:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --bg-dark: #0f172a;
    --card-bg: rgba(255, 255, 255, 0.95);
    --text-main: #1e293b;
    --text-muted: #64748b;
}

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-dark);
    position: relative;
    overflow: hidden;
}

/* Background Animated Glows */
body::before,
body::after {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    filter: blur(100px);
    z-index: -1;
    opacity: 0.5;
    animation: pulse 20s infinite alternate cubic-bezier(0.4, 0, 0.2, 1);
}

body::before {
    background: radial-gradient(circle, rgba(37, 99, 235, 0.3) 0%, transparent 70%);
    top: -150px;
    left: -150px;
}

body::after {
    background: radial-gradient(circle, rgba(139, 92, 246, 0.3) 0%, transparent 70%);
    bottom: -150px;
    right: -150px;
}

@keyframes pulse {
    0% {
        transform: scale(1) translate(0, 0);
    }

    100% {
        transform: scale(1.1) translate(100px, 50px);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 2.5rem;
    padding: 3.5rem 3rem;
    width: 100%;
    max-width: 440px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
    z-index: 10;
    animation: fadeInDown 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.brand-icon {
    width: 64px;
    height: 64px;
    background: var(--primary);
    border-radius: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 1.5rem;
    box-shadow: 0 10px 20px -5px rgba(37, 99, 235, 0.5);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.login-card:hover .brand-icon {
    transform: rotate(-5deg) scale(1.05);
}

.login-header h2 {
    color: var(--text-main);
    font-weight: 800;
    font-size: 2rem;
    letter-spacing: -0.04em;
    text-align: center;
    margin-bottom: 0.5rem;
}

.login-header p {
    color: var(--text-muted);
    text-align: center;
    font-size: 0.875rem;
    margin-bottom: 2.5rem;
    font-weight: 500;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-size: 0.7rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 0.6rem;
    padding-left: 0.5rem;
}

.input-wrapper {
    position: relative;
}

.input-wrapper i {
    position: absolute;
    left: 1.25rem;
    top: 50%;
    transform: translateY(-50%);
    color: #94a3b8;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: 1rem 1rem 1rem 3.25rem;
    background-color: #f8fafc;
    border: 2px solid #f1f5f9;
    border-radius: 1.25rem;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-main);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-sizing: border-box;
}

.form-control:hover {
    border-color: #e2e8f0;
}

.form-control:focus {
    outline: none;
    background-color: white;
    border-color: var(--primary);
    box-shadow: 0 0 0 5px rgba(37, 99, 235, 0.1);
}

.form-control:focus+i {
    color: var(--primary);
}

.btn-login {
    width: 100%;
    padding: 1.125rem;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 1.25rem;
    font-size: 0.9rem;
    font-weight: 800;
    letter-spacing: 0.025em;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 2rem;
    box-shadow: 0 4px 6px -1px rgba(37, 99, 235, 0.2);
}

.btn-login:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 15px 25px -5px rgba(37, 99, 235, 0.4);
}

.btn-login:hover i {
    transform: translateX(4px);
}

.btn-login i {
    transition: transform 0.3s ease;
    font-size: 0.8rem;
}

.btn-login:active {
    transform: translateY(0);
}

.alert {
    background-color: #fff1f2;
    border: 1px solid #ffe4e6;
    color: #be123c;
    padding: 1.25rem;
    border-radius: 1.25rem;
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 0.875rem;
    animation: shake 0.6s cubic-bezier(.36, .07, .19, .97) both;
}

@keyframes shake {

    10%,
    90% {
        transform: translate3d(-1px, 0, 0);
    }

    20%,
    80% {
        transform: translate3d(2px, 0, 0);
    }

    30%,
    50%,
    70% {
        transform: translate3d(-4px, 0, 0);
    }

    40%,
    60% {
        transform: translate3d(4px, 0, 0);
    }
}

footer {
    position: absolute;
    bottom: 2.5rem;
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.025em;
    animation: fadeIn 1.5s ease-out 0.5s both;
    text-align: center;
}

footer a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: color 0.3s ease;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 1px;
}

footer a:hover {
    color: white;
    border-bottom-color: var(--primary);
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@media (max-width: 480px) {
    .login-card {
        padding: 2.5rem 2rem;
        margin: 1.5rem;
    }
}