:root {
    --login-primary: #4361ee;
    --login-primary-dark: #3a56d4;
}

body {
    background: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

body::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background:
        radial-gradient(circle at 20% 50%, rgba(67, 97, 238, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(108, 92, 231, 0.12) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(99, 110, 255, 0.1) 0%, transparent 50%);
    animation: bgShift 20s ease-in-out infinite;
    pointer-events: none;
    z-index: 0;
}

@keyframes bgShift {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(2%, -1%) rotate(1deg); }
    66% { transform: translate(-1%, 2%) rotate(-1deg); }
}

.login-wrapper {
    position: relative;
    z-index: 1;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.login-card {
    width: 400px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.2),
        0 2px 8px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.6);
    padding: 40px 36px 32px;
    animation: cardIn 0.5s ease;
}

@keyframes cardIn {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.login-logo {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.login-logo-circle {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--login-primary) 0%, #6c5ce7 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 14px rgba(67, 97, 238, 0.35);
}

.login-logo-circle svg {
    color: #fff;
}

.login-card h3 {
    text-align: center;
    margin-bottom: 4px;
    color: #2c3e50;
    font-weight: 700;
    font-size: 22px;
    letter-spacing: 0.5px;
}

.login-card .subtitle {
    text-align: center;
    color: #7f8c8d;
    margin-bottom: 28px;
    font-size: 13px;
    letter-spacing: 1px;
}

.login-card .alert {
    font-size: 13px;
    padding: 10px 14px;
    border-radius: 8px;
    margin-bottom: 16px;
}

.login-card .input-group {
    position: relative;
    margin-bottom: 4px;
}

.login-card .input-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: #bdc3c7;
    z-index: 2;
    display: flex;
    align-items: center;
    transition: color 0.2s ease;
    pointer-events: none;
}

.login-card .form-control {
    padding-left: 40px;
    border-radius: 8px;
    border: 1px solid #e8ecf1;
    font-size: 14px;
    padding: 10px 14px 10px 40px;
    transition: all 0.2s ease;
    color: #2c3e50;
    background: #fafbfc;
}

.login-card .form-control:focus {
    border-color: var(--login-primary);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.12);
    background: #fff;
}

.login-card .form-control:focus + .input-icon,
.login-card .form-control:focus ~ .input-icon {
    color: var(--login-primary);
}

.login-card .form-control::placeholder {
    color: #bdc3c7;
}

.login-card .form-label {
    font-weight: 500;
    color: #555;
    font-size: 13px;
    margin-bottom: 6px;
}

.login-card .text-danger {
    font-size: 12px;
    display: block;
    margin-top: 4px;
}

.login-card .btn-login {
    width: 100%;
    padding: 11px;
    font-size: 15px;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    background: linear-gradient(135deg, var(--login-primary) 0%, #6c5ce7 100%);
    color: #fff;
    letter-spacing: 2px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 14px rgba(67, 97, 238, 0.3);
    margin-top: 8px;
}

.login-card .btn-login:hover {
    background: linear-gradient(135deg, var(--login-primary-dark) 0%, #5b4cdb 100%);
    box-shadow: 0 6px 20px rgba(67, 97, 238, 0.4);
    transform: translateY(-1px);
}

.login-card .btn-login:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(67, 97, 238, 0.3);
}

.login-footer {
    text-align: center;
    margin-top: 24px;
    color: rgba(255, 255, 255, 0.4);
    font-size: 12px;
    letter-spacing: 0.5px;
}