/* Reset & Base Styles */

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

:root {
--bg-color: #f8fafc;
--card-bg: #ffffff;
--primary-color: #2563eb;
--primary-hover: #1d4ed8;
--text-main: #0f172a;
--text-muted: #64748b;
--border-color: #e2e8f0;
--shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08);
--radius: 12px;
}

body {
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
background-color: var(--bg-color);
color: var(--text-main);
line-height: 1.6;
display: flex;
justify-content: center;
align-items: center;
min-height: 100vh;
padding: 20px;
}

/* Layout & Container */
.container {
width: 100%;
max-width: 600px;
background: var(--card-bg);
border: 1px solid var(--border-color);
border-radius: var(--radius);
box-shadow: var(--shadow-md);
padding: 32px;
}

/* Header */
header {
margin-bottom: 24px;
}

h1 {
font-size: 1.75rem;
font-weight: 700;
color: var(--text-main);
margin-bottom: 8px;
letter-spacing: -0.025em;
}

p.subtitle {
color: var(--text-muted);
font-size: 0.95rem;
}

/* Components */
.card {
background-color: var(--bg-color);
border: 1px solid var(--border-color);
border-radius: calc(var(--radius) - 4px);
padding: 20px;
margin-bottom: 24px;
}

.card h2 {
font-size: 1.1rem;
font-weight: 600;
margin-bottom: 8px;
}

.card p {
font-size: 0.9rem;
color: var(--text-muted);
}

/* Actions */
.btn-group {
display: flex;
gap: 12px;
}

.btn {
display: inline-flex;
align-items: center;
justify-content: center;
padding: 10px 18px;
font-size: 0.9rem;
font-weight: 500;
border-radius: 8px;
border: 1px solid transparent;
cursor: pointer;
text-decoration: none;
transition: all 0.2s ease;
}

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

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

.btn-secondary {
background-color: #ffffff;
border-color: var(--border-color);
color: var(--text-main);
}

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

/* Footer */
footer {
margin-top: 24px;
padding-top: 16px;
border-top: 1px solid var(--border-color);
text-align: center;
font-size: 0.8rem;
color: var(--text-muted);
}