/* ===== Reset & Base Styles ===== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', sans-serif;
}

body {
    background: #f5f7fa; /* light neutral background */
    color: #333;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ===== Login Container ===== */
.login-container {
    background: #ffffff; /* pure white container */
    padding: 2rem;
    border-radius: 1rem;
    width: 100%;
    max-width: 400px;
    text-align: center;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

.login-container h1 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: #1a3e7c; /* professional blue */
    letter-spacing: 1px;
}

/* ===== Form ===== */
form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    text-align: left;
}

label {
    font-size: 0.9rem;
    color: #555;
}

input {
    padding: 0.8rem;
    border: 1px solid #ccc;
    border-radius: 0.5rem;
    background: #f9f9f9;
    color: #333;
    outline: none;
    transition: all 0.2s ease-in-out;
}

input:focus {
    border-color: #1a3e7c;
    box-shadow: 0 0 0 2px rgba(26, 62, 124, 0.2);
    background: #fff;
}

/* ===== Button ===== */
button {
    padding: 0.9rem;
    background: #1a3e7c; /* main blue */
    color: #fff;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    font-weight: bold;
    transition: background 0.3s ease, transform 0.1s ease;
}

button:hover {
    background: #2a50a1; /* slightly lighter blue on hover */
    transform: translateY(-2px);
}

button:active {
    transform: translateY(0);
}

/* ===== Register Link ===== */
p {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: #555;
}

a {
    color: #1a3e7c;
    text-decoration: none;
    font-weight: 500;
}

a:hover {
    text-decoration: underline;
}

.email-warning {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: #d97706; /* amber/yellow warning */
    text-align: center;
    line-height: 1.4;
}