-family: var(--font-mono);
    color: var(--accent-blue);
    font-size: 0.9rem;
}

.instructions ol {
    margin-left: 1.5rem;
    color: var(--text-muted);
}

.instructions li {
    margin-bottom: 0.5rem;
}

/* Import Modal */
.import-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.import-modal-overlay.hidden {
    display: none;
}

.import-modal {
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
    animation: modal-in 0.2s ease-out;
}

.import-modal textarea {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    resize: vertical;
    min-height: 180px;
}

@keyframes modal-in {
    from { opacity: 0; transform: translateY(-20px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* Mobile */
@media (max-width: 600px) {
    header h1 {
        font-size: 1.5rem;
    }
}