/* Design Tokens */
:root {
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --bg-color: #f3f4f6;
    --surface: #ffffff;
    --text-main: #111827;
    --text-muted: #6b7280;
    --border: #e5e7eb;
    --radius: 12px;
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', system-ui, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    margin: 0;
}

/* Utilities */
.flex {
    display: flex;
}

.items-center {
    align-items: center;
}

.justify-center {
    justify-content: center;
}

.h-screen {
    height: 100vh;
}

.w-full {
    width: 100%;
}

.text-center {
    text-align: center;
}

.font-bold {
    font-weight: 700;
}

.text-xl {
    font-size: 1.5rem;
}

.text-sm {
    font-size: 0.875rem;
}

.text-gray-500 {
    color: var(--text-muted);
}

.text-primary {
    color: var(--primary);
    text-decoration: none;
}

.mt-4 {
    margin-top: 1rem;
}

.bg-gray-50 {
    background-color: #f9fafb;
}

/* Components */
.btn {
    padding: 0.85rem 1rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 6px rgba(59, 130, 246, 0.2);
}

.input {
    width: 100%;
    padding: 0.85rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    outline: none;
    transition: all 0.2s;
}

.input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}