body {
    background: linear-gradient(135deg, #e6f7ff 0%, #dff6ff 60%);
    font-family: 'Segoe UI', Tahoma, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    -webkit-font-smoothing: antialiased;
}

.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.login-form {
    background: rgba(255,255,255,0.72);
    backdrop-filter: blur(6px) saturate(120%);
    -webkit-backdrop-filter: blur(6px) saturate(120%);
    padding: 28px 28px 22px 28px;
    border-radius: 14px;
    box-shadow: 0 6px 22px rgba(3,22,52,0.08);
    border: 1px solid rgba(15,105,163,0.08);
    width: 380px;
    max-width: 96vw;
    transform: translateY(0);
    transition: transform 260ms ease, box-shadow 260ms ease, border-color 260ms ease;
    animation: fadeInUp 520ms ease both;
}

.login-form:focus-within,
.login-form:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 36px rgba(3,22,52,0.12);
    border-color: rgba(15,105,163,0.14);
}

.login-header { text-align: center; margin-bottom: 14px; }
.login-header h1 { margin: 0; font-size: 18px; color: #0b69a3; opacity: 0.95; }
.login-header h2 { margin: 6px 0 6px; font-size: 28px; color: #056aa8; letter-spacing: 0.2px; }
.login-header .subtitle { margin: 0; font-size: 13px; color: rgba(10,30,50,0.7); }

h2 { text-align: center; color: #333; }

input {
    width: 100%;
    padding: 12px 14px;
    margin: 10px 0;
    border: 1px solid rgba(5,106,168,0.12);
    background: rgba(255,255,255,0.6);
    border-radius: 10px;
    box-sizing: border-box; 
    font-size: 14px;
    transition: border-color 200ms ease, box-shadow 200ms ease, background-color 200ms ease;
}

input:focus {
    outline: none;
    border-color: rgba(5,106,168,0.28);
    box-shadow: 0 6px 18px rgba(6,78,120,0.06);
    background: rgba(255,255,255,0.78);
}

button {
    width: 100%;
    padding: 12px;
    background: linear-gradient(90deg, #7dd3fc 0%, #38bdf8 100%);
    color: #06283a;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 800;
    margin-top: 6px;
    box-shadow: 0 6px 18px rgba(56,189,248,0.14);
    transition: transform 180ms ease, box-shadow 180ms ease, filter 180ms ease;
}

button:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 34px rgba(56,189,248,0.18);
    filter: brightness(0.98);
}

button:active { transform: translateY(-1px); }

a { color: #0b69a3; text-decoration: none; }
a:hover { text-decoration: underline; }

.alert { box-shadow: 0 4px 10px rgba(0,0,0,0.08); }

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 420px) {
    .login-form { width: 94%; padding: 18px; }
    .login-header h2 { font-size: 22px; }
    .login-header h1 { font-size: 16px; }
}