body {
    margin: 0;
    min-height: 100vh;
    font-family: 'Nunito', 'Segoe UI', sans-serif;
    background: linear-gradient(180deg, #041024 0%, #0b1f3f 100%);
    color: #102a43;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 30px 16px;
    overflow: hidden;
}

body::before,
body::after {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-repeat: repeat;
    background-size: 600px 600px;
    opacity: 0.45;
    animation: particleFlow 24s linear infinite;
}

body::after {
    background-image:
        radial-gradient(2px 2px at 20px 20px, rgba(24, 198, 255, 0.55), transparent 60%),
        radial-gradient(1px 1px at 60px 80px, rgba(88, 211, 255, 0.45), transparent 65%),
        linear-gradient(135deg, rgba(31, 182, 255, 0.08) 0%, rgba(17, 94, 170, 0.08) 100%);
    animation-duration: 32s;
    mix-blend-mode: screen;
}

body::before {
    background-image:
        radial-gradient(3px 3px at 120px 90px, rgba(82, 255, 216, 0.6), transparent 70%),
        radial-gradient(1px 1px at 200px 140px, rgba(21, 146, 255, 0.5), transparent 80%);
}

.login-layout {
    width: 100%;
    max-width: 460px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.login-panel {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.95) 0%, rgba(240, 246, 255, 0.95) 100%);
    border-radius: 28px;
    padding: 36px;
    box-shadow: 0 30px 60px rgba(17, 94, 170, 0.16);
    border: 1px solid rgba(31, 182, 255, 0.16);
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.login-brand h1 {
    margin: 12px 0 8px;
    font-size: 2rem;
    font-weight: 700;
    color: #0f3b6f;
}

.login-brand p {
    margin: 0;
    color: rgba(15, 59, 111, 0.65);
    font-weight: 600;
}

.brand-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 999px;
    background: rgba(31, 182, 255, 0.12);
    color: #1fb6ff;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-weight: 700;
}

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
    text-align: left;
}

.form-group label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: rgba(15, 59, 111, 0.7);
    font-weight: 700;
}

.form-control {
    border-radius: 16px;
    border: 1px solid rgba(31, 182, 255, 0.18);
    background: rgba(17, 94, 170, 0.06);
    padding: 14px 16px;
    font-size: 0.95rem;
    color: #102a43;
    font-weight: 600;
    transition: border-color 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.form-control::placeholder {
    color: rgba(16, 42, 67, 0.45);
}

.form-control:focus {
    outline: none;
    border-color: rgba(31, 182, 255, 0.65);
    box-shadow: 0 0 0 4px rgba(31, 182, 255, 0.2);
    background: rgba(255, 255, 255, 0.95);
}

.recaptcha-wrapper {
    display: flex;
    justify-content: center;
}

.btn-login {
    border: none;
    border-radius: 18px;
    padding: 14px 18px;
    font-size: 0.95rem;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    cursor: pointer;
    color: #ffffff;
    background: linear-gradient(90deg, #1fb6ff 0%, #58d3ff 100%);
    box-shadow: 0 18px 38px rgba(31, 182, 255, 0.25);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 22px 45px rgba(31, 182, 255, 0.35);
}

.login-footer {
    font-size: 0.8rem;
    color: rgba(15, 59, 111, 0.55);
    text-align: center;
}

.login-signature {
    display: block;
    margin-top: 16px;
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: rgba(15, 36, 82, 0.45);
    text-align: center;
    font-weight: 700;
}

.alert {
    padding: 14px 16px;
    border-radius: 16px;
    font-weight: 600;
    font-size: 0.85rem;
    border: 1px solid rgba(244, 63, 94, 0.3);
    background: rgba(244, 63, 94, 0.12);
    color: #b91c1c;
}

@media (max-width: 900px) {
    body {
        padding: 20px 12px;
    }

    .login-layout {
        max-width: 420px;
    }
}

@keyframes particleFlow {
    0% {
        transform: translate3d(-40px, -20px, 0) scale(1.02);
    }
    50% {
        transform: translate3d(20px, 15px, 0) scale(1.05);
    }
    100% {
        transform: translate3d(-40px, -20px, 0) scale(1.02);
    }
}