:root {
    --primary: #2563eb;
    --bg: #f1f5f9;
    --card: #ffffff;
    --border: #e5e7eb;
    --text: #1f2937;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Segoe UI", Roboto, Arial, sans-serif;
    background: var(--bg);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.card {
    background: var(--card);
    width: 100%;
    max-width: 420px;
    padding: 28px;
    border-radius: 16px;
    box-shadow: 0 20px 35px rgba(0,0,0,0.08);
}

.header {
    text-align: center;
    margin-bottom: 24px;
}

.header h1 {
    margin: 0;
    font-size: 26px;
    color: var(--primary);
}

.credit {
    display: block;
    margin-top: 4px;
    font-size: 12px;
    font-weight: 600;
    color: #475569;
}

.header p {
    margin-top: 6px;
    font-size: 14px;
    color: #6b7280;
}

.form-group {
    margin-bottom: 16px;
}

label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 14px;
    color: var(--text);
}

input, select {
    width: 100%;
    padding: 11px 12px;
    font-size: 14px;
    border-radius: 10px;
    border: 1px solid var(--border);
}

input:focus, select:focus {
    border-color: var(--primary);
    outline: none;
}

small {
    display: block;
    margin-top: 6px;
    font-size: 12px;
    color: #6b7280;
}

button {
    width: 100%;
    margin-top: 10px;
    padding: 12px;
    font-size: 15px;
    font-weight: 600;
    border-radius: 12px;
    border: none;
    cursor: pointer;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    color: #fff;
}

button:hover {
    opacity: 0.95;
}

.footer-text {
    text-align: center;
    margin-top: 10px;
    font-size: 12px;
    color: #6b7280;
}

.footer-text span {
    display: block;
    margin-bottom: 4px;
    font-weight: 600;
    color: #475569;
}