:root {
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --bg: #f9fafb;
    --surface: #ffffff;
    --text: #1f2937;
    --text-muted: #6b7280;
    --border: #e5e7eb;
    --danger: #ef4444;
    --success: #22c55e;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.5;
    margin: 0;
    padding: 0;
}

/* Layout */
.container {
    max-width: 800px;
    margin: 40px auto;
    padding: 0 20px;
}

.flex { display: flex; gap: 1rem; align-items: center; }
.flex-col { flex-direction: column; }
.justify-between { justify-content: space-between; }
.items-center { align-items: center; }
.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }

/* Components */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    text-decoration: none;
    transition: background-color 0.2s;
    font-size: 0.875rem;
}

.btn-primary {
    background-color: var(--primary);
    color: white;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
}

/* Forms */
input, select, textarea {
    display: block;
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    margin-bottom: 1rem;
    font-size: 1rem;
    box-sizing: border-box;
}

input:focus, select:focus, textarea:focus {
    outline: 2px solid var(--primary);
    border-color: transparent;
}

/* Typography */
h1, h2, h3 { margin-top: 0; margin-bottom: 0.5em; font-weight: 600; }
h1 { font-size: 2rem; }
.text-muted { color: var(--text-muted); font-size: 0.875rem; }

/* Utilities */
.hidden { display: none; }
.mt-4 { margin-top: 1rem; }
.mb-4 { margin-bottom: 1rem; }

/* HTMX Indicators */
.htmx-indicator { opacity: 0; transition: opacity 200ms ease-in; }
.htmx-request .htmx-indicator, .htmx-request.htmx-indicator { opacity: 1; }