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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
    background: linear-gradient(135deg, #e8f4f8 0%, #d4e8f5 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 410px;
}

.card {
    background: white;
    border-radius: 16px;
    padding: 40px 32px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    text-align: center;
}

h1 {
    font-size: 2.1em;
    color: #1a3a52;
    margin-bottom: 8px;
}

.subtitle {
    font-size: 1.09em;
    color: #667a8a;
    margin-bottom: 23px;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 18px;
}

.login-form label {
    text-align: left;
    color: #1a3a52;
    font-weight: 600;
    font-size: 1em;
    margin-bottom: 2px;
}

.login-form input {
    padding: 11px 12px;
    border-radius: 7px;
    border: 2px solid #c7d3db;
    font-size: 1em;
    background: #f5f8fb;
    outline: none;
    transition: border 0.2s;
}

.login-form input:focus {
    border: 2px solid #2172e6;
    background: #f0f7fd;
}

.login-btn {
    margin-top: 16px;
    padding: 13px;
    background: #2172e6;
    color: white;
    font-size: 1.1em;
    font-weight: bold;
    border: none;
    border-radius: 8px;
    transition: background 0.2s, transform 0.2s;
    cursor: pointer;
}
.login-btn:hover {
    background: #1a5ac0;
    transform: scale(1.03);
}

.register-link {
    margin-bottom: 8px;
    font-size: 0.96em;
    color: #667a8a;
}
.register-link a {
    color: #2172e6;
    text-decoration: none;
    font-weight: 600;
}
.register-link a:hover {
    text-decoration: underline;
}

.back-link {
    margin-top: 2px;
}

.back-link a {
    color: #2172e6;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s;
}
.back-link a:hover {
    color: #1a5ac0;
}

.card-footer {
    margin-top: 26px;
    padding-top: 20px;
    border-top: 2px solid #e0e8f0;
    font-size: 0.85em;
    color: #999;
}