:root {
    --bg-main: #f4f6f8;
    --bg-surface: #ffffff;
    --bg-surface-hover: #f0f4f8;
    --border: #e1e4e8;
    --text-main: #24292e;
    --text-muted: #6a737d;
    --accent: #0366d6;
    --accent-hover: #005cc5;
    --danger: #d73a49;
    --danger-hover: #cb2431;
    --success: #28a745;
    --input-bg: #ffffff;
}

.theme-dark {
    --bg-main: #0d1117;
    --bg-surface: #161b22;
    --bg-surface-hover: #21262d;
    --border: #30363d;
    --text-main: #c9d1d9;
    --text-muted: #8b949e;
    --accent: #58a6ff;
    --accent-hover: #79c0ff;
    --danger: #f85149;
    --danger-hover: #ff7b72;
    --success: #3fb950;
    --input-bg: #0d1117;
}

* { box-sizing: border-box; }

body {
    margin: 0; padding: 0;
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    height: 100vh; display: flex; flex-direction: column;
}

/* Header */
.top-nav {
    display: flex; justify-content: space-between; align-items: center;
    padding: 1rem 2rem; background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
}
.logo { display: flex; align-items: center; gap: 10px; color: var(--accent); }
.logo h1 { margin: 0; font-size: 1.5rem; font-weight: 700; color: var(--text-main); }
.a11y-controls { display: flex; gap: 15px; }

/* Buttons */
button {
    cursor: pointer; font-family: inherit; font-weight: 600;
    border-radius: 6px; border: none; padding: 0.5rem 1rem;
    transition: all 0.2s;
}
button i { margin-right: 5px; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-text { background: transparent; color: var(--text-main); }
.btn-text:hover { background: var(--bg-surface-hover); }
.text-danger { color: var(--danger); }
.text-danger:hover { background: rgba(248, 81, 73, 0.1); }

/* Layout */
.app-layout {
    display: flex; flex: 1; overflow: hidden;
}
.factory-panel {
    width: 450px; min-width: 450px; background: var(--bg-surface);
    border-right: 1px solid var(--border); padding: 1.5rem;
    display: flex; flex-direction: column; overflow-y: auto;
}
.editor-panel {
    flex: 1; display: flex; flex-direction: column;
    background: var(--bg-main);
}

/* Step containers */
.step-container { display: none; flex-direction: column; height: 100%; }
.step-container.active { display: flex; }
.step-container h2 { margin-top: 0; margin-bottom: 0.5rem; }
.subtitle { color: var(--text-muted); margin-bottom: 1.5rem; line-height: 1.5; }

/* Container Options */
.container-options { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.btn-container {
    padding: 1.5rem 1rem; background: var(--input-bg); border: 2px solid var(--border);
    color: var(--text-main); font-size: 1rem; display: flex; flex-direction: column;
    align-items: center; gap: 10px; border-radius: 8px;
}
.btn-container i { font-size: 1.5rem; color: var(--accent); margin: 0; }
.btn-container:hover { border-color: var(--accent); background: var(--bg-surface-hover); }

/* Builder Header */
.container-header {
    display: flex; justify-content: space-between; align-items: center;
    padding-bottom: 1rem; border-bottom: 1px solid var(--border); margin-bottom: 1rem;
}
.badge {
    background: var(--accent); color: #fff; padding: 3px 8px; border-radius: 4px;
    font-size: 0.75rem; font-weight: 700; margin-right: 10px;
}
#container-name {
    font-size: 1.25rem; font-weight: 700; color: var(--text-main);
    background: transparent; border: 1px dashed transparent;
    padding: 4px 8px; outline: none; width: 200px;
}
#container-name:focus, #container-name:hover {
    border-color: var(--border); background: var(--input-bg); border-radius: 4px;
}

/* Entry Box */
.entry-box {
    background: var(--input-bg); border: 1px solid var(--border);
    border-radius: 8px; overflow: hidden; margin-bottom: 1.5rem;
}
.entry-tabs {
    display: flex; border-bottom: 1px solid var(--border);
}
.tab-btn {
    flex: 1; padding: 0.75rem; background: var(--bg-surface); border: none;
    border-radius: 0; color: var(--text-muted); font-weight: 600;
}
.tab-btn.active {
    background: var(--input-bg); color: var(--accent);
    border-bottom: 2px solid var(--accent);
}
.entry-form { padding: 1rem; }
.form-group { margin-bottom: 1rem; display: flex; flex-direction: column; gap: 5px; }
.form-group label { font-size: 0.85rem; font-weight: 600; color: var(--text-muted); }
.form-group input[type="text"], .form-group select, .form-group textarea {
    padding: 0.5rem; border: 1px solid var(--border); border-radius: 4px;
    background: var(--bg-surface); color: var(--text-main); font-family: inherit; font-size: 0.95rem;
    outline: none;
}
.form-group input[type="text"]:focus, .form-group select:focus, .form-group textarea:focus {
    border-color: var(--accent);
}
.checkbox-group { flex-direction: row; align-items: center; gap: 10px; margin-top: 1rem; margin-bottom: 0.5rem; }
.checkbox-group input { width: 16px; height: 16px; cursor: pointer; }
.checkbox-group label { cursor: pointer; font-size: 0.95rem; color: var(--text-main); margin: 0; }
.hidden { display: none !important; }

/* List */
.component-list-container { flex: 1; display: flex; flex-direction: column; overflow: hidden; }
.component-list-container h3 { font-size: 0.9rem; margin: 0 0 0.5rem 0; color: var(--text-muted); }
.component-list {
    list-style: none; padding: 0; margin: 0; overflow-y: auto; flex: 1;
    display: flex; flex-direction: column; gap: 8px;
}
.component-list li {
    padding: 0.75rem; background: var(--input-bg); border: 1px solid var(--border);
    border-radius: 6px; display: flex; justify-content: space-between; align-items: center;
    font-size: 0.9rem;
}
.component-list li .comp-type {
    font-size: 0.7rem; background: var(--border); padding: 2px 6px;
    border-radius: 4px; margin-right: 8px; text-transform: uppercase; font-weight: 700;
}
.component-list li .comp-req { color: var(--danger); font-weight: bold; margin-left: 5px; }
.empty-state {
    color: var(--text-muted); text-align: center; padding: 2rem !important;
    background: transparent !important; border: 1px dashed var(--border) !important;
    justify-content: center !important;
}

/* Editor Panel */
.editor-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 0.75rem 1.5rem; background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
}
.editor-header h2 { margin: 0; font-size: 1.1rem; }
#json-editor { flex: 1; }